ZA844935B - A process for the preparation of a glyoxylic ester - Google Patents
A process for the preparation of a glyoxylic esterInfo
- Publication number
- ZA844935B ZA844935B ZA844935A ZA844935A ZA844935B ZA 844935 B ZA844935 B ZA 844935B ZA 844935 A ZA844935 A ZA 844935A ZA 844935 A ZA844935 A ZA 844935A ZA 844935 B ZA844935 B ZA 844935B
- Authority
- ZA
- South Africa
- Prior art keywords
- acid ester
- preparation
- entrainer
- reaction mixture
- oxidative dehydrogenation
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C67/00—Preparation of carboxylic acid esters
- C07C67/30—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group
- C07C67/313—Preparation of carboxylic acid esters by modifying the acid moiety of the ester, such modification not being an introduction of an ester group by introduction of doubly bound oxygen containing functional groups, e.g. carboxyl groups
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1. A process for the preparation of a glyoxylic acid ester by catalytic oxidative dehydrogenation of the corresponding glycolic acid ester in the gas phase, which process is characterized by passing, after metering in an entrainer, the gaseous reaction mixture formed in the oxidative dehydrogenation to the central part of a fractionating column, where-upon the reaction mixture cools rapidly, and the water of reaction and other low boilers distil out together with the entrainer overhead, and the glyoxylic acid ester results as the bottom product.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE3323372A DE3323372A1 (en) | 1983-06-29 | 1983-06-29 | METHOD FOR PRODUCING A GLYOXYL ACID ESTER |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA844935B true ZA844935B (en) | 1985-02-27 |
Family
ID=6202655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA844935A ZA844935B (en) | 1983-06-29 | 1984-06-28 | A process for the preparation of a glyoxylic ester |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP0130533B1 (en) |
| JP (1) | JPS6023345A (en) |
| AT (1) | ATE18759T1 (en) |
| AU (1) | AU560545B2 (en) |
| CA (1) | CA1224216A (en) |
| DE (2) | DE3323372A1 (en) |
| ZA (1) | ZA844935B (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2588866B1 (en) * | 1985-10-23 | 1988-01-15 | Hoechst France | PROCESS FOR THE MANUFACTURE OF ALKYL GLYOXYLATE |
| US4820385A (en) * | 1988-02-18 | 1989-04-11 | Monsanto Company | Purification of alkyl glyoxylate in a continuous column by azeotropic distillation |
| US4867849A (en) * | 1988-07-25 | 1989-09-19 | Cova Dario R | Purification of alkyl glyoxylate |
| US4900864A (en) * | 1988-08-09 | 1990-02-13 | Anantaneni Prakasa R | Manufacture of alkyl glyoxylates with ferric phosphate catalyst |
| US5217582A (en) * | 1990-06-20 | 1993-06-08 | E. I. Du Pont De Nemours And Company | Process for the isolation of alkyl glyoxylate |
| EP0673914A3 (en) * | 1994-03-25 | 1995-11-22 | Ube Industries | Production of alpha-keto acid ester. |
| JP3150909B2 (en) * | 1996-09-05 | 2001-03-26 | 株式会社日本触媒 | Purification method of glyoxylates |
| JP2013027475A (en) | 2011-07-27 | 2013-02-07 | Brother Ind Ltd | Multi-needle sewing machine |
| CN112354542B (en) * | 2020-11-20 | 2023-07-11 | 浙江工业大学 | V (V) 2 O 5 -CuO/TiO 2 Catalyst, preparation method and application thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE447838C (en) * | 1923-03-06 | 1927-08-08 | Boehringer Sohn Ingelheim | Process for the production of oxo acid esters and oxo acids |
| DE2904775C2 (en) * | 1979-02-08 | 1985-03-21 | Hoechst Ag, 6230 Frankfurt | Process for the preparation of glyoxylic acid esters |
-
1983
- 1983-06-29 DE DE3323372A patent/DE3323372A1/en not_active Withdrawn
-
1984
- 1984-06-26 EP EP84107326A patent/EP0130533B1/en not_active Expired
- 1984-06-26 AT AT84107326T patent/ATE18759T1/en not_active IP Right Cessation
- 1984-06-26 DE DE8484107326T patent/DE3460060D1/en not_active Expired
- 1984-06-28 ZA ZA844935A patent/ZA844935B/en unknown
- 1984-06-28 CA CA000457786A patent/CA1224216A/en not_active Expired
- 1984-06-28 JP JP59132145A patent/JPS6023345A/en active Pending
- 1984-06-28 AU AU30007/84A patent/AU560545B2/en not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| AU3000784A (en) | 1985-01-03 |
| JPS6023345A (en) | 1985-02-05 |
| ATE18759T1 (en) | 1986-04-15 |
| DE3460060D1 (en) | 1986-04-30 |
| EP0130533B1 (en) | 1986-03-26 |
| AU560545B2 (en) | 1987-04-09 |
| DE3323372A1 (en) | 1985-01-10 |
| EP0130533A1 (en) | 1985-01-09 |
| CA1224216A (en) | 1987-07-14 |
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