GB957679A - Process for the esterification of carboxylic acids - Google Patents

Process for the esterification of carboxylic acids

Info

Publication number
GB957679A
GB957679A GB3089660A GB3089660A GB957679A GB 957679 A GB957679 A GB 957679A GB 3089660 A GB3089660 A GB 3089660A GB 3089660 A GB3089660 A GB 3089660A GB 957679 A GB957679 A GB 957679A
Authority
GB
United Kingdom
Prior art keywords
acid
melt
dimethyl
anhydride
ester
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
GB3089660A
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.)
Ruhrchemie AG
Original Assignee
Ruhrchemie AG
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 Ruhrchemie AG filed Critical Ruhrchemie AG
Publication of GB957679A publication Critical patent/GB957679A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/08—Preparation of carboxylic acid esters by reacting carboxylic acids or symmetrical anhydrides with the hydroxy or O-metal group of organic compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

Esters are prepared by passing the vapour of an alcohol into a molten mixture of a mono-carboxylic or dicarboxylic acid or an anhydride of such an acid which acid or anhydride is normally solid and has a melting point below 200 DEG C. with an esterification catalyst, e.g. potassium hydrogen sulphate, and drawing off the ester in vapourous form through a distillation column by maintaining a sub-atmospheric pressure above the melt, the melt being maintained at a sub-atmospheric pressure. The alcohol is passed through a conduit heated by being immersed in the acidic melt in such a way that the emerging vapour passes through the melt. When a dicarboxylic acid is used the diester passes through the distillation column, while the mono-ester condenses and is returned to the reaction zone. The ester is condensed and the water produced in the reaction is continually drawn off by the vacuum pump. Examples are given using specified apparatus wherein methyl laurate, dimethyl adipate, diethyl adipate, dimethyl succinate, dimethyl glutarate and dimethyl phthalate are prepared from the appropriate alcohol and acid or acid anhydride.
GB3089660A 1959-09-09 1960-09-07 Process for the esterification of carboxylic acids Expired GB957679A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DER26342A DE1171897B (en) 1959-09-09 1959-09-09 Process for the continuous esterification of saturated aliphatic mono- or dicarboxylic acids with methanol or AEthanol

Publications (1)

Publication Number Publication Date
GB957679A true GB957679A (en) 1964-05-13

Family

ID=7402158

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3089660A Expired GB957679A (en) 1959-09-09 1960-09-07 Process for the esterification of carboxylic acids

Country Status (3)

Country Link
DE (1) DE1171897B (en)
GB (1) GB957679A (en)
IT (1) IT637015A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148897A (en) * 1983-11-03 1985-06-05 Inst Penyelidikan Minyak Kelap Catalytic esterification of carboxylic acid/glyceride mixtures
US5495033A (en) * 1994-08-29 1996-02-27 Cenex/Land O'lakes Agronomy Company Methylated herbicidal adjuvant
US6382133B1 (en) 2000-09-21 2002-05-07 Agriliance Llc Method of treating manure
EP2215193A1 (en) * 2007-11-30 2010-08-11 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Canada Vapour phase esterification of free fatty acids
CN109748790A (en) * 2017-11-01 2019-05-14 中国石油化工股份有限公司 The method for producing dimethyl adipate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB465983A (en) * 1935-05-27 1937-05-20 Continental Oil Co Improvements in and relating to the formation of esters

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2148897A (en) * 1983-11-03 1985-06-05 Inst Penyelidikan Minyak Kelap Catalytic esterification of carboxylic acid/glyceride mixtures
US5495033A (en) * 1994-08-29 1996-02-27 Cenex/Land O'lakes Agronomy Company Methylated herbicidal adjuvant
US5624883A (en) * 1994-08-29 1997-04-29 Cenex/Land O'lakes Agronomy Company Methylated herbicidal adjuvant
US6382133B1 (en) 2000-09-21 2002-05-07 Agriliance Llc Method of treating manure
EP2215193A1 (en) * 2007-11-30 2010-08-11 Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Canada Vapour phase esterification of free fatty acids
EP2215193A4 (en) * 2007-11-30 2012-08-29 Ca Minister Natural Resources Vapour phase esterification of free fatty acids
CN109748790A (en) * 2017-11-01 2019-05-14 中国石油化工股份有限公司 The method for producing dimethyl adipate
CN109748790B (en) * 2017-11-01 2021-08-03 中国石油化工股份有限公司 Method for producing dimethyl adipate

Also Published As

Publication number Publication date
DE1171897B (en) 1964-06-11
IT637015A (en)

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