Disclosed is a method to refine industrial solvent, which has the characteristics: hydrate the industrial solvent, rectify to purify it and acquire the solvent whose purity is larger than 99.95%.

• 本发明公开了一种工业级溶剂的精制方法，其特点是：先将工业级溶剂进行脱水，然后将脱水后的溶剂进行精馏提纯，最后可得到纯度大于99.；95%25的溶剂；