FR2448523A1 - Procede de preparation de l'acide glyoxylique - Google Patents
Procede de preparation de l'acide glyoxyliqueInfo
- Publication number
- FR2448523A1 FR2448523A1 FR8002682A FR8002682A FR2448523A1 FR 2448523 A1 FR2448523 A1 FR 2448523A1 FR 8002682 A FR8002682 A FR 8002682A FR 8002682 A FR8002682 A FR 8002682A FR 2448523 A1 FR2448523 A1 FR 2448523A1
- Authority
- FR
- France
- Prior art keywords
- contg
- gas
- prepn
- phase over
- vanadium
- 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.)
- Granted
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
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/373—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of functional groups containing oxygen only in doubly bound form
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Catalysts (AREA)
Abstract
PROCEDE DE PREPARATION DE L'ACIDE GLYOXYLIQUE. L'INVENTION CONCERNE UN PROCEDE DE PREPARATION DE L'ACIDE GLYOXYLIQUE OCH-COOH PAR CATALYSE HETEROGENE. ON FAIT PASSER DE L'ACIDE GLYCOLIQUE HOCH-COOH, A L'ETAT DE VAPEUR, SUR UN CATALYSEUR DE DESHYDRATATION. CE DERNIER RENFERME PLUSIEURS ELEMENTS TELS QUE V, MO, W, TI, CR, MN, FE, CO, NI, LES METAUX ALCALINS, LES METAUX ALCALINO-TERREUX, ETC. A L'ETAT METALLIQUE OU SOUS FORME DE COMPOSES, APPLIQUES SUR UN SUPPORT DE SILICATE D'ALUMINIUM. L'ACIDE GLYOXYLIQUE EST UN CORPS DE DEPART INTERESSANT DANS DE NOMBREUSES SYNTHESES DE MEDICAMENTS.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19792904754 DE2904754A1 (de) | 1979-02-08 | 1979-02-08 | Verfahren zur herstellung von glyoxylsaeure |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2448523A1 true FR2448523A1 (fr) | 1980-09-05 |
FR2448523B1 FR2448523B1 (fr) | 1982-12-10 |
Family
ID=6062454
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8002682A Granted FR2448523A1 (fr) | 1979-02-08 | 1980-02-07 | Procede de preparation de l'acide glyoxylique |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2904754A1 (fr) |
FR (1) | FR2448523A1 (fr) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1627091A (en) * | 1923-03-05 | 1927-05-03 | Boehringer Sohn Ingelheim | Making keto and aldo aliphatic carboxylic acids |
DE447838C (de) * | 1923-03-06 | 1927-08-08 | Boehringer Sohn Ingelheim | Verfahren zur Herstellung von Oxosaeureestern und Oxosaeuren |
-
1979
- 1979-02-08 DE DE19792904754 patent/DE2904754A1/de active Granted
-
1980
- 1980-02-07 FR FR8002682A patent/FR2448523A1/fr active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1627091A (en) * | 1923-03-05 | 1927-05-03 | Boehringer Sohn Ingelheim | Making keto and aldo aliphatic carboxylic acids |
DE447838C (de) * | 1923-03-06 | 1927-08-08 | Boehringer Sohn Ingelheim | Verfahren zur Herstellung von Oxosaeureestern und Oxosaeuren |
Also Published As
Publication number | Publication date |
---|---|
DE2904754C2 (fr) | 1987-12-17 |
FR2448523B1 (fr) | 1982-12-10 |
DE2904754A1 (de) | 1980-08-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |