JPS55100325A - Preparation of methacrolein and methacrylic acid - Google Patents

Preparation of methacrolein and methacrylic acid

Info

Publication number
JPS55100325A
JPS55100325A JP719279A JP719279A JPS55100325A JP S55100325 A JPS55100325 A JP S55100325A JP 719279 A JP719279 A JP 719279A JP 719279 A JP719279 A JP 719279A JP S55100325 A JPS55100325 A JP S55100325A
Authority
JP
Japan
Prior art keywords
catalyst
methacrylic acid
prepared
life
heteropolyacid
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
JP719279A
Other languages
Japanese (ja)
Inventor
Koichi Wada
Mutsumi Matsumoto
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 Kayaku Co Ltd
Original Assignee
Nippon Kayaku 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 Kayaku Co Ltd filed Critical Nippon Kayaku Co Ltd
Priority to JP719279A priority Critical patent/JPS55100325A/en
Priority to YU3109/79A priority patent/YU41495B/en
Priority to US06/109,554 priority patent/US4320227A/en
Priority to GB8000590A priority patent/GB2045635B/en
Priority to RO99920A priority patent/RO80120B/en
Priority to DE19803001911 priority patent/DE3001911A1/en
Priority to SU802873603A priority patent/SU1055329A3/en
Priority to CA344,167A priority patent/CA1125785A/en
Priority to IT19363/80A priority patent/IT1129709B/en
Priority to FR8001338A priority patent/FR2447364A1/en
Priority to CS80469A priority patent/CS226406B2/en
Priority to NL8000441A priority patent/NL8000441A/en
Priority to ES488611A priority patent/ES488611A0/en
Priority to SE8000535A priority patent/SE437150B/en
Publication of JPS55100325A publication Critical patent/JPS55100325A/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 prepare the title compounds, especially methacrylic acid, in high yield, by the vapor-phase catalytic oxidation of isobutyl aldehyde with molecular oxfygen or a gas containing molecular oxygen, in the presence of a highly active, highly selective, long-life catalyst having heteropolyacid structure.
CONSTITUTION: The title compound is prepared by oxidizing isobutyl aldehyde with molecular oxygen, etc., in the presence of a catalyst composed of a heteropolyacid of formula (X is As, Th, Al, Fe, etc.; Y is K, Rb, etc.; when a=10, then 0< b≤6, 0.5≤c≤6, 0<d, e≤3, 0≤f≤1.5 and g is defined by the values of aWf) or a mixture of the acid and its salt. The catalyst can be prepared by dissolving or slurrifying a compound of the constituent element in a solvent, evaporating the solution, etc. to dryness, and if necessary, calcining the dried product. It is preferably supported with a carrier to improve the heat resistance, life, and yield.
COPYRIGHT: (C)1980,JPO&Japio
JP719279A 1979-01-23 1979-01-26 Preparation of methacrolein and methacrylic acid Pending JPS55100325A (en)

Priority Applications (14)

Application Number Priority Date Filing Date Title
JP719279A JPS55100325A (en) 1979-01-26 1979-01-26 Preparation of methacrolein and methacrylic acid
YU3109/79A YU41495B (en) 1979-01-23 1979-12-19 Process for obtaining methacrolein and methacrylic acid
US06/109,554 US4320227A (en) 1979-01-23 1980-01-04 Process for producing methacrolein and methacrylic acid
GB8000590A GB2045635B (en) 1979-01-23 1980-01-08 Process for producing methacrolein and methacrylic acid
RO99920A RO80120B (en) 1979-01-23 1980-01-19 Process for preparing methacroline and methacrylic acid
DE19803001911 DE3001911A1 (en) 1979-01-23 1980-01-19 METHOD FOR PRODUCING METHACROLEIN AND METHACRYLIC ACID
SU802873603A SU1055329A3 (en) 1979-01-23 1980-01-22 Process for preparing metacrolein and methacrylic acid
CA344,167A CA1125785A (en) 1979-01-23 1980-01-22 Process for producing methacrolein and methacrylic acid
IT19363/80A IT1129709B (en) 1979-01-23 1980-01-22 METHACROLEIN AND METHACRYLIC ACID PRODUCTION PROCESS
FR8001338A FR2447364A1 (en) 1979-01-23 1980-01-22 PROCESS FOR THE PREPARATION OF METHACROLEIN AND METHACRYLIC ACID BY CATALYTIC OXIDATION IN THE VAPOR PHASE OF ISOBUTYL ALDEHYDE
CS80469A CS226406B2 (en) 1979-01-23 1980-01-23 Method of preparing methacrolein and methacrylic acid
NL8000441A NL8000441A (en) 1979-01-23 1980-01-23 PROCESS FOR THE PREPARATION OF METHACROLEIN AND METHACRYLIC ACID.
ES488611A ES488611A0 (en) 1979-01-23 1980-01-23 PROCEDURE FOR THE MANUFACTURE OF METHACROLEIN AND METHACRYLIC ACID
SE8000535A SE437150B (en) 1979-01-23 1980-01-23 SET TO MAKE METACROLINE AND METACRYLIC ACID

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP719279A JPS55100325A (en) 1979-01-26 1979-01-26 Preparation of methacrolein and methacrylic acid

Publications (1)

Publication Number Publication Date
JPS55100325A true JPS55100325A (en) 1980-07-31

Family

ID=11659166

Family Applications (1)

Application Number Title Priority Date Filing Date
JP719279A Pending JPS55100325A (en) 1979-01-23 1979-01-26 Preparation of methacrolein and methacrylic acid

Country Status (1)

Country Link
JP (1) JPS55100325A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55133329A (en) * 1979-04-03 1980-10-17 Toyo Soda Mfg Co Ltd Preparation of methacrylic acid

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5382715A (en) * 1976-11-24 1978-07-21 Mitsubishi Rayon Co Ltd Preparation of unsaturated compound
JPS55100324A (en) * 1979-01-23 1980-07-31 Nippon Kayaku Co Ltd Preparation of methacrolein and methacrylic acid

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5382715A (en) * 1976-11-24 1978-07-21 Mitsubishi Rayon Co Ltd Preparation of unsaturated compound
JPS55100324A (en) * 1979-01-23 1980-07-31 Nippon Kayaku Co Ltd Preparation of methacrolein and methacrylic acid

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55133329A (en) * 1979-04-03 1980-10-17 Toyo Soda Mfg Co Ltd Preparation of methacrylic acid

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