FR2120881A5 - - Google Patents

Info

Publication number
FR2120881A5
FR2120881A5 FR7146691A FR7146691A FR2120881A5 FR 2120881 A5 FR2120881 A5 FR 2120881A5 FR 7146691 A FR7146691 A FR 7146691A FR 7146691 A FR7146691 A FR 7146691A FR 2120881 A5 FR2120881 A5 FR 2120881A5
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
FR7146691A
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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 Nippon Zeon Co Ltd filed Critical Nippon Zeon Co Ltd
Application granted granted Critical
Publication of FR2120881A5 publication Critical patent/FR2120881A5/fr
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
    • C07C51/16—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation
    • C07C51/21—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen
    • C07C51/25—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring
    • C07C51/252—Preparation of carboxylic acids or their salts, halides or anhydrides by oxidation with molecular oxygen of unsaturated compounds containing no six-membered aromatic ring of propene, butenes, acrolein or methacrolein
    • 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
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/52—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation
    • C07C67/54—Separation; Purification; Stabilisation; Use of additives by change in the physical state, e.g. crystallisation by distillation
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C67/00—Preparation of carboxylic acid esters
    • C07C67/48—Separation; Purification; Stabilisation; Use of additives
    • C07C67/58—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)
  • Extraction Or Liquid Replacement (AREA)
FR7146691A 1970-12-28 1971-12-27 Expired FR2120881A5 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP45119626A JPS4941413B1 (fr) 1970-12-28 1970-12-28

Publications (1)

Publication Number Publication Date
FR2120881A5 true FR2120881A5 (fr) 1972-08-18

Family

ID=14766087

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7146691A Expired FR2120881A5 (fr) 1970-12-28 1971-12-27

Country Status (7)

Country Link
US (1) US3781332A (fr)
JP (1) JPS4941413B1 (fr)
DE (1) DE2164507A1 (fr)
FR (1) FR2120881A5 (fr)
GB (1) GB1326478A (fr)
IT (1) IT943363B (fr)
NL (1) NL7117869A (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383160A1 (fr) * 1977-03-16 1978-10-06 Montedison Spa Procede de separation d'acides carboxyliques insatures a partir de leurs solutions aqueuses.

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534784B2 (fr) * 1972-05-23 1980-09-09
US4040913A (en) * 1975-09-02 1977-08-09 Rohm And Haas Company Recovery of methacrylic acid from the effluent obtained from the condensation of formaldehyde and propionic acid
US4142058A (en) * 1977-12-08 1979-02-27 Mitsubishi Rayon Co., Ltd. Method of separating and purifying methacrylic acid
JPS6016927B2 (ja) * 1979-07-19 1985-04-30 三菱レイヨン株式会社 メタクリル酸の抽出分離法
JPS56108735A (en) * 1980-02-01 1981-08-28 Sumitomo Chem Co Ltd Treating method of waste water in preparation of methacrylic acid
JPS5826843A (ja) * 1981-08-11 1983-02-17 Sumitomo Chem Co Ltd アクリル酸エステルまたはメタクリル酸エステルの製造方法
JP4715106B2 (ja) * 2004-04-01 2011-07-06 三菱化学株式会社 （メタ）アクリル酸誘導体の製造方法
WO2007074827A1 (fr) * 2005-12-26 2007-07-05 Mitsubishi Rayon Co., Ltd. Procede d’extraction d’acide methacrylique
JPWO2020241720A1 (fr) * 2019-05-31 2020-12-03

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3539620A (en) * 1966-09-22 1970-11-10 Gulf Research Development Co Process for the production of methyl methacrylate
US3414485A (en) * 1967-05-17 1968-12-03 Escambia Chem Corp Process for drying methacrylic acid by extraction and azeotropic distillation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2383160A1 (fr) * 1977-03-16 1978-10-06 Montedison Spa Procede de separation d'acides carboxyliques insatures a partir de leurs solutions aqueuses.

Also Published As

Publication number Publication date
JPS4941413B1 (fr) 1974-11-08
US3781332A (en) 1973-12-25
GB1326478A (en) 1973-08-15
NL7117869A (fr) 1972-06-30
IT943363B (it) 1973-04-02
DE2164507A1 (fr) 1972-07-27

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Legal Events

Date Code Title Description
ST Notification of lapse