GB802518A - Counterflow method of manufacturing methyl methacrylate and acrylate - Google Patents

Counterflow method of manufacturing methyl methacrylate and acrylate

Info

Publication number
GB802518A
GB802518A GB17681/56A GB1768156A GB802518A GB 802518 A GB802518 A GB 802518A GB 17681/56 A GB17681/56 A GB 17681/56A GB 1768156 A GB1768156 A GB 1768156A GB 802518 A GB802518 A GB 802518A
Authority
GB
United Kingdom
Prior art keywords
methanol
dimethyl ether
acrylate
methyl methacrylate
methyl acrylate
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
GB17681/56A
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.)
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Original Assignee
Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
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 Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU filed Critical Societe dElectro Chimie dElectro Metallurgie et des Acieries Electriques Dugine SA SECEMAU
Publication of GB802518A publication Critical patent/GB802518A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C69/00—Esters of carboxylic acids; Esters of carbonic or haloformic acids
    • C07C69/52—Esters of acyclic unsaturated carboxylic acids having the esterified carboxyl group bound to an acyclic carbon atom
    • C07C69/533—Monocarboxylic acid esters having only one carbon-to-carbon double bond
    • C07C69/54—Acrylic acid esters; Methacrylic acid esters

Landscapes

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

Abstract

Dimethyl ether formed as an undesirable byproduct during the manufacture of methyl acrylate or methacrylate by esterification of the corresponding acid and/or amide with methanol in a strongly acid medium is retained within the reaction system by scrubbing the reaction gases, after condensing the bulk of the ester, with at least one of the reactants to absorb the dimethyl ether which is re-cycled in the absorbed condition. This inhibits the continued formation of ether and permits a higher esterification temperature. Apparatus are described for reacting the sulphuric acid mixture resulting from the hydrolysis of acrylonitrile with methanol to give methyl acrylate, and absorbing the dimethyl ether formed in the inflowing methanol or sulphuric acid mixture.
GB17681/56A 1955-06-13 1956-06-07 Counterflow method of manufacturing methyl methacrylate and acrylate Expired GB802518A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR802518X 1955-06-13

Publications (1)

Publication Number Publication Date
GB802518A true GB802518A (en) 1958-10-08

Family

ID=9248401

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17681/56A Expired GB802518A (en) 1955-06-13 1956-06-07 Counterflow method of manufacturing methyl methacrylate and acrylate

Country Status (1)

Country Link
GB (1) GB802518A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288596B (en) * 1962-01-30 1969-02-06 Knapsack Ag Process for the production of acrylic acid n-butyl ester from aqueous acrylic acid and n-butanol

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1288596B (en) * 1962-01-30 1969-02-06 Knapsack Ag Process for the production of acrylic acid n-butyl ester from aqueous acrylic acid and n-butanol

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