Acrylamide polymer used to reduce fines in aluminum phosphate gel

摘要

Aluminum phosphate having reduced fines is produced by gelling said aluminum phosphate in the presence of an acrylamide polymer. The resulting support is of primary utility as a base for a chromium olefin polymerization catalyst but is also suitable as a support for titanium catalysts such as TiCl3, TiCl4/MgCl2 and other conventional catalysts typically associated with polymerization of propylene.