There is disclosed a process for the separation of long chain dibasic acid and fatty acid, comprising: (1) reacting a mixture of long chain dibasic acid and fatty acid with ammonium hydroxide to form an insoluble ammonium salt of fatty acid and a soluble ammonium salt of long chain dibasic acid; (2) recovering the insoluble ammonium salt of fatty acid; and (3) adding an acid to the mother liquor of step (2) to obtain the long chain dibasic acid.
本发明公开了一种分离长链二元酸和
脂肪酸的工艺,包括:(1) 将长链二元酸和
脂肪酸的混合物与氢氧化
铵反应,生成
脂肪酸的不溶性
铵盐和长链二元酸的可溶性
铵盐;(2) 回收
脂肪酸的不溶性
铵盐;(3) 向步骤(2)的母液中加入一种酸,得到长链二元酸。