BE816849A - Procede de purification d'anhydride maleique brut et nouveau produit ainsi obtenu - Google Patents
Procede de purification d'anhydride maleique brut et nouveau produit ainsi obtenuInfo
- Publication number
- BE816849A BE816849A BE145877A BE145877A BE816849A BE 816849 A BE816849 A BE 816849A BE 145877 A BE145877 A BE 145877A BE 145877 A BE145877 A BE 145877A BE 816849 A BE816849 A BE 816849A
- Authority
- BE
- Belgium
- Prior art keywords
- maleic anhydride
- new product
- purifying crude
- crude maleic
- purifying
- 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
- C07C51/54—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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Furan Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00376099A US3850758A (en) | 1973-07-02 | 1973-07-02 | Purification of crude maleic anhydride by treatment with dimethylbenzophenone |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE816849A true BE816849A (fr) | 1974-10-16 |
Family
ID=23483706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE145877A BE816849A (fr) | 1973-07-02 | 1974-06-25 | Procede de purification d'anhydride maleique brut et nouveau produit ainsi obtenu |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3850758A (xx) |
| JP (1) | JPS5716108B2 (xx) |
| BE (1) | BE816849A (xx) |
| CA (1) | CA1014565A (xx) |
| DE (1) | DE2430520C2 (xx) |
| FR (1) | FR2235909B1 (xx) |
| GB (1) | GB1407672A (xx) |
| IT (1) | IT1014415B (xx) |
| NL (1) | NL7408586A (xx) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2264812B1 (xx) * | 1974-03-18 | 1978-10-20 | Chevron Res | |
| US4071540A (en) * | 1976-07-08 | 1978-01-31 | Chevron Research Company | Anhydride separation process |
| JPS5496212U (xx) * | 1977-12-20 | 1979-07-07 | ||
| IT1163975B (it) * | 1979-03-21 | 1987-04-08 | Ftalital Prod Chim Spec | Procedimento per separare in modo continuo anidride maleica da gas di processo |
| US5670660A (en) * | 1994-12-06 | 1997-09-23 | Cook Composites And Polymers Co. | Process for collecting airborne anhydrides |
| ZA973972B (en) * | 1996-05-14 | 1998-03-23 | Kvaerner Process Tech Ltd | A process for the production of at least one C4 compound selected from butane-1,4-diol, gamma-butyrolactone and tetrahydrofuran. |
| ZA973971B (en) * | 1996-05-15 | 1998-03-23 | Kvaerner Process Tech Ltd | A process for the production of at least one C4 compound selected from butane-1,4-diol, gamma-butyrolactone and tetrahydrofuran. |
| GB9724004D0 (en) | 1997-11-13 | 1998-10-21 | Kvaerner Process Tech Ltd | Process |
| GB9724195D0 (en) | 1997-11-14 | 1998-01-14 | Kvaerner Process Tech Ltd | Process |
| US5972174A (en) * | 1998-01-13 | 1999-10-26 | Huntsman Petrochemical Corporation | Process for the purification of maleic anhydride |
| EP0962438B1 (en) | 1998-03-23 | 2001-06-06 | Basf Aktiengesellschaft | Process for the preparation of 1,4-butanediol, butyrolactone and tetrahydrofuran. |
| US11796978B2 (en) * | 2018-11-26 | 2023-10-24 | Asml Netherlands B.V. | Method for determining root causes of events of a semiconductor manufacturing process and for monitoring a semiconductor manufacturing process |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2959600A (en) * | 1960-11-08 | Purification of maleic anhydride | ||
| US2893924A (en) * | 1956-04-17 | 1959-07-07 | Saint Gobain | Separation and purification of anhydrides of organic diacids |
| US3135669A (en) * | 1961-10-16 | 1964-06-02 | Badger Co | Purification of maleic anhydride by flash vaporization and two stage fractional distillation |
| FR1317308A (fr) * | 1961-12-28 | 1963-02-08 | Electro Chimie Soc D | Procédé de production d'anhydride maléique |
| FR1524319A (fr) * | 1967-03-30 | 1968-05-10 | Houilleres Bassin Du Nord | Procédé de déshydratation de l'acide maléique en anhydride |
-
1973
- 1973-07-02 US US00376099A patent/US3850758A/en not_active Expired - Lifetime
-
1974
- 1974-04-05 CA CA196,928A patent/CA1014565A/en not_active Expired
- 1974-06-17 GB GB2680074A patent/GB1407672A/en not_active Expired
- 1974-06-21 FR FR7421751A patent/FR2235909B1/fr not_active Expired
- 1974-06-25 DE DE2430520A patent/DE2430520C2/de not_active Expired
- 1974-06-25 BE BE145877A patent/BE816849A/xx not_active IP Right Cessation
- 1974-06-26 NL NL7408586A patent/NL7408586A/xx not_active Application Discontinuation
- 1974-06-28 IT IT69049/74A patent/IT1014415B/it active
- 1974-06-29 JP JP7388574A patent/JPS5716108B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2430520C2 (de) | 1983-05-19 |
| FR2235909A1 (xx) | 1975-01-31 |
| NL7408586A (nl) | 1975-01-06 |
| JPS5040521A (xx) | 1975-04-14 |
| GB1407672A (en) | 1975-09-24 |
| FR2235909B1 (xx) | 1977-10-14 |
| JPS5716108B2 (xx) | 1982-04-02 |
| DE2430520A1 (de) | 1975-01-30 |
| US3850758A (en) | 1974-11-26 |
| CA1014565A (en) | 1977-07-26 |
| IT1014415B (it) | 1977-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| RE | Patent lapsed |
Owner name: ALLIED CORP. Effective date: 19880630 |