QUATERNARY AMMONIUM SALT-CONTAINING CATALYST FOR DISSOCIATION OF BLOCKING AGENT AND USE THEREOF
申请人:TOSOH CORPORATION
公开号:US20150344727A1
公开(公告)日:2015-12-03
A catalyst containing a quaternary ammonium salt represented by the following general formula (1) is used as a catalyst for dissociation of a blocking agent.
[In the formula, each of R
1
to R
3
represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 14 carbon atoms; R
4
represents an aliphatic hydrocarbon group having 9 to 20 carbon atoms; X represents at least one member selected from the group consisting of a phosphate group, a borate group, a hydrogencarbonate group, a monoalkylcarbonate group and a carbonate group; a is an integer in the range of 1 to 3; and b is an integer in the range of 1 to 3.]
Synthesis and properties of long-chain quaternary ammonium hydroxides
作者:Tao Geng、Xiao-Guang Teng、Qiu-Xiao Li、Ya-Jie Jiang、Guo-Jin Li
DOI:10.1016/j.cclet.2013.03.051
日期:2013.6
long-chain quaternaryammoniumhydroxides were synthesized from tertiary amines and confirmed by 1 H NMR and FTIR. Surface properties and pH of these surfactants were investigated. The critical micelle concentrations (CMC) of the synthesized quaternaryammoniumhydroxides are lower than the conventional quaternaryammonium surfactants. The micelles shapes of these long-chain quaternaryammonium hydroxides
摘要由叔胺合成了一系列长链季铵氢氧化物,并通过1 H NMR和FTIR进行了证实。研究了这些表面活性剂的表面性质和pH。合成的季铵氢氧化物的临界胶束浓度(CMC)低于常规的季铵表面活性剂。这些长链季铵氢氧化物在水溶液中的胶束形状为球形,浓度为0.1 mol / L。合成的季铵氢氧化物的pH值为12.25–12.51。
QUATERNARY AMMONIUM SALT-CONTAINING CATALYST FOR DISSOCIATION OF BLOCKING AGENT, AND USE FOR SAID CATALYST
申请人:Tosoh Corporation
公开号:EP2937369A1
公开(公告)日:2015-10-28
A catalyst containing a quaternary ammonium salt represented by the following general formula (1) is used as a catalyst for dissociation of a blocking agent.
[In the formula, each of R1 to R3 represents an aliphatic hydrocarbon group having 1 to 8 carbon atoms or an aromatic hydrocarbon group having 6 to 14 carbon atoms; R4 represents an aliphatic hydrocarbon group having 9 to 20 carbon atoms; X represents at least one member selected from the group consisting of a phosphate group, a borate group, a hydrogencarbonate group, a monoalkylcarbonate group and a carbonate group; a is an integer in the range of 1 to 3; and b is an integer in the range of 1 to 3.]
Verfahren zur Herstellung von quaternären Ammoniumsalzen langkettiger aliphatischer Carbonsäuren
申请人:HOECHST AKTIENGESELLSCHAFT
公开号:EP0345475B1
公开(公告)日:1993-04-21
Synthesis of Quaternary Ammonium Salts with Novel Counterions
作者:Yajie Jiang、Tao Geng、Qiuxiao Li
DOI:10.1007/s11743-011-1289-9
日期:2012.1
quaternary ammonium compounds from various tertiary amines and the (environmentally friendly) alkylationagent dimethyl carbonate were carried out. The effects of reaction temperature, reaction time, material mol ratio and solvent dosage on quaternization were examined, and the optimum reaction conditions were determined. Under the optimum conditions, the conversions of mono‐alkyl tertiary amines could