AT352695B - Verfahren zur gewinnung von maleinsaeureanhydrid - Google Patents

Verfahren zur gewinnung von maleinsaeureanhydrid

Info

Publication number
AT352695B
AT352695B AT250077A AT250077A AT352695B AT 352695 B AT352695 B AT 352695B AT 250077 A AT250077 A AT 250077A AT 250077 A AT250077 A AT 250077A AT 352695 B AT352695 B AT 352695B
Authority
AT
Austria
Prior art keywords
obtainment
maleic acid
acid anhydride
anhydride
maleic
Prior art date
Application number
AT250077A
Other languages
English (en)
Other versions
ATA250077A (de
Original Assignee
Lonza 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 Lonza Ag filed Critical Lonza Ag
Publication of ATA250077A publication Critical patent/ATA250077A/de
Application granted granted Critical
Publication of AT352695B publication Critical patent/AT352695B/de

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
AT250077A 1976-04-12 1977-04-08 Verfahren zur gewinnung von maleinsaeureanhydrid AT352695B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH459276A CH617930A5 (en) 1976-04-12 1976-04-12 Method for preparing maleic anhydride.

Publications (2)

Publication Number Publication Date
ATA250077A ATA250077A (de) 1979-03-15
AT352695B true AT352695B (de) 1979-10-10

Family

ID=4278958

Family Applications (1)

Application Number Title Priority Date Filing Date
AT250077A AT352695B (de) 1976-04-12 1977-04-08 Verfahren zur gewinnung von maleinsaeureanhydrid

Country Status (9)

Country Link
JP (1) JPS52125119A (de)
AT (1) AT352695B (de)
BE (1) BE853471A (de)
CH (1) CH617930A5 (de)
DE (1) DE2632053A1 (de)
FR (1) FR2348208A1 (de)
GB (1) GB1518660A (de)
IT (1) IT1073186B (de)
NL (1) NL7703962A (de)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1253698B (it) * 1990-05-31 1995-08-23 Sisas Spa Procedimento per il recupero di anidride maleica da miscele di reazione

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2411567A (en) * 1943-08-23 1946-11-26 British Celanese Manufacture of carboxylic acid anhydrides
US2689863A (en) * 1948-10-07 1954-09-21 Union Carbide & Carbon Corp Ester-anhydrides and the production thereof
BE756951A (fr) * 1969-10-01 1971-04-01 Basf Ag Procede perfectionne de preparation de l'anhydride maleique

Also Published As

Publication number Publication date
CH617930A5 (en) 1980-06-30
IT1073186B (it) 1985-04-13
DE2632053A1 (de) 1977-10-27
JPS52125119A (en) 1977-10-20
NL7703962A (nl) 1977-10-14
ATA250077A (de) 1979-03-15
BE853471A (fr) 1977-10-12
FR2348208A1 (fr) 1977-11-10
GB1518660A (en) 1978-07-19

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
ELJ Ceased due to non-payment of the annual fee