A PROCESS FOR THE RECOVERY OF 1,3-PROPANEDIOL FROM A FERMENTATION BROTH COMPRISING 1,3-PROPANEDIOL

摘要

contacting a fermentation broth that comprises greater than about 10 wt % water, about 5-85 wt % l,3-propanediol, and about 5-70 wt % of at least one contaminant selected from glycerol, glucose and butanetriol, with at least one solvent extractant to form a first mixture, wherein the solvent extractant is selected from the group consisting of pentanol, propan-I-0I, hexanol oleyl alcohol, 4-methyl pentan-2-one, isopropyl acetate, tributyl phosphate, oleic acid, soya oil, castor oil, and combinations thereof, and wherein the volume/volume ratio of solvent extractant to fermentation broth is between 1