IT1002027B - Metodo per il recupero di anidride maleica usando mezzo non acquoso - Google Patents
Metodo per il recupero di anidride maleica usando mezzo non acquosoInfo
- Publication number
- IT1002027B IT1002027B IT31819/73A IT3181973A IT1002027B IT 1002027 B IT1002027 B IT 1002027B IT 31819/73 A IT31819/73 A IT 31819/73A IT 3181973 A IT3181973 A IT 3181973A IT 1002027 B IT1002027 B IT 1002027B
- Authority
- IT
- Italy
- Prior art keywords
- baleic
- dioxide
- recovery
- aqueous medium
- aqueous
- 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)
- Furan Compounds (AREA)
- Treating Waste Gases (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US310320A US3891680A (en) | 1972-11-29 | 1972-11-29 | Maleic anhydride recovery using nonaqueous medium |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1002027B true IT1002027B (it) | 1976-05-20 |
Family
ID=23201980
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT31819/73A IT1002027B (it) | 1972-11-29 | 1973-11-29 | Metodo per il recupero di anidride maleica usando mezzo non acquoso |
Country Status (9)
Country | Link |
---|---|
US (1) | US3891680A (it) |
JP (1) | JPS4986319A (it) |
BE (1) | BE806942A (it) |
CA (1) | CA981686A (it) |
DE (1) | DE2356815A1 (it) |
FR (1) | FR2207902B1 (it) |
GB (1) | GB1417810A (it) |
IT (1) | IT1002027B (it) |
NL (1) | NL7316209A (it) |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1456101A (en) * | 1974-07-12 | 1976-11-17 | Ucb Sa | Process for dehydrating aqueous solutions of maleic acid to maleic anhydride |
US4259246A (en) * | 1975-12-31 | 1981-03-31 | Chevron Research Company | Maleic anhydride production with recycle treatment |
US4071540A (en) * | 1976-07-08 | 1978-01-31 | Chevron Research Company | Anhydride separation process |
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 |
JPH01231922A (ja) * | 1987-11-20 | 1989-09-18 | Sandoz Ag | 溶媒組成物及びそれを使用する方法 |
IT1253698B (it) * | 1990-05-31 | 1995-08-23 | Sisas Spa | Procedimento per il recupero di anidride maleica da miscele di reazione |
IT1273980B (it) * | 1993-02-08 | 1997-07-14 | Sisas Spa | Procedimento ed impianto per la purificazione di anidride maleica grezza recuperata da miscele di reazione gassose |
IT1269970B (it) * | 1994-06-30 | 1997-04-16 | Sisas Spa | Procedimento di riciclo di gas esausti nel processo di conversione di n-butano ad anidride maleica |
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 |
DE69800886T2 (de) | 1998-03-23 | 2001-10-11 | Basf Ag | Verfahren zur Herstellung von 1,4-Butandiol, Butyrolacton und Tetrahydrofuran |
FR2792551B1 (fr) * | 1999-04-20 | 2001-06-08 | Atochem Elf Sa | Procede de sulfuration de catalyseurs d'hydrotraitement |
NL1015961C2 (nl) * | 2000-08-18 | 2002-02-19 | Akzo Nobel Nv | Toepassing van een adsorbens voor de verwijdering van vloeibare, gasvormige en/of opgeloste bestanddelen uit een processtroom. |
US8901321B2 (en) | 2010-12-13 | 2014-12-02 | Conser Spa | Process for recovery of maleic anhydride by using organic solvent |
WO2012154479A1 (en) | 2011-05-11 | 2012-11-15 | Huntsman Petrochemical Llc | Improved solvent for recovery of maleic anhydride from a gas stream |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574644A (en) * | 1948-07-06 | 1951-11-13 | Chempatents Inc | Recovery of polycarboxylic acid anhydrides |
-
1972
- 1972-11-29 US US310320A patent/US3891680A/en not_active Expired - Lifetime
-
1973
- 1973-10-11 CA CA183,139A patent/CA981686A/en not_active Expired
- 1973-11-05 BE BE137433A patent/BE806942A/xx unknown
- 1973-11-14 DE DE2356815A patent/DE2356815A1/de active Pending
- 1973-11-21 FR FR7341440A patent/FR2207902B1/fr not_active Expired
- 1973-11-22 GB GB5437173A patent/GB1417810A/en not_active Expired
- 1973-11-27 NL NL7316209A patent/NL7316209A/xx unknown
- 1973-11-28 JP JP48133340A patent/JPS4986319A/ja active Pending
- 1973-11-29 IT IT31819/73A patent/IT1002027B/it active
Also Published As
Publication number | Publication date |
---|---|
GB1417810A (en) | 1975-12-17 |
CA981686A (en) | 1976-01-13 |
FR2207902A1 (it) | 1974-06-21 |
NL7316209A (it) | 1974-05-31 |
JPS4986319A (it) | 1974-08-19 |
FR2207902B1 (it) | 1976-11-19 |
DE2356815A1 (de) | 1974-05-30 |
US3891680A (en) | 1975-06-24 |
BE806942A (fr) | 1974-03-01 |
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