The present invention relates to a method for obtaining ethanol from a feed solution comprising: providing a feed solution comprising water and ethanol; providing an extractant that is immiscible with the feed solution, the extractant comprising a mixture of at least one alkane having a first yield factor for extraction of ethanol from the feed solution; and at least one secondary or tertiary branched aliphatic alcohol having from 6 to 12 carbon atoms, wherein the branched aliphatic alcohol has a second yield factor for extraction of ethanol from the feed solution, wherein the mixture has a third yield factor for extraction of ethanol from the feed solution, and further wherein the third yield factor is greater than both of the first and second yield factors, wherein the extractant has a boiling point greater than 150°C; contacting the extractant with the feed solution; and at least partially removing ethanol from the extractant.
本发明涉及一种从料液中获得
乙醇的方法,包括提供一种由
水和
乙醇组成的给料溶液; 提供一种与给料溶液不相溶的萃取剂,该萃取剂包括至少一种
烷烃的混合物,该
烷烃具有从给料溶液中萃取
乙醇的第一产率因子;和至少一种具有 6 至 12 个碳原子的仲或叔支化
脂肪醇,其中支化
脂肪醇具有从给料溶液中萃取
乙醇的第二产率因子,其中混合物具有从给料溶液中萃取
乙醇的第三产率因子,而且第三产率因子大于第一和第二产率因子,其中萃取剂的沸点大于 150°C;将萃取剂与给料溶液接触;以及至少部分地从萃取剂中除去
乙醇。