JPS57177347A - Oxidizing catalyst and preparation thereof - Google Patents

Oxidizing catalyst and preparation thereof

Info

Publication number
JPS57177347A
JPS57177347A JP56059782A JP5978281A JPS57177347A JP S57177347 A JPS57177347 A JP S57177347A JP 56059782 A JP56059782 A JP 56059782A JP 5978281 A JP5978281 A JP 5978281A JP S57177347 A JPS57177347 A JP S57177347A
Authority
JP
Japan
Prior art keywords
acid
methacrylic acid
catalyst
heteropoly
yield ratio
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
JP56059782A
Other languages
Japanese (ja)
Other versions
JPS6035179B2 (en
Inventor
Rikuo Uejima
Ritsuo Kitada
Yoshiyuki Takahashi
Isao Nagai
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 Shokubai 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 Shokubai Co Ltd filed Critical Nippon Shokubai Co Ltd
Priority to JP56059782A priority Critical patent/JPS6035179B2/en
Priority to US06/275,243 priority patent/US4419270A/en
Priority to EP81104896A priority patent/EP0043100B2/en
Priority to DE8181104896T priority patent/DE3166006D1/en
Priority to KR1019810002304A priority patent/KR840001003B1/en
Priority to BR8104020A priority patent/BR8104020A/en
Priority to CA000380559A priority patent/CA1161822A/en
Priority to SU813301551A priority patent/SU1243610A3/en
Publication of JPS57177347A publication Critical patent/JPS57177347A/en
Priority to US06/681,698 priority patent/US4621155A/en
Publication of JPS6035179B2 publication Critical patent/JPS6035179B2/en
Expired 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

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

Abstract

PURPOSE: To obtain a catalyst excellent in the selectivity and the yield ratio of methacrylic acid by adding Na or the like and Cu or the like to a heteropoly- acid having an almost salt structure consisting of P, Mo, V and O prepared in the presence of a nitrogen containing heterocyclic compound.
CONSTITUTION: As the oxidizing catalyst for preparing methacrylic acid by subjecting 4C unsaturated hydrocarbon or the like to catalytic gas phase oxidation, one wherein a heteropoly-acid is molybdophosphoric acid or a partial substitution thereof and has an almost salt crystal structure whose 2θ is about 26.2°, 10.5°, 21.3° and 30.3° in X-ray pattern and a general formula is PaMoVcXdYeOf wherein X is Na, K or the like, Y is Cu, Sb or the like, when b is 12, a is 0.1W 3, c is 0W6, d is 0.05W10, e is 0.01W5 is used. This catalyst prepares methacrylic acid in high selectivity and a high yield ratio.
COPYRIGHT: (C)1982,JPO&Japio
JP56059782A 1980-06-26 1981-04-22 Oxidation catalyst and its preparation method Expired JPS6035179B2 (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
JP56059782A JPS6035179B2 (en) 1981-04-22 1981-04-22 Oxidation catalyst and its preparation method
US06/275,243 US4419270A (en) 1980-06-26 1981-06-19 Oxidation catalyst
EP81104896A EP0043100B2 (en) 1980-06-26 1981-06-24 Oxidation catalyst and process for preparation thereof
DE8181104896T DE3166006D1 (en) 1980-06-26 1981-06-24 Oxidation catalyst and process for preparation thereof
BR8104020A BR8104020A (en) 1980-06-26 1981-06-25 CATALYST FOR OXIDATION, IN STEAM PHASE, OF AN INSATURED HYDROCARBON, ALCOHOL AND SATURATED OR INSATURATED ALIFACTIC ALDEHYDE, AND PROCESS FOR THE PREPARATION OF THE CATALYST
KR1019810002304A KR840001003B1 (en) 1980-06-26 1981-06-25 Oxidation catalyst
CA000380559A CA1161822A (en) 1980-06-26 1981-06-25 Oxidation catalyst and process for preparation thereof
SU813301551A SU1243610A3 (en) 1981-04-22 1981-06-25 Method of preparing catalyst for oxidation of metacrolein and isobutyraldehyde
US06/681,698 US4621155A (en) 1980-06-26 1984-12-14 Process for preparation of methacrylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56059782A JPS6035179B2 (en) 1981-04-22 1981-04-22 Oxidation catalyst and its preparation method

Publications (2)

Publication Number Publication Date
JPS57177347A true JPS57177347A (en) 1982-11-01
JPS6035179B2 JPS6035179B2 (en) 1985-08-13

Family

ID=13123201

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56059782A Expired JPS6035179B2 (en) 1980-06-26 1981-04-22 Oxidation catalyst and its preparation method

Country Status (1)

Country Link
JP (1) JPS6035179B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044042A (en) * 1983-08-23 1985-03-08 Ube Ind Ltd Preparation of catalyst for preparing methacrylic acid
WO1986001797A1 (en) * 1984-09-20 1986-03-27 Mitsubishi Rayon Co., Ltd. Process for producing unsaturated carboxylic acids
EP0794151A1 (en) * 1996-03-08 1997-09-10 Nippon Shokubai Co., Ltd. Novel metal ion-exchanged phosphorusvanadium compound and solid acid catalyst using the compound
US6458740B2 (en) 2000-03-07 2002-10-01 Nippon Shokubai Co Ltd Method for preparing heteropolyacid catalyst and method for producing methacrylic acid

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6277770U (en) * 1985-11-05 1987-05-18
JPS6423078A (en) * 1987-07-16 1989-01-25 Ekika Carbon Dioxide Co Cooler/refrigerating chamber

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6044042A (en) * 1983-08-23 1985-03-08 Ube Ind Ltd Preparation of catalyst for preparing methacrylic acid
JPH052374B2 (en) * 1983-08-23 1993-01-12 Ube Industries
WO1986001797A1 (en) * 1984-09-20 1986-03-27 Mitsubishi Rayon Co., Ltd. Process for producing unsaturated carboxylic acids
EP0794151A1 (en) * 1996-03-08 1997-09-10 Nippon Shokubai Co., Ltd. Novel metal ion-exchanged phosphorusvanadium compound and solid acid catalyst using the compound
US6458740B2 (en) 2000-03-07 2002-10-01 Nippon Shokubai Co Ltd Method for preparing heteropolyacid catalyst and method for producing methacrylic acid
US6624326B2 (en) 2000-03-07 2003-09-23 Nippon Shokubai Co., Ltd. Method for preparing heteropolyacid catalyst and method for producing methacrylic acid

Also Published As

Publication number Publication date
JPS6035179B2 (en) 1985-08-13

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