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本发明公开了一种2-甲基喹啉的精制方法。该方法包括如下步骤:在溶剂中,2-甲基喹啉富液与酸进行成盐反应,固液分离,得固体即为2-甲基喹啉盐粗品;2-甲基喹啉盐粗品进行逆流分级重结晶
The present invention discloses a method for the purification of 2-methylquinoline. The method comprises the following steps of: salt-forming reaction of 2-methylquinoline rich liquid and acid in a solvent and solid-liquid separation to obtain crude 2-methylquinoline salt as a solid; crude 2-methylquinoline salt Countercurrent fractional recrystallization