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NO874744D0 - PROCEDURE FOR SEPARATION OF CARBON ACIDS. - Google Patents

PROCEDURE FOR SEPARATION OF CARBON ACIDS.

Info

Publication number
NO874744D0
NO874744D0 NO874744A NO874744A NO874744D0 NO 874744 D0 NO874744 D0 NO 874744D0 NO 874744 A NO874744 A NO 874744A NO 874744 A NO874744 A NO 874744A NO 874744 D0 NO874744 D0 NO 874744D0
Authority
NO
Norway
Prior art keywords
acid
separation
solvent system
procedure
extraction
Prior art date
Application number
NO874744A
Other languages
Norwegian (no)
Other versions
NO170756B (en
NO874744L (en
NO170756C (en
Inventor
Yves Samuel
Original Assignee
Charbonnages Ste Chimique
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 Charbonnages Ste Chimique filed Critical Charbonnages Ste Chimique
Publication of NO874744D0 publication Critical patent/NO874744D0/en
Publication of NO874744L publication Critical patent/NO874744L/en
Publication of NO170756B publication Critical patent/NO170756B/en
Publication of NO170756C publication Critical patent/NO170756C/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C57/00—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms
    • C07C57/02—Unsaturated compounds having carboxyl groups bound to acyclic carbon atoms with only carbon-to-carbon double bonds as unsaturation
    • C07C57/03—Monocarboxylic acids
    • C07C57/04—Acrylic acid; Methacrylic acid
    • 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)
  • Extraction Or Liquid Replacement (AREA)

Abstract

Separation of at least one acid chosen from isobutyric acid and methacrylic acid by extraction from an aqueous solution of the said acid by employing an organic solvent system containing toluene, followed by a distillation during which the solvent system is recovered and returned entirely to the extraction. The solvent system is a mixture of toluene and of at least one saturated organic ester which is poorly soluble in water and which has a boiling temperature of between 98 DEG C and 130 DEG C. Application to the purification of methacrylic acid.
NO874744A 1986-11-14 1987-11-13 PROCEDURE FOR SEPARATION OF CARBOXYLIC ACIDS NO170756C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8615840A FR2606663B1 (en) 1986-11-14 1986-11-14 PROCESS FOR THE EXTRACTIVE SEPARATION OF A CARBOXYLIC ACID FROM AN AQUEOUS SOLUTION OF THE SAME

Publications (4)

Publication Number Publication Date
NO874744D0 true NO874744D0 (en) 1987-11-13
NO874744L NO874744L (en) 1988-05-16
NO170756B NO170756B (en) 1992-08-24
NO170756C NO170756C (en) 1992-12-02

Family

ID=9340806

Family Applications (1)

Application Number Title Priority Date Filing Date
NO874744A NO170756C (en) 1986-11-14 1987-11-13 PROCEDURE FOR SEPARATION OF CARBOXYLIC ACIDS

Country Status (10)

Country Link
EP (1) EP0271371B1 (en)
JP (1) JPS63135350A (en)
KR (1) KR960006664B1 (en)
AT (1) ATE67477T1 (en)
CA (1) CA1274847A (en)
DE (1) DE3773145D1 (en)
ES (1) ES2026932T3 (en)
FR (1) FR2606663B1 (en)
GR (1) GR3003364T3 (en)
NO (1) NO170756C (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5877345A (en) * 1997-02-07 1999-03-02 Rohm And Haas Company Process for producing butyl acrylate
US7897814B2 (en) 2005-12-26 2011-03-01 Mitsubishi Rayon Co., Ltd. Method for extracting methacrylic acid
CN113149832A (en) * 2021-05-08 2021-07-23 青岛科技大学 Method for separating n-butyric acid and water by liquid-liquid extraction-heterogeneous azeotropic distillation

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR716448A (en) * 1930-05-13 1931-12-21 Organic acid concentration process
IT1084028B (en) * 1977-03-16 1985-05-25 Montedison Spa PROCEDURE FOR THE SEPARATION OF UNSATURATED CARBOXYLIC ACIDS FROM AQUEOUS SOLUTIONS CONTAINING THEM

Also Published As

Publication number Publication date
NO170756B (en) 1992-08-24
NO874744L (en) 1988-05-16
NO170756C (en) 1992-12-02
FR2606663A1 (en) 1988-05-20
KR880005953A (en) 1988-07-21
FR2606663B1 (en) 1989-02-10
JPS63135350A (en) 1988-06-07
KR960006664B1 (en) 1996-05-22
EP0271371B1 (en) 1991-09-18
CA1274847A (en) 1990-10-02
DE3773145D1 (en) 1991-10-24
ES2026932T3 (en) 1992-05-16
GR3003364T3 (en) 1993-02-17
ATE67477T1 (en) 1991-10-15
EP0271371A1 (en) 1988-06-15

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