GB893730A - Purification of methylacetate by distillation - Google Patents

Purification of methylacetate by distillation

Info

Publication number
GB893730A
GB893730A GB3091959A GB3091959A GB893730A GB 893730 A GB893730 A GB 893730A GB 3091959 A GB3091959 A GB 3091959A GB 3091959 A GB3091959 A GB 3091959A GB 893730 A GB893730 A GB 893730A
Authority
GB
United Kingdom
Prior art keywords
column
pipe
vapours
acetaldehyde
withdrawn
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
GB3091959A
Inventor
Kensuke Okuma
Kikuji Uragami
Michijiro Akabushi
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.)
Kurashiki Rayon Co Ltd
Original Assignee
Kurashiki Rayon Co 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 Kurashiki Rayon Co Ltd filed Critical Kurashiki Rayon Co Ltd
Priority to GB3091959A priority Critical patent/GB893730A/en
Publication of GB893730A publication Critical patent/GB893730A/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
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

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

Abstract

<PICT:0893730/III/1> A mixture comprising methyl acetate, methanol and acetaldehyde, such as may result from the interaction of polyvinyl acetate with methanol, is passed through an inlet 2 to an extractive distillation column 1 to which water is supplied through an inlet 3. Aqueous methanol is withdrawn at the base of the column, and a mixture containing methyl acetate and acetaldehyde vapours passes from the top of the column to a partial condenser 4 and thence to a separator 41. Condensate from the separator 41 is returned by pipe 11 to the top of column 1, and the vapours from separator 41 are passed by pipe 5 to a second partial condenser 6, the liquid and vapours from which are both passed to the lower part of a fractionation column 7. Methyl acetate of reduced acetaldehyde content is withdrawn from the base of column 7 through pipe 10, and the vapours from the top of the column pass to a condenser 8, from which condensate is returned to the top of the column by pipe 12. Acetaldehyde vapour is withdrawn through pipe 9. Dimensions and operational details of a suitable apparatus are given.
GB3091959A 1959-09-10 1959-09-10 Purification of methylacetate by distillation Expired GB893730A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3091959A GB893730A (en) 1959-09-10 1959-09-10 Purification of methylacetate by distillation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3091959A GB893730A (en) 1959-09-10 1959-09-10 Purification of methylacetate by distillation

Publications (1)

Publication Number Publication Date
GB893730A true GB893730A (en) 1962-04-11

Family

ID=10315130

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3091959A Expired GB893730A (en) 1959-09-10 1959-09-10 Purification of methylacetate by distillation

Country Status (1)

Country Link
GB (1) GB893730A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008985A1 (en) * 1997-08-15 1999-02-25 Arco Chemical Technology, L.P. Purification of a methanol stream
WO2009045253A1 (en) * 2007-10-01 2009-04-09 Lyondell Chemical Technology, L.P. Methyl acetate purification and carbonylation
WO2009058182A1 (en) * 2007-10-30 2009-05-07 Celanese International Corporation Acetaldehyde removal from methyl acetate by distillation at elevated pressure
CN106588573A (en) * 2016-12-28 2017-04-26 宁夏大地循环发展股份有限公司 Absorbing and condensing system of alcoholysis volatile gaseous

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999008985A1 (en) * 1997-08-15 1999-02-25 Arco Chemical Technology, L.P. Purification of a methanol stream
WO2009045253A1 (en) * 2007-10-01 2009-04-09 Lyondell Chemical Technology, L.P. Methyl acetate purification and carbonylation
WO2009058182A1 (en) * 2007-10-30 2009-05-07 Celanese International Corporation Acetaldehyde removal from methyl acetate by distillation at elevated pressure
US8062482B2 (en) * 2007-10-30 2011-11-22 Celanese International Corporation Acetaldehyde removal from methyl acetate by distillation at elevated pressure
RU2470007C2 (en) * 2007-10-30 2012-12-20 Селаниз Интернэшнл Корпорейшн Removing acetaldehyde from methyl acetate by high-pressure rectification
AU2008319447B2 (en) * 2007-10-30 2013-10-10 Celanese International Corporation Acetaldehyde removal from methyl acetate by distillation at elevated pressure
CN106588573A (en) * 2016-12-28 2017-04-26 宁夏大地循环发展股份有限公司 Absorbing and condensing system of alcoholysis volatile gaseous
CN106588573B (en) * 2016-12-28 2017-12-01 宁夏大地循环发展股份有限公司 Alcoholysis volatilization gas absorption condensation system

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