JPS57146731A - Preparation of acetaldehyde - Google Patents
Preparation of acetaldehydeInfo
- Publication number
- JPS57146731A JPS57146731A JP56034269A JP3426981A JPS57146731A JP S57146731 A JPS57146731 A JP S57146731A JP 56034269 A JP56034269 A JP 56034269A JP 3426981 A JP3426981 A JP 3426981A JP S57146731 A JPS57146731 A JP S57146731A
- Authority
- JP
- Japan
- Prior art keywords
- acetic anhydride
- hydrogen
- reaction
- acetic acid
- acetaldehyde
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Abstract
PURPOSE: To prolong the catalytic life in reacting acetic anhydride with hydrogen in the vapor phase in the presence of a catalyst of Pd, Pt or Rh supported on a carrier to obtain acetaldehyde, by feeding a gas for the reaction accompanied with a specific amount of acetic acid.
CONSTITUTION: Acetic acid is reacted with hydrogen in the vapor phase in the presence of a catalyst of Pd, Pt or Rh supported on a carrier, e.g. alumina or silica, to give acetaldehyde. In the process, a gas for the reaction is accompained with 3mol% or more, preferably 10W100mol%, based on the acetic anhydride, acetic acid to maintain the catalystic activity life stably for a long time. The content of the acetic anhydride in the raw gaseous mixture is 5W40%, and the molar ratio between the acetic anhydride and the hydrogen is (1/20)W(5/1), the reaction is carried out preferably at 100W200°C.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56034269A JPS57146731A (en) | 1981-03-09 | 1981-03-09 | Preparation of acetaldehyde |
CA000376493A CA1226585A (en) | 1980-05-19 | 1981-04-29 | Process for producing acetaldehyde |
US06/261,805 US4351964A (en) | 1980-05-19 | 1981-05-08 | Process for producing acetaldehyde |
EP81103751A EP0040414B1 (en) | 1980-05-19 | 1981-05-15 | Process for producing acetaldehyde |
DE8181103751T DE3160416D1 (en) | 1980-05-19 | 1981-05-15 | Process for producing acetaldehyde |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56034269A JPS57146731A (en) | 1981-03-09 | 1981-03-09 | Preparation of acetaldehyde |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57146731A true JPS57146731A (en) | 1982-09-10 |
JPS6260376B2 JPS6260376B2 (en) | 1987-12-16 |
Family
ID=12409436
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56034269A Granted JPS57146731A (en) | 1980-05-19 | 1981-03-09 | Preparation of acetaldehyde |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57146731A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63152340A (en) * | 1986-08-14 | 1988-06-24 | Idemitsu Kosan Co Ltd | Production of carboxylic acid ester |
JP4553077B2 (en) * | 1999-02-10 | 2010-09-29 | 三菱瓦斯化学株式会社 | Process for producing carboxylic anhydride and aldehydes |
-
1981
- 1981-03-09 JP JP56034269A patent/JPS57146731A/en active Granted
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63152340A (en) * | 1986-08-14 | 1988-06-24 | Idemitsu Kosan Co Ltd | Production of carboxylic acid ester |
JPH0437061B2 (en) * | 1986-08-14 | 1992-06-18 | Idemitsu Kosan Co | |
JP4553077B2 (en) * | 1999-02-10 | 2010-09-29 | 三菱瓦斯化学株式会社 | Process for producing carboxylic anhydride and aldehydes |
Also Published As
Publication number | Publication date |
---|---|
JPS6260376B2 (en) | 1987-12-16 |
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