DE2547536C2 - Verfahren zur Herstellung von Methacrylsäure - Google Patents

Verfahren zur Herstellung von Methacrylsäure

Info

Publication number
DE2547536C2
DE2547536C2 DE2547536A DE2547536A DE2547536C2 DE 2547536 C2 DE2547536 C2 DE 2547536C2 DE 2547536 A DE2547536 A DE 2547536A DE 2547536 A DE2547536 A DE 2547536A DE 2547536 C2 DE2547536 C2 DE 2547536C2
Authority
DE
Germany
Prior art keywords
methacrolein
methacrylic acid
oxidation stage
water
oxygen
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
DE2547536A
Other languages
German (de)
English (en)
Other versions
DE2547536A1 (de
Inventor
Junji Yokohama Kanagawa Endoh
Isao Gotoh
Tohru Hatano Kanagawa Ueno
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 DE2547536A1 publication Critical patent/DE2547536A1/de
Application granted granted Critical
Publication of DE2547536C2 publication Critical patent/DE2547536C2/de
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
    • 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

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)
DE2547536A 1974-10-23 1975-10-23 Verfahren zur Herstellung von Methacrylsäure Expired DE2547536C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP49121510A JPS5148609A (ja) 1974-10-23 1974-10-23 Nidansankanyoruisopuchirenkarano metaku

Publications (2)

Publication Number Publication Date
DE2547536A1 DE2547536A1 (de) 1976-04-29
DE2547536C2 true DE2547536C2 (de) 1984-06-28

Family

ID=14812973

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2547536A Expired DE2547536C2 (de) 1974-10-23 1975-10-23 Verfahren zur Herstellung von Methacrylsäure

Country Status (6)

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

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 (ja) * 1977-09-28 1985-12-27 住友化学工業株式会社 メタクロレインおよびメタクリル酸の分離方法
NL8001385A (nl) * 1979-03-15 1980-09-17 Halcon Res & Dev Werkwijze voor de bereiding van methacrylzuur.
JPS6145541Y2 (enExample) * 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
US6933407B2 (en) 2001-06-29 2005-08-23 Basf Aktiengesellschaft Method for producing methacrylic acid from isobutane
EP2976320B1 (en) 2013-03-18 2020-02-12 Röhm GmbH Process for preparation of methacrylic acid and methacrylic acid esters
CN110694687B (zh) * 2019-11-07 2022-10-04 曲阜师范大学 一种用于甲基丙烯醛氧化制甲基丙烯酸的负载纳米杂多酸催化剂及其制备方法

Family Cites Families (1)

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

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NICHTS-ERMITTELT

Also Published As

Publication number Publication date
JPS5713538B2 (enExample) 1982-03-17
GB1504940A (en) 1978-03-22
JPS5148609A (ja) 1976-04-26
NL7512354A (nl) 1976-04-27
FR2289482B1 (enExample) 1980-08-08
DE2547536A1 (de) 1976-04-29
FR2289482A1 (fr) 1976-05-28
IT1043608B (it) 1980-02-29

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Legal Events

Date Code Title Description
OD Request for examination
8125 Change of the main classification

Ipc: C07C 57/05

D2 Grant after examination
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee