Production of quaternary ammonium hydroxide

Abstract

Abstract PURPOSE:To produce easily quaternary ammonium hydroxide having high purity and excellent storage stability by electrolyzing the quaternary ammonium of the org. acid expressed by the specific general formula in an electrolytic cell in which a cation exchange membrane is used as a diaphragm. CONSTITUTION:Quaternary ammonium hydroxide having high purity and excellent storage stability in a stainless steel vessel is obtd. without inducing corrosion of an electrode and deterioration of the film in the stage of electrolysis by electrolyzing the quaternary ammonium salt of the org. salt expressed by the general formula (wherein R1-R4; 1-4C alkyl group or hydroxyl alkyl group, X; an org. acid having a carboxyl group) in an electrolytic cell in which a cation exchange membrane is used as a diaphragm. The membrane of fluorocarbon having excellent durability is preferable as the above-mentioned cation exchange membrane and it is also possible to reduce the manufacturing cost by using the membrane of PS or PP. The tetramethyl ammonium formate or the like of the org. acid of which the X is about <=150mol.wt. out of the above-mentioned quaternary ammonium salt is adequately used as said salt is easily refinable at a low b.p.

Inventors

• 👤 Shunpei Shimizu
• 👤 駿平 清水

Bibliographic Details