FR2348208A1 - Procede pour la recuperation de l'anhydride maleique a partir d'eaux industrielles contenant de l'acide maleique - Google Patents

Procede pour la recuperation de l'anhydride maleique a partir d'eaux industrielles contenant de l'acide maleique

Info

Publication number
FR2348208A1
FR2348208A1 FR7710952A FR7710952A FR2348208A1 FR 2348208 A1 FR2348208 A1 FR 2348208A1 FR 7710952 A FR7710952 A FR 7710952A FR 7710952 A FR7710952 A FR 7710952A FR 2348208 A1 FR2348208 A1 FR 2348208A1
Authority
FR
France
Prior art keywords
recovering
waters containing
industrial waters
maleic anhydride
maleic acid
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.)
Withdrawn
Application number
FR7710952A
Other languages
English (en)
French (fr)
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.)
Lonza AG
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 FR2348208A1 publication Critical patent/FR2348208A1/fr
Withdrawn legal-status Critical Current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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
FR7710952A 1976-04-12 1977-04-12 Procede pour la recuperation de l'anhydride maleique a partir d'eaux industrielles contenant de l'acide maleique Withdrawn FR2348208A1 (fr)

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 (1)

Publication Number Publication Date
FR2348208A1 true FR2348208A1 (fr) 1977-11-10

Family

ID=4278958

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7710952A Withdrawn FR2348208A1 (fr) 1976-04-12 1977-04-12 Procede pour la recuperation de l'anhydride maleique a partir d'eaux industrielles contenant de l'acide maleique

Country Status (9)

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

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

Citations (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
FR2062821A5 (it) * 1969-10-01 1971-06-25 Basf Ag

Patent Citations (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
FR2062821A5 (it) * 1969-10-01 1971-06-25 Basf Ag

Also Published As

Publication number Publication date
NL7703962A (nl) 1977-10-14
JPS52125119A (en) 1977-10-20
IT1073186B (it) 1985-04-13
CH617930A5 (en) 1980-06-30
ATA250077A (de) 1979-03-15
DE2632053A1 (de) 1977-10-27
BE853471A (fr) 1977-10-12
AT352695B (de) 1979-10-10
GB1518660A (en) 1978-07-19

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Legal Events

Date Code Title Description
ST Notification of lapse