Silica-particles containing alumina, process for preparing same and the use thereof
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United States of America Patent
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Jan 19, 1988
Grant Date -
N/A
app pub date -
Oct 20, 1986
filing date -
Oct 29, 1985
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Amorphous, substantially spherical silica particles obtained by acidic hydrolysis of substantially spherical synthetic crystalline calcium silicates having a size of from 20 to 120 microns are coated with a layer comprising silica and alumina. The silica particles obtained may be directly employed as catalysts for the oligomerization of olefins and, having been loaded with platinum, as hydrocracking catalysts.
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