HUT40606A - Process for preparing fumaric acid from maleic acid-containing by-products - Google Patents
Process for preparing fumaric acid from maleic acid-containing by-productsInfo
- Publication number
- HUT40606A HUT40606A HU43185A HU43185A HUT40606A HU T40606 A HUT40606 A HU T40606A HU 43185 A HU43185 A HU 43185A HU 43185 A HU43185 A HU 43185A HU T40606 A HUT40606 A HU T40606A
- Authority
- HU
- Hungary
- Prior art keywords
- products
- acid
- maleic acid
- fumaric acid
- preparing fumaric
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
- C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
- C07C51/353—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by isomerisation; by change of size of the carbon skeleton
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU43185A HU194150B (en) | 1985-02-05 | 1985-02-05 | Process for production of fumar acid from secondary products containing malein acid |
GB08719162A GB2207915A (en) | 1985-02-05 | 1987-08-13 | Preparation of pure fumaric acid |
DE19873727553 DE3727553A1 (en) | 1985-02-05 | 1987-08-18 | METHOD FOR THE PRODUCTION OF PURE FUMAR ACID FROM BY-PRODUCTS CONTAINING MALEIC ACID |
FR8711936A FR2619809B1 (en) | 1985-02-05 | 1987-08-26 | PROCESS FOR THE PREPARATION OF PURE FUMARIC ACID |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
HU43185A HU194150B (en) | 1985-02-05 | 1985-02-05 | Process for production of fumar acid from secondary products containing malein acid |
Publications (2)
Publication Number | Publication Date |
---|---|
HUT40606A true HUT40606A (en) | 1987-01-28 |
HU194150B HU194150B (en) | 1988-01-28 |
Family
ID=10949570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
HU43185A HU194150B (en) | 1985-02-05 | 1985-02-05 | Process for production of fumar acid from secondary products containing malein acid |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE3727553A1 (en) |
FR (1) | FR2619809B1 (en) |
GB (1) | GB2207915A (en) |
HU (1) | HU194150B (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5939296A (en) * | 1996-08-09 | 1999-08-17 | Nippon Shokubai Co., Ltd. | Process for producing L-aspartic acid |
US8389790B2 (en) | 2011-02-01 | 2013-03-05 | Divi's Laboratories, Ltd. | Process for isomerisation of lycopene in the presence of thiourea |
CN103204773B (en) * | 2013-04-18 | 2015-08-05 | 湘潭大学 | A kind of toxilic acid cis-trans isomerization prepares the method for fumaric acid |
CN103668312B (en) * | 2013-12-10 | 2016-06-29 | 淮北师范大学 | A kind of maleic acid cis-trans isomerization prepares the electrochemical process of fumaric acid |
CN106631765A (en) * | 2016-12-05 | 2017-05-10 | 广东榕泰实业股份有限公司 | Process for producing fumaric acid by using phthalic anhydride waste water |
WO2022120615A1 (en) * | 2020-12-09 | 2022-06-16 | 安徽雪郎生物科技股份有限公司 | Production process for fumaric acid |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2843629A (en) * | 1953-06-23 | 1958-07-15 | Montclair Res Corp | Recovery of fumaric acid |
US2843628A (en) * | 1953-06-23 | 1958-07-15 | Montclair Res Corp | Fumaric acid isomerization |
-
1985
- 1985-02-05 HU HU43185A patent/HU194150B/en not_active IP Right Cessation
-
1987
- 1987-08-13 GB GB08719162A patent/GB2207915A/en not_active Withdrawn
- 1987-08-18 DE DE19873727553 patent/DE3727553A1/en not_active Withdrawn
- 1987-08-26 FR FR8711936A patent/FR2619809B1/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
HU194150B (en) | 1988-01-28 |
GB2207915A (en) | 1989-02-15 |
GB8719162D0 (en) | 1987-09-23 |
DE3727553A1 (en) | 1989-03-02 |
FR2619809B1 (en) | 1989-11-17 |
FR2619809A1 (en) | 1989-03-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
HU90 | Patent valid on 900628 | ||
HPC4 | Succession in title of patentee |
Owner name: NITROKEMIA 2000 IPARI ES VAGYONKEZELOE RT., HU |
|
HMM4 | Cancellation of final prot. due to non-payment of fee |