Recovery of butanol from a mixture of butanol, water, and an organic extractant

摘要

A process for recovering butanol from a mixture comprising a water-immiscible organic extractant, water, butanol, and optionally a non-condensable gas, is provided. The butanol is selected from 1-butanol, 2-butanol, isobutanol, and mixtures thereof. The extractant comprises at least one solvent selected from the group consisting of C to C fatty alcohols, C to C fatty acids, esters of C to C fatty acids, C to C fatty aldehydes, and mixtures thereof.