BE821870A - Procede d'obtention d'anhydride maleique a partir des eaux residuaires de la fabrication d'anhydride phtalique - Google Patents
Procede d'obtention d'anhydride maleique a partir des eaux residuaires de la fabrication d'anhydride phtaliqueInfo
- Publication number
- BE821870A BE821870A BE150224A BE150224A BE821870A BE 821870 A BE821870 A BE 821870A BE 150224 A BE150224 A BE 150224A BE 150224 A BE150224 A BE 150224A BE 821870 A BE821870 A BE 821870A
- Authority
- BE
- Belgium
- Prior art keywords
- manufacturing
- residual water
- anhydride
- maleic anhydride
- phthalic anhydride
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/87—Benzo [c] furans; Hydrogenated benzo [c] furans
- C07D307/89—Benzo [c] furans; Hydrogenated benzo [c] furans with two oxygen atoms directly attached in positions 1 and 3
-
- 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
- C07C51/573—Separation; Purification; Stabilisation; Use of additives
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2356049A DE2356049C3 (de) | 1973-11-09 | 1973-11-09 | Gewinnung von maleinsaeureanhydrid aus den abgasen der phthalsaeureanhydridherstellung |
Publications (1)
Publication Number | Publication Date |
---|---|
BE821870A true BE821870A (fr) | 1975-05-05 |
Family
ID=5897666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
BE150224A BE821870A (fr) | 1973-11-09 | 1974-11-05 | Procede d'obtention d'anhydride maleique a partir des eaux residuaires de la fabrication d'anhydride phtalique |
Country Status (11)
Country | Link |
---|---|
US (1) | US3965126A (fr) |
JP (1) | JPS6041072B2 (fr) |
AT (1) | AT342018B (fr) |
BE (1) | BE821870A (fr) |
CA (1) | CA1032548A (fr) |
DE (1) | DE2356049C3 (fr) |
ES (1) | ES431800A1 (fr) |
FR (1) | FR2250753B1 (fr) |
GB (1) | GB1478525A (fr) |
IT (1) | IT1025465B (fr) |
NL (1) | NL181656C (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2750284A1 (de) * | 1977-11-10 | 1979-05-17 | Bayer Ag | Verfahren zur gewinnung von maleinsaeureanhydrid aus destillationsrueckstaenden |
US4277453A (en) * | 1979-06-04 | 1981-07-07 | United States Steel Corporation | Waste gas purification reactor and method |
DE3504146A1 (de) * | 1985-02-07 | 1986-08-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur gewinnung von hochreinem maleinsaeureanhydrid aus rohem maleinsaeureanhydrid |
DE3800308A1 (de) * | 1988-01-08 | 1989-07-20 | Basf Ag | Verfahren zur gewinnung von farbstabilem maleinsaeureanhydrid |
JP6625634B2 (ja) | 2014-11-03 | 2019-12-25 | ビーエーエスエフ ソシエタス・ヨーロピアBasf Se | 酸化的脱水素化によりn−ブテン類から1,3−ブタジエンを製造するための方法 |
US10384990B2 (en) | 2014-11-14 | 2019-08-20 | Basf Se | Method for producing 1,3-butadiene by dehydrogenating n-butenes, a material flow containing butanes and 2-butenes being provided |
CN111732563A (zh) * | 2020-05-19 | 2020-10-02 | 惠州宇新新材料有限公司 | 一种粗顺酐间歇精馏的工艺方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2683110A (en) * | 1947-04-01 | 1954-07-06 | Stone & Webster Eng Corp | Dehydration of dicarboxylic acids |
US2688622A (en) * | 1951-09-21 | 1954-09-07 | American Cyanamid Co | Process for producing maleic anhydride |
US2696489A (en) * | 1953-06-16 | 1954-12-07 | Monsanto Chemicals | Dehydration of maleic acid |
US2989545A (en) * | 1957-07-29 | 1961-06-20 | American Cyanamid Co | Production of maleic anhydride |
GB869297A (en) * | 1957-09-19 | 1961-05-31 | Yawata Iron & Steel Co | Continuous purification of crude maleic anhydride |
US3261847A (en) * | 1964-06-17 | 1966-07-19 | Chevron Res | Manufacture of maleic anhydride |
FR1524319A (fr) * | 1967-03-30 | 1968-05-10 | Houilleres Bassin Du Nord | Procédé de déshydratation de l'acide maléique en anhydride |
CH488644A (de) * | 1967-12-13 | 1970-04-15 | Luwa Ag | Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Carbonsäureanhydriden aus mehrbasischen Carbonsäuren |
GB1242320A (en) * | 1968-01-30 | 1971-08-11 | Ucb Union Chimiqu Chemische Be | Process for the dehydration of maleic acid |
DE1928207A1 (de) * | 1969-06-03 | 1970-12-17 | Bettermann Dr Dieter | Verfahren zur kontinuierlichen Herstellung von Maleinsaeureanhydrid aus waessrigen Maleinsaeureloesungen |
DE1949491A1 (de) * | 1969-10-01 | 1971-04-08 | Basf Ag | Verfahren zur Herstellung von Maleinsaeureanhydrid |
BE789485R (fr) * | 1971-10-12 | 1973-03-29 | Basf Ag | Procede perfectionne de preparation de l'anhydride |
-
1973
- 1973-11-09 DE DE2356049A patent/DE2356049C3/de not_active Expired
-
1974
- 1974-10-24 CA CA212,195A patent/CA1032548A/fr not_active Expired
- 1974-10-25 US US05/517,887 patent/US3965126A/en not_active Expired - Lifetime
- 1974-11-04 FR FR7436560A patent/FR2250753B1/fr not_active Expired
- 1974-11-05 BE BE150224A patent/BE821870A/fr not_active IP Right Cessation
- 1974-11-05 NL NLAANVRAGE7414427,A patent/NL181656C/xx not_active IP Right Cessation
- 1974-11-06 IT IT29156/74A patent/IT1025465B/it active
- 1974-11-07 JP JP49127626A patent/JPS6041072B2/ja not_active Expired
- 1974-11-08 GB GB48379/74A patent/GB1478525A/en not_active Expired
- 1974-11-08 AT AT897374A patent/AT342018B/de not_active IP Right Cessation
- 1974-11-08 ES ES431800A patent/ES431800A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2356049A1 (de) | 1975-05-22 |
AT342018B (de) | 1978-03-10 |
ES431800A1 (es) | 1977-01-16 |
CA1032548A (fr) | 1978-06-06 |
NL7414427A (nl) | 1975-05-13 |
NL181656C (nl) | 1987-10-01 |
JPS6041072B2 (ja) | 1985-09-13 |
FR2250753A1 (fr) | 1975-06-06 |
ATA897374A (de) | 1976-10-15 |
GB1478525A (en) | 1977-07-06 |
JPS5077315A (fr) | 1975-06-24 |
DE2356049C3 (de) | 1987-10-22 |
DE2356049B2 (de) | 1976-12-23 |
IT1025465B (it) | 1978-08-10 |
FR2250753B1 (fr) | 1978-10-06 |
US3965126A (en) | 1976-06-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
BE815223A (fr) | Procede pour la fabrication d'articles tubulaires | |
BE880291A (fr) | Procede de preparation d'anhydride phtalique | |
BE814281A (fr) | Procede pour la fabrication d'une multiplicite de microplaquettes semiconductrices | |
BE802465A (fr) | Procede pour l'epuration d'acides carboxyliques a insaturation 1,2, | |
BE818360A (fr) | Procede de fabrication d'anhydride maleique | |
RO76789A2 (fr) | Procede pour obtenir un catalyseur utilise a la fabrication d'anhydride maleique | |
FR2250753B1 (fr) | Procede d'obtention d'anhydride maleique a partir des eaux residuaires de la fabrication d'anhydride phtalique | |
BE821422A (fr) | Procede de fabrication d'une electrode convenant a la production d'eau oxygenee | |
BE814624A (fr) | Procede pour la fabrication d'elements de construction | |
RO63497A (fr) | Procede pour la preparation des derives d'acide 7-acylamino dezacetoxyceposporanique | |
BE818434A (fr) | Procede de transformation de l'anhydride maleique en gamma-butyrolactone | |
RO66216A (fr) | Procede pour la production d'energie | |
FR2277779A1 (fr) | Procede pour l'epuration d'eau residuaire formee lors de la fabrication de papier | |
BE812337A (fr) | Procede de production d'engrais biologique par utilisation d'eaux d'egouts | |
RO66060A (fr) | Procede pour la preparation des composes d'acide 7-beta-amino-7-alpha-methoxycephalosporanique | |
BE809699A (fr) | Procede de condensation de l'anhydride phtalique | |
BE798773A (fr) | Procede de production d'un sel hydrosoluble d'un acide carboxyalkoxy-succinique | |
RO72689A (fr) | Procede pour la fabrication du 1,2-dichlorethane par oxychloruration d'ethylene | |
OA04403A (fr) | Procédé pour la purification d'acide phosphorique de voie humide. | |
FR2299306A1 (fr) | Procede de production d'un acide phtalique non noirci a partir du tolualdehyde correspondant | |
BE826491A (fr) | Procede pour la fabrication d'un tube cathodique devant reproduire des images colorees, et tube cathodique fabrique de la sorte | |
RO68425A7 (fr) | Procede pour la preparation d'un ester beta-hidroxy ethylenique nonsature | |
BE821051A (fr) | Procede de production d'anhydride maleique | |
FR2274135A1 (fr) | Procede pour la fabrication d'un tube cathodique | |
FR2300753A1 (fr) | Procede de production d'un acide phtalique non noirci a partir du tolualdehyde correspondant |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RE20 | Patent expired |
Owner name: BASF A.G. Effective date: 19941105 |