Method for purifying an alcohol from a fermentation broth...

Details Method for purifying an alcohol from a fermentation broth... Method for purifying an alcohol from a fermentation broth...

B - Operations, Transporting

01

D

B01D 11/04 (2006.01) B01D 61/14 (2006.01) C07C 29/76 (2006.01) C12P 7/18 (2006.01)

Patent

CA 2738452

Method for purifying an alcohol from a fermentation broth comprising adding a heavy solvent, evaporating the alcohol to be purified, and mechanically drawing out of the crystallized salts by heavy solvent flow and scrapping on a falling film evaporator, a wiped film evaporator, a thin film evaporator or a short path evaporator.

La présente invention concerne un procédé permettant de purifier un alcool à partir d'un bouillon de fermentation et qui comprend l'ajout d'un solvant lourd, l'évaporation de l'alcool à purifier et le retrait mécanique des sels cristallisés au moyen d'un flux de solvant lourd et de l'élimination sur un évaporateur à film tombant, un évaporateur à film essuyé, un évaporateur à film mince ou un évaporateur moléculaire.

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