BE712944A - - Google Patents
Info
- Publication number
- BE712944A BE712944A BE712944DA BE712944A BE 712944 A BE712944 A BE 712944A BE 712944D A BE712944D A BE 712944DA BE 712944 A BE712944 A BE 712944A
- Authority
- BE
- Belgium
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
- C07C51/54—Preparation of carboxylic acid anhydrides
- C07C51/56—Preparation of carboxylic acid anhydrides from organic acids, their salts, their esters or their halides, e.g. by carboxylation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR100799A FR1524319A (fr) | 1967-03-30 | 1967-03-30 | Procédé de déshydratation de l'acide maléique en anhydride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE712944A true BE712944A (en:Method) | 1968-07-31 |
Family
ID=8627815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE712944D BE712944A (en:Method) | 1967-03-30 | 1968-03-29 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3476775A (en:Method) |
| BE (1) | BE712944A (en:Method) |
| DE (1) | DE1768015C3 (en:Method) |
| FR (1) | FR1524319A (en:Method) |
| GB (1) | GB1148280A (en:Method) |
| NL (1) | NL151371B (en:Method) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4823063B1 (en:Method) * | 1969-06-13 | 1973-07-11 | ||
| US3850758A (en) * | 1973-07-02 | 1974-11-26 | Allied Chem | Purification of crude maleic anhydride by treatment with dimethylbenzophenone |
| GB1424747A (en) * | 1973-08-28 | 1976-02-11 | Ucb Sa | Method and apparatus for the continuous dehydration of maleic acid |
| DE2356049C3 (de) * | 1973-11-09 | 1987-10-22 | Basf Ag, 6700 Ludwigshafen | Gewinnung von maleinsaeureanhydrid aus den abgasen der phthalsaeureanhydridherstellung |
| JPS51105997A (en) * | 1975-03-14 | 1976-09-20 | Central Glass Co Ltd | Rinsanekinogenatsujohatsu niokeru futsukabutsuganjujoki no shorihoho |
| US4364748A (en) * | 1977-06-24 | 1982-12-21 | Chevron Research Company | Process for recovering maleic anhydride by condensation |
| FR2484417A1 (fr) * | 1980-06-13 | 1981-12-18 | Charbonnages Ste Chimique | Procede continu de deshydratation de l'acide maleique et installation pour sa mise en oeuvre |
| DE3504146A1 (de) * | 1985-02-07 | 1986-08-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur gewinnung von hochreinem maleinsaeureanhydrid aus rohem maleinsaeureanhydrid |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1901914A (en) * | 1931-05-08 | 1933-03-21 | Monsanto Chemical Works | Manufacture of maleic acid |
| US2670355A (en) * | 1950-02-23 | 1954-02-23 | Barsky | Manufacture of maleic anhydride |
| US2688622A (en) * | 1951-09-21 | 1954-09-07 | American Cyanamid Co | Process for producing maleic anhydride |
| US2770630A (en) * | 1952-03-12 | 1956-11-13 | Allied Chem & Dye Corp | Recovery of maleic anhydride |
| GB864139A (en) * | 1957-10-04 | 1961-03-29 | Columbia Southern Chem Corp | Production of maleic anhydride |
| US3261847A (en) * | 1964-06-17 | 1966-07-19 | Chevron Res | Manufacture of maleic anhydride |
-
1967
- 1967-03-30 FR FR100799A patent/FR1524319A/fr not_active Expired
-
1968
- 1968-03-21 DE DE1768015A patent/DE1768015C3/de not_active Expired
- 1968-03-21 GB GB13803/68A patent/GB1148280A/en not_active Expired
- 1968-03-25 NL NL686804195A patent/NL151371B/xx not_active IP Right Cessation
- 1968-03-27 US US716421A patent/US3476775A/en not_active Expired - Lifetime
- 1968-03-29 BE BE712944D patent/BE712944A/xx not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| NL151371B (nl) | 1976-11-15 |
| DE1768015C3 (de) | 1975-06-05 |
| GB1148280A (en) | 1969-04-10 |
| NL6804195A (en:Method) | 1968-10-01 |
| DE1768015A1 (de) | 1972-06-22 |
| US3476775A (en) | 1969-11-04 |
| FR1524319A (fr) | 1968-05-10 |
| DE1768015B2 (de) | 1974-10-17 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: SOC. CHIMIQUE DES CHARBONNAGES Effective date: 19850329 |