HUT41727A - Process for production of alifatic diesthers of succin acid from malein acid anhydrid - Google Patents
Process for production of alifatic diesthers of succin acid from malein acid anhydridInfo
- Publication number
- HUT41727A HUT41727A HU445685A HU445685A HUT41727A HU T41727 A HUT41727 A HU T41727A HU 445685 A HU445685 A HU 445685A HU 445685 A HU445685 A HU 445685A HU T41727 A HUT41727 A HU T41727A
- Authority
- HU
- Hungary
- Prior art keywords
- acid
- iii
- diesthers
- alifatic
- production
- Prior art date
Links
Landscapes
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Aliphatic diesters of succinic acids are prepd. by a heterogeneous catalytic reaction, between maleic-acid-anhydride (I), aliphatic alcohols of not more than 6C (II) and hydrogen (III). Catalyst consists of platinum gp. metal/s on inert support. (I) is dissolvent in a relevant succinic-acid-diester or in a water and alcohol free reaction product. This and a separate stream of (II) is brought into contact with the catalyst together with pure (III) or a mixt. of (III) (more than 50%) and inert nitrogen at 140-280 deg.C and at a pressure at which the alcohol is maintained in a liq. state.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU445685A HU196583B (en) | 1985-11-22 | 1985-11-22 | Process for producing butanedioic acid aliphatic diesters from maleic anhydride |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU445685A HU196583B (en) | 1985-11-22 | 1985-11-22 | Process for producing butanedioic acid aliphatic diesters from maleic anhydride |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT41727A true HUT41727A (en) | 1987-05-28 |
HU196583B HU196583B (en) | 1988-12-28 |
Family
ID=10968018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU445685A HU196583B (en) | 1985-11-22 | 1985-11-22 | Process for producing butanedioic acid aliphatic diesters from maleic anhydride |
Country Status (1)
Country | Link |
---|---|
HU (1) | HU196583B (en) |
-
1985
- 1985-11-22 HU HU445685A patent/HU196583B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
HU196583B (en) | 1988-12-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HU90 | Patent valid on 900628 | ||
HPC4 | Succession in title of patentee |
Owner name: NITROIL VEGYIPARI TERMELOE-FEJLESZTOE RT., HU |
|
HMM4 | Cancellation of final prot. due to non-payment of fee |