GB1019795A - Improved method for hydrogenating benzoic acid - Google Patents

Improved method for hydrogenating benzoic acid

Info

Publication number
GB1019795A
GB1019795A GB2883962A GB2883962A GB1019795A GB 1019795 A GB1019795 A GB 1019795A GB 2883962 A GB2883962 A GB 2883962A GB 2883962 A GB2883962 A GB 2883962A GB 1019795 A GB1019795 A GB 1019795A
Authority
GB
United Kingdom
Prior art keywords
benzoic acid
hexahydrobenzoic acid
acid
improved method
hydrogenating
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
GB2883962A
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.)
SNIA Viscosa SpA
Original Assignee
SNIA Viscosa SpA
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 SNIA Viscosa SpA filed Critical SNIA Viscosa SpA
Publication of GB1019795A publication Critical patent/GB1019795A/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
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/36—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by hydrogenation of carbon-to-carbon unsaturated bonds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Hexahydrobenzoic acid is prepared by hydrogenating benzoic acid in the presence of hexahydrobenzoic acid and a metal hydrogenation catalyst, the benzoic acid and hexahydrobenzoic acid being present in a ratio by weight between 20 : 80 and 80 : 20. The hydrogenation takes place under pressure and at elevated temperatures, pressure and temperature depending on the particular catalyst employed. The metal hydrogenation catalyst may be rhodium on charcoal, palladium or charcoal or kieselguhr, or nickel or cobalt supported on kieselguhr or unsupported. The process may be carried out batchwise, or continuously by recycling part of the hexahydrobenzoic acid produced to constitute the starting mixture.
GB2883962A 1961-08-12 1962-07-26 Improved method for hydrogenating benzoic acid Expired GB1019795A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1541961 1961-08-12

Publications (1)

Publication Number Publication Date
GB1019795A true GB1019795A (en) 1966-02-09

Family

ID=11148004

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2883962A Expired GB1019795A (en) 1961-08-12 1962-07-26 Improved method for hydrogenating benzoic acid

Country Status (1)

Country Link
GB (1) GB1019795A (en)

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