The conventional way to dye textiles is by the so-called dip process, whereby cloth is first immersed into a vat of the dying medium, then removed and dried. The dye is then thermally fixed to the textile by heating to…
Toshishige M. Suzuki and his colleagues at the Tohoku Center of National Institute of Advanced Industrial Science & Technology (AIST; Sendai, Japan; edlinks.chemengonline.com/5827-538) has developed a new analytical test strip that can quickly detect parts-per-billion (ppb) concentrations of heavy metal…
Simulations of chemical processes that involve many reactants with continually changing compositions can be set up and run in minutes, rather than the previously required hours, with a newly commercialized software package, Reaction Engineering Lab, says developer Comsol (Stockholm, Sweden,…
The presence of arsenic minerals, such as enargite and tennantite, in some copper-bearing ore bodies, can be a problem for those wishing to recover the copper. When delivering copper concentrates to smelters in Australia, for example, miners are subjected to…
Kokusan Co. (Tokyo; edlinks.chemengonline.com/5827-531) has developed a new type of emulsifier that uses centrifugal force to drive mixtures through specially designed nozzles. The system is said to be less complex than conventional high-shear mixing devices, and operates at much lower…
A gas-liquid nozzle that reduces the size of the gas bubbles blown into a liquid — thus increasing the rate at which the gas is absorbed into the liquid — has been developed by a research team led by Jie…
Haldor Topsøe (Lyngby, Denmark; edlinks.chemengonline.com/5826-533) has introduced two new hydroprocessing catalysts, which are based on its proprietary BRIM technology. Both catalysts are nickel-molybdenum types that optimize both hydrogenation at so-called brim sites (situated on the basal-plane of the catalyst) and…
Lanxess Deutschland GmbH (Leverkusen, Germany; edlinks.chemengonline.com/5826-548) has commissioned a parallel reactor for the screening of catalysts use in hazardous reactions, such as phosgenation and chlorination, which are commonly used to make fine chemicals. Up to now, existing automated screening devices…
Last month, British Nuclear Fuels Plc. (BNFL; Daresbury, U.K.; edlinks.chemengonline.com/5826-554) announced plans to sell Westinghouse Electric Co. (Pittsburgh, Pa.) to Toshiba Corp. (Tokyo; edlinks.chemengonline.com/5826-555), the highest bidder, says BNFL. Others vieing for the U.S. nuclear-power-plant arm of BNFL included GE…
Scientists at the Lawrence Livermore National Laboratory (Calif.; edlinks.chemengonline.com/5826-549), Boston College (edlinks.chemengonline.com/5826-550) and MIT (both Mass.; edlinks.chemengonline.com/5826-551) have discovered that by heating a single-walled nanotube of carbon to 3,600°F, its strength is increased by 280%. The discovery is expected to…