Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Plural component system comprising a - group i to iv metal...
Reexamination Certificate
2011-04-26
2011-04-26
Nguyen, Cam N (Department: 1736)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Plural component system comprising a - group i to iv metal...
C502S111000, C502S113000, C502S244000, C502S245000, C502S326000, C502S327000, C502S330000, C502S331000, C502S332000, C502S333000, C502S334000, C502S339000, C502S355000, C502S415000, C502S439000
Reexamination Certificate
active
07932205
ABSTRACT:
The invention relates to a process for the preparation of a catalyst comprising:a) The preparation of a colloidal oxide suspension of a first metal M1 that consists in the neutralization of a basic solution by an acidic mineral solution that contains the precursor of the metal M1,b) Bringing into contact the precursor of the promoter M2, either directly in its crystallized form or after dissolution in aqueous phase, with the colloidal suspension that is obtained in stage a),c) Bringing into contact the colloidal suspension that is obtained in stage b) with the substrate,d) Drying at a temperature of between 30° C. and 200° C., under a flow of air.The invention also relates to a process for the treatment of an olefinic fraction that uses the catalyst prepared [by] said preparation process.
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Coupard Vincent
Fischer Lars
Petit-Clair Carine
Portejoie Frederic
Uzio Denis
IFP
Millen White Zelano & Branigan P.C.
Nguyen Cam N
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