Invention Grant
US08968523B2 Recovery of butanol isomers from a mixture of butanol isomers, water, and an organic extractant 有权
从丁醇异构体,水和有机萃取剂的混合物中回收丁醇异构体

Recovery of butanol isomers from a mixture of butanol isomers, water, and an organic extractant
Abstract:
A process for recovering butanol from a mixture of a water-immiscible organic extractant, water, butanol, and optionally a non-condensable gas, is provided. The butanol is selected from 1-butanol, isobutanol, and mixtures thereof. An overhead stream from a first distillation column is decanted into two liquid phases. The wet butanol phase is refined in a second distillation column; the aqueous phase is returned to the first distillation column. A portion of the wet butanol phase from the decanter is also returned to the first distillation column. The extractant may be C7 to C22 fatty alcohols, C7 to C22 fatty acids, esters of C7 to C22 fatty acids, C7 to C22 fatty aldehydes, and mixtures thereof.
Information query
Patent Agency Ranking
0/0