Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Including means separating reaction chamber into plural...
Reexamination Certificate
2006-04-18
2010-06-08
Zucker, Paul A (Department: 1621)
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Including means separating reaction chamber into plural...
C568S479000, C562S545000
Reexamination Certificate
active
07731919
ABSTRACT:
A fixed bed reactor for gas-phase catalytic oxidation, the fixed bed reactor, comprising a reaction tube filled with a gas-phase oxidation catalyst, wherein a solid acid is placed in an end portion(s) of the reaction tube or between catalyst layers of the catalyst, or mixed in the catalyst; the solid acid is an oxide or a complex oxide containing at least one kind of element selected from the group consisting of aluminum (Al), silicon (Si), titanium (Ti) and zirconium (Zr), and has a shape of sphere, cylindrical column, cylindrical tube, star, ring, tablet or pellet; the catalyst is a complex oxide containing molybdenum (Mo) and bismuth (Bi) or a complex oxide containing molybdenum (Mo) and vanadium (V); and acid strength(H0) of the solid acid meets an inequality: −5.6≦H0≦1.5.
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Nippon Shokubai Co. , Ltd.
Wenderoth , Lind & Ponack, L.L.P.
Zucker Paul A
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