[EN] STABILIZED CHOLINE SOLUTIONS AND METHODS FOR PREPARING THE SAME<br/>[FR] SOLUTIONS DE CHOLINE STABILISÉES ET LEURS PROCÉDÉS DE PRÉPARATION
申请人:TAMINCO N V
公开号:WO2013077855A1
公开(公告)日:2013-05-30
A method for the stabilization of an aqueous choline hydroxide solution includes optionally, adding a first stabilizer of a dithionite salt or a dialkylhydroxylamine to an aqueous solution containing reactants that will produce an aqueous choline hydroxide solution; and after the aqueous choline hydroxide solution is formed, adding a second stabilizer of a dithionite salt or a dialkylhydroxylamine to the aqueous choline hydroxide solution. The stabilized choline hydroxide solution may include choline hydroxide, water, and a dithionite salt and/or a dialkylhydroxylamine as a stabilizer present in an amount of about 100 ppm to about 2000 ppm by weight of the stabilized choline hydroxide solution.
一种稳定水性胆碱羟化物溶液的方法包括:在含有可生成水性胆碱羟化物溶液的反应物的水溶液中,选择性地添加二硫代硫酸盐或二烷基羟胺的第一稳定剂;在水性胆碱羟化物溶液形成后,向水性胆碱羟化物溶液中添加二硫代硫酸盐或二烷基羟胺的第二稳定剂。稳定的胆碱羟化物溶液可能包括胆碱羟化物、水和二硫代硫酸盐和/或二烷基羟胺作为稳定剂,其重量为稳定的胆碱羟化物溶液的约100 ppm至约2000 ppm。