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A low-cost way to make propylene oxide without chlorine or wastewater

Chemetry Corp. (Moss Landing, Calif.; www.chemetrycorp.com) is piloting a hybrid electrochemical-catalysis process for making propylene oxide (PO) that eliminates some of the major production hurdles associated with chlorohydrin-based PO production. “The traditional chlorohydrin process produces about 47 tons of wastewater…

An efficient electrochemical route to triphenylphosphine — without the waste

A new electrochemical process could make triphenylphosphine (TPP) — an important reagent in many organic transformations — more practical for industrial use. Synthesizing TPP results in large volumes of waste in the form of triphenylphosphine oxide (TPPO), which is very…

Piloting a new sewage-treatment process to tackle emerging contaminants

As new types of water contaminants continue to emerge, such as retinoids and endocrine-disrupting chemicals, wastewater-treatment techniques are evolving to economically handle them. One new process that has shown promise against both conventional and emerging water pollutants integrates two technologies…

First industrial-scale plant uses CO2-lean cement production

By replacing part of cement clinker with calcined (thermally activated) clay, CO2 emissions in cement production are lowered by up to 40%, according to thyssenkrupp Industrial Solutions AG (Essen, Germany; www.thyssenkrupp-industrial-solutions.com), which developed the technology known as “polysius activated clay.”…

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Ion-exchange beads for lithium extraction

With lithium demand higher than ever, processors are increasingly turning toward emerging technologies and new resources for lithium extraction. A new California-based project launched by Controlled Thermal Resources (CTR; Imperial, Calif.; www.cthermal.com) and Lilac Solutions (Oakland, Calif.; www.lilacsolutions.com) aims to…

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‘Artificial photosynthesis’ system design overcomes problem of fast proton flow

Artificial photosynthesis systems seek to harvest sunlight and carbon dioxide to make fuels. Among the many challenges for making solar fuels has been achieving a fast flow of protons from where they are generated to where they combine with CO2…

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New catalyst selectively promotes hydrodeoxygenation reaction

Scientists at Brookhaven National Laboratory (BNL; Upton, N.Y.; www.bnl.gov) and the University of Delaware (Newark; www.udel.edu) have designed a catalyst capable of selectively removing oxygen atoms from the side chain of an aromatic compound without affecting the ring. The team…

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Conversion of plastic packaging to BTX and olefins is demonstrated

Anellotech (Pearl River, N.Y.; www.anellotech.com) recently announced a successful laboratory demonstration of a process to convert mixed plastic waste into a host of useful starting materials for new plastics. The process (diagram), known as Plas-T-Cat, would take place in a…

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Progress towards lithium-sulfur batteries

An international team, led by Mahdokht Shaibani from Monash University (Melbourne, Australia; www.monash.edu), has developed an ultra-high capacity lithium-sulfur battery with better performance and lower environmental impact than current Li-ion batteries. The team includes people from Monash University, University of…

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Batteryless machine-health monitor enabled by low-power computer chips

Everactive (Charlottesville, Va.; www.everactive.com) has just launched its Machine Health Monitor (MHM) product for batteryless vibration and temperature sensing of process machinery (photo). The MHM harvests waste energy from small temperature differentials (10°F or greater) and ambient light (100 lux…