Membranes Target ORGANIC SOLVENTS

摘要

ORGANIC SOLVENT nanofiltration (OSN) is starting to carve out a role in a number of process applications, including polymeric impurity removal, monomer/dimer separation, catalyst recovery and recycle, and color elimination. The technology requires less than 10% of the energy needed by thermal separation techniques such as distillation, and can provide ultrapure products and help increase product yield. At the forefront of OSN developments is Evonik Industries, Essen, Germany. Its efforts really took off in March 2010 with the acquisition of Membrane Extraction Technology (MET), London, U.K. — a company spun off in 1996 by the department of chemical engineering at Imperial College London that boasts a range of proprietary technologies and offers DuraMem OSN membranes.