IT943823B - Procedimento per la preparazione di anidride maleica pura - Google Patents

Procedimento per la preparazione di anidride maleica pura

Info

Publication number
IT943823B
IT943823B IT32223/71A IT3222371A IT943823B IT 943823 B IT943823 B IT 943823B IT 32223/71 A IT32223/71 A IT 32223/71A IT 3222371 A IT3222371 A IT 3222371A IT 943823 B IT943823 B IT 943823B
Authority
IT
Italy
Prior art keywords
dioxide
procedure
preparation
pure maleic
maleic
Prior art date
Application number
IT32223/71A
Other languages
English (en)
Original Assignee
Metallgesellschaft Ag
Veba Chemie 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 Metallgesellschaft Ag, Veba Chemie Ag filed Critical Metallgesellschaft Ag
Application granted granted Critical
Publication of IT943823B publication Critical patent/IT943823B/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)
  • Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
  • Furan Compounds (AREA)
IT32223/71A 1970-12-12 1971-12-10 Procedimento per la preparazione di anidride maleica pura IT943823B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2061335A DE2061335C3 (de) 1970-12-12 1970-12-12 Verfahren zur Gewinnung von reinem Maleinsäureanhydrid

Publications (1)

Publication Number Publication Date
IT943823B true IT943823B (it) 1973-04-10

Family

ID=5790838

Family Applications (1)

Application Number Title Priority Date Filing Date
IT32223/71A IT943823B (it) 1970-12-12 1971-12-10 Procedimento per la preparazione di anidride maleica pura

Country Status (13)

Country Link
US (1) US3865849A (it)
AT (1) AT310137B (it)
AU (1) AU462471B2 (it)
BE (1) BE776577A (it)
BR (1) BR7108221D0 (it)
DE (1) DE2061335C3 (it)
ES (1) ES395783A1 (it)
FR (1) FR2117043A5 (it)
GB (1) GB1354949A (it)
IT (1) IT943823B (it)
NL (1) NL173402B (it)
SE (1) SE396747B (it)
ZA (1) ZA717814B (it)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1424747A (en) * 1973-08-28 1976-02-11 Ucb Sa Method and apparatus for the continuous dehydration of maleic acid
DE2750284A1 (de) * 1977-11-10 1979-05-17 Bayer Ag Verfahren zur gewinnung von maleinsaeureanhydrid aus destillationsrueckstaenden
DE2910385C2 (de) * 1979-03-16 1982-10-21 Davy McKee AG, 6000 Frankfurt Verfahren zur Absaugung von Gasen und Dämpfen im Zuge der Maleinsäureanhydrid-Gewinnung
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
DE10038114A1 (de) * 2000-08-04 2002-02-21 Bat Cigarettenfab Gmbh Verfahren und Vorrichtung zur Konditionierung von zerkleinerten Tabakmaterialien

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3169976A (en) * 1965-02-16 Production of pure ualeic anhydride
US2340490A (en) * 1939-03-27 1944-02-01 Solvay Process Co Dehydration of maleic acid

Also Published As

Publication number Publication date
SE396747B (sv) 1977-10-03
BR7108221D0 (pt) 1973-09-06
US3865849A (en) 1975-02-11
AT310137B (de) 1973-09-25
BE776577A (fr) 1972-04-04
FR2117043A5 (it) 1972-07-21
ZA717814B (en) 1972-10-25
NL7111906A (it) 1972-06-14
ES395783A1 (es) 1974-10-01
DE2061335C3 (de) 1975-07-17
GB1354949A (en) 1974-06-05
NL173402B (nl) 1983-08-16
DE2061335B2 (de) 1974-11-14
AU462471B2 (en) 1975-06-26
AU3651171A (en) 1973-06-14
DE2061335A1 (de) 1972-06-15

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