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1. 发明专利

JPS6357790A PRODUCTION OF QUATERNARY AMMONIUM HYDROXIDE 失效
公开(公告)号：JPS6357790A
公开(公告)日：1988-03-12
申请号：JP19799486
申请日：1986-08-26
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： AOYAMA TETSUO , SHIMA EIJI , ISHIKAWA JIRO
IPC分类号： C25B3/04
摘要： PURPOSE:To prevent the corrosion of an apparatus as well as to easily obtain a high purity product when quat. ammonium hydroxide is produced from a quat. ammonium salt as starting material by electrolysis with a cation exchange membrane, by specifying the starting material. CONSTITUTION:A quat. ammonium monoalkylcarbonate or monoarylcarbonate represented by the general formula is electrolyzed in an electrolytic cell divided into anode and cathode chambers with a cation exchange membrane. In the formula, each of R1-R4 is 1-8C alkyl, 1-8C hydroxyalkyl, 2-9C alkoxyalkyl, aryl or hydroxyaryl and R5 is

2. 发明专利

JPS63274149A SEMICONDUCTOR TREATMENT 失效
公开(公告)号：JPS63274149A
公开(公告)日：1988-11-11
申请号：JP10893087
申请日：1987-05-06
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： AOYAMA TETSUO , TAKAHASHI MAYUMI , ISHIKAWA JIRO , SHIMA EIJI
IPC分类号： C11D10/02 , C11D1/62 , C11D7/18 , C11D17/00 , H01L21/304 , H01L21/306
摘要： PURPOSE:To make it possible to carry out rapidly the degreasing on the surface of a semiconductor and the removal and cleaning of the contamination due to inorganic substances in a comparatively short time by a method wherein a quarternary ammonium hydroxide, a nonionic surface active agent and hydrogen peroxide are each contained in a specified ratio. CONSTITUTION:A quarternary ammonium hydroxide of a general formula RnN(R')4-n.OH, where the R shows an alkyl group having 1-4 carbon atoms, the R' shows an alkyl group having 1-4 carbon atoms or a hydroxy-substituted alkylene group having 2-4 carbon atoms, the R and the R' can be both the same or can be different from each other and the (n) is an integer of 1-3, is used within the range of a concentration of 0.01-30 wt.% in the whole solution, desirably within the range of a concentration of 0.05-20 wt.%. A nonionic surface active agent is used within the range of a concentration of 0.001-5 wt.% in the whole solution, desirably within the range of a concentration of 0.01-3 wt.% and is normally used within the range of a concentration of 0.01-0.5 wt.%. Hydrogen perioxide is used within the range of a concentration of 0.001-20 wt.% in the whole solution, desirably within the range of a concentration of 0.01-10 wt.%. In case the concentration of the hydrogen peroxide is low, the control of an etching action is insufficient, while in case the concentration is high, there is no problem specially in the detergency itself, but the amount to be decomposed is increased and it is uneconomical to use the hydrogen peroxide in that way.

3. 发明专利

JPH03141242A PRODUCTION OF CARBOXYLIC ACID ESTER AND FORMAMIDE 失效
公开(公告)号：JPH03141242A
公开(公告)日：1991-06-17
申请号：JP27835089
申请日：1989-10-27
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： ISHIKAWA JIRO , ABE TAKAFUMI , HIGUCHI HIROBUMI , KIDA KOICHI
IPC分类号： C07C69/675 , C07C233/03 , C25B1/14 , C25B1/18
摘要： PURPOSE:To facilitate separation and recovery of a catalyst and enable reuse thereof by electrolyzing a reaction product solution in reacting a carboxamide with a formic acid ester, etc., in the presence of a metal alcoholate catalyst and producing a carboxylic acid ester and formamide. CONSTITUTION:A carboxamide is reacted with a formic acid ester in the presence of a metal alcoholate or the carboxamide is reacted with an alcohol and carbon monoxide to produce an industrially important carboxylic acid ester and formamide useful as solvents, various treating agents, electrolytes, antifreezing agents, etc. In the process, the reaction product solution is electrolyzed using an electrolytic cell preferably divided into the cathode compartment and the anode compartment with a cation exchange membrane at 0.005-10A/cm , preferably 0.01-5A/cm current density to readily separate and recover the catalyst, which is then reused for the reaction. Thereby, catalyst cost is remarkably reduced.

4. 发明专利

JPS63134684A PRODUCTION OF QUATERNARY AMMONIUM HYDROXIDE 失效
公开(公告)号：JPS63134684A
公开(公告)日：1988-06-07
申请号：JP27875386
申请日：1986-11-25
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： AOYAMA TETSUO , SHIMA EIJI , ISHIKAWA JIRO , SAKURAI NAOTO
IPC分类号： C25B3/00
摘要： PURPOSE:To easily produce high purity quat. ammonium hydroxide with high electrolytic efficiency by electrolyzing quat. ammonium hydrogencarbonate as starting material in an electrolytic cell divided into anode and cathode chambers with a cation exchange membrane. CONSTITUTION:Quat. ammonium hydrogencarbonate represented by the general formula (where each of R1-R4 is 1-8C alkyl or hydroxyalkyl, 2-9C alkoxyalkyl, aryl or hydroxyaryl group) is electrolyzed in an electrolytic cell divided into anode and cathode chambers with a cation exchange membrane. A fluororesin membrane having cation exchange groups such as sulfonic acid groups is preferably used as the cation exchange membrane. An about 1-60wt% soln. of the starting material is used as an anolyte, extra pure water as a catholyte and the cell is fitted with a carbon anode and a stainless steel cathode. By the electrolysis, quat. ammonium hydroxide is produced in the cathode chamber.

5. 发明专利

JPH02268137A PREPARATION OF CARBOXYLIC ACID ESTER AND FORMAMIDE 失效
公开(公告)号：JPH02268137A
公开(公告)日：1990-11-01
申请号：JP8973789
申请日：1989-04-11
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： ISHIKAWA JIRO , HIGUCHI HIROBUMI , EBATA HIDEJI , KIDA KOICHI
IPC分类号： B01J31/02 , C07B61/00 , C07C67/20 , C07C69/54 , C07C69/675 , C07C231/08 , C07C231/10 , C07C233/03
摘要： PURPOSE:To prepared the subject compound in high selectivity under a mild condition by reacting a carboxylic acid amide with a formic acid ester or reacting the carboxylic acid amide with the alcohol and CO in the presence of an alkaline earth metal oxide as a catalyst. CONSTITUTION:When a carboxylic acid amide is reacted with a formic acid ester or with an alcohol and carbon monoxide to prepare a carboxylic acid ester and formamide, an alkaline earth metal oxide is employed as a catalyst. The catalyst includes the oxides of one kinds or more of magnesium, calcium, strontium and barium. The method permits to carry out the reaction under an extremely mild condition to effectively give the objective compound. The carboxylic acid ester is an industrially important compound. The formation is useful as a solvent, a treating agent for various purposes, an electrolyte, an antifreezing agent or an intermediate for dyes, pigments, drugs, etc.

6. 发明专利

JPS63132863A PRODUCTION OF QUATERNARY AMMONIUM BICARBONATE 失效
公开(公告)号：JPS63132863A
公开(公告)日：1988-06-04
申请号：JP27875586
申请日：1986-11-25
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： AOYAMA TETSUO , SHIMA EIJI , ISHIKAWA JIRO , SAKURAI NAOTO
IPC分类号： C07C211/63 , C07C67/00 , C07C209/00 , C07C209/68 , C07C211/62
摘要： PURPOSE:To obtain a compound useful as a surface active agent, a raw material thereof, a raw material for drugs, cosmetics, etc., in high yield, by reacting a quaternary ammonium alkyl or a monoaryl carbonate with water. CONSTITUTION:A quaternary ammonium monoalkyl carbonate or monoaryl carbonate obtained from a dialkyl carbonate or diaryl carbonate and a tertiary amine is reacted with water at 40-250 deg.C optionally in an inert gas atmosphere such as nitrogen, argon, etc., to give the aimed substance. The amount of water used is 2-30mol based on 1mol quaternary ammonium monoalkyl carbonate or monoaryl carbonate and the reaction can be carried out by using a polar solvent such as methanol, acetonitrile, etc. The amount of the solvent used is 1-20 times as much as that of the quaternary ammonium monoalkyl carbonate or monoaryl carbonate.

7. 发明专利

JPS63132862A PRODUCTION OF QUATERNARY AMMONIUM BICARBONATE 失效
公开(公告)号：JPS63132862A
公开(公告)日：1988-06-04
申请号：JP27875486
申请日：1986-11-25
申请人： MITSUBISHI GAS CHEMICAL CO
发明人： AOYAMA TETSUO , SHIMA EIJI , ISHIKAWA JIRO , SAKURAI NAOTO
IPC分类号： C07C211/63 , C07C67/00 , C07C209/00 , C07C209/20 , C07C211/62
摘要： PURPOSE:To obtain the titled compound useful as a surface active agent, a raw material thereof, a raw material for drugs, cosmetics, etc., in high yield, by reacting a tertiary amine with a carbonic acid dialkyl ester or a diaryl carbonate i the presence of water. CONSTITUTION:A tertiary amine such as trimethylamine, etc., is reacted with a carbonic acid dialkyl ester or diaryl carbonate (e.g. methyl carbonate) in the presence of water at 30-300 deg.C, preferably 50-200 deg.C to give the aimed substance. The molar ratio of the carbonic acid ester or diaryl carbonate and the tertiary amine in the reaction is 0.05-20. Optionally the reaction is carried out in a polar solvent such as methanol, etc., in an inert gas atmosphere such as nitrogen, argon, etc. The amount of water used is >=the stoichiometric amount based on the carbonic acid dialkyl or diaryl carbonate or the tertiary amine.

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