A process for preparing a high-purity quaternary ammonium salt comprising:
(1) adding an oxide or hydroxide of a Group 1, 2, 12 or 13 metal to a quaternary ammonium salt containing a protonic acid salt of a tertiary amine as an impurity and thereby neutralizing the tertiary amine protonic acid salt with the metal oxide or hydroxide to convert the acid salt to a tertiary amine and water and to convert the metal oxide or hydroxide to a metal salt at the same time, and
(2) removing the tertiary amine, water and metal salt produced from the system.
一种制备高纯度季
铵盐的方法,包括以下步骤:(1)向含有三级胺质子酸盐杂质的季
铵盐中加入1、2、12或13族
金属的氧化物或氢氧化物,通过金属氧化物或氢氧化物中和三级胺质子酸盐,将酸盐转化为三级胺和
水,并同时将金属氧化物或氢氧化物转化为
金属盐;(2)从体系中去除产生的三级胺、
水和
金属盐。