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本发明公开了一种新戊二醇双精馏塔持续操作工艺,包括以下步骤:(1)将含有新戊二醇的浓缩液送入第一精馏塔进行减压精馏,精馏温度低于新戊二醇的沸点,使得到的初步新戊二醇由塔底部采出;(2)将步骤(1)采出的初步新戊二醇送入第二精馏塔中进行减压精馏,精馏温度高于新戊二醇的沸
The invention discloses a continuous operation process of a neopentyl glycol double rectification column, which comprises the following steps: (1) feeding a concentrated liquid containing neopentyl glycol into a first rectification column for vacuum distillation, and rectifying temperature Lower than the boiling point of neopentyl glycol so that the obtained preliminary neopentyl glycol is recovered from the bottom of the column; (2) the preliminary neopentyl glycol produced in step (1) is sent to the second rectification column for depressurization Distillation, distillation temperature is higher than neopentyl glycol boiling