发明公开
EP2782899A1 STABILIZED CHOLINE SOLUTIONS AND METHODS FOR PREPARING THE SAME
审中-公开
稳定CHOLINLÖSUNGEN及其制备方法
- 专利标题: STABILIZED CHOLINE SOLUTIONS AND METHODS FOR PREPARING THE SAME
- 专利标题(中): 稳定CHOLINLÖSUNGEN及其制备方法
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申请号: EP12801483.4申请日: 2012-11-22
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公开(公告)号: EP2782899A1公开(公告)日: 2014-10-01
- 发明人: MOONEN, Kristof , GERNON, Michael, David
- 申请人: Taminco
- 申请人地址: Pantserschipstraat 207 9000 Gent BE
- 专利权人: Taminco
- 当前专利权人: Taminco
- 当前专利权人地址: Pantserschipstraat 207 9000 Gent BE
- 代理机构: Gevers Patents
- 优先权: PCT/US2011/061826 20111122
- 国际公布: WO2013076190 20130530
- 主分类号: C07C213/10
- IPC分类号: C07C213/10 ; C07C215/40 ; C07C239/10 ; C01B17/66
摘要:
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.
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