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SD Fine- Chem limited – Various Openings

SD Fine- Chem limited

FACTORY MANAGER

  • Sc./Ph.D.(Chemistry)/ Chemical Engineer with 15 yrs. experience of managing chemical factory, specially distillation process.
  • Knowledge of GST, Factory Act, licensing work & all other statutory and non statutory regulations required.
  • Liaisoning with Govt. officials for all regulatory requirements.
  • Vision to upgrade the current operation using modern technology.
  • Responsible for productivity of all departments.
  • Handling Union related matters.
  • Ability to guide all dept. in technical matters
  • Handle ISO 9000, 14000 & 22000 documentation,

QC MANAGER

  • D. M.Sc. Organic Chemistry with 15 years’ experience in QC of Chemical /Pharmaceutical company accredited with NABL ISO 17025 certification
  • Having undergone recognized 4 day Training Program for NABL ISO / IEC 17025 and internal audit and 3 day Training Program on Uncertainty of Measurement
  • Proficient in Uncertainty Measurements as well as Proficiency Testing and Validation
  • Expertise in doing wet and instrumental analysis (GC, HPLC, GC MS)
  • Responsibility and Authority to sign all Quality Control records
  • Plan, guide and control all QC activities, safety practices and calibration and use of instruments as per documented SOPs as per ISO 17025 (NABL requirements)
  • Identify Training needs of QC department and impart relevant training
  • Use of Statistical Techniques to take suitable actions for improvement
  • Ability to face customer and regulatory audits

Administrative Office
1502, Marathon Icon, Lower parel, Mumbai-13
Tel 022-24814444 Email: hrcor@sdfine.com

Views on Industry 4.0

Industry 4.0, with its suite of digital technologies, is creating unprecedented buzz in the industry. Industrial Internet of Things (IIoT), Data Analytics, Machine Learning, Artificial Learning and quite a few more, all have implication to disrupt existing manufacturing and business models, drive productivities and profitabilities beyond what was thought possible earlier and open up entirely new opportunities. Process activation companies have been in the forefront of providing such technologies. Chemical Industry Digest sought these views from Sajiv Nath, Managing Director of Yokogawa India- a leading electrical engineering and software company, which are reproduced below.

Sajiv Nath is Managing Director of Yokogawa India Ltd. Prior to Yokogawa, he has worked as Managing Director at Endress+Hauser, India. He completed his engineering in Industrial Electronics from College of Engineering, Pravaranagar and then pursued Masters in Financial Management from K.J. Somaiya Institute of Management Studies and Research.

Chemical Industry Digest (CID): As you know the suite of digital technologies comprising of IIOT, AI, Machine Learning, Data Analytics, Advanced Robotics is expected to take the oil & gas, hydrocarbon and rest of chemical industries to the next paradigm. In what all ways is it going to impact these industries? What in brief are the benefits to these industries? Would this be disruptive as it is made out or would the incorporation bring in changes only incrementally?
Sajiv Nath (SN) : The industry is going through a paradigm shift. Not only the ones mentioned above but all industries and even our personal lives will be greatly impacted with Digital Technologies, rather Digital Transformation, if we can say so.
Digital transformation will enable to monitor the performance rate of the assets continuously and analyse Big Data by using latest AI in devices and platforms and thereby providing instant and accurate information that supports and accelerates the decision making process.
In today’s highly competitive world, each company has to strive to increase productivity with increased level of compliance. Quick and right decision making is the key to sustain in such regime. Digital Technology offers companies the right tools to deal with these challenges.
In Industry perspective, Digitalization means convergence of Operational technologies with Information Technologies. At present the decision support at centre of excellence or decision making at Business Head Quarters are not necessarily connected with plant-level reality on real-time basis. Digital transformation aims to connect the entire business process. Silos have been big deterrent in productivity. In a connected process, silos are bound to disappear, making decisions more accurate and effective.
Digital transformation will encompass the entire business process -right from automation of more processes to realizing SMART manufacturing to optimizing supply-chain leading to improved decision making, creating new business models and greater revenues.
Answering to the question whether there will be any disruption, we feel it will be incremental. Apart from technology , successful Digital Transformation, like any other transformation processes need the buy-in from the people. It needs cultural change and mindset change. First is willingness to change which will be followed by capacity to change.
We also need to understand that it will not be a replacement of the assets you have , rather it will be aimed to extract more values from what you have , by de-bottle necking the process and through change of culture of people. Data and quality of Data is also a challenge which will slow down the process of Digitalization.

CID: Are these technologies more suited for asset-intensive and complex industries like oil & gas, refineries, petrochemicals, etc. or also for mid-sized industries like drugs & pharma and other fine chemicals?
SN:The same or similar questions came to everybody’s mind whenever a paradigm shift has been around the corner. The benefits of Digitalization are for every industry to grab – scale will of course be different. For large industries, it is more essential, simply because of distributed activities. Complexity of the projects are being addressed by the OT side of the equation . That will be continued, however will be supported by the Big Data , Data Analytics and IIoT.
However, the areas of impact and improvement can differ. For example, for Pharmaceutical industries , supply-chain , R&D can be immensely benefited from Digital Transformation.

CID:
How should hydrocarbon and other chemical companies go about implementing the digital transformation of their companies through these technologies? Where should they start and how should they sequence the digitalization? What are the challenges according to you in its implementation?
SN: Not an easy question to answer. Challenges are many and more company specific than industry-specific.
All parties need to work very closely with each other – user, financier , decision-makers, solution -providers need to understand the challenges and opportunities. I would think co-innovation is the only way to be successful in such projects.
Industry has crossed the level “whether to go for Digitalization or not”. Industry headwinds like volatility and cost pressure have forced Industry to think beyond process de-bottle necking. Capital efficiency, Resource Efficiency as well as Asset Efficiency have been of utmost importance to tide over such volatility, and Digital implementation is the answer. Industry has understood.
Now challenges are in terms of quality and large varieties of existing assets, availability and quality of data , fear of loss of investment, mindset , data security and many other. Investment and profitability are also significant consideration. Establishing ROI is making the things little more difficult for decision makers.
Maturity level are at different levels across the industries across demography.

CID:
What functional areas would it benefit the most: process optimization & production, maintenance, environment & safety, supply chain, R&D…?
SN: Entire business process will make a positive impact with co-innovation. Aim is to achieve Resilient Operation ,Optimized Production and Business Innovation.

CID: Can these technologies be retrofitted on existing IT and automation platforms? Or would it need a total to revamp? What about the investment and payback period?

SN: The target is to get maximum out of existing assets and protect the investment. In certain cases or for certain assets , mainly on OT side , retrofitting to a limited scale will be possible. Payback period will largely vary on the present plant condition, scale and digitization proposal – at elementary level or at enterprise level.

CID: With the enormous amount of data being collected due to IIoT, machine learning etc and the need for data analytics, can such data be managed internally (within the companies) or externally through the cloud? And if so, what about cybersecurity issues?

SN: Cloud is an essential part of the Digital Ecosystem. And yes, cybersecurity is also a big challenge. Many companies , including Yokogawa are constantly providing solutions to ensure data security. Even without Digitization, cybersecurity has been a concern. It may lead to market manipulation , device sabotage and even plant destruction. There are quite a few such incidents across the globe. So with or without Digitization and irrespective of industry segments, companies need to follow certain guidelines like isolate the web-facing system from OT/ICS , establish and enforce a “least privilege” culture across IT systems and many others.

CID: How can one allay fears that AI and large scale digital transformation would lead to many unintended consequences as well as make a lot of human resources redundant? And also how can the need for skilled manpower for digital transformation be addressed? Would reskilling of existing manpower help?
SN: Like for any transformation, some skills will be outdated with Digital transformation as well . So, I would state it as an “outdated skill” than “redundant manpower”. As long as reskilling initiatives are taken by industries and people show motivation to learn on the go , it will be a smooth transition without any unintended consequences. Good part is that the skills required for Digitization are related skills . I would like to add that it will cause much less disruption than what was caused by the advent of computers. Change of mindset and action on time – both at decision-making level as well as working level are the keys for smooth transition. Digitization is here to stay and faster we accept the reality, better it is for the industry ,as a whole.

What is the Future of Plastics?

There is worldwide condemnation of plastics due to the accumulation of used and discarded plastics materials in our seas, oceans, rivers, on land- in fact everywhere- choking our ecosystem. The situation is worse in countries like India where the ‘throwaway anywhere’ nature is widespread among people and therefore in India too there is virtually a powerful movement against plastics- mainly single use plastics. From the Central government to State governments legislative actions are being taken to phase out single use plastics.
In this very timely interview, the Founder and Managing Director of Nova Institute who himself is a strong advocate of bio-based and CO2 based economy clears many misinformation on plastics.
Svenja Geerken, Editor, Biobased News interviewed Michael Carus, who says that there are no other materials as of now that offers the kind of versatile properties that plastics provide. The problems associated with plastics are real, he says, but can be solved. The solution is to make plastics sustainable, which is possible. The interview reproduced here, tells you a different story on plastics.

Michael Carus (MSc) (Germany) physicist is founder and managing director of the Nova- Institute. He is working for over 20 years in the field of Bio- and CO2-based economy. He is actively involved in building networks in the fields of agricultural and forestry resources, bio-based chemicals and materials (bio-based polymers, plastics and biocomposites) and industrial biotechnology and biorefinery. He is a member of many societies, associations and international organisations. Carus is consultant on policy in different countries in Europe, Asia and America.

Svenja Geerken, Editor, Bio-based News (SG): Currently, plastics are under great pressure. But you still seem to like plastics?
Michael Carus, Managing Director-Nova Institute (MC): Absolutely. There are no other materials that have such a broad spectrum of properties and can be brought into any conceivable form with the greatest efficiency. In addition, plastics perform better than other materials under most sustainability criteria. This is due on the one hand to the high production efficiency already mentioned and, for example, to their low density with which they can score points in transport. In addition, product properties can often be achieved with much less material input.
SG: So everything is actually good and the current plastic hysteria lacks any basis?
MC: Not at all! There are significant problems, but all of them can be solved and must be solved urgently. It is estimated that around 20% of the plastics produced worldwide end up in the environment uncontrolled, that is 60 million tonnes per year, of which around 8 million tonnes end up in the sea. The rest remains on land in soils, lakes and rivers. This is completely unacceptable. The other problem is the use of fossil carbon as a raw material that escapes into the atmosphere as CO2 at the end of life. This also has no future, the entire chemical industry must switch to renewable carbon – which can come from recycling, biomass or CO2.
SG: According to a recent survey, almost 80% of Germans consider plastics to be harmful rather than indispensable. Can we really solve these problems or should we not switch to other materials?
MC: But to which ones? The reserves of metals are limited and mining often takes place under inhumane conditions. And minerals? Sand for cement is already becoming a scarce commodity worldwide. In the future, we will no longer be able to build our houses from reinforced concrete, as we do today, but rather from plastics. Because their raw material carbon is practically unlimited: As CO2 in the atmosphere, which we can be made usable with the help of renewable energies or as biomass. That is enough raw material for the next millennia. This is the reason why plastics will gain importance and the age of plastics has only just begun. And this is precisely why plastics must become sustainable as quickly as possible and regain a good image.
SG: And who bears the main blame for the whole dilemma?
MC: The chemical and plastics industry, which has systematically tried to sweep problems under the carpet and sit out instead of actively pointing out and solving the problems. As one should expect from a crucial future industry!
SG: What are the mistakes that were made?
MC: The microplastic problem has been well known for at least ten years, which was when the Austrian documentary film “Plastic Planet” was first shown. But the industry acts according to the motto: ignore it, do not talk or write about it, just sit out the problem. The considerable quantities of plastic waste, which are also released into the environment in an uncontrolled manner in the European Union, are systematically missing from the plastic statistics. For decades, bans on hormone-active plasticizers were prevented. Eyes were closed on the large-volume plastic waste exports to developing countries, which count as material recycling. Every expert knew what really happened to the plastics. In the European Union, less than 10% of waste plastics are recycled into new plastics. Thermoplastics can be recycled very well if collected in their pure form, better than most other materials. Instead of tackling the actual problems, it was perceived only as “communication problems”.
And when the plastics industry is asleep, they should not be surprised if the EU Commission and the national environment ministries now take matters into their own hands. The recently adopted plastics strategy, including restrictions and bans on certain disposable plastic products, is the consequence of this behaviour.
SG: And are politics doing better than the industry now in tackling the problem?
MC: I’m afraid not. Of course, there are some sensible measures being taken, such as the ban on oxo-degradable plastics, which decompose particularly quickly into microplastics. However, the “single-use ban” is a purely symbolic policy and a bad one at that, which will have little effect, but will heat up the plastic hysteria, pronounce unnecessary product bans and leave the field to worse materials – without affecting the real problems at all!
There would be a number of measures that would make a real difference on a large scale: Plastic waste export bans, landfill bans, mandatory deposit for all plastic bottles for all types of beverages, a ban on the intentional use of microplastics and increased use of high-quality polymers instead of composite systems, as these are easier to recycle (Design for Recycling). Plastic waste could be systematically collected and recycled worldwide. A global standard for the biodegradation of certain polymers could reduce risks in case that leakage into the environment is unavoidable. And finally, a clear concept is needed on how to move from fossil to renewable carbon by 2050. Or would the plastics industry like to be pilloried in 2050 as one of the largest and last emitters of fossil carbon? As an industry of the future? A photovoltaic area of only 1% of that of the Sahara would suffice to supply the entire chemical industry with renewable carbon – via solar hydrogen and CO2 from the air.
SG: What is so bad about the single-use ban, aren’t many products really pointless or can they be better substituted by other materials?
MC: What is worse about a coffee plastic stirrer than a wooden stirrer if it is properly rinsed or disposed of? Nothing. On the contrary. Due to its efficient production, the plastic stirrer should have a lower carbon footprint and can be materially recycled. The plastic stirrer can thus be turned into a plastic stirrer again. This will not be possible with the wood stirrer – unless plastic helps to bind the wood particles. This is just one example among many.
If one does not want to switch to ecologically worse materials, the single-use ban of plastics is practically equivalent to product bans. Do we want an eco-dictatorship? A race for bans? One person thinks straws, the other balloon holder or coffee capsules are unnecessary – in the end we will all miss many products. Wouldn’t it make more sense to respect the needs of the people and find the best materials and end-of-life options that have the least environmental impact? In many cases, these are already plastics today – whether PET bottles, shopping bags or packaging that protect food – and all the more this will be the case for future plastics based on renewable carbon, either from mechanical and chemical recycling, biomass or direct CO2 use.
The single-use ban fuels the plastic hysteria, but it’s not plastics we should do without. The aim is to quickly turn plastics into a truly sustainable material solution and set up comprehensive disposal and recycling systems that minimise the risk of plastics entering the environment and causing microparticles. Given the raw material situation, we have no other option. And consumers will learn that more sustainable plastics will be more expensive, but already today almost half of German consumers are willing to spend more money on sustainable products.
SG: And this will succeed?
MC: I’m an optimist. The plastics industry can emerge from the current crisis new and strengthened like the Phoenix from the ashes – if it now does its homework and consistently tackles and solves the problems, and finally understands that they are not communication problems!
In the meantime, the first, long overdue steps have been taken: around 30 leading chemical companies that operate along the value chain worldwide have organized themselves in the “Alliance to End Plastic Waste (AEPW)” and intend to invest around 1.5 billion dollars over the next five years to promote projects for waste management, the circular economy and new recycling technologies.
Manufacturers of consumer products are finally beginning to produce their packaging from 100% recycled material and make it fully recyclable. The targeted collection of plastic waste is also starting with its first projects. In Haiti, for example, the inhabitants collect plastic waste, and this year the amount is expected to reach 300 tonnes. In return, Henkel provides benefits in kind such as charcoal for cooking, vouchers for children attending school and the opportunity to recharge their mobile phones, or simply cash. A good idea to buy collected plastic waste as a raw material. That should set a precedent all over the world.
SG: Thank you for the enlightening conversation.

– Republished with permission from Nova- Institute. All rights reserved

Efficient Energy Utilization in Chemical Industry

Energy particularly fossil fuel is expensive and not readily available.  India has to import over 80% of its energy requirements.  The cost of primary energy (coal, oil & gas) fluctuates in the international market and over the years keeps on increasing, specifically when one accounts for the significant costs to society (-externalities such a public health and environmental damage -) not reflected in the direct cost of the fuel itself.The price of imported coal also follows this trend. It is therefore important that from a given source of primary energy (coal, oil, gas) maximum usable energy be obtained.  This paper focus on how one can improve overall cycle efficiency of a simple Rankin cycle.

Figure 1: Price of Brent crude oil

In order to optimally utilize the primary energy, it is important that as much energy in useful form be converted.  Sometimes in our goals for maximum efficiency, we do not look at other products that may be produced: through a small sacrifice in one form, we may be able to increase the overall cycle efficiency.  For example in power production, when a condensing turbine is used the following efficiencies are obtained.

 

Typical Thermal Power Plant Efficiencies
Type Efficiency Operating Condition
Inlet Condensing end
Sub Critical Thermal plant 33-38% 135-170 ata , 550-570˚C  0.098 ata 45 oC
Super Critical Thermal Plant 42% >220 ata, 600˚C 0.098 ata 45 oC
Ultra Super Critical 45-48% >300ata, 600˚C 0.098 ata 45 oC

How primary energy is utilized in a power plant

We see that the useful energy for a sub critical small (60 – 120 MW) power plant is only 34%, with most losses rejected in the condenser.  Typically a condensing steam turbine would condense steam at around 0.1 ata (45oC) under Indian conditions.  However in-order to utilize this energy lost through condensation we would need another application that operates at close to these conditions.  When we look at a Low Temperature Multi effect Distillation unit, the same operates at a temperature of 72oC or 0.32 ata.  The Gross Operating Ratio (GOR) at this mode of operation is 8, i.e. One ton of steam will produce 8 m3 of desalinated water.  However this means that if MED unit is directly coupled to the turbine, the steam turbine will discharge at a back pressure greater than 0.32 ata.  In another mode of operation if the MED receives steam at say 2 ata then it operates under the Thermo Vapor Compression (TVC) mode the GOR improves to 11.  In this case we may use an extraction at point greater than 2.0 ata.  Now let us consider an extraction turbine with an extraction point at say 3.0 ata (to account for piping losses as MED unit might be placed a bit afar).  A large scale TVC MED unit of say 1042 m3/hr (25 MLD) would require about 95 TPH of steam.

Line diagram for   turbine using back pressure as well as extraction steam.

Evaluation of energy cost of steam generation using extraction steam:

Particulars Value Units
Enthalpy of Steam at 3ata saturated 2724.9 KJ/Kg
Enthalpy of Steam at 0.1 ata saturated 2629.1 KJ/Kg
Energy theoretically available for electricity generation 95.8 KJ/Kg
Energy available in 95 TPH 9,101,000 KJ/Hr
Potential power generation considering 90% turbine isentropic efficiency 2,275 KW
Energy generated in One Hour 2,275 kWh
if energy priced at retail 10 Rs/kWh
Potential Revenue 22,750.00 Rs/hr
Contrast with water generation for 95 TPH steam 3 ata extraction
Water generated 1,042 M3/hr
Steam cost of water generation 21.83 Rs/M3

TVC MED or MED is a robust desalination process and consistently gives high purity water irrespective of sea water input conditions.  A comparative on TVC MED Units versus SWRO units is illustrated by the following table.

Pre Treated Sea Water Parameter Criteria (mg /L) for

SWRO based Desalination

Criteria (mg /L) for

Thermal  (MED/MVC) Desalination

TSS <  0.5 < 15
Oil & Grease <0.1 < 1
Turbidity < 5 SDI at all times < 10 NTU
BOD Non Detect < 10
COD <10 <20
TOC <3
Fe+Mn Non Detect <0.3
Cu, Hg Non Detect ≤0.05
Silica (Total) Non Detect < 10
Other Heavy Metals Non Detect
Total Alkanilty ≤ 120
Bicarbonate ≤ 140
H2S Non Detect < 0.1
TDS Output dependent on inlet TDS 41,000 ppm plus

 

Comparison of other parameters is as follows:

TECHNOLOGY MEMBRANE THERMAL
OPERATING  TEMPERATURE Ambient Low Temp
Process SWRO TVC – MED
Electricity Consmption kWh/m3 4-6 1.0-1.3
Motive Steam Pr. ata N/A 0.5 to 3
Eq, Thermal Energy relative to Elec Cost N/A 40%
Total Equivalent energy Consumption kWh/m3 4-6 3.8-4.5
Product Quality Ppm TDS 400  Ppm (Single Pass)

<10 ppm (Double  Pass)

<10 ppm all conditions
Minimum  Intake requirements Clean water from deep  sea intake Shallow ok
Fully Automatic Operation Possible, but risky Yes
Tolerance to Operator faults No Yes
Tolerance to variation in sea water quality No Yes
Req. for sophisticated pre treatment Yes No
Chemical + Anti scalant consumption High Low
Maintenance Requirements High & unpredictable Low
Cost of Spares as % of Capex ~2% <0.5%
Civil Works Maintenance 0.5% <0.1%
Failure potential if corrosion occurs High Low
Periodic Cleaning 3 months / online 24 months
Skilled Manpower requirements High Low
Annual Availability 92% 98+%
Reliability Medium Very High
Plant Life Expectancy 15 years 30 + years

 

RIL Jamnagar: 230 MLD MED based desalination.

Thus we see that energy cost of generation of desalinated water is minimal, and is much more robust and reliable compared to SWRO systems.  Industry leaders like Reliance Industries are using this system since 1998 and Industries that have access to sea can thus be self reliant for their electricity and water needs.  It may also be noted that Ministry of Environment and Forests now recommends desalinated water for industries that have access to sea, and a proposal for a captive power plant coupled with a desalination unit stands a much better chance of sailing through rather than a captive power plant alone.

About the Authors:

  1. Tehmton Toorkey:

Holds a B. Tech in Chemical Engineering  from IIT Madras @ Chennai, a M.S. in chemical engineering and M B A in finance from University of Akron and has worked with EPA, USA, Tata Power, Hinduja National Power Corporation and is currently with Technochem Agencies (Pvt) Limited as Consultant in the Engineering, Projects & Technical Consultancy Division of Technochem Agencies (Bombay) Pvt Ltd

  1. Sriram Kulkarni: Holds a B. Tech in Chemical Engineering from IIT Kanpur, a M. S. in Chemical Engineering & MBA from State University of New York, Buffalo and is Director of TechnoChem Agencies (Bombay) Pvt Ltd (TCA). TCA is exclusive representative of inter alia IDE-Tech, and ENER-T in India.  Mr. Sriram Kulkarni is also on the executive committee of Indian Desalination Association.  Mr. Sriram Kulkarni has been part of the largest desalination projects executed in India using the advanced desalination technologies in all modes namely TVC-MED, MVC and SWRO projects.
  2. Yehuda Harats: Mechanical Engineer with over 35 years’ experience in the development, construction and operation of utility scale concentrated solar power plants, renewable energy and clean water projects. Founder and Chairman of Ener-t International Ltd.

Acknowledgements:

  1. Energy graph. com
  2. IDE – Tech, Israel MED & SWRO process details
  3. X- steam tables by Magnus Holmgren as per IAPWS IF-97http://www.x-eng.com

Indian Institute of Petroleum & energy (IIPE) – Various Openings

Indian Institute of Petroleum & Energy (IIPE)
2nd Floor, Andhra University College of Engineering (A), Vishakhapatnam, Andhra Pradesh

Career Opportunities
Applications are invited from the deserved candidates for the positions of Registrar, Junior Engineer (Civil), Junior Engineer (Electrical) and Accountant.
For detailed qualifications, experience criteria, etc. Please log on to the site of IIPE www.iipe.ac.in under the Career opportunities column. The last date for receipt of applications is 26th October 2019.

Copper – The Element We can Count on

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From being the first metal to be manipulated by humans to becoming an important metal in the industry today, copper has proved to be one of the most ‘in-demand’ elements. It is the metal that serves mankind with its varied applications – right from making ornaments to weapons and from conducting electricity to proving its worth as anti-bacterial.
In this article, our special correspondent explains that there is more to copper than just being a shiny element !

Copper, the shiny reddish element, was the first metal to be worked upon and crafted by humans. It has played an important role in the history of mankind from around the end of the Stone Age till the present-day Information Age. Today, it is ranked third among the most consumed industrial metals in the world, after iron and aluminium.

When they think of copper, most people would probably visualise coins, kitchen utensils, electrical wiring or even the Statue of Liberty, one of the most famous international landmarks and the biggest copper-clad statue in the world. With hundreds of copper sheets covering its outer surface, the iconic statue was originally a shiny, reddish brown in colour, reflecting the natural colour of copper. Over the years it acquired the blue-green colour we see today. That’s because copper tends to change colour after long periods of exposure. It first reacts with oxygen in the air to form oxides, and then these react with carbon dioxide and sulphur to form copper carbonate, copper sulphide, and copper sulphate. It is these compounds that form the outer, protective blue-green patina that actually preserves the underlying copper from corrosion.

We may not always be aware of it, but we interact with copper in numerous ways every day. In fact, it is one of the elements we depend on the most. From switching on electrical gadgets in our homes and offices and watching TV, to handling coins, cooking our food, or making calls from our mobile phones, during each of these and many other daily activities we use copper. In many countries, like the US and UK, not just electric wires, but almost all the pipes and tubing for potable water too are made from copper.

History down the ages

A key reason for the early discovery and significant use of copper in ancient times was that being slow to react with other substances, the metal occurred naturally in fairly notable amounts in the pure form. Ancient civilisations first used copper to make ornaments, tools, and coins. Many of these objects, some dating to as far back as 8000 BC, have been discovered.

One of the disadvantages of the metal was that it was too soft to be used for making weapons and tools. Then, around 3500 BC, the Mesopotamians discovered that copper when mixed with tin forms a much harder substance—bronze. This technological advance led to the end of the Copper or Chalcolithic Age and the beginning of the Bronze Age. The new alloy was not only harder but could also be forged and shaped through hammering or melted and poured into hollow moulds to prepare castings of different shapes.

The Romans used copper and bronze for making plumbing tubings and fittings, armours, helmets, weapons like swords and spears, ornaments, decorative items, and parts of musical instruments. The Egyptians used copper for making water pipes around the same time as the Romans. They also used copper and bronze for making mirrors, razors, adornments and weights and balances. Coins made out of copper were used by the Romans, Greeks, Chinese and other civilisations.

Brass, an alloy of copper and zinc, was discovered around 1400 BC, but its use was limited. The Romans used it for making coins and golden coloured helmets and ornaments. Brass began to be used extensively from around the 18th century after a method for extracting pure zinc was found.

Properties

The chemical symbol for copper, Cu, was derived from the Latin name for the metal—cuprum—which itself originated from the Latin phrase Cyprium aes, meaning ‘metal from Cyprus’. Ancient Romans got most of their supply of copper from Cyprus.

An interesting feature about copper is that apart from gold, it is the only metal that doesn’t have a natural silverish or grey colour, but a shiny, reddish hue.

Being ductile, it can be stretched into wires and can be easily machined, fabricated or cast into any desired shape. Only silver has higher thermal and electrical conductivity than copper. But given how costly silver is, for all practical purposes, copper is the most cost-effective electrical conductor in the periodical table.

Though somewhat unreactive, copper can form alloys that are harder than itself or the metals it combines with. When it combines chemically with the atoms of other elements, it forms various industrially useful compounds that are either cuprous (copper I: copper ions having a charge of +1) or cupric (copper II: copper ions having a charge of +2), the cupric compounds being generally more stable.

Civilisation’s most practical metal

Copper has proved to be an exceptionally useful metal throughout history. One of the reasons for its continued and widespread use is that it can be recycled economically and indefinitely, that too without losing any of its physical or chemical properties.

The main uses of copper are in building construction and the manufacture of electrical and electronic equipment. Around three-fourths of the copper produced is used for power transmission and generation, building wiring, electrical and electronic products, and telecommunications. Copper is also used for making copper-bottom cooking utensils since it heats uniformly.

Till today, many countries, like the UK, US, and even India, use copper and its alloys for coinage. In the new Indian ten-rupee coins, copper is the main metal. Similarly, the 10, 20, and 50 Euro coins are 89% copper. Till around three decades ago, the one-cent American coins were 98% copper. At present, they are made out of copper-plated pure zinc.

Incidentally, till some decades ago, the buttons and badges on the uniforms of police officers in the US and UK were made from copper. While according to a popular myth, this was the origin of the slang term for policemen—’coppers’, later shortened to ‘cops’—language experts say the nickname probably came from the old English word ‘cop’ which meant ‘to capture’.
In modern times, copper is playing a key role in electric and hybrid vehicles. According to some experts in this field, the copper content of future vehicles could be triple that of today’s content.

Copper’s anti-microbial properties have further broadened its use. It was once used to coat the bottoms of ships because of its property of inhibiting the growth of bacteria, barnacles, and other life forms. Today, it is woven into fabrics used for making anti-microbial products such as socks for fighting foot fungus, and is also used in the medical field. For instance,hospitals are using it to cover frequently-touched surfaces such as door handles, bed rails, and call buttons to check the spread of hospital-acquired infections.

Copper alloys too have multiple uses in the electrical field and for making industrial machinery.
Some decades ago, copper bracelets were being popularised as cures for arthritis. In 2013, a controlled, double-blind scientific study in the UK concluded that these had no meaningful therapeutic effects.

The two most industrially important copper compounds are: 1) Cupric sulphate (CuSO4) used mainly for agricultural purposes as a pesticide, germicide, feed additive, and soil additive, and in medicine as a fungicide, bactericide, and astringent; and 2) Cupric chloride (CuCl2) used as a wood preservative, mordant in the printing and dyeing industries, pigment for glass and ceramics, and as a disinfectant.

Currently, scientists are researching the use of copper for producing futuristic electronic paper, wearable biosensors, and other ‘soft’ electronics.

Essential micronutrient

Copper, which is present in every tissue of our body, helps it to utilise iron properly, helps the thyroid gland to function normally, keeps bones healthy, preserves the myelin sheath protecting our nerves, and is crucial for catalysing the formation of haemoglobin. Being a vital micronutrient, we need to include it in our diet.

Foods like beans, grains, potatoes, leafy vegetables, and asparagus are good sources of copper.

2019 – Will King Copper continue to reign supreme?

Since the last few decades, the demand for copper has been rapidly increasing due to many developing countries, especially China and India, getting more industrialised. The rising demand has led to the price of copper increasing four-fold in recent times, and predictions of ‘King Copper’ strengthening its in-demand position even further this year.

In the meanwhile, the applications of copper keep growing as new aspects of its usefulness in industries varying from pharmaceuticals to electronics keep on being discovered.

References

  1. Stephanie Pappas: Facts About Copper – LiveScience, 12 September, 2018, https://www.livescience.com/29377-copper.html
  2. Chris Woodford: Copper – ExplainThatStuff.com, 4 September, 2019, https://www.explainthatstuff.com/copper.html
  3. C. Claiborne Ray: A Scientific Lens on Copper – The New York Times, 23 January, 2017, https://www.nytimes.com/2017/01/23/science/copper-bracelets-arthritis.html
  4. Jean-Marc Böhlen: Copper Compendium, Part 2: Copper is Key in the Modern Age – Accelerating Science, 14 July, 2015, https://www.thermofisher.com/blog/metals/copper-compendium-part-2-copper-is-key-in-the-modern-age/
  5. Accelerating Science: 8 Fun Facts About Copper – ThermoFisher.com, https://www.thermofisher.com/content/dam/tfs/ATG/CAD/CAD%20Marketing%20Material/CAD%20Marketing%20Images/Infographics/Infographic-Copper.pdf
  6. Vin Calcutt: Introduction to Copper: Applications – Innovations, August 2001, https://www.copper.org/publications/newsletters/innovations/2001/08/intro_to_copper.html
  7. Terence Bell: The Ancient History of Copper – TheBalance.com, 30 December, 2018, https://www.thebalance.com/copper-history-pt-i-2340112
  8. Steve Mylon: Copper – Chemistry World, 30 December, 2009, https://www.chemistryworld.com/podcasts/copper/3005744.article
  9. Frank Holmes: Will 2019 Be The Year Of King Copper? – Forbes.com, 19 February, 2019, https://www.forbes.com/sites/greatspeculations/2019/02/19/will-2019-be-the-year-of-king-copper/#3930821e2ba3

Chemical Industry Digest – September 2019

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Articles covered in this issue:

What is the Future of Plastics?
Interview with Michael Carus, Managing Director of Nova Institute
Plastics is under attack worldwide due to the mammoth problem it has created in the accumulating plastic wastes in our ecosystems. The problems are due to its non- biodegradability as well as its irresponsible disposal by human beings. However, in this interview, Michael, a leading advocate of bio-based economy says that plastics are versatile materials and they can be made environment friendly.

The Fourth Wave in Chemical Industry
– R R Sonde, Thermax Ltd.
Like in the evolution of human civilisation, the growth of chemical industry to what it is today has been through various game changing technological developments that created major shifts in its manufacturing, termed as waves. These are the honing of unit operations and the development of outstanding process chemistries, process intensification and now the fourth wave of Pinch Analysis & Resource Optimisation. These are explained in the article with elaboration on how alternate sources of energy can integrate into chemicals manufacturing.

Innovations in Steam Systems in Process Plants
– Datta Kuvalekar, Forbes Marshall
Steam forms an essential part of the energy portfolio in any process plant and is critical to plant energy costs. Therefore, ensuring that steam losses are zero is the important objective of steam management. In this article, the author explains innovative measures in steam management in process plants.

Pinch Analysis in Oil and Gas Sector
– Dr Anjan Ray, Dr Sunil Kumar, CSIR-IIP
Enhancing energy efficiency by optimizing energy utilization in processes and systems in manufacturing companies is crucially important to reduce energy costs and remain competitive. Pinch Analysis is an important tool to improve energy efficiency of industrial processes. This systematic procedure is elaborated with applications and case studies in the oil and gas sector.

Energy Audit and Benchmarking for Energy Saving in the Process and Equipment Operation
– Bharat Yadav, Tata Consulting Engineers
As energy costs soar, efficient utilisation of energy in a chemical plant is of paramount importance to remain competitive. Energy audit is a very scientific method of assessing
the energy consumption in existing energy systems in a chemical plant and identifying the potential for conserving energy & improving energy efficiency. This article explains the procedure in detail.

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Asansol Engineering College – Various Openings

Asansol Engineering College (AEC), a premier Engineering College situated at Asansol, West Bengal is looking for dynamic professionals for the following positions:
Professor, Associate Professor in  EE, ECE, CSE, IT, MECH, Civil
Qualification and Experience: As per AICTE norms
Please send  your applications with CV, Scanned Photograph, Pan Card, Adhaar Card & all Testimonials at
Email: recruitmentaec@gmail.com
Last date of submission of the application:
10 days from date of advertisement to the Director, Asansol Engineering Collage

Corporate Head office:
Chatterjee International Centre, 18th floor, Flat No. &, JJ.L. Nehru Rd, Kolkata-700071

Indian Institute of Technology Ropar- Various Opening

Indian Institute of Technology Ropar invites applications from qualified candidates for the faculty positions in the specific areas of specializations in the departments of Chemistry, Civil Engineering, Chemical engineering, Computer Science & Engineering, Department of metallurgical and materials engineering, Electrical engineering, Humanities & Social Sciences, Mathematics, Mechanical Engineering, and Physics.

For details regarding educational qualification, experience areas of specialization, and other details, please visit the institute website
http://www.iitrpr.ac.in/jobs/faculty-positions.
The last date for submission of online applications is 4.10.2019.
Note: Candidates who have applied against the advertisement No. IITRPR/FACRECT/140/2019 should not apply again as their applications will be considered.

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