Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2006-10-31
2006-10-31
Nguyen, Cam N. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S248000, C502S255000, C502S305000, C502S312000, C502S313000, C502S314000, C502S316000, C502S318000, C502S321000
Reexamination Certificate
active
07129195
ABSTRACT:
The invention relates to a method for the heterogenically catalyed gas-phase partial oxidation of precursor compounds of (meth)acrylic acid in a fixed catalyst bed, containing as the catalyst an activated mass of mixed oxide, shaped to form a geometric body. Said geometric body is a geometric base body, into whose surface a cavity is incorporated.
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Arnold Heiko
Felder Raimund
Petzoldt Jochen
Unverricht Signe
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