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Separation of a high-value pharmaceutical compound from waste ethanol by nanofiltration
M. Brito Martı´nez,B. Van der Bruggen,Z. Rodriguez Negrin,P. Luis Alconero 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.5
Recovery of the high-value active pharmaceutical ingredient 1-(5-bromo-fur-2-il)-2-bromo-2-nitroethane, referred as G-1 in this work, from ethanol solution was studied by using nanofiltration (NF), with the objective of closing the production cycle. A recovery of G-1 around 90% was obtained,offering the self-made membranes with 25% and 27% PES and the commercial membrane NF270(FilmTec, Dow) the most promising results in terms of flux of ethanol through the membrane. These membranes were considered in the process design of a real scale system, showing the technical and economic viability of NF for G-1 recovery.