DE2748050A1 - Verfahren zur herstellung von methacrylsaeure - Google Patents

Verfahren zur herstellung von methacrylsaeure

Info

Publication number
DE2748050A1
DE2748050A1 DE19772748050 DE2748050A DE2748050A1 DE 2748050 A1 DE2748050 A1 DE 2748050A1 DE 19772748050 DE19772748050 DE 19772748050 DE 2748050 A DE2748050 A DE 2748050A DE 2748050 A1 DE2748050 A1 DE 2748050A1
Authority
DE
Germany
Prior art keywords
stage
oxidation
methacrolein
methacrylic acid
separation
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.)
Granted
Application number
DE19772748050
Other languages
German (de)
English (en)
Other versions
DE2748050C2 (US06650917-20031118-M00005.png
Inventor
Shinichi Akiyama
Haruhisa Yamamoto
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.)
Nippon Shokubai Co Ltd
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
Publication of DE2748050A1 publication Critical patent/DE2748050A1/de
Application granted granted Critical
Publication of DE2748050C2 publication Critical patent/DE2748050C2/de
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
    • 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)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DE19772748050 1976-10-26 1977-10-26 Verfahren zur herstellung von methacrylsaeure Granted DE2748050A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12866576A JPS5353613A (en) 1976-10-26 1976-10-26 Preparation of methacrylic acid

Publications (2)

Publication Number Publication Date
DE2748050A1 true DE2748050A1 (de) 1978-04-27
DE2748050C2 DE2748050C2 (US06650917-20031118-M00005.png) 1987-03-05

Family

ID=14990407

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19772748050 Granted DE2748050A1 (de) 1976-10-26 1977-10-26 Verfahren zur herstellung von methacrylsaeure

Country Status (4)

Country Link
US (1) US4564703A (US06650917-20031118-M00005.png)
JP (1) JPS5353613A (US06650917-20031118-M00005.png)
DE (1) DE2748050A1 (US06650917-20031118-M00005.png)
FR (1) FR2369238A1 (US06650917-20031118-M00005.png)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5632149Y2 (US06650917-20031118-M00005.png) * 1978-04-11 1981-07-31
JPS55124734A (en) * 1979-03-22 1980-09-26 Nippon Kayaku Co Ltd Preparation of methacrylic acid
JPS57144237A (en) * 1981-03-04 1982-09-06 Japan Synthetic Rubber Co Ltd Preparation of methacrylic acid
US4838081A (en) * 1986-02-28 1989-06-13 Nabisco Brands, Inc. Method and apparatus for improving the reliability for dough testing results
DE4132684A1 (de) * 1991-10-01 1993-04-08 Basf Ag Verfahren zur katalytischen gasphasenoxidation von methacrolein zu methacrylsaeure
US6339037B1 (en) * 1999-04-27 2002-01-15 Nippon Shokubai Co. Ltd Catalysts for methacrylic acid production and process for producing methacrylic acid
US20090124825A1 (en) * 2007-11-14 2009-05-14 Shanghai Huayi Acrylic Acid Co., Ltd Method of (meth) acrylate production
JP6482941B2 (ja) * 2015-04-28 2019-03-13 株式会社日本触媒 熱交換型反応システムおよびそれを用いた反応方法

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2693474A (en) * 1954-11-02 Oxidation of olefins
FR1295188A (fr) * 1961-07-17 1962-06-01 Shell Int Research Procédé de préparation d'acides monocarboxyliques non saturés à partir d'oléfines
US3686294A (en) * 1970-10-06 1972-08-22 Japanese Geon Co Ltd Process for the production of methacrylic acid
JPS5750765B2 (US06650917-20031118-M00005.png) * 1972-12-29 1982-10-28
JPS5316843B2 (US06650917-20031118-M00005.png) * 1973-06-05 1978-06-03
JPS549369B2 (US06650917-20031118-M00005.png) * 1973-07-05 1979-04-24
JPS5233614B2 (US06650917-20031118-M00005.png) * 1973-08-16 1977-08-30
US3976688A (en) * 1973-11-26 1976-08-24 Nippon Zeon Co., Ltd. Process for preparing unsaturated carboxylic acids
JPS50126605A (US06650917-20031118-M00005.png) * 1974-03-23 1975-10-04
GB1523772A (en) * 1974-07-22 1978-09-06 Standard Oil Co Oxidation catalysts
DE2436818C3 (de) * 1974-07-31 1985-05-09 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Acrylsäure durch Oxidation von Propylen mit Sauerstoff enthaltenden Gasen in zwei getrennten Oxidationsstufen
JPS5148609A (ja) * 1974-10-23 1976-04-26 Asahi Glass Co Ltd Nidansankanyoruisopuchirenkarano metaku
GB1490683A (en) * 1975-03-12 1977-11-02 Mitsubishi Rayon Co Process and a catalyst for producing unsaturated aldehydes unsaturated carboxylic acids or conjugated diene
US4049577A (en) * 1975-12-15 1977-09-20 The Dow Chemical Company Catalyst for making acrolein
DE2735414A1 (de) * 1976-08-06 1978-02-09 Nippon Zeon Co Oxydation von olefinen

Non-Patent Citations (1)

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

Also Published As

Publication number Publication date
FR2369238A1 (fr) 1978-05-26
US4564703A (en) 1986-01-14
JPS5625219B2 (US06650917-20031118-M00005.png) 1981-06-11
JPS5353613A (en) 1978-05-16
FR2369238B1 (US06650917-20031118-M00005.png) 1983-10-28
DE2748050C2 (US06650917-20031118-M00005.png) 1987-03-05

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8127 New person/name/address of the applicant

Owner name: NIPPON SHOKUBAI KAGAKU KOGYO CO. LTD., OSAKA, JP

8128 New person/name/address of the agent

Representative=s name: ZUMSTEIN, F., DIPL.-CHEM. DR.RER.NAT. ASSMANN, E.,

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