Catalyst for methacrylic acid production, coated catalyst, and process for producing the same
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-027/14
B01J-027/198
B01J-027/188
B01J-027/19
B01J-027/185
출원번호
US-0380361
(2001-09-13)
우선권정보
JP-0286326 (2000-09-21); JP-0373761 (2000-12-08)
국제출원번호
PCT/JP01/07955
(2001-09-13)
국제공개번호
WO02/24328
(2002-03-28)
발명자
/ 주소
Seo, Yoshimasa
Sudo, Atsushi
Sugi, Hideki
출원인 / 주소
Nippon Kayaku Kabushiki Kaisha
대리인 / 주소
Nields & Lemack
인용정보
피인용 횟수 :
2인용 특허 :
10
초록▼
The present invention relates to a catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising Mo, V, P and Cu as the indispensable active components, wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu, a
The present invention relates to a catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising Mo, V, P and Cu as the indispensable active components, wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu, a coated catalyst and a method for manufacturing the coated catalyst, and methacrolein is reacted in a high conversion and methacrylic acid is produced in a high selectivity by use of the catalyst of the present invention, and the catalyst can be used for reaction under high loading condition.
대표청구항▼
1. A catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising the active components which has a constitution represented by Formula (1) as represented below, 10 V a Cu c As d X e Y f O o (1)(in the formula Mo, V, P, Cu, As and
1. A catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising the active components which has a constitution represented by Formula (1) as represented below, 10 V a Cu c As d X e Y f O o (1)(in the formula Mo, V, P, Cu, As and O represent molybdenum, vanadium, phosphorus, copper, arsenic and oxygen respectively; X represents at least one element selected from the group consisting of Ag, Mg, Zn, Al, B, Ge, Sn, Pb, Ti, Zr, Sb, Cr, Re, Bi, W, Fe, Co, Ni, Ce and Th; Y represents at least one element selected from the group consisting of K, Rb and Cs; a, b, c, d, e, f and g represent atomic ratios of the respective elements, with 0.1≦a≦6, 0.5≦b≦6, 0<c≦3, 0≦d≦3, 0≦e≦3, 0≦f≦1; g is the ratio determined by the valence and ratio of the other elements than oxygen), wherein copper acetate is used for all or a part of the necessary amount of a material for said Cu. 2. A catalyst according to claim 1, wherein all or a part of said copper acetate is a solid copper acetate to mix and not an aqueous solution. 3. A catalyst according to claim 2, wherein said catalyst is a mixture of solid copper acetate with a dried product of slurry containing said active components. 4. A method for manufacturing a coated catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising:(a) a process for mixing copper acetate and compounds containing one or more active components with water to prepare their aqueous solution or their water-based dispersion (hereinafter referred to as the slurry, including the solution and the dispersion);(b) a process for drying the slurry prepared in the process (a) to obtain a dried slurry;(c) a process for coating the dried slurry obtained in the process (b) on a carrier with a binder to obtain a coated product; and(d) a process for calcining the coated product obtained in the process (c),wherein said binder is at least one selected from the group consisting of water and an organic compound whose boiling point is 150° C. or lower at 1 atm,and said active components have a constitution represented by Formula (1) as represented below, 10 V a Cu c As d X e Y f O o (1)(in the formula Mo, V, P, Cu, As and O represent molybdenum, vanadium, phosphorus, copper, arsenic and oxygen respectively; X represents at least one element selected from the group consisting of Ag, Mg, Zn, Al, B, Ge, Sn, Pb, Ti, Zr, Sb, Cr, Re, Bi, W, Fe, Co, Ni, Ce and Th; Y represents at least one element selected from the group consisting of K, Rb and Cs; a, b, c, d, e, f and g represent atomic ratios of the respective elements, with 0.1≦a≦6, 0.5≦b≦6, 0<c≦3, 0≦d≦3, 0≦e≦3, 0≦f≦1; g is the ratio determined by the valence and ratio of the other elements than oxygen). 5. A method for manufacturing a coated catalyst for producing methacrylic acid by the vapor-phase catalytic oxidation of methacrolein, comprising:(a) a process for mixing compounds containing each one or more active components with water to prepare their aqueous solution or their water-based dispersion (hereinafter referred to as the slurry, including the solution and the dispersion);(b) a process for drying the slurry prepared in the process (a) to obtain a dried slurry;(b′) a process for mixing solid copper acetate with the dried slurry obtained in the process (b) to prepare a mixture;(c) a process for coating the mixture prepared in the process (b′) on a carrier with a binder to obtain a coated product; and(d) a process for calcining the coated product obtained in the process (c),wherein said binder is at least one selected from the group consisting of water and an organic compound whose boiling point is 150° C. or lower at 1 atm,and said active components have a constitution represented by Formula (1) as represented below, 10 V a Cu c As d X e Y f O o (1)(in the formula Mo, V, P, Cu, As and O represent molybdenum, vanadium, phosphorus, copper, arsenic and oxygen respectively; X represents at least one element selected from the group consisting of Ag, Mg, Zn, Al, B, Ge, Sn, Pb, Ti, Zr, Sb, Cr, Re, Bi, W, Fe, Co, Ni, Ce and Th; Y represents at least one element selected from the group consisting of K, Rb and Cs; a, b, c, d, e, f and g represent atomic ratios of the respective elements, with 0.1≦a≦6, 0.5≦b≦6, 0<c≦3, 0≦d≦3, 0≦e≦3, 0≦f≦1; g is the ratio determined by the valence and ratio of the other elements than oxygen). 6. A method for manufacturing a coated catalyst according to claim 4 or 5, wherein a compound containing As is used to prepare the slurry in the process (a). 7. A method for manufacturing a coating catalyst according to claim 4 or 5, wherein copper oxide is used to prepare the slurry in the process (a). 8. A method for manufacturing a coated catalyst according to claim 4 or 5, wherein a compound containing As and copper oxide is used to prepare the slurry in the process (a). 9. A method for manufacturing a coated catalyst according to claim 4 or 5, wherein said binder is ethanol. 10. A method for manufacturing a coated catalyst according to claim 9, wherein said binder is a mixture having an ethanol/water ratio of 10/0-5/5. 11. A coated catalyst obtained by a method according to any of claim 4 or 5.
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이 특허에 인용된 특허 (10)
Wada Koichi,JPX ; Iwamoto Akira,JPX ; Seo Yoshimasa,JPX ; Sudo Atsusi,JPX ; Sakai Fumio,JPX ; Shiraishi Kazuo,JPX ; Miki Hideaki,JPX, Catalyst and process for producing unsaturated aldehyde and unsaturated acid.
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Krabetz Richard (Kirchheim DEX) Schwarzmann Matthias (Limburgerhof DEX), Oxidation catalyst, especially for the preparation of methacrylic acid by gas phase oxidation of methacrolein.
Krabetz Richard (Kirchheim DEX) Duembgen Gerd (Dannstadt-Schauernheim DEX) Nees Friedbert (Stutensee DEX) Merger Franz (Frankenthal DEX) Fouquet Gerd (Neustadt DEX), Process and catalyst for the preparation of methacrylic acid.
Yamamoto Shinji (Otake JPX) Oh-Kita Motomu (Otake JPX), Process for preparing catalyst for producing methacrylic acid and catalyst prepared by process.
Wada Koichi,JPX ; Seo Yoshimasa,JPX ; Iwamoto Akira,JPX ; Sudo Atsushi,JPX ; Sakai Fumio,JPX ; Shiraishi Kazuo,JPX ; Nowatari Hiroyoshi,JPX, Producing acrolein and acrylic acid using a supported dual activity molybdenum, iron, and bismuth based catalyst in a fixed bed multitubular reactor.
Sudo, Atsushi; Kurakami, Tatsuhiko; Kojima, Toshitake; Hayashimoto, Shigeo, Catalyst for use in production of methacrylic acid and method for manufacturing the same.
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