US 12,121,880 B2
Catalyst component for olefin polymerization, preparation method thereof, and catalyst including same
Rui Zhang, Beijing (CN); Zhong Tan, Beijing (CN); Qilong Zhou, Beijing (CN); Xiudong Xu, Beijing (CN); Fengkui Li, Beijing (CN); Shanshan Yin, Beijing (CN); Jinhua Yu, Beijing (CN); and Weiwei Song, Beijing (CN)
Assigned to CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
Appl. No. 17/057,980
Filed by CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN); and BEIJING RESEARCH INSTITUTE OF CHEMICAL INDUSTRY, CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing (CN)
PCT Filed May 21, 2019, PCT No. PCT/CN2019/087787
§ 371(c)(1), (2) Date Nov. 23, 2020,
PCT Pub. No. WO2019/223683, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 201810489139.5 (CN), filed on May 21, 2018; application No. 201810489207.8 (CN), filed on May 21, 2018; and application No. 201810489282.4 (CN), filed on May 21, 2018.
Prior Publication US 2021/0205787 A1, Jul. 8, 2021
Int. Cl. C08F 4/64 (2006.01); B01J 21/06 (2006.01); B01J 31/14 (2006.01); C08F 2/06 (2006.01); C08F 4/614 (2006.01); C08F 4/649 (2006.01); C08F 6/00 (2006.01); C08F 6/02 (2006.01); C08F 10/02 (2006.01); C08F 110/02 (2006.01); C08F 110/06 (2006.01)
CPC B01J 21/063 (2013.01) [B01J 31/143 (2013.01); C08F 2/06 (2013.01); C08F 4/649 (2013.01); C08F 6/003 (2013.01); C08F 6/02 (2013.01); C08F 4/6143 (2013.01); C08F 4/6494 (2013.01); C08F 110/02 (2013.01); C08F 110/06 (2013.01); C08F 2410/03 (2013.01)] 20 Claims
 
1. A catalyst component for olefin polymerization, comprising magnesium, titanium, a halogen, an internal electron donor compound and a precipitating auxiliary, wherein the precipitating auxiliary comprises at least one precipitating auxiliary a represented by formula (I):

OG Complex Work Unit Chemistry
wherein R1 and R2 are each independently selected from the group consisting of C1-C10 alkyl, C3-C10 cycloalkyl, C6-C10 aryl and C7-C10 aralkyl, either substituted or unsubstituted; R3 and R4 are each independently selected from the group consisting of C1-C20 alkyl, C3-C20 cycloalkyl, C6-C20 aryl and C7-C20 aralkyl, either substituted or unsubstituted, and wherein a content of the precipitating auxiliary a is larger than zero and lower than 1.0 wt %, based on a total weight of the catalyst component,
the precipitating auxiliary a represented by formula (I) comprising isomers represented by formula (I-a) and/or formula (I-b):

OG Complex Work Unit Chemistry