GB1300886A - Process for separating water and formic acid from mixtures with acetic acid - Google Patents

Process for separating water and formic acid from mixtures with acetic acid

Info

Publication number
GB1300886A
GB1300886A GB2751671A GB2751671A GB1300886A GB 1300886 A GB1300886 A GB 1300886A GB 2751671 A GB2751671 A GB 2751671A GB 2751671 A GB2751671 A GB 2751671A GB 1300886 A GB1300886 A GB 1300886A
Authority
GB
United Kingdom
Prior art keywords
acetic acid
formic
acid
distillation
mixtures
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
GB2751671A
Inventor
Yoshitoshi Aoki
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.)
Kuraray Co Ltd
Original Assignee
Kuraray Co Ltd
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 Kuraray Co Ltd filed Critical Kuraray Co Ltd
Publication of GB1300886A publication Critical patent/GB1300886A/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)

Abstract

1300886 Separation of formic and acetic acids KURARAY CO Ltd 11 June 1971 [15 June 1970] 27516/71 Heading C2C Aqueous mixtures of formic and acetic acid are separated by azeotropically distilling the water and formic acid from the acetic acid by using methyl isopropyl ketone as an entrainer. The steps of the process comprise an initial distillation with methyl isopropyl ketone to leave acetic acid as the residue, azeotropic distillation of the distillate to separate solvent and water with formic acid as the residue, condensation of the distillate to a two-phase liquid and recycling of the ketone rich phase to the first distillation. Examples are described using two distillation columns, condenser and separator.
GB2751671A 1970-06-15 1971-06-11 Process for separating water and formic acid from mixtures with acetic acid Expired GB1300886A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5225770 1970-06-15

Publications (1)

Publication Number Publication Date
GB1300886A true GB1300886A (en) 1972-12-20

Family

ID=12909681

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2751671A Expired GB1300886A (en) 1970-06-15 1971-06-11 Process for separating water and formic acid from mixtures with acetic acid

Country Status (3)

Country Link
DE (1) DE2129456A1 (en)
FR (1) FR2095274B1 (en)
GB (1) GB1300886A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053524A2 (en) * 2000-12-28 2002-07-11 Consortium für elektrochemische Industrie GmbH Method for separating and purifying an aqueous mixture, whose main components are acetic acid and formic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2002053524A2 (en) * 2000-12-28 2002-07-11 Consortium für elektrochemische Industrie GmbH Method for separating and purifying an aqueous mixture, whose main components are acetic acid and formic acid
WO2002053524A3 (en) * 2000-12-28 2002-09-19 Consortium Elektrochem Ind Method for separating and purifying an aqueous mixture, whose main components are acetic acid and formic acid

Also Published As

Publication number Publication date
FR2095274A1 (en) 1972-02-11
DE2129456A1 (en) 1972-03-02
FR2095274B1 (en) 1973-06-29

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees