GB851342A - Improvements in the purification of acrylic esters - Google Patents

Improvements in the purification of acrylic esters

Info

Publication number
GB851342A
GB851342A GB1485859A GB1485859A GB851342A GB 851342 A GB851342 A GB 851342A GB 1485859 A GB1485859 A GB 1485859A GB 1485859 A GB1485859 A GB 1485859A GB 851342 A GB851342 A GB 851342A
Authority
GB
United Kingdom
Prior art keywords
ester
water
alcohol
separated
aqueous phase
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
GB1485859A
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.)
Union Carbide Corp
Original Assignee
Union Carbide Corp
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 Union Carbide Corp filed Critical Union Carbide Corp
Publication of GB851342A publication Critical patent/GB851342A/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

Alkyl esters of acrylic acids are separated from their mixtures with one or more alcohols which are completely soluble in water by contacting the mixture with water or an aqueous solution of a salt and with a liquid hydrocarbon which is completely miscible with the ester to be separated, essentially insoluble in water and has a lower affinity than water for the alcohol from which the ester is to be separated to form an organic phase containing the ester and an aqueous phase containing the alcohol, and separating the phases. The alcohol and ester can be recovered from their respective phases by distillation. The hydrocarbon preferably has a boiling point above that of the ester. Aliphatic saturated hydrocarbons are preferred but unsaturated and also aromatic hydrocarbons are also specified. Salt concentrations within the range of about 3 to 25% by weight in the aqueous phase are mentioned. It is preferred to maintain the aqueous phase as the continuous phase. The process may be operated continuously.
GB1485859A 1958-05-02 1959-05-01 Improvements in the purification of acrylic esters Expired GB851342A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US1220771XA 1958-05-02 1958-05-02

Publications (1)

Publication Number Publication Date
GB851342A true GB851342A (en) 1960-10-12

Family

ID=22400453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1485859A Expired GB851342A (en) 1958-05-02 1959-05-01 Improvements in the purification of acrylic esters

Country Status (2)

Country Link
FR (1) FR1220771A (en)
GB (1) GB851342A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254622B (en) * 1961-09-21 1967-11-23 Knapsack Ag Process for the separation of acrylic acid n-butyl ester from its mixtures
DE1254623B (en) * 1961-12-16 1967-11-23 Knapsack Ag Process for the separation of acrylic acid n-butyl ester from its mixture with n-butanol

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1296623B (en) * 1963-05-09 1969-06-04 Wacker Chemie Gbmh Process for the continuous or batchwise separation of azeotropic mixtures of esters, aliphatic, saturated and unsaturated carboxylic acids
US3846488A (en) * 1972-01-06 1974-11-05 Rohm & Haas Accelerating separation rate of two liquid phases in the extraction of aqueous acrylic acid
KR960000850A (en) * 1994-06-06 1996-01-25 사토 아키오 Continuous production method of methyl methacrylate

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1254622B (en) * 1961-09-21 1967-11-23 Knapsack Ag Process for the separation of acrylic acid n-butyl ester from its mixtures
DE1254623B (en) * 1961-12-16 1967-11-23 Knapsack Ag Process for the separation of acrylic acid n-butyl ester from its mixture with n-butanol

Also Published As

Publication number Publication date
FR1220771A (en) 1960-05-27

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