GB644920A - Production of dicarboxylic acids or anhydrides thereof - Google Patents

Production of dicarboxylic acids or anhydrides thereof

Info

Publication number
GB644920A
GB644920A GB21729/47A GB2172947A GB644920A GB 644920 A GB644920 A GB 644920A GB 21729/47 A GB21729/47 A GB 21729/47A GB 2172947 A GB2172947 A GB 2172947A GB 644920 A GB644920 A GB 644920A
Authority
GB
United Kingdom
Prior art keywords
anhydride
isomer
oxidized
per cent
isomers
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
GB21729/47A
Other languages
English (en)
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.)
California Research LLC
Original Assignee
California Research LLC
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
Priority claimed from US596645A external-priority patent/US2438369A/en
Application filed by California Research LLC filed Critical California Research LLC
Publication of GB644920A publication Critical patent/GB644920A/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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/255—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting
    • C07C51/265—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of compounds containing six-membered aromatic rings without ring-splitting having alkyl side chains which are oxidised to carboxyl groups

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Furan Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
GB21729/47A 1945-05-30 1947-08-07 Production of dicarboxylic acids or anhydrides thereof Expired GB644920A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US596645A US2438369A (en) 1945-05-30 1945-05-30 Production of dicarboxylic acids or anhydrides thereof
US7263A US2521466A (en) 1945-05-30 1948-02-09 Process for producing phthalic anhydride from ortho-xylene concentrates and naphthalene

Publications (1)

Publication Number Publication Date
GB644920A true GB644920A (en) 1950-10-18

Family

ID=26676744

Family Applications (1)

Application Number Title Priority Date Filing Date
GB21729/47A Expired GB644920A (en) 1945-05-30 1947-08-07 Production of dicarboxylic acids or anhydrides thereof

Country Status (4)

Country Link
US (1) US2521466A (es)
CH (1) CH276716A (es)
FR (1) FR956759A (es)
GB (1) GB644920A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1081878B (de) * 1955-09-22 1960-05-19 Wilhelm Schemuth Verfahren zur Herstellung von Terephthalsaeure durch Oxydation von p-AEthyltoluol
US2925425A (en) * 1957-05-21 1960-02-16 Celanese Corp Oxidation of phthalide and mixtures thereof to phthalic anhydride

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2438369A (en) * 1945-05-30 1948-03-23 Callfornia Rescarch Corp Production of dicarboxylic acids or anhydrides thereof

Also Published As

Publication number Publication date
US2521466A (en) 1950-09-05
FR956759A (es) 1950-02-07
CH276716A (de) 1951-07-31

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JPS5915895B2 (ja) 芳香族カルボン酸の製造方法