BE767695A - Stabilisation en couleur d'anhydrides d'acides dicarboxyliques purifie - Google Patents

Stabilisation en couleur d'anhydrides d'acides dicarboxyliques purifie

Info

Publication number
BE767695A
BE767695A BE767695A BE767695A BE767695A BE 767695 A BE767695 A BE 767695A BE 767695 A BE767695 A BE 767695A BE 767695 A BE767695 A BE 767695A BE 767695 A BE767695 A BE 767695A
Authority
BE
Belgium
Prior art keywords
purified
dicarboxylic acid
acid anhydrides
color stabilization
stabilization
Prior art date
Application number
BE767695A
Other languages
English (en)
Inventor
R E Stenseth
R J Boyer
R J Sheehan
Original Assignee
Monsanto Co
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 Monsanto Co filed Critical Monsanto Co
Publication of BE767695A publication Critical patent/BE767695A/fr

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
BE767695A 1970-05-27 1971-05-26 Stabilisation en couleur d'anhydrides d'acides dicarboxyliques purifie BE767695A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US4111670A 1970-05-27 1970-05-27

Publications (1)

Publication Number Publication Date
BE767695A true BE767695A (fr) 1971-11-26

Family

ID=21914837

Family Applications (1)

Application Number Title Priority Date Filing Date
BE767695A BE767695A (fr) 1970-05-27 1971-05-26 Stabilisation en couleur d'anhydrides d'acides dicarboxyliques purifie

Country Status (6)

Country Link
JP (1) JPS5314534B1 (fr)
BE (1) BE767695A (fr)
CA (1) CA926870A (fr)
DE (1) DE2126246C2 (fr)
FR (1) FR2093755A5 (fr)
GB (1) GB1331853A (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ID29954A (id) 1999-01-13 2001-10-25 Huntsman Spec Chem Corp Stabilitas anhidrida
US6730810B2 (en) 1999-01-13 2004-05-04 Huntsman Petrochemical Corporation Anhydride stabilization

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2296218A (en) * 1939-10-18 1942-09-15 Hercules Powder Co Ltd Purification of maleic anhydride
US3115477A (en) * 1962-03-29 1963-12-24 Petro Tex Chem Corp Stabilized cyclic anhydride compositions
US3115503A (en) * 1962-09-12 1963-12-24 Petro Tex Chem Corp Stabilized cyclic anhydrides
NL6918957A (fr) * 1968-12-30 1970-07-02
US3622600A (en) * 1969-02-24 1971-11-23 Halcon International Inc Method for preparing color stable maleic anhydride
US3903117A (en) * 1970-05-27 1975-09-02 Monsanto Co Color stabilization of refined maleic acid anhydride

Also Published As

Publication number Publication date
JPS5314534B1 (fr) 1978-05-18
CA926870A (en) 1973-05-22
GB1331853A (en) 1973-09-26
DE2126246C2 (de) 1986-04-24
DE2126246A1 (fr) 1971-12-09
FR2093755A5 (fr) 1972-01-28

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Legal Events

Date Code Title Description
RE20 Patent expired

Owner name: MONSANTO CY

Effective date: 19910526