FR2383160A1 - PROCESS FOR SEPARATING UNSATURATED CARBOXYLIC ACIDS FROM THEIR AQUEOUS SOLUTIONS. - Google Patents

PROCESS FOR SEPARATING UNSATURATED CARBOXYLIC ACIDS FROM THEIR AQUEOUS SOLUTIONS.

Info

Publication number
FR2383160A1
FR2383160A1 FR7807412A FR7807412A FR2383160A1 FR 2383160 A1 FR2383160 A1 FR 2383160A1 FR 7807412 A FR7807412 A FR 7807412A FR 7807412 A FR7807412 A FR 7807412A FR 2383160 A1 FR2383160 A1 FR 2383160A1
Authority
FR
France
Prior art keywords
unsaturated carboxylic
carboxylic acids
aqueous solutions
separating unsaturated
separating
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.)
Pending
Application number
FR7807412A
Other languages
French (fr)
Inventor
Lamberto Roberti
Giancarlo Battiston
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.)
Montedison SpA
Original Assignee
Montedison SpA
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 Montedison SpA filed Critical Montedison SpA
Publication of FR2383160A1 publication Critical patent/FR2383160A1/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/42—Separation; Purification; Stabilisation; Use of additives
    • C07C51/48—Separation; Purification; Stabilisation; Use of additives by liquid-liquid treatment

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

La présente invention a pour objet un procédé de séparation d'acides carboxyliques insaturés à partir de leurs solutions aqueuses, à l'aide d'une technique basée sur l'extraction par des solvants organiques. Elle est caractérisée en ce que, dans le but d'abaisser le temps de séparation des phases organique et aqueuse, on met en contact la solution aqueuse de l'acide carboxylique insaturé avec un mélange formé d'un acétate et d'un composé choisi parmi les hydrocarbures aromatiques, les hydrocarbures aliphatiques et les éthers. Elle se rapporte à un procédé de séparation d'acides carboxyliques insaturés à partir de leurs solutions aqueuses.The present invention relates to a process for separating unsaturated carboxylic acids from their aqueous solutions, using a technique based on extraction with organic solvents. It is characterized in that, in order to reduce the separation time of the organic and aqueous phases, the aqueous solution of the unsaturated carboxylic acid is brought into contact with a mixture formed of an acetate and a chosen compound. from aromatic hydrocarbons, aliphatic hydrocarbons and ethers. It relates to a process for separating unsaturated carboxylic acids from their aqueous solutions.

FR7807412A 1977-03-16 1978-03-15 PROCESS FOR SEPARATING UNSATURATED CARBOXYLIC ACIDS FROM THEIR AQUEOUS SOLUTIONS. Pending FR2383160A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2130377A IT1084028B (en) 1977-03-16 1977-03-16 PROCEDURE FOR THE SEPARATION OF UNSATURATED CARBOXYLIC ACIDS FROM AQUEOUS SOLUTIONS CONTAINING THEM

Publications (1)

Publication Number Publication Date
FR2383160A1 true FR2383160A1 (en) 1978-10-06

Family

ID=11179788

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7807412A Pending FR2383160A1 (en) 1977-03-16 1978-03-15 PROCESS FOR SEPARATING UNSATURATED CARBOXYLIC ACIDS FROM THEIR AQUEOUS SOLUTIONS.

Country Status (6)

Country Link
JP (1) JPS53149922A (en)
DE (1) DE2811229A1 (en)
FR (1) FR2383160A1 (en)
GB (1) GB1598234A (en)
IT (1) IT1084028B (en)
SU (1) SU867296A3 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606663A1 (en) * 1986-11-14 1988-05-20 Charbonnages Ste Chimique PROCESS FOR THE EXTRACTIVE SEPARATION OF A CARBOXYLIC ACID FROM AN AQUEOUS SOLUTION OF SAID ACID

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976043A (en) * 1942-03-25 1951-03-13 Nobel Francaise Soc Improvements in organic acid preparation processes
DE1518585A1 (en) * 1965-08-19 1969-03-13 Basf Ag Process for the extraction of (meth) acrylic acid from aqueous solutions
BE777032A (en) * 1971-12-10 1972-06-21 Sumitomo Chemical Co PROCESS FOR THE EXTRACTION OF ACRYLIC ACID AND / OR METHACRYLIC ACID,
FR2120881A5 (en) * 1970-12-28 1972-08-18 Nippon Zeon Co

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR976043A (en) * 1942-03-25 1951-03-13 Nobel Francaise Soc Improvements in organic acid preparation processes
DE1518585A1 (en) * 1965-08-19 1969-03-13 Basf Ag Process for the extraction of (meth) acrylic acid from aqueous solutions
FR2120881A5 (en) * 1970-12-28 1972-08-18 Nippon Zeon Co
BE777032A (en) * 1971-12-10 1972-06-21 Sumitomo Chemical Co PROCESS FOR THE EXTRACTION OF ACRYLIC ACID AND / OR METHACRYLIC ACID,

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ABJP/70 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2606663A1 (en) * 1986-11-14 1988-05-20 Charbonnages Ste Chimique PROCESS FOR THE EXTRACTIVE SEPARATION OF A CARBOXYLIC ACID FROM AN AQUEOUS SOLUTION OF SAID ACID
EP0271371A1 (en) * 1986-11-14 1988-06-15 Elf Atochem S.A. Process for the extractive separation of a carboxylic acid from an aqueous solution of said acid

Also Published As

Publication number Publication date
IT1084028B (en) 1985-05-25
DE2811229A1 (en) 1978-09-28
GB1598234A (en) 1981-09-16
JPS53149922A (en) 1978-12-27
SU867296A3 (en) 1981-09-23

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