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1. 发明授权

US5342961A Process for the production of low-viscosity imidazolinium surfactants by quaternization of 1-hydroxyethyl-2-alkyl imidazolines 失效
标题翻译：通过1-羟乙基-2-烷基咪唑的季铵化生产低粘度咪唑啉表面活性剂的方法
公开(公告)号：US5342961A
公开(公告)日：1994-08-30
申请号：US70411
申请日：1993-08-06
申请人： Guenter Uphues , Sven Jaensch , Uwe Ploog , Udo Steinberner
发明人： Guenter Uphues , Sven Jaensch , Uwe Ploog , Udo Steinberner
IPC分类号： C07D233/14 , C07D233/60 , C07D233/04
CPC分类号： C07D233/14
摘要： A process is disclosed for producing fluid imidazolinium tensides by reaction of 1-hydroxyethyl-2-alkylimidazolines with neutralized quaternary agents and hydrolysis of the quaternary products thus obtained with aqueous bases. The 1-hydroxyethyl -2-alkylimidazolines are added at a high temperature to an aqueous solution of the neutralized quaternary agents at a molar proportion between imidazoline derivates and the quaternary agents from 1:1.5 to 1:3. The reaction mixture thus obtained is maintained at a temperature in a range of 70.degree. to 85.degree. C. for 30 to 120 minutes, 0.85 to 1.0 mol alkali metal hydroxides, referred to the amount of quaternary agents added during step (a), are added thereto within the 30 to 120 minutes at a temperature in the range of 75.degree. to 85.degree. C., and the reaction mixture thus obtained is maintained at a temperature in the range of 75.degree. to 90.degree. C. for 140 to 220 minutes. The end products are obtained by a process that is easy to carry out if during step (a) a solution of neutralized quaternary agents is used that contains 0.025 to 0.5 mol of carboxylic acids, referred to the amount to be added of 1-hydroxyethyl-2-alkylimidazolines, and if acids are added to the reaction mixture obtained during step (d), so that when the reaction mixture is diluted with water up to a 10 wt % concentration of the product, a pH value in the range of 7 to 10 is set.
摘要翻译： PCT No.PCT / EP91 / 02254 Sec。 371日期：1993年8月6日 102（e）日期1993年8月6日PCT 1991年11月28日PCT PCT。公开号WO92 / 10481 日期：1992年6月25日。公开了通过1-羟乙基-2-烷基咪唑与中和的季铵化合物反应制备流体咪唑啉表面活性剂的方法，并用水性碱水解所得的季产物。 1-羟乙基-2-烷基咪唑啉在高温下加入到中和的季铵盐的水溶液中，咪唑啉衍生物与季胺之间的摩尔比例为1:1.5至1:3。将如此得到的反应混合物保持在70〜85℃的温度下30〜120分钟，在工序（a）中添加的季铵化合物的量为0.85〜1.0摩尔碱金属氢氧化物为在75〜85℃的温度下在30〜120分钟内加入，将得到的反应混合物在75〜90℃的温度下保持140〜220分钟。如果在步骤（a）中使用含有0.025至0.5mol羧酸的中和季铵盐溶液，则称为最终产物，其中加入的1-羟乙基 - 2-烷基咪唑啉，并且如果将酸加入到步骤（d）中获得的反应混合物中，使得当反应混合物用水稀释至10重量％浓度的产物时，pH值在7至 10设置。

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