FR2162486B1 - - Google Patents

Info

Publication number
FR2162486B1
FR2162486B1 FR7243367A FR7243367A FR2162486B1 FR 2162486 B1 FR2162486 B1 FR 2162486B1 FR 7243367 A FR7243367 A FR 7243367A FR 7243367 A FR7243367 A FR 7243367A FR 2162486 B1 FR2162486 B1 FR 2162486B1
Authority
FR
France
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
FR7243367A
Other languages
French (fr)
Other versions
FR2162486A1 (en
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Publication of FR2162486A1 publication Critical patent/FR2162486A1/fr
Application granted granted Critical
Publication of FR2162486B1 publication Critical patent/FR2162486B1/fr
Granted 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)
FR7243367A 1971-12-07 1972-12-06 (meth)acrylic acid purification - in aqs soln contg acetic acid by extraction and distillation Granted FR2162486A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9924871A JPS4862712A (enrdf_load_stackoverflow) 1971-12-07 1971-12-07

Publications (2)

Publication Number Publication Date
FR2162486A1 FR2162486A1 (en) 1973-07-20
FR2162486B1 true FR2162486B1 (enrdf_load_stackoverflow) 1975-10-17

Family

ID=14242385

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7243367A Granted FR2162486A1 (en) 1971-12-07 1972-12-06 (meth)acrylic acid purification - in aqs soln contg acetic acid by extraction and distillation

Country Status (4)

Country Link
JP (1) JPS4862712A (enrdf_load_stackoverflow)
DE (1) DE2259501A1 (enrdf_load_stackoverflow)
FR (1) FR2162486A1 (enrdf_load_stackoverflow)
NL (1) NL7216556A (enrdf_load_stackoverflow)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8001385A (nl) * 1979-03-15 1980-09-17 Halcon Res & Dev Werkwijze voor de bereiding van methacrylzuur.
US4599144A (en) * 1984-06-25 1986-07-08 Standard Oil Company (Indiana) Process for recovery of methacrylic acid
JP5066309B2 (ja) * 1999-04-05 2012-11-07 株式会社日本触媒 易重合性物質含有物の精製方法
DE102014108980A1 (de) 2014-06-26 2015-12-31 L'Air Liquide Société Anonyme pour l'Etude et l'Exploitation des Procédés Georges Claude Verfahren und Anlage zur Aufreinigung von Acrylsäure
WO2025131819A2 (en) 2023-12-19 2025-06-26 IFP Energies Nouvelles Process for production of bio-acrylic acid

Also Published As

Publication number Publication date
FR2162486A1 (en) 1973-07-20
NL7216556A (enrdf_load_stackoverflow) 1973-06-12
DE2259501A1 (de) 1973-06-14
JPS4862712A (enrdf_load_stackoverflow) 1973-09-01

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Legal Events

Date Code Title Description
ST Notification of lapse