Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Reexamination Certificate
2004-01-30
2009-06-16
Hailey, Patricia L (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
C502S206000, C502S214000, C502S353000
Reexamination Certificate
active
07547655
ABSTRACT:
The present invention provides a catalyst precursor for producing maleic anhydride by oxidizing butane. Said catalyst precursor is prepared by a process comprising partially reducing V+5to V+4in a mixture of alcohols consisting of isobutanol and benzyl alcohol in a volume ratio of 2.5-5.0, then adding a phosphoric oxy-acid and an alkylsilicon in turn. The catalyst precursor prepared according to said process has a small pore volume, a relatively high bulk density in an appropriate pore size distribution.
REFERENCES:
patent: 4062873 (1977-12-01), Harrison
patent: 4064070 (1977-12-01), Harrison
patent: 4293498 (1981-10-01), Lemanski et al.
patent: 4294722 (1981-10-01), Bremer et al.
patent: 4333853 (1982-06-01), Milberger et al.
patent: 4371702 (1983-02-01), Bither, Jr.
patent: 4562269 (1985-12-01), Moorehead
patent: 4713464 (1987-12-01), Fumagalli et al.
patent: 4849539 (1989-07-01), Bergna
patent: 5108974 (1992-04-01), Davis
patent: 7157403 (2007-01-01), Weiguny et al.
patent: 1059297 (1992-03-01), None
patent: 1133755 (1996-10-01), None
patent: 1282631 (2001-02-01), None
patent: 1303741 (2001-07-01), None
patent: 7-10353 (1995-02-01), None
patent: 9-52049 (1997-02-01), None
patent: WO 03/078059 (2003-09-01), None
English Abstract of JP 9-52049 dated Feb. 15, 1997.
Partial English Translation of JP 7-10353 dated Feb. 8, 1995.
Partial English Translation of CN 1059297 dated Mar. 11, 1992.
Partial English Translation of CN 1133755 dated Oct. 23, 1996.
Partial English Translation of CN 1282631 dated Feb. 7, 2001.
Partial English Translation of CN 1303741 dated Jul. 18, 2001.
Hailey Patricia L
Ladas & Parry LLP
New Tianjin T. & D. Co., Ltd.
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