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Latest News: Technologies

PFAS separation-concentration system introduced in North America

A technology initially developed in Australia by OPEC Systems (Emu Plains, NSW, Australia; www.opecsystems.com) for separating and concentrating per- and polyfluoroalkyl substances (PFAS) in a range of water applications has now been introduced in North America. The technology, known as…

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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…

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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…

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Mixed-salt processes target lower-cost CO2 capture

A mixed-salt process (MSP) designed to reduce the costs and increase the energy efficiency of removing carbon dioxide from post-combustion fluegas is advancing in two related projects. In the first, a 10-MW engineering-scale demonstration plant for the MSP is under…

Recycling polyesters, polycarbonates and more — at room temperature

A new catalytic recycling method that avoids harsh processing conditions could widely expand the recyclability of a broad range of plastics, including polycarbonates, polyesters and mixed-waste feeds. Researchers from the Center for Sustainable and Circular Technologies (CSCT; www.ccst.ac.uk) at the…

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…