GB842025A - Method for the manufacture of methyl acrylate and methyl methacrylate monomers - Google Patents

Method for the manufacture of methyl acrylate and methyl methacrylate monomers

Info

Publication number
GB842025A
GB842025A GB1889857A GB1889857A GB842025A GB 842025 A GB842025 A GB 842025A GB 1889857 A GB1889857 A GB 1889857A GB 1889857 A GB1889857 A GB 1889857A GB 842025 A GB842025 A GB 842025A
Authority
GB
United Kingdom
Prior art keywords
methyl methacrylate
kgs
vapours
dimethyl ether
methyl
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
GB1889857A
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 GB842025A publication Critical patent/GB842025A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D3/00—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping
    • B01D3/34—Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping with one or more auxiliary substances
    • B01D3/40—Extractive distillation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0003—Condensation of vapours; Recovering volatile solvents by condensation by using heat-exchange surfaces for indirect contact between gases or vapours and the cooling medium
    • B01D5/0012—Vertical tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0027—Condensation of vapours; Recovering volatile solvents by condensation by direct contact between vapours or gases and the cooling medium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D5/00—Condensation of vapours; Recovering volatile solvents by condensation
    • B01D5/0078—Condensation of vapours; Recovering volatile solvents by condensation characterised by auxiliary systems or arrangements
    • B01D5/009—Collecting, removing and/or treatment of the condensate
    • 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
    • C07C67/58—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment
    • 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)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Methyl acrylate monomer or methyl methacrylate monomer, free from polymers is obtained by treating directly in a single stage the aseotropic mixture of vapours coming from an esterification column, with that quantity of water or an aqueous solution of an alkali metal or alkaline earth metal salt which will condense the vapours and give an organic phase substantially free from dimethyl ether. In a typical example, the vapours of a methyl methacrylate esterification column were condensed with water containing 0.025% of hydroquinone. The temperature of the uncondensed vapours was 70-72 DEG C. and there were introduced into the distillation apparatus at the rate of 14.9 Kgs of methyl methacrylate, 9.6 Kgs of methanol, 3.8 Kgs of water and 1 Kg of dimethyl ether per hour. After cooling to 20-25 DEG C. 13.1 Kgs were collected per hour of an organic phase having 95.3% by weight of methyl methacrylate free from polymer, and 63 Kgs of an aqueous phase containing 14.6% methanol, 3.9% methyl methacrylate and 0.8% of dimethyl ether. The aqueous solution may contain 270 to 465 grams of calcium chloride per litre.
GB1889857A 1956-06-18 1957-06-14 Method for the manufacture of methyl acrylate and methyl methacrylate monomers Expired GB842025A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR716831A FR1152406A (en) 1956-06-18 1956-06-18 Process for separating azeotropic mixtures and device for its realization and its applications

Publications (1)

Publication Number Publication Date
GB842025A true GB842025A (en) 1960-07-20

Family

ID=34400682

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1889857A Expired GB842025A (en) 1956-06-18 1957-06-14 Method for the manufacture of methyl acrylate and methyl methacrylate monomers

Country Status (5)

Country Link
BE (1) BE558358A (en)
DE (1) DE1179195B (en)
ES (1) ES236109A1 (en)
FR (1) FR1152406A (en)
GB (1) GB842025A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070254A (en) * 1975-06-10 1978-01-24 Nippon Zeon Co., Ltd. Process for preparing a purified methacrylic acid ester

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB905510A (en) * 1958-03-11 1962-09-12 Electro Chimie Metal Improvements in the manufacture of methyl methacrylate

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE852851C (en) * 1948-02-09 1952-10-20 Goodrich Co B F Process for the preparation of alkyl esters ª ‡, ª ‰ -unsaturated monocarboxylic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070254A (en) * 1975-06-10 1978-01-24 Nippon Zeon Co., Ltd. Process for preparing a purified methacrylic acid ester

Also Published As

Publication number Publication date
BE558358A (en) 1960-03-25
ES236109A1 (en) 1957-12-16
DE1179195B (en) 1964-10-08
FR1152406A (en) 1958-02-17

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