JPS54106419A - Preparation of unsaturated carboxylic acid - Google Patents
Preparation of unsaturated carboxylic acidInfo
- Publication number
- JPS54106419A JPS54106419A JP1133378A JP1133378A JPS54106419A JP S54106419 A JPS54106419 A JP S54106419A JP 1133378 A JP1133378 A JP 1133378A JP 1133378 A JP1133378 A JP 1133378A JP S54106419 A JPS54106419 A JP S54106419A
- Authority
- JP
- Japan
- Prior art keywords
- carboxylic acid
- prepared
- unsaturated carboxylic
- pref
- preparation
- 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
Landscapes
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the title compound in high yield and selectivity, by the gas phase reaction of an unsaturated aldehyde with O2 in the presence of a novel catalyst having excellent catalytic activity and high resistance to the lowering of the activity by contaminants, containing a particular component such as Ga, B, etc.
CONSTITUTION: A mixture of the formula (A is K, Rb, Cs, etc.; B is Ga, B, Zn, Te, or Th; C is V or Cr; a-g are the number of each atom; when d is 12, a-f are 0.05W12, and g is the number of 0 atoms satisfying the valences of the other elements) is prepared by evaporation to dryness, etc., and baked pref. at 300W 550°C for several to several ten hours. An unsaturated carboxylic acid is prepared by contacting an unsaturated aldehyde such as acrolein, methacrolein, etc., and O2 (industrially, air) with the catalsyt prepared above, pref. at 300W450°C for 0.5- 15 sec.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1133378A JPS54106419A (en) | 1978-02-03 | 1978-02-03 | Preparation of unsaturated carboxylic acid |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1133378A JPS54106419A (en) | 1978-02-03 | 1978-02-03 | Preparation of unsaturated carboxylic acid |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS54106419A true JPS54106419A (en) | 1979-08-21 |
JPS6357415B2 JPS6357415B2 (en) | 1988-11-11 |
Family
ID=11775096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1133378A Granted JPS54106419A (en) | 1978-02-03 | 1978-02-03 | Preparation of unsaturated carboxylic acid |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54106419A (en) |
-
1978
- 1978-02-03 JP JP1133378A patent/JPS54106419A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6357415B2 (en) | 1988-11-11 |
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