GB540004A - Production of aliphatic dicarboxylic acids - Google Patents

Production of aliphatic dicarboxylic acids

Info

Publication number
GB540004A
GB540004A GB2671/41A GB267141A GB540004A GB 540004 A GB540004 A GB 540004A GB 2671/41 A GB2671/41 A GB 2671/41A GB 267141 A GB267141 A GB 267141A GB 540004 A GB540004 A GB 540004A
Authority
GB
United Kingdom
Prior art keywords
acid
dicarboxylic acids
production
feb
effected
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
GB2671/41A
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.)
Shell Development Co
Original Assignee
Shell Development 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 Shell Development Co filed Critical Shell Development Co
Publication of GB540004A publication Critical patent/GB540004A/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
    • C07C51/27—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with oxides of nitrogen or nitrogen-containing mineral acids
    • 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
    • C07C51/31—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting
    • C07C51/316—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation of cyclic compounds with ring-splitting with oxides of nitrogen or nitrogen-containing mineral acids

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)

Abstract

540,004. Dicarboxylic acids. SHELL DEVELOPMENT CO. Feb. 27, 1941, No. 2671. Convention date, Feb. 29, 1940. [Class 2 (iii)] Aliphatic dicarboxylic acids having the same number of carbon atoms as the starting material are produced by oxidizing cycloaliphatic hydrocarbons or cyclic ketones with nitric acid of 4-24 per cent. strength the concentration of the acid being maintained within this range by adding stronger acid during the process, which is effected at 50-130‹C. A large number of alicyclic hydrocarbons and cyclic ketones are mentioned. An oxidation catalyst is not necessary, but may be employed. The process may be continuous, and may be effected at atmospheric or raised pressure, for instance up to 10 atmospheres. The dicarboxylic acid may be separated from the reaction mixture by concentration and cooling for crystallization. Examples describe the oxidation of cyclopentene and cyclopentanone with the production of glutaric acid.
GB2671/41A 1940-02-29 1941-02-27 Production of aliphatic dicarboxylic acids Expired GB540004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US540004X 1940-02-29

Publications (1)

Publication Number Publication Date
GB540004A true GB540004A (en) 1941-10-01

Family

ID=21988043

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2671/41A Expired GB540004A (en) 1940-02-29 1941-02-27 Production of aliphatic dicarboxylic acids

Country Status (1)

Country Link
GB (1) GB540004A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980720A (en) * 1957-09-04 1961-04-18 Gulf Research Development Co Purification process for obtaining dibasic acids free of metal impurities

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2980720A (en) * 1957-09-04 1961-04-18 Gulf Research Development Co Purification process for obtaining dibasic acids free of metal impurities

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