JPS57120547A - Preparation of acrylic acid or methacrylic acid - Google Patents

Preparation of acrylic acid or methacrylic acid

Info

Publication number
JPS57120547A
JPS57120547A JP56005871A JP587181A JPS57120547A JP S57120547 A JPS57120547 A JP S57120547A JP 56005871 A JP56005871 A JP 56005871A JP 587181 A JP587181 A JP 587181A JP S57120547 A JPS57120547 A JP S57120547A
Authority
JP
Japan
Prior art keywords
catalyst
methacrolein
gas phase
temperature gas
preparation
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
JP56005871A
Other languages
Japanese (ja)
Inventor
Taiji Odan
Kenichi Suzuki
Yasuo Bando
Toshihiko Nunogami
Masataka Fujinaga
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.)
Ube Corp
Original Assignee
Ube Industries 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 Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP56005871A priority Critical patent/JPS57120547A/en
Publication of JPS57120547A publication Critical patent/JPS57120547A/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

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

Abstract

PURPOSE: To obtain the titled substance in high selectivity with a long life of a catalyst, by using the catalyst comprising a combination of specific component elements in a composition ratio, by reacting acrolein or methacrolein with molecular oxygen at high-temperature gas phase.
CONSTITUTION: Using a composition shown by the formula (Mo is molybdenum; P is phosphorus, Ca is calcium; Ta is tantalum; B is boron; X is potassium and/ or cesium; V is vanadium; Cu is copper; As is arsenic; O is oxygen; added letters a, b, c, d, e, f, g, h, i, and j show numbers of atoms, when a is 12, b=0.5W5; c=0.005W5; d=0.005W5; e=0.005W5; f=0.01W4; g=0.05W3; h=0.005W5; i=0.05W 3; j is a value automatically fixed depending upon the valences of the component elements and usually 38W89) as a catalyst, acrolein or methacrolein is reacted with molecular oxygen in high-temperature gas phase, to give the desired compound.
COPYRIGHT: (C)1982,JPO&Japio
JP56005871A 1981-01-20 1981-01-20 Preparation of acrylic acid or methacrylic acid Pending JPS57120547A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56005871A JPS57120547A (en) 1981-01-20 1981-01-20 Preparation of acrylic acid or methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56005871A JPS57120547A (en) 1981-01-20 1981-01-20 Preparation of acrylic acid or methacrylic acid

Publications (1)

Publication Number Publication Date
JPS57120547A true JPS57120547A (en) 1982-07-27

Family

ID=11622988

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56005871A Pending JPS57120547A (en) 1981-01-20 1981-01-20 Preparation of acrylic acid or methacrylic acid

Country Status (1)

Country Link
JP (1) JPS57120547A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042184A1 (en) * 1999-12-10 2001-06-14 Mitsubishi Rayon Co., Ltd. Method for producing methacrylic acid
JP2008184304A (en) * 2007-01-31 2008-08-14 Tanaka Seiki Kk Tension device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001042184A1 (en) * 1999-12-10 2001-06-14 Mitsubishi Rayon Co., Ltd. Method for producing methacrylic acid
US6969774B2 (en) 1999-12-10 2005-11-29 Mitsubishi Rayon Co., Ltd. Method for producing methacrylic acid
KR100709912B1 (en) * 1999-12-10 2007-04-24 미쯔비시 레이온 가부시끼가이샤 Method for producing methacrylic acid
JP2008184304A (en) * 2007-01-31 2008-08-14 Tanaka Seiki Kk Tension device

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