GB448145A - Purification of aliphatic acids - Google Patents

Purification of aliphatic acids

Info

Publication number
GB448145A
GB448145A GB14442/35A GB1444235A GB448145A GB 448145 A GB448145 A GB 448145A GB 14442/35 A GB14442/35 A GB 14442/35A GB 1444235 A GB1444235 A GB 1444235A GB 448145 A GB448145 A GB 448145A
Authority
GB
United Kingdom
Prior art keywords
acids
aliphatic acids
purification
catalyst
vanadium
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
GB14442/35A
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.)
Carbide and Carbon Chemicals Corp
Original Assignee
Carbide and Carbon Chemicals 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 Carbide and Carbon Chemicals Corp filed Critical Carbide and Carbon Chemicals Corp
Publication of GB448145A publication Critical patent/GB448145A/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
    • C07C51/487—Separation; Purification; Stabilisation; Use of additives by treatment giving rise to chemical modification

Landscapes

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

Abstract

Aliphatic acids which have been made by oxidation of aldehydes are separated from the reaction mixture by fractional distillation and then treated by aeration in presence of an oxidizing catalyst to remove residual impurities, after which the acid may be distilled to free it from the catalyst. Suitable catalysts are vanadium salts, vanadium oxide, and ammonium metavanadate. Acids mentioned are acetic, propionic, butyric, caproic, and 2-ethylbutyric acids. The purification treatment may be effected in a vertical aluminium vessel heated by a steam coil and provided with a reflux condenser. The temperature may be 90--120 DEG C. Pressure may be employed.
GB14442/35A 1934-06-13 1935-05-17 Purification of aliphatic acids Expired GB448145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US448145XA 1934-06-13 1934-06-13

Publications (1)

Publication Number Publication Date
GB448145A true GB448145A (en) 1936-06-03

Family

ID=21934470

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14442/35A Expired GB448145A (en) 1934-06-13 1935-05-17 Purification of aliphatic acids

Country Status (1)

Country Link
GB (1) GB448145A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465844A2 (en) * 1990-06-11 1992-01-15 MITSUI TOATSU CHEMICALS, Inc. Purification method of 2-chloropropionic acid

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0465844A2 (en) * 1990-06-11 1992-01-15 MITSUI TOATSU CHEMICALS, Inc. Purification method of 2-chloropropionic acid
EP0465844A3 (en) * 1990-06-11 1992-07-01 Mitsui Toatsu Chemicals, Incorporated Purification method of 2-chloropropionic acid
US5215671A (en) * 1990-06-11 1993-06-01 Mitsui Toatsu Chemicals, Incorporated Purification method of 2-chloropropionic acid

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