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公开(公告)号：EP0690836B1
公开(公告)日：1998-08-19
申请号：EP94909156.5
申请日：1994-03-07
发明人： DENIS, Philippe , PATOIS, Carl , PERRON, Robert
IPC分类号： C07C51/353 , C07C55/14
CPC分类号： C07C51/353 , C07C55/14
摘要： A method for isomerising carboxylic acids and particularly branched acids into the corresponding straight acids. In particular, the method is for isomerising at least one branched saturated carboxylic acid by heating it in the presence of an effective amount of an iridium catalyst and an iodinated or brominated promoter, the promoter:Ir molar ratio being from 0.1:1 to 20:1. The method is particularly suitable for upgrading methyl-glutaric and ethyl-succinic acids into adipic acid.
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公开(公告)号：EP0918741A1
公开(公告)日：1999-06-02
申请号：EP97926056.0
申请日：1997-05-29
摘要： The invention discloses a method for purifying adipic acid by crystallization or recrystallization in at least one carbolyxic acid. More precisely, it discloses an improvement in adipic acid crystallization or recrystallization, characterised in that the said crystallization or recrystallization is effected in at least one carboxylic acid with a melting point below 20 °C. The presence of carbon monoxide during crystallization or recrystallization can have a favourable effect on the adipic acid purity, in particular by reducing the content of metal catalyst traces of the adipic acid. The adipic acid purity can also be improved when the crystallization or recrystallization is effected in presence of a strong proton acid.
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3.发明公开PROCEDE DE PREPARATION ELECTROCHIMIQUE DE CATALYSEURS A BASE DE METAL DE TRANSITION ET DE PHOSPHINE 失效方法过渡金属电化学方法生产和磷化氢含催化剂
公开(公告)号：EP0876217A1
公开(公告)日：1998-11-11
申请号：EP96942426.0
申请日：1996-12-18
发明人： HORBEZ, Dominique , HUSER, Marc , PERRON, Robert
CPC分类号： B01J31/2404 , B01J31/2295 , B01J31/24 , B01J31/2409 , B01J31/2414 , B01J37/348 , B01J2231/32 , B01J2531/80 , B01J2531/847 , B01J2531/96
摘要： The present invention relates to an electrochemical process for the preparation of compounds which can be used as catalysts. The disclosed compounds comprise more specifically a transition metal with an oxidation degree of 0 or 1 associated to at least one monodentate or bidentate hydrosoluble phosphine. The process for the electrochemical synthesis of catalysts comprises the treatment by electrolysis of an aqueous solution containing at least a compound of a transition metal and a monodentate or bidentate hydrosoluble phosphine placed within the cathode compartment of an electrolysis cell of an electrolyser.
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4.发明公开
公开(公告)号：EP0876214A1
公开(公告)日：1998-11-11
申请号：EP96942425.0
申请日：1996-12-18
发明人： HUSER, Marc , PERRON, Robert
CPC分类号： B01J31/2404 , B01J31/24 , B01J31/2409 , B01J31/2414 , B01J2231/32 , B01J2531/80 , B01J2531/847 , B01J2531/96 , C07F15/045
摘要： The present invention relates to a process for the preparation through hydrogenation of compounds which can be used as catalysts. The disclosed compounds comprise more specifically at least one transition metal with an oxydation degree of 0 or 1 associated to at least one monodentate or bidentate hydrosoluble phosphine. The process for the synthesis of catalysts comprises the hydrogenation of an aqueous solution containing at least one compound of a transition metal and a monodentate or bidentate hydrosoluble phosphine.
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5.发明公开
公开(公告)号：EP0854858A1
公开(公告)日：1998-07-29
申请号：EP96932661.0
申请日：1996-09-27
发明人： HUSER, Marc , PERRON, Robert
CPC分类号： B01J31/2404 , B01J31/2409 , B01J31/2414 , B01J31/26 , B01J2231/32 , B01J2231/52 , B01J2531/824 , B01J2531/842 , B01J2531/847 , B01J2531/96 , C07C253/10 , C07C253/30 , C07C255/04 , C07C255/07
摘要： A method for the hydrocyanation of ethylenically nitrile-unsaturated organic compounds, and particularly diolefins or substituted olefins such as alkene nitriles. Specifically, the method is for hydrocyanating organic compounds comprising at least one double ethylene bond by reacting them with hydrogen cyanide in the presence of an aqueous solution of a catalyst that includes at least one transition metal compound and at least one water-soluble phosphine, wherein said water-soluble phosphine is a monodentate or bidentate phosphine.
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