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1.发明授权
公开(公告)号：EP0646107B1
公开(公告)日：1998-10-07
申请号：EP93912920.1
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HEIMANN, Frank , HUBER, Guenther , HABERMANN, Wolfgang , VOSS, Hartwig , SIEGEL, Hardo
IPC分类号： C07C209/62 , C07C51/06 , C07C51/02 , B01D61/44
CPC分类号： B01D61/44 , B01D61/445 , C07C27/00 , C07C51/06 , C07C209/62 , C08G69/48
摘要： Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base and subsequently converting electrochemically the dicarboxylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.
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2.发明授权
公开(公告)号：EP0646106B1
公开(公告)日：1998-10-14
申请号：EP93912919.3
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HEIMANN, Frank , HUBER, Guenther , HABERMANN, Wolfgang , VOSS, Hartwig , SIEGEL, Hardo
CPC分类号： C25B3/00 , B01D61/44 , B01D61/445 , C07C51/06 , C07C51/43 , C07C209/62 , C08G69/48 , C07C55/14
摘要： Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers, by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base in an alcoholic solution and subsequently converting electrochemically the dicarboxylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.
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公开(公告)号：EP0646042A1
公开(公告)日：1995-04-05
申请号：EP93912921.0
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HABERMANN, Wolfgang , HUBER, Guenther , HEIMANN, Frank , VOSS, Hartwig , SIEGEL, Hardo
CPC分类号： C07C51/02 , B01D61/44 , B01D61/445
摘要： The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH2)n-COOH, in which n may be an integer from 1 to 8, or mixtures of such dicarboxylic acids, to an electrochemical treatment.
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公开(公告)号：EP0646042B1
公开(公告)日：1998-11-11
申请号：EP93912921.9
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HABERMANN, Wolfgang , HUBER, Guenther , HEIMANN, Frank , VOSS, Hartwig , SIEGEL, Hardo
CPC分类号： C07C51/02 , B01D61/44 , B01D61/445
摘要： The invention concerns the electrochemical preparation of dicarboxylic acids by subjecting an aqueous solution containing essentially the alkali-metal salt of a dicarboxylic acid of the general formula (I): HOOC-(CH2)n-COOH, in which n may be an integer from 1 to 8, or mixtures of such dicarboxylic acids, to an electrochemical treatment.
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5.发明公开VERFAHREN ZUR GLEICHZEITIGEN HERSTELLUNG VON DICARBONSÄUREN UND DIAMINEN AUS POLYAMIDEN 失效操作法，二羧酸和二胺聚酰胺同时生产。
公开(公告)号：EP0646107A1
公开(公告)日：1995-04-05
申请号：EP93912920.0
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HEIMANN, Frank , HUBER, Guenther , HABERMANN, Wolfgang , VOSS, Hartwig , SIEGEL, Hardo
CPC分类号： B01D61/44 , B01D61/445 , C07C27/00 , C07C51/06 , C07C209/62 , C08G69/48
摘要： Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base and subsequently converting electrochemically the dicarboxylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.
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6.发明公开
公开(公告)号：EP0646106A1
公开(公告)日：1995-04-05
申请号：EP93912919.0
申请日：1993-06-09
发明人： SEELIGER, Ursula , MUELLER, Wolfgang, F. , HEIMANN, Frank , HUBER, Guenther , HABERMANN, Wolfgang , VOSS, Hartwig , SIEGEL, Hardo
CPC分类号： C25B3/00 , B01D61/44 , B01D61/445 , C07C51/06 , C07C51/43 , C07C209/62 , C08G69/48 , C07C55/14
摘要： Disclosed is a method for the simultaneous preparation of dicarboxylic acids and diamines from (a) polymers based on polyamides made by reacting dicarboxylic acids or derivatives thereof with diamines or (b) compounds containing essentially such polymers, by decomposing these polymers into their constituent monomers by treating the polymers or compounds with a base in an alcoholic solution and subsequently converting electrochemically the dicarboxylic-acid salts thus produced into the corresponding dicarboxylic acids and bases.
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