The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 31, 1983
Filed:
Oct. 26, 1981
Applicant:
Inventors:
Joseph J Scholten, Sittard, NL;
Lambertus J vande Leemput, Echt, NL;
Assignee:
Stamicarbon, B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C10B / ;
U.S. Cl.
CPC ...
252458 ; 252451 ; 423338 ;
Abstract
A process is provided for the preparation of an improved porous silicon dioxide catalyst support, wherein a silicon dioxide prepared by flame hydrolysis is converted into an aqueous gel and thereafter admixed with at least 15 vol. % of a C.sub.1 to C.sub.5 alkanol, followed by spray-drying of the resulting aqueous/alcohol silica gel. The resulting catalyst support is particularly useful with chromium oxide catalysts for polyalkene polymerizations.