FR2289482B1 - - Google Patents

Info

Publication number
FR2289482B1
FR2289482B1 FR7532485A FR7532485A FR2289482B1 FR 2289482 B1 FR2289482 B1 FR 2289482B1 FR 7532485 A FR7532485 A FR 7532485A FR 7532485 A FR7532485 A FR 7532485A FR 2289482 B1 FR2289482 B1 FR 2289482B1
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
FR7532485A
Other languages
French (fr)
Other versions
FR2289482A1 (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.)
AGC Inc
Original Assignee
Asahi Glass 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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of FR2289482A1 publication Critical patent/FR2289482A1/en
Application granted granted Critical
Publication of FR2289482B1 publication Critical patent/FR2289482B1/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
    • C07C51/16—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
    • C07C45/00—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/27—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation
    • C07C45/32—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen
    • C07C45/33—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties
    • C07C45/34—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds
    • C07C45/35—Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by oxidation with molecular oxygen of CHx-moieties in unsaturated compounds in propene or isobutene
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/582—Recycling of unreacted starting or intermediate materials
FR7532485A 1974-10-23 1975-10-23 PROCESS FOR PREPARING METHACRYLIC ACID FROM ISOBUTYLENE AND BY A TWO-STAGE OXIDATION Granted FR2289482A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49121510A JPS5148609A (en) 1974-10-23 1974-10-23 NIDANSANKANYORUISOPUCHIRENKARANO METAKU

Publications (2)

Publication Number Publication Date
FR2289482A1 FR2289482A1 (en) 1976-05-28
FR2289482B1 true FR2289482B1 (en) 1980-08-08

Family

ID=14812973

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7532485A Granted FR2289482A1 (en) 1974-10-23 1975-10-23 PROCESS FOR PREPARING METHACRYLIC ACID FROM ISOBUTYLENE AND BY A TWO-STAGE OXIDATION

Country Status (6)

Country Link
JP (1) JPS5148609A (en)
DE (1) DE2547536C2 (en)
FR (1) FR2289482A1 (en)
GB (1) GB1504940A (en)
IT (1) IT1043608B (en)
NL (1) NL7512354A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52108917A (en) * 1976-03-11 1977-09-12 Nippon Shokubai Kagaku Kogyo Co Ltd Preparation of acrylic acid by vapor-phase catalytic oxidation of prop ylene
JPS5353613A (en) * 1976-10-26 1978-05-16 Nippon Zeon Co Ltd Preparation of methacrylic acid
JPS6059891B2 (en) * 1977-09-28 1985-12-27 住友化学工業株式会社 Method for separating methacrolein and methacrylic acid
NL8001385A (en) * 1979-03-15 1980-09-17 Halcon Res & Dev METHOD FOR THE PREPARATION OF METHACRYLIC ACID.
JPS6145541Y2 (en) * 1981-05-20 1986-12-22
CA1299193C (en) * 1986-07-17 1992-04-21 Gordon Gene Harkreader Anhydrous diluents for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
CA1305178C (en) * 1986-08-21 1992-07-14 Gordon Gene Harkreader Anhydrous diluent process for the propylene oxidation reaction to acrolein and acrolein oxidation to acrylic acid
JP4456862B2 (en) 2001-06-29 2010-04-28 ビーエーエスエフ ソシエタス・ヨーロピア Process for producing methacrylic acid from iso-butane
US9732023B2 (en) 2013-03-18 2017-08-15 Evonik Roehm Gmbh Process for preparation of methacrylic acid and methacrylic acid esters
CN110694687B (en) * 2019-11-07 2022-10-04 曲阜师范大学 Loaded nano heteropolyacid catalyst for preparing methacrylic acid by oxidizing methacrolein and preparation method thereof

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5534783B2 (en) * 1972-03-09 1980-09-09

Also Published As

Publication number Publication date
IT1043608B (en) 1980-02-29
FR2289482A1 (en) 1976-05-28
DE2547536A1 (en) 1976-04-29
JPS5148609A (en) 1976-04-26
DE2547536C2 (en) 1984-06-28
JPS5713538B2 (en) 1982-03-17
GB1504940A (en) 1978-03-22
NL7512354A (en) 1976-04-27

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Legal Events

Date Code Title Description
ST Notification of lapse