JPS5745130A - Preparation of methacrylic acid - Google Patents

Preparation of methacrylic acid

Info

Publication number
JPS5745130A
JPS5745130A JP55120906A JP12090680A JPS5745130A JP S5745130 A JPS5745130 A JP S5745130A JP 55120906 A JP55120906 A JP 55120906A JP 12090680 A JP12090680 A JP 12090680A JP S5745130 A JPS5745130 A JP S5745130A
Authority
JP
Japan
Prior art keywords
methacrylic acid
catalyst
methacrolein
formula
contact
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.)
Pending
Application number
JP55120906A
Other languages
Japanese (ja)
Inventor
Kazutaka Inoue
Masaaki Kato
Masao Kobayashi
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.)
Mitsubishi Rayon Co Ltd
Original Assignee
Mitsubishi Rayon 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 Mitsubishi Rayon Co Ltd filed Critical Mitsubishi Rayon Co Ltd
Priority to JP55120906A priority Critical patent/JPS5745130A/en
Publication of JPS5745130A publication Critical patent/JPS5745130A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

PURPOSE: To maintain high activity of a catalyst for a long time and to obtain methacrylic acid in high yield and in high selectivity, by bringing methacrolein into contact with an O2-containing gas in a high-temperature gaseous phase using a catalyst composition obtained by adding a specific atom to an Mo-P-Ge system.
CONSTITUTION: Methacrolein is brought into contact with an O2-containing mixed gas in the presence of a catalyst composition shown by the formula II (X is K, Rb, Cs, or Tl; Y is V or Cu2-; Z is Sb, W, Fe, Ca, Ti, Cr, Co, Pb, Nb, Ta, Bi, Zn, Mn or Ni; aWf shown number of atoms respectively, a=0.5W6, b=0.01W6, c=0.2W6, d=0.01W6, e=0W6; f is a number required to form an oxide) having an atom ratio shown by the formula I at from normal pressure to several pressure, at 250W400°C and oxidized to give methacrylic acid. The catalyst is prepared conventionally by a method of evaporation to dryness, precipitation method, etc. for use.
COPYRIGHT: (C)1982,JPO&Japio
JP55120906A 1980-09-01 1980-09-01 Preparation of methacrylic acid Pending JPS5745130A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55120906A JPS5745130A (en) 1980-09-01 1980-09-01 Preparation of methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55120906A JPS5745130A (en) 1980-09-01 1980-09-01 Preparation of methacrylic acid

Publications (1)

Publication Number Publication Date
JPS5745130A true JPS5745130A (en) 1982-03-13

Family

ID=14797919

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55120906A Pending JPS5745130A (en) 1980-09-01 1980-09-01 Preparation of methacrylic acid

Country Status (1)

Country Link
JP (1) JPS5745130A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634210A1 (en) * 1992-01-22 1995-01-18 Mitsubishi Rayon Co., Ltd. Method of preparing catalyst used for producing methacrylic acids
CN103805823A (en) * 2011-12-31 2014-05-21 齐仙玲 High strength magaluma composite board applied to car and preparation process thereof
CN103805823B (en) * 2011-12-31 2016-11-30 李露青 A kind of automobile high-strength almag composite plate and preparation technology thereof

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552619A (en) * 1978-06-21 1980-01-10 Nippon Kayaku Co Ltd Preparation of methacrylic acid and catalyst

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS552619A (en) * 1978-06-21 1980-01-10 Nippon Kayaku Co Ltd Preparation of methacrylic acid and catalyst

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0634210A1 (en) * 1992-01-22 1995-01-18 Mitsubishi Rayon Co., Ltd. Method of preparing catalyst used for producing methacrylic acids
US5420091A (en) * 1992-01-22 1995-05-30 Mitsubishi Rayon Co., Ltd. Method of preparing catalyst used for producing methacrylic acids
CN103805823A (en) * 2011-12-31 2014-05-21 齐仙玲 High strength magaluma composite board applied to car and preparation process thereof
CN103805823B (en) * 2011-12-31 2016-11-30 李露青 A kind of automobile high-strength almag composite plate and preparation technology thereof

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