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公开(公告)号：DK0876329T3
公开(公告)日：2001-09-24
申请号：DK96943039
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUENTER
IPC: C12P13/04 , C07C231/02 , C07C233/47 , C07C319/12 , C07C319/20 , C07C319/28 , C07C323/59 , C12P41/00
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公开(公告)号：DE59607102D1
公开(公告)日：2001-07-19
申请号：DE59607102
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUENTER
IPC: C07B57/00 , C07C227/34 , C07C227/36 , C07C319/20 , C07C323/60 , C12P13/04 , C12P41/00
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公开(公告)号：DE19546533C2
公开(公告)日：2000-04-27
申请号：DE19546533
申请日：1995-12-13
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUENTER
IPC: C12P13/04 , C07C231/02 , C07C233/47 , C07C319/12 , C07C319/20 , C07C319/28 , C07C323/59 , C12P41/00 , C07C231/24 , C12P13/12
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公开(公告)号：CA1223886A
公开(公告)日：1987-07-07
申请号：CA449824
申请日：1984-03-16
Applicant: DEGUSSA
Inventor： KARRENBAUER MICHAEL , KLEEMANN AXEL , LUESSLING THEODOR , SCHAEFER FRITZ
IPC: C07C319/24 , C07C67/00 , C07C313/00 , C07C323/58 , C07C149/243
Abstract: D,L-homocystine is produced by mixing an aqueous solution of the disodium salt of D,L-homocysteine having a concentration of between 0.4 and 1.6 moles per litre and an initial pH of between 7.0 and 8.0 with at least the equivalent amount of an aqueous hydrogen peroxide solution and on completed oxidation the pH is adjusted to approximately 5.3. The hydrogen peroxide solution can be applied in a concentration of between 20 and 60 percent by weight.
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公开(公告)号：PT873290E
公开(公告)日：2004-02-27
申请号：PT96942357
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , KARRENBAUER MICHAEL , BOMMARIUS ANDREAS , KNAUP GUNTER
IPC: C07B55/00 , C07C231/16 , C07C231/22 , C07C233/47 , C07C319/20 , C07C323/59 , C12P13/12 , C12P41/00
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Patent Agency Ranking
公开(公告)号：AU1190897A
公开(公告)日：1997-07-03
申请号：AU1190897
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUNTER
IPC: C07B57/00 , C07C227/34 , C07C227/36 , C07C319/20 , C07C323/60 , C12P13/04 , C12P41/00
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公开(公告)号：HU195469B
公开(公告)日：1988-05-30
申请号：HU446583
申请日：1983-12-23
Applicant: DEGUSSA
Inventor： KARRENBAUER MICHAEL , KLEEMANN AXEL , MOERCK RUDI , LEUCHTENBERGER WOLFGANG
IPC: C07C51/00 , C07C51/42 , C07C59/245 , C07C67/00 , C12P7/46
Abstract: The reaction mixture obtained in the enzymatic reaction of fumaric acid to form L-malic acid contains the L-malic acid and unreacted fumaric acid as their salts. To recover pure solutions of L-malic acid the reaction mixture is treated at 50 DEG to 150 DEG C. with cation exchangers. The eluate after concentration to 30 to 80 weight % content of L-malic acid is filtered. The pure L-malic acid is recovered by evaporating the solutions, in a given case after treatment with activated carbon.
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公开(公告)号：DE59607329D1
公开(公告)日：2001-08-23
申请号：DE59607329
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUENTER
IPC: C12P13/04 , C07C231/02 , C07C233/47 , C07C319/12 , C07C319/20 , C07C319/28 , C07C323/59 , C12P41/00
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公开(公告)号：DE19546532C2
公开(公告)日：2000-04-20
申请号：DE19546532
申请日：1995-12-13
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUENTER
IPC: C07B57/00 , C07C227/34 , C07C227/36 , C07C319/20 , C07C323/60 , C12P13/04 , C12P41/00
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公开(公告)号：AU1190797A
公开(公告)日：1997-07-03
申请号：AU1190797
申请日：1996-12-05
Applicant: DEGUSSA
Inventor： DRAUZ KARLHEINZ , BOMMARIUS ANDREAS , KARRENBAUER MICHAEL , KNAUP GUNTER
IPC: C12P13/04 , C07C231/02 , C07C233/47 , C07C319/12 , C07C319/20 , C07C319/28 , C07C323/59 , C12P41/00
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