CA926870A - Color stabilization of refined dicarboxylic acid anhydrides - Google Patents

Color stabilization of refined dicarboxylic acid anhydrides

Info

Publication number
CA926870A
CA926870A CA113988A CA113988A CA926870A CA 926870 A CA926870 A CA 926870A CA 113988 A CA113988 A CA 113988A CA 113988 A CA113988 A CA 113988A CA 926870 A CA926870 A CA 926870A
Authority
CA
Canada
Prior art keywords
dicarboxylic acid
acid anhydrides
color stabilization
refined
refined dicarboxylic
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
CA113988A
Other languages
English (en)
Other versions
CA113988S (en
Inventor
J. Sheehan Richard
J. Boyer Ronald
E. Stenseth Raymond
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.)
Monsanto Co
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
Application granted granted Critical
Publication of CA926870A publication Critical patent/CA926870A/en
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)
CA113988A 1970-05-27 1971-05-26 Color stabilization of refined dicarboxylic acid anhydrides Expired CA926870A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
CA926870A true CA926870A (en) 1973-05-22

Family

ID=21914837

Family Applications (1)

Application Number Title Priority Date Filing Date
CA113988A Expired CA926870A (en) 1970-05-27 1971-05-26 Color stabilization of refined dicarboxylic acid anhydrides

Country Status (6)

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

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6730810B2 (en) 1999-01-13 2004-05-04 Huntsman Petrochemical Corporation Anhydride stabilization
WO2000041991A1 (en) 1999-01-13 2000-07-20 Huntsman Petrochemical Corporation Anhydride stabilization

Family Cites Families (7)

* 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
DE1088049B (de) * 1956-03-24 1960-09-01 Basf Ag Verfahren zur Herstellung von 3, 3'-Thioaetherdicarbonsaeuren bzw. deren Estern
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 (enrdf_load_stackoverflow) * 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
FR2093755A5 (enrdf_load_stackoverflow) 1972-01-28
DE2126246C2 (de) 1986-04-24
BE767695A (fr) 1971-11-26
GB1331853A (en) 1973-09-26
JPS5314534B1 (enrdf_load_stackoverflow) 1978-05-18
DE2126246A1 (enrdf_load_stackoverflow) 1971-12-09

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