GB337053A - Improvements in or relating to the manufacture of aliphatic acids and their esters - Google Patents

Improvements in or relating to the manufacture of aliphatic acids and their esters

Info

Publication number
GB337053A
GB337053A GB2312729A GB2312729A GB337053A GB 337053 A GB337053 A GB 337053A GB 2312729 A GB2312729 A GB 2312729A GB 2312729 A GB2312729 A GB 2312729A GB 337053 A GB337053 A GB 337053A
Authority
GB
United Kingdom
Prior art keywords
acid
esters
phosphoric acid
methanol
aliphatic acids
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
GB2312729A
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.)
Acordis UK Ltd
Original Assignee
British Celanese Ltd
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 British Celanese Ltd filed Critical British Celanese Ltd
Priority to GB2312729A priority Critical patent/GB337053A/en
Publication of GB337053A publication Critical patent/GB337053A/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
    • C07C51/10—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide
    • C07C51/12—Preparation of carboxylic acids or their salts, halides or anhydrides by reaction with carbon monoxide on an oxygen-containing group in organic compounds, e.g. alcohols
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/36—Preparation of carboxylic acid esters by reaction with carbon monoxide or formates

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

337,053. British Celanese, Ltd., and Bader, W. July 27, 1929. Acetic and other aliphatic acids and their esters; esters of phosphoric acid; ethers.- Aliphatic acids and their esters, for example, acetic acid and methyl acetate, are obtained by mixing liquid methanol or other aliphatic alcohol with one or more acid catalysts, namely, inorganic acids or inorganic acids containing organic groups, or their acid salts, and submitting the mixture to the action of carbon monoxide at 200‹-450‹ C. and at pressures up to 300 atmospheres. In a preferred method of carrying out the invention, methanol, preferably anhydrous, from a vessel 5 is mixed with phosphoric acid in a steam jacketed chamber 1 at 60‹-90‹ C. to promote, complete or partial esterification, and then passed to a jet 11. Carbon monoxide and steam are introduced into a preheater 12 by pipes 13 and 14 respectively, and pass to a gold- or graphite-lined reaction tube 2, heated to 300‹- 400‹ C., carrying with them methanol from the jet. The reaction products pass to a separator 15, where phosphoric acid separates and is returned to mixing chamber 1. Volatile products are condensed in a condenser 17, and remaining vapours are absorbed in charcoal in a tower 19. The gas is then passed through a pump 3 for recirculation. Esters present in the reaction products may be saponified by means of water in the presence of sulphuric acid, or, preferably, phosphoric acid at 150‹-300‹ C. to produce an acid and an ether. Specifications 283,989 and 284,582 are referred to.
GB2312729A 1929-07-27 1929-07-27 Improvements in or relating to the manufacture of aliphatic acids and their esters Expired GB337053A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2312729A GB337053A (en) 1929-07-27 1929-07-27 Improvements in or relating to the manufacture of aliphatic acids and their esters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2312729A GB337053A (en) 1929-07-27 1929-07-27 Improvements in or relating to the manufacture of aliphatic acids and their esters

Publications (1)

Publication Number Publication Date
GB337053A true GB337053A (en) 1930-10-27

Family

ID=10190559

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2312729A Expired GB337053A (en) 1929-07-27 1929-07-27 Improvements in or relating to the manufacture of aliphatic acids and their esters

Country Status (1)

Country Link
GB (1) GB337053A (en)

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