GB301523A - Improvements in the production of esters - Google Patents

Improvements in the production of esters

Info

Publication number
GB301523A
GB301523A GB2045227A GB2045227A GB301523A GB 301523 A GB301523 A GB 301523A GB 2045227 A GB2045227 A GB 2045227A GB 2045227 A GB2045227 A GB 2045227A GB 301523 A GB301523 A GB 301523A
Authority
GB
United Kingdom
Prior art keywords
ester
alcohol
boiler
mixture
column
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
GB2045227A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB2045227A priority Critical patent/GB301523A/en
Priority to FR671238D priority patent/FR671238A/en
Publication of GB301523A publication Critical patent/GB301523A/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
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/02—Esters of acyclic saturated monocarboxylic acids having the carboxyl group bound to an acyclic carbon atom or to hydrogen
    • C07C69/12—Acetic acid esters
    • C07C69/14—Acetic acid esters of monohydroxylic compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

301,523. Imperial Chemical Industries, Ltd., and Horsley, G. F. Aug. 3, 1927. Esters. - In a continuous process for producing esters by reaction of an alcohol and an acid, in which the ester is removed in the form of vapour of an azeotropic mixture of ester, alcohol, and water, water and in some cases ester is added to the reacting mixture to facilitate the formation of the azeotropic mixture. A catalyst such as phosphoric acid may be added to the reacting mixture. On condensation, the azeotropic mixture forms into two layers, which are preferably separated at a high temperature. A part of the aqueous layer may, before or after distillation to separate alcohol and ester, be added to the reacting mixture. The ester layer is boiled to separate first a ternary mixture of ester, alcohol and water, and then a binary mixture of ester and alcohol. As applied to a continuous process for forming isobutyl acetate, isobutyl alcohol, acetic acid and water are supplied continuously from vessels 1, 2, 3 to a boiler 5 containing a quantity of alcohol. The vapours pass upwards through a dephlegmator 6 maintained by a jacket 20 at the top at the boiling- point (87‹ C.) of the azeotropic mixture. The escaping vapours pass to a condenser 7 and the condensate separates into two layers in the vessel 8. The upper layer is passed into a column 21 surmounting a boiler 22 and maintained at the top by a jacket 24 at the boiling-point of the azeotropic mixture. Vapours pass to a condenser 23, and the condensate to the vessel 8. A mixture of ester and alcohol collects in the boiler 22, and is passed into a column 25 surmounting a boiler 26, and maintained at the top of the boiling-point (about 107‹ C.) of the binary mixture of alcohol and ester. Pure ester is drawn from the boiler 26, and the vapours of the binary mixture from the top of the column are condensed and returned to the boiler 5. The lower aqueous layer from the vessel 8 is passed into a column 29 surmounting a boiler 30. Water is withdrawn from the boiler and vapours containing alcohol and ester from the top of the column are condensed and returned to the boiler 5. Specifications 195,117 and 234,458 are referred to.
GB2045227A 1927-08-03 1927-08-03 Improvements in the production of esters Expired GB301523A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2045227A GB301523A (en) 1927-08-03 1927-08-03 Improvements in the production of esters
FR671238D FR671238A (en) 1927-08-03 1928-08-02 Process for producing ethers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2045227A GB301523A (en) 1927-08-03 1927-08-03 Improvements in the production of esters

Publications (1)

Publication Number Publication Date
GB301523A true GB301523A (en) 1928-12-03

Family

ID=10146176

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2045227A Expired GB301523A (en) 1927-08-03 1927-08-03 Improvements in the production of esters

Country Status (2)

Country Link
FR (1) FR671238A (en)
GB (1) GB301523A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051683A1 (en) * 2005-11-02 2007-05-10 Symrise Gmbh & Co. Kg Process for preparing c1-c4-alkyl c1-c8-alkanecarboxylates

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007051683A1 (en) * 2005-11-02 2007-05-10 Symrise Gmbh & Co. Kg Process for preparing c1-c4-alkyl c1-c8-alkanecarboxylates
DE102005052257B4 (en) * 2005-11-02 2013-11-14 Symrise Ag Process for the preparation of C1-C8-alkanecarboxylic acid C1-C4-alkyl esters

Also Published As

Publication number Publication date
FR671238A (en) 1929-12-10

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