Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Reexamination Certificate
2011-01-04
2011-01-04
Le, Emily M (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
C502S239000, C502S350000, C423S608000, C423S610000, C106S287340, C427S162000, C427S213300, C427S215000, C427S219000
Reexamination Certificate
active
07863215
ABSTRACT:
Disclosed is a photocatalyst comprising a photocatalytically active base, and a silicon oxide film covering the base and substantially having no pores. The alkali metal content of the photocatalyst is not less than 1 ppm but not more than 1,000 ppm. Also disclosed is a method for producing such a photocatalyst wherein when a photocatalytically active base present in an aqueous medium is coated with a silicon oxide film by using a silicate, the pH of the aqueous medium containing both the photocatalytically active base and the silicate is maintained at 5 or below.
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Horiuchi Nobuhiko
Miyazoe Satoru
Nabeta Takashi
Buchanan & Ingersoll & Rooney PC
Le Emily M
Liao Diana J
Mitsui Chemicals Inc.
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