US 11,912,809 B2
High porosity fluorided silica-coated alumina activator-supports and uses thereof in metallocene-based catalyst systems for olefin polymerization
Max P. McDaniel, Bartlesville, OK (US); Eric D. Schwerdtfeger, Bartlesville, OK (US); Qing Yang, Bartlesville, OK (US); Carlos A. Cruz, Kingwood, TX (US); Jinping J. Zhou, Bartlesville, OK (US); Anand Ramanathan, Bartlesville, OK (US); Kathy S. Clear, Bartlesville, OK (US); and Zhihui Gu, Bellarie, TX (US)
Assigned to Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed by Chevron Phillips Chemical Company LP, The Woodlands, TX (US)
Filed on Jun. 1, 2023, as Appl. No. 18/327,119.
Claims priority of provisional application 63/348,044, filed on Jun. 2, 2022.
Prior Publication US 2023/0391897 A1, Dec. 7, 2023
Int. Cl. B01J 23/00 (2006.01); C08F 4/02 (2006.01); B01J 29/06 (2006.01); B01J 35/10 (2006.01); C08F 210/16 (2006.01)
CPC C08F 4/025 (2013.01) [B01J 29/06 (2013.01); B01J 35/1019 (2013.01); B01J 35/1042 (2013.01); B01J 35/1047 (2013.01); B01J 35/1061 (2013.01); C08F 210/16 (2013.01); C08F 2420/00 (2013.01)] 16 Claims
 
1. A fluorided silica-coated alumina having:
a bulk density from 0.15 to 0.37 g/mL;
a total pore volume from 0.85 to 2 mL/g;
a BET surface area from 200 to 500 m2/g; and
an average pore diameter from 10 to 25 nm and/or from 80 to 99% of pore volume in pores with diameters of greater than 6 nm.