JPS55358A - Production of unsaturated carboxylic acid - Google Patents

Production of unsaturated carboxylic acid

Info

Publication number
JPS55358A
JPS55358A JP2845879A JP2845879A JPS55358A JP S55358 A JPS55358 A JP S55358A JP 2845879 A JP2845879 A JP 2845879A JP 2845879 A JP2845879 A JP 2845879A JP S55358 A JPS55358 A JP S55358A
Authority
JP
Japan
Prior art keywords
carboxylic acid
stage
unsaturated carboxylic
gas
catalyst
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
JP2845879A
Other languages
Japanese (ja)
Inventor
Akihisa Yamamoto
Shinichi Akiyama
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.)
Zeon Corp
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
Priority to JP2845879A priority Critical patent/JPS55358A/en
Publication of JPS55358A publication Critical patent/JPS55358A/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

Abstract

PURPOSE: The gas-phase catalytic oxidation of an olefin of 3 or more carbon atoms is carried out in two stage wherein a specific catalyst is used in the fore stage and another catalyst is employed in the latter stage, thus producing unsaturated carboxylic acid directly without separation of the aldehyde, the reaction intermediate.
CONSTITUTION: The fore-stage gas phase oxidation of an olefin having 3 or more carbon atoms on the straight chain part with molecular oxygen is conducted in the presence of a catalyst given by the formula (Q is K, Rb, Cs, etc.; R is P, As, B; X is Ce, Ti, Te, Zn, Ge, Sn, Cr, Al, V, Ag, U, etc.; aWj are the numbers of atoms of Mo, Bi, Fe, Co, Ni, Be, Q, R, X, O; when a is assumed 12, b is 0.1W10, c is 0.5W 40, d, e, i are 0W12, d+e is 0.5W15, f is 0.1W35, g is 0.01W5, h is 0W5) to form the aldehyde. The product gas is consequently subjected to gas-phase catalytic oxidation in the presence of another catalyst to give said unsaturated carboxylic acid.
COPYRIGHT: (C)1980,JPO&Japio
JP2845879A 1979-03-12 1979-03-12 Production of unsaturated carboxylic acid Pending JPS55358A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2845879A JPS55358A (en) 1979-03-12 1979-03-12 Production of unsaturated carboxylic acid

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2845879A JPS55358A (en) 1979-03-12 1979-03-12 Production of unsaturated carboxylic acid

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
JP9366176A Division JPS5319188A (en) 1976-08-06 1976-08-06 Olefin oxidation catalyst

Publications (1)

Publication Number Publication Date
JPS55358A true JPS55358A (en) 1980-01-05

Family

ID=12249214

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2845879A Pending JPS55358A (en) 1979-03-12 1979-03-12 Production of unsaturated carboxylic acid

Country Status (1)

Country Link
JP (1) JPS55358A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107050A (en) * 1983-11-15 1985-06-12 Fuji Xerox Co Ltd Electrifying device
US4902383A (en) * 1988-04-05 1990-02-20 Asten Group, Inc. Method of making a papermaker's felt with no flap seam
SG89327A1 (en) * 1999-05-13 2002-06-18 Nippon Catalytic Chem Ind Catalysts for production of unsaturated aldehyde and unsaturated carboxylic acid and a process for producing unsaturated aldehyde and unsaturated carboxylic acid using the catalysts

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60107050A (en) * 1983-11-15 1985-06-12 Fuji Xerox Co Ltd Electrifying device
US4902383A (en) * 1988-04-05 1990-02-20 Asten Group, Inc. Method of making a papermaker's felt with no flap seam
SG89327A1 (en) * 1999-05-13 2002-06-18 Nippon Catalytic Chem Ind Catalysts for production of unsaturated aldehyde and unsaturated carboxylic acid and a process for producing unsaturated aldehyde and unsaturated carboxylic acid using the catalysts

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