Composite-oxide catalyst and process for production of...

Details Composite-oxide catalyst and process for production of... Composite-oxide catalyst and process for production of...

2004-01-26

2008-09-30

Eyler, Yvonne (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acids and salts thereof

C562S532000, C562S534000

Reexamination Certificate

active

07429678

ABSTRACT:
There are disclosed a catalyst and a process for production of acrylic acid using this catalyst, wherein, even under conditions where hot spots are formed, the catalyst is excellent in activity, selectivity, and catalyst life time and displays stable performances for a long time. The catalyst is shown by the following formula (1):in-line-formulae description="In-line Formulae" end="lead"?MoaVbWcCudAeBfCgOx  (1)in-line-formulae description="In-line Formulae" end="tail"?(wherein: A is at least one species selected from among cobalt, nickel, iron, lead, and bismuth; B is at least one species selected from among antimony, niobium, and tin; and C is at least one species selected from among silicon, aluminum, titanium, and zirconium; and further, a, b, c, d, e, f, g, and x are atomic ratios of Mo, V, W, Cu, A, B, C, and O respectively; and, in the case of a=12, the following inequalities are satisfied: 2≦b≦15; 0<c≦10; 0<d≦6; 0<e≦30; 0≦f≦6; and 0≦g≦60; and x is a numerical value as determined by the oxidation state of each element); wherein a supply source of a component A for preparing the catalyst is a composite of the component A and at least one species selected from among Mo, V, and Cu.

REFERENCES:
patent: 3567773 (1971-03-01), Yamaguchi et al.
patent: 3801634 (1974-04-01), Krabetz et al.
patent: 4031135 (1977-06-01), Engelbach et al.
patent: RE29901 (1979-02-01), Wada et al.
patent: 4148757 (1979-04-01), Brazdil et al.
patent: 4438217 (1984-03-01), Takata et al.
patent: 4537874 (1985-08-01), Sato et al.
patent: 4769357 (1988-09-01), Sarumar et al.
patent: 5198580 (1993-03-01), Bartek et al.
patent: 5719318 (1998-02-01), Kawajiri et al.
patent: 6492548 (2002-12-01), Brockwell et al.
patent: 6525217 (2003-02-01), Unverricht et al.
patent: 6797839 (2004-09-01), Hibst et al.
patent: 2002/0065431 (2002-05-01), Chaturvedi et al.
patent: 1068670 (1979-12-01), None
patent: 1295497 (2001-05-01), None
patent: 1343194 (2002-04-01), None
patent: 198 15 278 (1999-10-01), None
patent: 1 055 455 (2000-11-01), None
patent: 44-12129 (1969-06-01), None
patent: 49-11371 (1974-03-01), None
patent: 50-25914 (1975-08-01), None
patent: 51-36415 (1976-03-01), None
patent: 52-85091 (1977-07-01), None
patent: 53-30688 (1978-08-01), None
patent: 55-47144 (1980-04-01), None
patent: 58-119346 (1983-07-01), None
patent: 59-76541 (1984-05-01), None
patent: 63-146841 (1988-06-01), None
patent: 64-63543 (1989-03-01), None
patent: 7-10802 (1995-01-01), None
patent: 8-47641 (1996-02-01), None
patent: 9-241209 (1997-09-01), None
patent: 2000-325795 (2000-11-01), None
patent: 2001-48817 (2001-02-01), None
patent: 2002/510591 (2002-04-01), None
patent: 2002-306970 (2002-10-01), None
patent: WO 99/51341 (1999-10-01), None

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