DE69005097D1 - Verfahren zur Herstellung von Glyoxylsäure durch die Oxydation des Glyoxals im wässerigen Milieu in Anwesenheit katalytischer Mengen von Platin. - Google Patents
Verfahren zur Herstellung von Glyoxylsäure durch die Oxydation des Glyoxals im wässerigen Milieu in Anwesenheit katalytischer Mengen von Platin.Info
- Publication number
- DE69005097D1 DE69005097D1 DE90403806T DE69005097T DE69005097D1 DE 69005097 D1 DE69005097 D1 DE 69005097D1 DE 90403806 T DE90403806 T DE 90403806T DE 69005097 T DE69005097 T DE 69005097T DE 69005097 D1 DE69005097 D1 DE 69005097D1
- Authority
- DE
- Germany
- Prior art keywords
- glyoxal
- platinum
- oxidation
- glyoxylic acid
- production
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
- C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
- C07C51/23—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups
- C07C51/235—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of oxygen-containing groups to carboxyl groups of —CHO groups or primary alcohol groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
- Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9000734A FR2657347B1 (fr) | 1990-01-23 | 1990-01-23 | Procede de preparation de l'acide glyoxylique par oxydation catalytique du glyoxal en milieu aqueux en presence de quantites catalytiques de platine. |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69005097D1 true DE69005097D1 (de) | 1994-01-20 |
DE69005097T2 DE69005097T2 (de) | 1994-04-21 |
Family
ID=9393014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE90403806T Expired - Fee Related DE69005097T2 (de) | 1990-01-23 | 1990-12-28 | Verfahren zur Herstellung von Glyoxylsäure durch die Oxydation des Glyoxals im wässerigen Milieu in Anwesenheit katalytischer Mengen von Platin. |
Country Status (8)
Country | Link |
---|---|
US (1) | US5171884A (de) |
EP (1) | EP0438948B1 (de) |
JP (1) | JPH04352743A (de) |
AT (1) | ATE98214T1 (de) |
CA (1) | CA2034141A1 (de) |
DE (1) | DE69005097T2 (de) |
FR (1) | FR2657347B1 (de) |
RU (1) | RU1834884C (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4324442C1 (de) * | 1993-07-21 | 1994-06-30 | Degussa | Katalysator zur Herstellung von Glyoxylsäure durch Oxidation von Glyoxal |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2353159A (en) * | 1942-06-29 | 1944-07-11 | Eastman Kodak Co | Oxidation of lower aliphatic alcohols |
US2472168A (en) * | 1948-10-12 | 1949-06-07 | Charles L Mehltretter | Process for the preparation of d-glucosaccharic acid |
FR1532460A (fr) * | 1967-05-26 | 1968-07-12 | Melle Usines Sa | Procédé d'oxydation d'aldéhydes aliphatiques inférieures |
BE758550A (fr) * | 1969-11-06 | 1971-05-05 | Rhone Poulenc Sa | Procede de preparation d'acides carboxyliques |
JPH01311045A (ja) * | 1988-06-06 | 1989-12-15 | Mitsubishi Petrochem Co Ltd | α―ケト酪酸の製造方法 |
-
1990
- 1990-01-23 FR FR9000734A patent/FR2657347B1/fr not_active Expired - Fee Related
- 1990-12-28 DE DE90403806T patent/DE69005097T2/de not_active Expired - Fee Related
- 1990-12-28 EP EP90403806A patent/EP0438948B1/de not_active Expired - Lifetime
- 1990-12-28 AT AT90403806T patent/ATE98214T1/de not_active IP Right Cessation
-
1991
- 1991-01-15 CA CA002034141A patent/CA2034141A1/en not_active Abandoned
- 1991-01-22 US US07/644,043 patent/US5171884A/en not_active Expired - Fee Related
- 1991-01-22 RU SU914894223A patent/RU1834884C/ru active
- 1991-01-22 JP JP3005868A patent/JPH04352743A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0438948A1 (de) | 1991-07-31 |
JPH04352743A (ja) | 1992-12-07 |
RU1834884C (ru) | 1993-08-15 |
FR2657347A1 (fr) | 1991-07-26 |
ATE98214T1 (de) | 1993-12-15 |
DE69005097T2 (de) | 1994-04-21 |
US5171884A (en) | 1992-12-15 |
CA2034141A1 (en) | 1991-07-24 |
EP0438948B1 (de) | 1993-12-08 |
FR2657347B1 (fr) | 1993-04-09 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |