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New oxocatalyst demonstrated for vinyl chloride monomer production

Recently, Tosoh Corp. (Tokyo, Japan; www.tosoh.com) has applied a new, proprietary oxocatalyst in the oxychlorination process for making ethylene dichloride (EDC) from ethylene, HCl, and O2 in its vinyl chloride monomer (VCM) manufacturing process. The performance boost anticipated from simulation…

Commercial debut for an upgrading process

After four years of project development and execution, the new PolyFuel unit at Petrobrazi petroleum refinery in Romania has been started-up and is fully functional since April 2019. Based on the PolyFuel technology licensed by Axens (Rueil-Malmaison, France; www.axens.net), the…

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A less expensive way to make graphene

A team from RMIT University (Melbourne, Australia; www.rmit.edu.au) and the National Institute of Technology, Warangal (Warangal, India; www.nitw.ac.in) has developed a cost-effective and eco-friendly way of producing graphene using a eucalyptus polyphenol solution extracted from eucalyptus bark. RMIT’s professor Suresh…

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Chementator Briefs

Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what is claimed to be the world’s highest-level nanofiltration membrane. The new membrane triples the permeation performance of conventional models while enhancing ion and organic-compound separation from aqueous solutions. In developing…

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Stabilized, purified silk protein serves as green chemistry platform

Scientists have long sought ways to take advantage of the high strength of natural silk protein in new materials, but its incorporation has been hindered by the inability to stabilize the protein in water. Now, a company known as Evolved…

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Poly-diketoenamines could allow closed-loop plastics recycling

Conventional plastics are difficult to recycle because end-of-life processing generally is either energy-intensive or alters the physical properties of the materials. A team of researchers from the Lawrence Berkeley National Laboratory (Berkeley, Calif.; www.lbl.gov) and the University of California at…

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MOFs that mimic leaves for enhanced performance

Chemists from the research group of Stefania Grecea at the University of Amsterdam’s (UvA; the Netherlands; www.uva.nl) Research Priority Sustainable Chemistry have devised a way to enhance the practical performance of metal-organic frameworks (MOFs). By using leaves from the black…

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Thermal insulation mimics polar-bear hair

Scientists from the University of Science and Technology of China (Hefei; https://en.ustc.edu.cn), led by professor Shu-Hong Yu, have developed a thermal insulator that mimics the structure of individual polar-bear hairs, and have scaled toward a material made of many hairs.…

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A solvent-extraction approach for desalination of high-salinity brines

Hypersaline industrial wastewater brines are difficult to treat. Current approaches for removing salt from such brines — such as evaporative distillation and reverse-osmosis (RO) — are problematic because evaporation is highly energy-intensive and RO cannot handle salt levels present in…

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A powerful tool to analyze MOFs

An international team, including staff from the Korea Advanced Institute of Science and Technology (Kaist; Daejeon, South Korea; www.kaist.ac.kr), led by Kaist’s professor Jeung Ku Kang, has developed a technology to analyze the gas adsorption behavior of molecules of each…