Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Reexamination Certificate
2011-08-23
2011-08-23
Silverman, Stanley (Department: 1736)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
C502S158000, C502S240000, C502S250000, C502S350000, C502S340000, C502S527140, C502S527240, C501S035000, C501S038000, C501S137000
Reexamination Certificate
active
08003562
ABSTRACT:
A silica base composite photocatalyst that has appropriate water purification capability, inhibiting precipitation of metal oxides; and a process for producing the same. The silica base composite photocatalyst is one composed mainly of a composite oxide phase consisting of an oxide phase (first phase) composed mainly of silica component and a titania phase (second phase) wherein the ratio of presence of the second phase increases aslope toward the surface layer, characterized in that at least one metal oxide selected from among strontium titanate and barium titanate is contained in the second phase.
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Fujii Teruaki
Harada Yoshikatsu
Matsunaga Tadashi
Otani Shinichirou
Yamaoka Hiroyuki
Clark Hill PLC
Liao Diana J
Silverman Stanley
Ube Industries Ltd.
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