Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Reexamination Certificate
2004-04-14
2010-10-05
Nguyen, Cam N (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
C502S305000, C502S311000, C502S312000, C502S313000, C502S314000, C502S315000, C502S316000, C502S317000, C502S318000, C502S321000
Reexamination Certificate
active
07807600
ABSTRACT:
A catalyst for acrylonitrile synthesis is disclosed which is composed of particles containing silica and a composite oxide including at least molybdenum. When the Mo/Si atomic ratio in bulk composition of the catalyst is represented by A and the Mo/Si atomic ratio in surface composition of the particles is represented by B, B/A is not more than 0.6.
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Izumi Jinko
Mizutani Koichi
Watanabe Seigo
Yanagita Motoo
Dia-Nitrix Co., Ltd.
Nguyen Cam N
Oblon, Spivak McClelland, Maier & Neustadt, L.L.P.
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