Process and systems for obtaining 1,4-butanediol from fermentation broths

Abstract

A process of purifying 1,4-butanediol (1,4-BDO) from a fermentation broth including separating solid materials, salts and water, and subjecting the resulting material to a two, three or four column distillation system, that can include a wiped film evaporator to produce a purified 1,4-butanediol product.