HAZCHEM Alert: assessing health risks to your workers

WALTER INGLES | January 17, 2019 | 105 views

Trying to identify and assess how hazardous chemicals could impact the health of your workers can initially seem daunting, so we’ve put together a three-step method to get you started. This blog will help you prepare a chemical hazard profile to determine the potential exposure of your workers to hazardous substances. Use it as the base of a chemical risk assessment and a tool for flagging individual workgroups (or work areas) for chemical exposure testing and control measures.

Spotlight

Chemoxy International Ltd

Chemoxy International Ltd is one of Europe’s largest independent contract manufacturers, combining the speed and agility of a small/medium sized company with the health and safety and environmental performance of the best major chemical corporations. Our Middlesbrough site has carried out distillation since 1868 and our Billingham site was added to the portfolio in 1994, with a major expansion was completed in 2014.

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CHEMICAL MANAGEMENT

Organic Catalyst Boasts Big Benefits

Article | July 22, 2021

An enzyme-mimicking catalyst opens a new route to important organic molecules such as glycolic acid and amino acids from pyruvate, report researchers in Japan. Moreover, the new catalyst is cheaper, more stable, safer and more environmentally friendly than conventional metal catalysts used in industry, they note, adding that it also displays the high enantioselectivity required by the pharmaceutical industry. “On top of these advantages, our newly developed organic catalyst system also promotes reactions using pyruvate that aren’t easily achievable using metal catalysts,” says Santanu Mondal, a PhD candidate in the chemistry and chemical bioengineering unit at Okinawa Institute of Science and Technology (OIST) Graduate University, Okinawa, Japan, and lead author of a study recently published in Organic Letters. “Organic catalysts, in particular, are set to revolutionize the industry and make chemistry more sustainable,” he stresses. The researchers use an acid and an amine mixture to force the pyruvate to act as an electron donor rather than its usual role as an electron receiver (Figure 1). Effectively mimicking how enzymes work, the amine binds to the pyruvate to make an intermediate molecule. The organic acid then covers up part of the intermediate molecule while leaving another part that can donate electrons free to react to form a new product. Currently, the organic catalyst system only works when reacting pyruvate with a specific class of organic molecule called cyclic imines. So, the researchers now are looking to develop a more-universal catalyst, i.e., one that can speed up reactions between pyruvate and a broad range of organic molecules. The challenge here is to try to make the electron-donating intermediate stage of pyruvate react with other functional groups such as aldehydes and ketones. However, different catalysts create different intermediates, all with different properties. For example, the enamine intermediate created by the researchers’ new reaction only reacts with cyclic imines. Their hypothesis, currently being investigated, is that creation of other intermediates such as an enolate, if possible, would achieve a broader pyruvate reactivity. In terms of cost, the researchers note that a palladium catalyst used in similar reactions is 25 times more expensive than their organic acid — which also is made from eco-friendly quinine. In addition, they believe scale-up of the process for industrial use definitely is possible. However, the researchers caution that the current amine-to-acid-catalyst loading ratio of 1:2 probably would need to be optimized for better results at a larger scale.

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CHEMICAL MANAGEMENT

Transporting biological and chemical materials - what you need to know

Article | June 29, 2021

The landscape of biological and chemical logistics has changed rapidly - as have the regulatory frameworks around it. What has not necessarily kept pace is the end-user understanding of the nature of these logistical processes, their opportunities and their constraints. Twenty years ago, the transmission of biological and chemical materials was limited to a small range of organisations: usually national and international research companies, hospitals, major university departments, police and military departments with forensic responsibilities.

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CHEMICAL TECHNOLOGY

Setting record straight on testing harm in chemicals

Article | June 6, 2022

The modern world is built on chemicals, be it the medicines we use, or cleaning fluids, crop protection products, or the raw materials for everything from laptops and mobile phones to clothes and furniture. Across all, we have created an entire modern society with chemicals, and, as a result, constantly stretched the size of the world population we can feed, clothe and shelter. Yet, balancing all the gains from the modern chemistry around us against any negative environmental and human impact has been a rising concern, making for ever greater focus on testing and on risk assessment.

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Why chemical characterization is the best way to assess patient risk

Article | February 11, 2020

Everyone is very familiar with the phrase when buying a house: All that really matters are three things - location, location, and location. This same principle applies to extractables and leachables chemistry analysis – the three things that truly matter are identification, identification, and identification. The greatest growth in the past ten years in demonstrating the safety of medical devices and container closure systems for drugs has been using analytical chemistry to determine what chemicals can leach from the device and what the patient is exposed to during its intended use.

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Spotlight

Chemoxy International Ltd

Chemoxy International Ltd is one of Europe’s largest independent contract manufacturers, combining the speed and agility of a small/medium sized company with the health and safety and environmental performance of the best major chemical corporations. Our Middlesbrough site has carried out distillation since 1868 and our Billingham site was added to the portfolio in 1994, with a major expansion was completed in 2014.

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KEMIRA FORMS NEW JOINT VENTURE IN SOUTH KOREA

chemeng online | January 14, 2019

Kemira Oyj (Helsinki, Finland; www.kemira.com) has signed an agreement to establish a joint venture (JV) – Kemira Yongsan Chemicals Co. —in Ulsan, Republic of Korea, with Yongsan Chemicals, a privately-owned chemicals company in South Korea. Forming a joint venture in South Korea is an important step in expanding Kemira’s presence in Asia Pacific and driving profitable growth in the region. The new joint venture will produce dry polyacrylamide (DPAM), cationic monomer Q9 (AMD) and other chemicals, which are used for retention and drainage in packaging and paper production, as well as in wastewater treatment and in sludge dewatering. With the JV’s production site, Kemira will provide customers premium quality DPAMs supported by backward integrated high-quality AMDs. This ensures a sustainable and cost-effective manufacturing capability, effectively fulfilling customer needs and requirements. It is also an important addition to balance the increasing demand for Kemira’s dry polymers globally.

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Chemical Engineers Develop ‘Greener’ Ammonia

LABORATORY EQUIPMENT | January 14, 2019

Ammonia, a compound first synthesized about a century ago, has dozens of modern uses and has become essential in making the fertilizer that now sustains most of our global food production. But while we've been producing ammonia at a large scale since the 1930s, it has been accomplished mainly in hulking chemical plants requiring vast amounts of hydrogen gas from fossil fuels—making ammonia among the most energy-intensive among all large-volume chemicals. A pair of researchers at Case Western Reserve University—one an expert in electro-chemical synthesis, the other in applications of plasmas—are working on fixing that. Researchers Julie Renner and Mohan Sankaran have come up with a new way to create ammonia from nitrogen and water at low temperature and low pressure. They've done it successfully in a laboratory without using hydrogen or the solid metal catalyst necessary in traditional processes.

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Aemetis expands capacity of Indian glycerin plant

Chemicals Technology | January 14, 2019

Aemetis’ Universal Biofuels subsidiary has completed a two-year upgrade of its biodiesel and glycerin plant in Kakinada, India. The work included installation of a pre-treatment unit to process low-cost and low-waste feedstock into oil, as well as the expansion of a boiler and other utility capacities. The company also implemented environmental systems to enable the production of 50 million gallons of biodiesel and bio-oil annually, while simultaneously operating the biodiesel, pre-treatment and glycerin refining units. At full capacity, the plant is expected to be able to refine approximately five million gallons of glycerin per year.

Read More

KEMIRA FORMS NEW JOINT VENTURE IN SOUTH KOREA

chemeng online | January 14, 2019

Kemira Oyj (Helsinki, Finland; www.kemira.com) has signed an agreement to establish a joint venture (JV) – Kemira Yongsan Chemicals Co. —in Ulsan, Republic of Korea, with Yongsan Chemicals, a privately-owned chemicals company in South Korea. Forming a joint venture in South Korea is an important step in expanding Kemira’s presence in Asia Pacific and driving profitable growth in the region. The new joint venture will produce dry polyacrylamide (DPAM), cationic monomer Q9 (AMD) and other chemicals, which are used for retention and drainage in packaging and paper production, as well as in wastewater treatment and in sludge dewatering. With the JV’s production site, Kemira will provide customers premium quality DPAMs supported by backward integrated high-quality AMDs. This ensures a sustainable and cost-effective manufacturing capability, effectively fulfilling customer needs and requirements. It is also an important addition to balance the increasing demand for Kemira’s dry polymers globally.

Read More

Chemical Engineers Develop ‘Greener’ Ammonia

LABORATORY EQUIPMENT | January 14, 2019

Ammonia, a compound first synthesized about a century ago, has dozens of modern uses and has become essential in making the fertilizer that now sustains most of our global food production. But while we've been producing ammonia at a large scale since the 1930s, it has been accomplished mainly in hulking chemical plants requiring vast amounts of hydrogen gas from fossil fuels—making ammonia among the most energy-intensive among all large-volume chemicals. A pair of researchers at Case Western Reserve University—one an expert in electro-chemical synthesis, the other in applications of plasmas—are working on fixing that. Researchers Julie Renner and Mohan Sankaran have come up with a new way to create ammonia from nitrogen and water at low temperature and low pressure. They've done it successfully in a laboratory without using hydrogen or the solid metal catalyst necessary in traditional processes.

Read More

Aemetis expands capacity of Indian glycerin plant

Chemicals Technology | January 14, 2019

Aemetis’ Universal Biofuels subsidiary has completed a two-year upgrade of its biodiesel and glycerin plant in Kakinada, India. The work included installation of a pre-treatment unit to process low-cost and low-waste feedstock into oil, as well as the expansion of a boiler and other utility capacities. The company also implemented environmental systems to enable the production of 50 million gallons of biodiesel and bio-oil annually, while simultaneously operating the biodiesel, pre-treatment and glycerin refining units. At full capacity, the plant is expected to be able to refine approximately five million gallons of glycerin per year.

Read More

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