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Applying capacitive deionization for critical-metals recovery

Researchers at Argonne National Laboratory (Lemont, Ill.; www.anl.gov) are investigating an electrochemical separation process known as capacitive deionization (CDI; diagram) to extract and recover ions from liquid streams in wide-ranging applications, including battery recycling and biomanufacturing. CDI holds several advantages…

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Reduced fouling when pneumatically conveying lactose products

To ensure product safety and quality, products containing lactose (at dairy plants, for example) are processed under hygienic conditions. These strict hygiene conditions require frequent cleaning of pneumatic transport systems — typically every eight weeks. This procedure is both labor-intensive…

Capillary-fed electrolysis unlocks new levels of efficiency for green-hydrogen production

A new category of electrolysis could significantly lower the expenses associated with producing “green” hydrogen. In the new capillary-fed electrolyzer cell — designed by Hysata (Wollongong, Australia; www.hysata.com) based on research from the University of Wollongong (www.uow.edu.au) — water is…

Selective separation of individual rare-earth elements using DGA-based ligands

Utilizing rare-earth elements (REEs), such as for permanent magnets in renewable energy applications, requires costly chemical separations that generate large volumes of waste. A process featuring new diglycolamide (DGA)-based ligands and liquid-liquid extraction exhibits more effective separation of individual REEs,…

Pilot plant to produce ‘greener’ acrylonitrile at cost parity for carbon fiber

A pilot facility currently under construction in Charleston, W.Va. will produce renewable acrylonitrile (ACN) without requiring the traditional petroleum-based propylene as feedstock. Since ACN is the raw material used to make carbon fibers, the new route to ACN allows the…

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Pilot plant for graphene production uses flash Joule heating

A pilot plant is scheduled to be completed later this year for the production of graphene using a technology known as flash Joule heating (FJH). Developed in the laboratory of James Tour at Rice University (Houston; www.rice.edu), FJH involves forcing…

Making ‘green’ methanol from steel-mill gases

A process that produces methanol from the gases generated at a steel mill will soon be field tested. The process has been under development for the last five years by researchers at the Fraunhofer Institute for Environmental, Safety and Energy…

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Chementator briefs

Enzymes in a Cage Researchers at the Karlsruhe Institute of Technology (KIT; Germany; www.kit.edu) have embedded enzymes into metal-organic frameworks (MOFs), and demonstrated for the first time that stabilization by these frameworks is sufficient for use of the enzymes in…

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Phosphine-based ligand now available on the kilogram scale

Sinocompound Catalysts Co., Ltd. (Zhangjiagang, China; en.sinocompound.com) says it is now producing the phosphine-based QPhos ligand in kilogram quantities for commercial use. With this ligand now accessible on a large scale, scientists across the globe can incorporate QPhos-based catalysts into…

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A simpler way to recover purified graphite from spent batteries

A new recycling process claims to significantly reduce the complexity of recovering graphite from spent lithium-ion battery (LIB) materials by leaching out impurities rather than leaching out metal. By extracting impurities and recovering high-grade graphite, the Hydro-to-Anode technology, developed by…