公开(公告)号：US20150361189A1

公开(公告)日：2015-12-17

申请号：US14764451

申请日：2013-07-11

Applicant: PETROCHINA COMPANY LIMITED

Inventor： Jianjun YI ,  Qigu HUANG ,  Hongming LI ,  Mingge ZHANG ,  Zhi LIU ,  Wei LIU ,  Yisen WANG ,  Weisong CUI

IPC: C08F10/02

CPC classification number: C08F10/02 ,  C08F110/02 ,  C08F4/6565 ,  C08F210/16 ,  C08F210/14

Abstract: The present invention relates to preparation and application of an olefin polymerization catalyst. The main catalyst is composed of a carrier, a transition metal halide, and an organic alcohol compound. The transition metal halide is obtained by in-situ reaction between titanate and silicon halide. The molar ratio of the carrier to the transition metal halide to the organic alcohol compound is 1 to 0.01-20 to 0.1-6. The molar ratio of the titanate to the silicon halide is 1 to 0.5-2. The co-catalyst is an organo-aluminum compound. The molar ratio of the transition metal halide in the main catalyst to the co-catalyst is 1 to 30-500. Particles of the catalyst are good in morphology and are in a spherical shape. The catalyst has high activity and the polymer obtained by using the catalyst has a high molecular weight. The catalyst is applicable to a slurry method, a vapor phase polymerization process, or a combined polymerization process. The preparation method thereof is simple, has low requirements on devices, and produces little pollution on the environment.

Abstract translation: 本发明涉及烯烃聚合催化剂的制备和应用。 主催化剂由载体，过渡金属卤化物和有机醇化合物组成。 过渡金属卤化物是通过钛酸盐和卤化硅之间的原位反应获得的。 载体与过渡金属卤化物与有机醇化合物的摩尔比为1〜0.01-20〜0.1-6。 钛酸酯与硅卤化物的摩尔比为1〜0.5〜2。 助催化剂是有机铝化合物。 主催化剂中过渡金属卤化物与助催化剂的摩尔比为1〜30〜500。 催化剂颗粒形态好，呈球形。 该催化剂具有高活性，通过使用该催化剂得到的聚合物具有高分子量。 催化剂适用于浆料法，气相聚合法或组合聚合法。 其制备方法简单，对装置要求低，对环境污染少。