Propylene polymerization catalyst component, catalyst and preparation method thereof

• Main Authors: XU YUNBO, ZHANG CUILING, LIU QIANG, DENG SHOUJUN, XU RENWEI, LIU YUN, ZHANG PINGSHENG, LIU XIAOYAN, WANG XIA, SONG SAINAN, MENG XIA, LI GUANGQUAN, HUANG CHUNBO, FAN JIE
• Format: Patent
• Language: Chinese; English
• Published: 08.07.2022
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

The present invention relates to a propylene polymerization catalyst component, the component is an internal electron donor of a catalyst, the internal electron donor is an isophthaloyl hydrazone compound represented by a general formula (I), in the formula, substituent groups R1-R4 are the same or different, and are respectively and independently selected from H, a C1-C20 straight chain or branched chain alkyl group, a C3-C20 cycloalkyl group, a C6-C20 aryl group, a C7-C20 alkaryl group or a C7-C20 alkoxy aryl group. The invention also relates to a propylene polymerization catalyst and a preparation method thereof. 本发明涉及一种丙烯聚合催化剂组分，该组分为催化剂的内给电子体，该内给电子体为通式(Ⅰ)所示的间苯二甲酰腙类化合物：式中，取代基R1～R4相同或不同，分别独立地选自H、C1～C20的直链或支链烷基、C3～C20的环烷基、C6～C20的芳基、C7～C20的烷芳基或C7～C20的烷氧基芳基。本发明还涉及一种丙烯聚合催化剂及其制备方法。