Acrylamide polymer used to reduce fines in aluminum phosphate gel

US4535070A · kind A · utility

Assignee

• Phillips Petroleum Company · US

Inventors

• Max P. McDaniel · Bartlesville, US
• Marvin M. Johnson · Bartlesville, US
• Gil R. Hawley · Canton, US
• John Westerman · Wadsworth, US
• Paul D. Smith · Redondo Beach, US

Key dates

• Filing date: Dec 23, 1983
• Grant date: Aug 13, 1985
• Expiry date: Dec 23, 2003

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F10/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

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 TiCl.sub.3, TiCl.sub.4 /MgCl.sub.2 and other conventional catalysts typically associated with polymerization of propylene.