ES395784A1 - Un procedimiento para la obtencion de anhidrido maleico pu-ro. - Google Patents

Un procedimiento para la obtencion de anhidrido maleico pu-ro.

Info

Publication number
ES395784A1
ES395784A1 ES395784A ES395784A ES395784A1 ES 395784 A1 ES395784 A1 ES 395784A1 ES 395784 A ES395784 A ES 395784A ES 395784 A ES395784 A ES 395784A ES 395784 A1 ES395784 A1 ES 395784A1
Authority
ES
Spain
Prior art keywords
entrainer
maleic anhydride
crude mixture
mixture containing
containing same
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES395784A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Veba Oel AG
GEA Group AG
Original Assignee
Veba Oel AG
Metallgesellschaft AG
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 Veba Oel AG, Metallgesellschaft AG filed Critical Veba Oel AG
Publication of ES395784A1 publication Critical patent/ES395784A1/es
Expired legal-status Critical Current

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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
ES395784A 1970-12-12 1971-10-06 Un procedimiento para la obtencion de anhidrido maleico pu-ro. Expired ES395784A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2061336A DE2061336C3 (de) 1970-12-12 1970-12-12 Verfahren zur Gewinnung von reinem Maleinsäureanhydrid

Publications (1)

Publication Number Publication Date
ES395784A1 true ES395784A1 (es) 1974-10-01

Family

ID=5790839

Family Applications (1)

Application Number Title Priority Date Filing Date
ES395784A Expired ES395784A1 (es) 1970-12-12 1971-10-06 Un procedimiento para la obtencion de anhidrido maleico pu-ro.

Country Status (13)

Country Link
US (1) US3873577A (es)
AT (1) AT310138B (es)
AU (1) AU469653B2 (es)
BE (1) BE776578A (es)
BR (1) BR7108220D0 (es)
DE (1) DE2061336C3 (es)
ES (1) ES395784A1 (es)
FR (1) FR2117044A5 (es)
GB (1) GB1354950A (es)
IT (1) IT943822B (es)
NL (1) NL7111905A (es)
SE (1) SE400969B (es)
ZA (1) ZA717813B (es)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2750284A1 (de) * 1977-11-10 1979-05-17 Bayer Ag Verfahren zur gewinnung von maleinsaeureanhydrid aus destillationsrueckstaenden
US5929255A (en) * 1996-07-11 1999-07-27 Bp Amoco Corporation Process for coproducing fumaric acid and maleic anhydride
US5972174A (en) * 1998-01-13 1999-10-26 Huntsman Petrochemical Corporation Process for the purification of maleic anhydride

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2340490A (en) * 1939-03-27 1944-02-01 Solvay Process Co Dehydration of maleic acid
DE1443826A1 (de) * 1962-03-01 1969-09-18 Hoechst Ag Verfahren zur kontinuierlichen Wasserabspaltung aus organischen Verbindungen
GB1242320A (en) * 1968-01-30 1971-08-11 Ucb Union Chimiqu Chemische Be Process for the dehydration of maleic acid

Also Published As

Publication number Publication date
IT943822B (it) 1973-04-10
ZA717813B (en) 1972-08-30
AU469653B2 (en) 1976-02-19
BR7108220D0 (pt) 1973-07-19
GB1354950A (en) 1974-06-05
AT310138B (de) 1973-09-25
DE2061336A1 (es) 1972-06-15
FR2117044A5 (es) 1972-07-21
BE776578A (fr) 1972-04-04
SE400969B (sv) 1978-04-17
DE2061336B2 (es) 1974-10-03
DE2061336C3 (de) 1975-05-22
US3873577A (en) 1975-03-25
NL7111905A (es) 1972-06-14
AU3651271A (en) 1973-06-14

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