JPS56142238A - Hydrogenation of butenediol carboxylic ester - Google Patents
Hydrogenation of butenediol carboxylic esterInfo
- Publication number
- JPS56142238A JPS56142238A JP4526580A JP4526580A JPS56142238A JP S56142238 A JPS56142238 A JP S56142238A JP 4526580 A JP4526580 A JP 4526580A JP 4526580 A JP4526580 A JP 4526580A JP S56142238 A JPS56142238 A JP S56142238A
- Authority
- JP
- Japan
- Prior art keywords
- reaction mixture
- carboxylic ester
- butenediol
- catalyst
- conducted
- 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
Abstract
PURPOSE: The hydrogentation of the titled compound in the presence of a catalyst of palladium with a certain concentration is conducted by stirring the reaction mixture through the reaction mixture circulation process in which the amounts of the reaction mixture fed and the gas taken in by a jet pump are adjusted to constant coditions, thus prohibiting the formation of by-products with the product given in high yield.
CONSTITUTION: When the catalytic hydrogenation of a carboxylic ester of butenediol (abbreviated to unsaturated ester hereinafter) is conducted in liqud phase to produce a carboxylic ester of butanediol, a catalyst containing palladium is used and the concentration of the pallaium metal is adjusted to 1×10-6W1×10-1wt% based on the unsaturated ester. Further, a jet pump is operated under such conditions that the relationship between the amount of the reaction mixture L(m3) and the flow rate of the gas taken in G(m3/hr) becomes in the range of 100≤G/L ≤3,000 to effect stirring according to the reaction mixture circulation. This process can reduces the amount of the catalyst used and enables the production cost to be lowered.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526580A JPS56142238A (en) | 1980-04-08 | 1980-04-08 | Hydrogenation of butenediol carboxylic ester |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4526580A JPS56142238A (en) | 1980-04-08 | 1980-04-08 | Hydrogenation of butenediol carboxylic ester |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56142238A true JPS56142238A (en) | 1981-11-06 |
JPS6316376B2 JPS6316376B2 (en) | 1988-04-08 |
Family
ID=12714459
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4526580A Granted JPS56142238A (en) | 1980-04-08 | 1980-04-08 | Hydrogenation of butenediol carboxylic ester |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56142238A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06157411A (en) * | 1992-11-26 | 1994-06-03 | Mitsubishi Kasei Corp | Method for hydrogenating diacetoxybutene |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50129515A (en) * | 1974-03-28 | 1975-10-13 |
-
1980
- 1980-04-08 JP JP4526580A patent/JPS56142238A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS50129515A (en) * | 1974-03-28 | 1975-10-13 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06157411A (en) * | 1992-11-26 | 1994-06-03 | Mitsubishi Kasei Corp | Method for hydrogenating diacetoxybutene |
Also Published As
Publication number | Publication date |
---|---|
JPS6316376B2 (en) | 1988-04-08 |
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