Chementator
A colorful new way to visualize gaseous properties
Japan’s National Institute for Materials Science (NIMS; Ibaraki, Japan; www.nims.go.jp), along with Harvard University (Cambridge, Mass.; www.harvard.edu) and the University of Connecticut (Storrs, Conn.; www.uconn.edu), have designed a new imaging device that uses structural colors — visible colors that change…
Chementator briefs
Magnet Metals Bilfinger SE (Mannheim, Germany; www.bilfinger.com) is supporting REEtec AS (Oslo, Norway; www.reetec.no) with engineering, procurement, construction and management (EPCM) services for a new processing plant for neodymium and praseodymium — two rare earth elements (REE) used in the…
Scaleup for an ethanol-to-ethylene process
Last May, Axens (Rueil-Malmaison, France; www.axens.net) started up the first ethanol-to-ethylene pilot plant based on Axen’s Atol technology with Sumitomo Chemical Co., Ltd. (Tokyo, Japan; www.sumitomo-chem.co.jp). The pilot plant, located at Sumitomo Chemical’s Chiba Works, will produce ethylene from ethanol.…
A step closer to bio-based secondary diols in polyester synthesis
Isosorbide is a glucose-derived, rigid, secondary diol monomer that can impart favorable mechanical, barrier and thermal properties to condensation polymers, such as polyesters. However, for the past two decades, it has not been possible to synthesize fully bio-based poly (isosorbide…
Ultralight fabric solar cells turn any surface into a power source
Developed by researchers at the Massachusetts Institute of Technology (MIT; Cambridge, Mass.; www.mit.edu), these durable, flexible solar cells are glued to a strong, lightweight fabric, making them easy to install on a fixed surface. They are one-hundredth the weight of…
Chementator Briefs [January 2023]
BTX extraction A newly launched series of blended solvents for the extraction of benzene, toluene and xylenes (BTX) from a variety of feeds shows improved performance over single solvents, while avoiding environmentally problematic solvent components. The series, known as BTX…
Hydrogen-enabled recovery of raw materials from ‘red mud’ and other metallurgical waste
Bauxite residue (red mud) is a byproduct from the smelting of aluminum. Like other waste slags from the metallurgy industry, bauxite residue is traditionally put into hazardous-waste landfills, although it contains a mixture of valuable raw materials in low concentrations.…
Solvent-based regeneration of granular activated carbon
Granular activated carbon (GAC) can be used to remove polyfluoroalkyl substances (PFAS) from groundwater and drinking water, but current methods to regenerate spent GAC are costly and require high temperatures of greater than 1,000°C. A team of scientists at Battelle…
Wireless device detects coronavirus — no batteries required
A collaborative research group in Japan has engineered a self-sustaining device that can detect the presence of COVID-19 particles or droplets in air. The device, which requires no batteries, employs a magnetostrictive clad plate composed of iron, cobalt and nickel,…
New pressure-relief valves improve performance and reduce emissions
Spring-loaded pressure-relief valves (PRVs) often use bellows to ensure balanced operation. Data analysis from 30,000 PRV service records across different industries and valve brands shows a bellows failure rate between 2 to 6%, according to Emerson (St. Louis, Mo.; www.emerson.com).…