NL7216855A - - Google Patents
Info
- Publication number
- NL7216855A NL7216855A NL7216855A NL7216855A NL7216855A NL 7216855 A NL7216855 A NL 7216855A NL 7216855 A NL7216855 A NL 7216855A NL 7216855 A NL7216855 A NL 7216855A NL 7216855 A NL7216855 A NL 7216855A
- Authority
- NL
- Netherlands
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)
- Pyrrole Compounds (AREA)
- Furan Compounds (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US00209069A US3818680A (en) | 1971-12-17 | 1971-12-17 | Maleic anhydride recovery method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL7216855A true NL7216855A (https=) | 1973-06-19 |
Family
ID=22777197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL7216855A NL7216855A (https=) | 1971-12-17 | 1972-12-12 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3818680A (https=) |
| JP (1) | JPS4867219A (https=) |
| BE (1) | BE792879A (https=) |
| CA (1) | CA983944A (https=) |
| DE (1) | DE2261044A1 (https=) |
| FR (1) | FR2163495B1 (https=) |
| GB (1) | GB1382739A (https=) |
| IT (1) | IT971933B (https=) |
| NL (1) | NL7216855A (https=) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3948623A (en) * | 1972-08-29 | 1976-04-06 | Chevron Research Company | Anhydride separation |
| US4364748A (en) * | 1977-06-24 | 1982-12-21 | Chevron Research Company | Process for recovering maleic anhydride by condensation |
| US4282013A (en) * | 1977-11-14 | 1981-08-04 | Chevron Research Company | Vacuum pump operation in a maleic anhydride recovery system |
| IT1163975B (it) * | 1979-03-21 | 1987-04-08 | Ftalital Prod Chim Spec | Procedimento per separare in modo continuo anidride maleica da gas di processo |
| DE3504146A1 (de) * | 1985-02-07 | 1986-08-07 | Basf Ag, 6700 Ludwigshafen | Verfahren zur gewinnung von hochreinem maleinsaeureanhydrid aus rohem maleinsaeureanhydrid |
| US4941895A (en) * | 1989-08-23 | 1990-07-17 | Amoco Corporation | Process for the continuous separation of maleic anhydride from process gases |
| 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 |
| DE69800886T2 (de) | 1998-03-23 | 2001-10-11 | Basf Ag | Verfahren zur Herstellung von 1,4-Butandiol, Butyrolacton und Tetrahydrofuran |
| CN101675022B (zh) * | 2007-03-23 | 2013-01-23 | 巴斯夫欧洲公司 | 通过蒸馏获得马来酸酐的方法 |
| KR20110110303A (ko) | 2009-01-12 | 2011-10-06 | 바스프 에스이 | 폴리메틸올의 제조 방법 |
| EP2595974B1 (en) | 2010-12-13 | 2016-03-09 | Conser S.P.A. | An improved process for recovery of maleic anhydride by using organic solvent |
| TW202419445A (zh) * | 2022-09-09 | 2024-05-16 | 美商漢士門石油化學股份有限公司 | 順丁烯二酸酐之回收 |
| TW202545888A (zh) * | 2024-01-26 | 2025-12-01 | 美商漢士門石油化學股份有限公司 | 用於回收順丁烯二酸酐之醯亞胺溶劑 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2294130A (en) * | 1935-12-02 | 1942-08-25 | Solvay Process Co | Manufacture of dicarboxylic acid anhydride |
| US2140140A (en) * | 1936-11-30 | 1938-12-13 | Nat Aniline & Chem Co Inc | Recovery of maleic anhydride |
| US2574644A (en) * | 1948-07-06 | 1951-11-13 | Chempatents Inc | Recovery of polycarboxylic acid anhydrides |
| BE547079A (https=) * | 1955-04-20 | |||
| DE1274107B (de) * | 1965-02-05 | 1968-08-01 | Gelsenberg Benzin Ag | Verfahren zur Reinigung von Pyromellithsaeuredianhydrid |
-
0
- BE BE792879D patent/BE792879A/xx unknown
-
1971
- 1971-12-17 US US00209069A patent/US3818680A/en not_active Expired - Lifetime
-
1972
- 1972-11-30 CA CA157,921A patent/CA983944A/en not_active Expired
- 1972-12-08 FR FR7243872A patent/FR2163495B1/fr not_active Expired
- 1972-12-12 NL NL7216855A patent/NL7216855A/xx not_active Application Discontinuation
- 1972-12-13 GB GB5760072A patent/GB1382739A/en not_active Expired
- 1972-12-14 DE DE2261044A patent/DE2261044A1/de active Pending
- 1972-12-15 JP JP47126062A patent/JPS4867219A/ja active Pending
- 1972-12-15 IT IT32984/72A patent/IT971933B/it active
Also Published As
| Publication number | Publication date |
|---|---|
| GB1382739A (en) | 1975-02-05 |
| CA983944A (en) | 1976-02-17 |
| FR2163495A1 (https=) | 1973-07-27 |
| FR2163495B1 (https=) | 1976-10-29 |
| DE2261044A1 (de) | 1973-06-20 |
| BE792879A (fr) | 1973-03-30 |
| IT971933B (it) | 1974-05-10 |
| JPS4867219A (https=) | 1973-09-13 |
| US3818680A (en) | 1974-06-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| BV | The patent application has lapsed |