IT1014415B - Purificazione di anidride maleica grezza - Google Patents

Purificazione di anidride maleica grezza

Info

Publication number
IT1014415B
IT1014415B IT69049/74A IT6904974A IT1014415B IT 1014415 B IT1014415 B IT 1014415B IT 69049/74 A IT69049/74 A IT 69049/74A IT 6904974 A IT6904974 A IT 6904974A IT 1014415 B IT1014415 B IT 1014415B
Authority
IT
Italy
Prior art keywords
purification
dioxide
crude maleic
maleic
crude
Prior art date
Application number
IT69049/74A
Other languages
English (en)
Original Assignee
Allied Chem
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 Allied Chem filed Critical Allied Chem
Application granted granted Critical
Publication of IT1014415B publication Critical patent/IT1014415B/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

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)
IT69049/74A 1973-07-02 1974-06-28 Purificazione di anidride maleica grezza IT1014415B (it)

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
IT1014415B true IT1014415B (it) 1977-04-20

Family

ID=23483706

Family Applications (1)

Application Number Title Priority Date Filing Date
IT69049/74A IT1014415B (it) 1973-07-02 1974-06-28 Purificazione di anidride maleica grezza

Country Status (9)

Country Link
US (1) US3850758A (it)
JP (1) JPS5716108B2 (it)
BE (1) BE816849A (it)
CA (1) CA1014565A (it)
DE (1) DE2430520C2 (it)
FR (1) FR2235909B1 (it)
GB (1) GB1407672A (it)
IT (1) IT1014415B (it)
NL (1) NL7408586A (it)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2264812B1 (it) * 1974-03-18 1978-10-20 Chevron Res
US4071540A (en) * 1976-07-08 1978-01-31 Chevron Research Company Anhydride separation process
JPS5496212U (it) * 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
DE69800886T2 (de) 1998-03-23 2001-10-11 Basf Ag Verfahren zur Herstellung von 1,4-Butandiol, Butyrolacton und Tetrahydrofuran
EP3657281B1 (en) * 2018-11-26 2022-11-30 ASML Netherlands B.V. Control strategy evaluation tool for a semiconductor manufacturing process and its user interface

Family Cites Families (5)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
DE2430520C2 (de) 1983-05-19
NL7408586A (nl) 1975-01-06
CA1014565A (en) 1977-07-26
JPS5040521A (it) 1975-04-14
BE816849A (fr) 1974-10-16
JPS5716108B2 (it) 1982-04-02
US3850758A (en) 1974-11-26
FR2235909B1 (it) 1977-10-14
FR2235909A1 (it) 1975-01-31
DE2430520A1 (de) 1975-01-30
GB1407672A (en) 1975-09-24

Similar Documents

Publication Publication Date Title
IT1006444B (it) Purificazione di gas di rifiuto
IT1020610B (it) Purificazione di gas
NL7409321A (nl) Nieuwe derivaten van 2-benzamido-5-nitro-thia-
AR203626A1 (es) Sintesis de nuevos acidos heterociclico-indol-3-ii-acetic
IT1018904B (it) Miscele di polioli
SE414316B (sv) Forfarande for avsvavling av stalsmeltor
IT1026525B (it) Depurazione di gas
IT1014415B (it) Purificazione di anidride maleica grezza
FI55335C (fi) Foerfarande foer framstaellning av terapeutiskt anvaendbara 7-fluor-substituerade fenotiaziner
IT1018863B (it) Costruzione di bacinella
NO137750C (no) Fremgangsmaate til rensning av titantetraklorid
IT1006207B (it) Iniziatori di fotopolimerizzazione
IT1021149B (it) Costruzione di tavola per tirassegno
IT1019309B (it) Procedimento per la purificazione di correnti gassose
IT1015724B (it) Procedimento di idrodeparaffina zione catalitica
BR7403668D0 (pt) Purificacao de alcoil-aminas secundarias
IT977015B (it) Apparato di purificazione
BE810151A (fr) Purification du mercure
BE816543A (fr) Preparation des 2-aryl-as-triazine-3
IT1025211B (it) Disposizione di racla
IT1014375B (it) Dispositivo multiplessatore di segnali numerici
IT985808B (it) Purificazione di ossido di pro pilene mediante distillazione
IT955710B (it) Purificazione di adiponitrile
IT977152B (it) Procedimento di purificazione di i nitroantrachinone
IT1012957B (it) Deidroformilazione di acetossibu tirraldeidi