GB273744A - Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions - Google Patents

Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions

Info

Publication number
GB273744A
GB273744A GB17543/27A GB1754327A GB273744A GB 273744 A GB273744 A GB 273744A GB 17543/27 A GB17543/27 A GB 17543/27A GB 1754327 A GB1754327 A GB 1754327A GB 273744 A GB273744 A GB 273744A
Authority
GB
United Kingdom
Prior art keywords
ester
fatty acids
aqueous solutions
separation
improved process
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
GB17543/27A
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.)
DISTILLERIES DES DEUX SEVRES
Original Assignee
DISTILLERIES DES DEUX SEVRES
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 DISTILLERIES DES DEUX SEVRES filed Critical DISTILLERIES DES DEUX SEVRES
Publication of GB273744A publication Critical patent/GB273744A/en
Expired 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
    • C07C51/43—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation
    • C07C51/44—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation
    • C07C51/46—Separation; Purification; Stabilisation; Use of additives by change of the physical state, e.g. crystallisation by distillation by azeotropic distillation
    • 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)
  • Crystallography & Structural Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

273,744. Soc. Anon. des Distilleries des Deux-SÚvres. July 1, 1926, [Convention date]. Acetic, propionic, butyric and other fatty acids. -Anhydrous fatty acids or mixtures of such acids are obtained by extracting their aqueous solutions with an acetic acid ester or mixtures of such esters and then distilling the extract to separate first an aqueous ester, then the rest of the ester, and finally the anhydrous acid. The aqueous ester condensate separates into two layers, the ester being returned to the still. The esters mentioned are ethyl, propyl, and butyl acetates. Examples describe, the treatment of a 10 per cent solution of acetic acid with ethyl acetate, and a 5 per cent solution of butyric acid with butyl acetate. Specification 215,716, [Class 32, Distilling &c.], is referred to.
GB17543/27A 1926-07-01 1927-07-01 Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions Expired GB273744A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE273744X 1926-07-01

Publications (1)

Publication Number Publication Date
GB273744A true GB273744A (en) 1928-11-01

Family

ID=3866939

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17543/27A Expired GB273744A (en) 1926-07-01 1927-07-01 Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions

Country Status (1)

Country Link
GB (1) GB273744A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002032A1 (en) * 1985-10-05 1987-04-09 Diamalt Aktiengesellschaft, München Process for recovering acetic acids from waste water
WO1996006065A1 (en) * 1994-08-23 1996-02-29 Imperial Chemical Industries Plc Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid
WO1998045239A1 (en) * 1997-04-09 1998-10-15 E.I. Du Pont De Nemours And Company Water separation process
US6150553A (en) * 1998-08-11 2000-11-21 E. I. Du Pont De Nemours And Company Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1987002032A1 (en) * 1985-10-05 1987-04-09 Diamalt Aktiengesellschaft, München Process for recovering acetic acids from waste water
DE3535583A1 (en) * 1985-10-05 1987-04-23 Diamalt Ag METHOD FOR RECOVERY OF ACIDIC ACID IN WASTEWATER
WO1996006065A1 (en) * 1994-08-23 1996-02-29 Imperial Chemical Industries Plc Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid
US5980696A (en) * 1994-08-23 1999-11-09 E. I. Du Pont De Nemours And Company Dehydration of acetic acid by azeotropic distillation in the production of an aromatic acid
WO1998045239A1 (en) * 1997-04-09 1998-10-15 E.I. Du Pont De Nemours And Company Water separation process
US6150553A (en) * 1998-08-11 2000-11-21 E. I. Du Pont De Nemours And Company Method for recovering methyl acetate and residual acetic acid in the production acid of pure terephthalic acid

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