IT971933B - Metodo per il ricupero di anidride maleica da miscele calde di vapori o gas - Google Patents

Metodo per il ricupero di anidride maleica da miscele calde di vapori o gas

Info

Publication number
IT971933B
IT971933B IT32984/72A IT3298472A IT971933B IT 971933 B IT971933 B IT 971933B IT 32984/72 A IT32984/72 A IT 32984/72A IT 3298472 A IT3298472 A IT 3298472A IT 971933 B IT971933 B IT 971933B
Authority
IT
Italy
Prior art keywords
baleic
vapors
dioxide
recovery
gas
Prior art date
Application number
IT32984/72A
Other languages
English (en)
Original Assignee
Chevron Res
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chevron Res filed Critical Chevron Res
Application granted granted Critical
Publication of IT971933B publication Critical patent/IT971933B/it

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
IT32984/72A 1971-12-17 1972-12-15 Metodo per il ricupero di anidride maleica da miscele calde di vapori o gas IT971933B (it)

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
IT971933B true IT971933B (it) 1974-05-10

Family

ID=22777197

Family Applications (1)

Application Number Title Priority Date Filing Date
IT32984/72A IT971933B (it) 1971-12-17 1972-12-15 Metodo per il ricupero di anidride maleica da miscele calde di vapori o gas

Country Status (9)

Country Link
US (1) US3818680A (it)
JP (1) JPS4867219A (it)
BE (1) BE792879A (it)
CA (1) CA983944A (it)
DE (1) DE2261044A1 (it)
FR (1) FR2163495B1 (it)
GB (1) GB1382739A (it)
IT (1) IT971933B (it)
NL (1) NL7216855A (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
ES2158645T3 (es) 1998-03-23 2001-09-01 Basf Ag Procedimiento para la preparacion de 1,4-butanodiol, butirolactona y tetrahidrofurano.
US8461356B2 (en) 2007-03-23 2013-06-11 Basf Se Process for obtaining maleic anhydride by distillation
JP5566402B2 (ja) 2009-01-12 2014-08-06 ビーエーエスエフ ソシエタス・ヨーロピア ポリメチロールの製造法
ES2572735T3 (es) 2010-12-13 2016-06-02 Conser S.P.A. Proceso mejorado para recuperar anhíbrido maleico con un disolvente orgánico
WO2024054352A1 (en) * 2022-09-09 2024-03-14 Huntsman Petrochemical Llc Recovery of maleic anhydride

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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
NL98195C (it) * 1955-04-20
DE1274107B (de) * 1965-02-05 1968-08-01 Gelsenberg Benzin Ag Verfahren zur Reinigung von Pyromellithsaeuredianhydrid

Also Published As

Publication number Publication date
GB1382739A (en) 1975-02-05
BE792879A (fr) 1973-03-30
FR2163495A1 (it) 1973-07-27
FR2163495B1 (it) 1976-10-29
CA983944A (en) 1976-02-17
JPS4867219A (it) 1973-09-13
DE2261044A1 (de) 1973-06-20
US3818680A (en) 1974-06-25
NL7216855A (it) 1973-06-19

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