GB383049A - 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
GB383049A
GB383049A GB30488/31A GB3048831A GB383049A GB 383049 A GB383049 A GB 383049A GB 30488/31 A GB30488/31 A GB 30488/31A GB 3048831 A GB3048831 A GB 3048831A GB 383049 A GB383049 A GB 383049A
Authority
GB
United Kingdom
Prior art keywords
ketone
aqueous solutions
separation
fatty acids
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
GB30488/31A
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.)
Usines de Melle SA
Original Assignee
Usines de Melle SA
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 Usines de Melle SA filed Critical Usines de Melle SA
Publication of GB383049A publication Critical patent/GB383049A/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

Landscapes

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

Abstract

Aliphatic acids such as acetic acid are extracted from their aqueous solutions by an aliphatic ketone with or without the addition of a hydrocarbon, and the extract is distilled with the return to the still of the solvent layer of the distillate as described in the parent Specification. Ketones mentioned are methylethyl ketone, diethyl ketone, methyl-isopropyl ketone and light acetone oil. the boiling-point of the ketone is lower than that of the acid to be extracted. In an example, aqueous acetic acid is extracted with a mixture of 80 parts methylethyl ketone with 20 parts benzene. Specifications 283,702, 290,992, and 338,187, [all in Class 2 (iii), Dyes &c.], are referred to.
GB30488/31A 1930-11-03 1931-11-03 Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions Expired GB383049A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BE383049X 1930-11-03

Publications (1)

Publication Number Publication Date
GB383049A true GB383049A (en) 1932-11-10

Family

ID=3868739

Family Applications (1)

Application Number Title Priority Date Filing Date
GB30488/31A Expired GB383049A (en) 1930-11-03 1931-11-03 Improved process for the separation in the anhydrous state of fatty acids contained in dilute aqueous solutions

Country Status (1)

Country Link
GB (1) GB383049A (en)

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