Consider these points when selecting and specifying equipment that separates material according to particle size Screening is an integral part of many dry material processes, ensuring an end product that is free of fine or oversized material, or in some…
New crystallization-system designs rely on previous successful installations and rules for scaling-up systems to adapt to slightly different conditions. However, guidelines or rules of thumb have underlying assumptions that might have been ignored when scaling-up a system during…
MPI Technologies AB (Lund, Sweden; edlinks.chemengonline.com/6518-545) is expanding its production capabilities for making molecularly imprinted polymers (MIPs) so that batch quantities of 3–5 kg/wk will be possible. MIPs are stable polymers in which artificial receptor sites have been created to…
Researchers from the Center for Synthesis and Chemical Biology (CSCB; Dublin; edlinks.chemengonline.com/6518-551) have developed an ultrathin, nanoporous membrane that can separate carbon dioxide from nitrogen at 600°C; up to now, no membranes have been available to separate CO2 at temperatures…
GE Healthcare (Chalfont St. Giles, U.K.; edlinks.chemengonline.com/6518-554) and BAC B.V. (Naarden, Netherlands; edlinks.chemengonline.com/6518-555) are collaborating to develop new affinity-ligand and chromatography media for human antibodies and adeno-associated virus (AAV) viral vector purification. The first products are expected to be commercially…
It is well known that palladium membranes are ideal for purifying hydrogen because they allow only H2 to pass through (via diffusion of H atoms) while blocking all other molecules. Because contaminants cannot pass through this pore-free "filter", Pd membrane…
Process small batches with this fluid-bed dryer The Circular Vibratory Fluid Bed Processing System (photo) dries small batches of bulk-solid materials at high temperatures. The self-contained system integrates an 18-in.-dia. fluid-bed processor with heater, blower, cyclone separator and…
Researchers at the Fraunhofer Institute for Environmental, Safety and Energy Technology (Umsicht; Oberhausen, Germany; edlinks.chemengonline.com/6516-533) are developing a new type of filter medium that can be manufactured with pores of precisely the same size (photo). The filter is made of…
Manufacturing soda ash by either the Solvay or Hou process produces a large amount of waste sludge. About 10 m3 of waste — mostly liquid with 2–8 wt.% solids — is generated per ton of soda ash produced, says Trevor…
(Wilmington, Del.; edlinks.chemengonline.com/6516-544) launched a new temperature-controlled evaporation source for depositing sensitive materials used for producing organic light-emitting diodes (OLEDs) and organic-chemical-based solar cells. The source enables greater control of deposition rate, which reduces material loss and associated costs, says…