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Title:
SPHERICAL CARRIERS FOR OLEFIN POLYMERIZATION CATALYST, CATALYST COMPONENTS, CATALYST, AND PREPARATION METHODS THEREFOR
Document Type and Number:
WIPO Patent Application WO/2015/055136
Kind Code:
A1
Abstract:
Spherical carriers for an olefin polymerization catalyst, catalyst components, a catalyst, and preparation methods therefor are disclosed. The method for preparing spherical carriers comprises the following steps: (1) reacting, in the presence of at least one polymer dispersion stabilizer, magnesium halide and an organic compound containing active hydrogen so as to form a coordination complex solution; (2) reacting said solution and an alkylene oxide-type compound, and separating out the solid pellets; and, (3) recovering the solid pellets to obtain spherical carriers. When the catalyst prepared with the present spherical carriers is used in propylene polymerization, said catalyst exhibits high polymerization activity and stereospecificity.

Inventors:
LI WEILI (CN)
XIA XIANZHI (CN)
LIU YUEXIANG (CN)
LING YONGTAI (CN)
ZHAO JIN (CN)
ZHANG JIGUI (CN)
GAO FUTANG (CN)
GAO PING (CN)
TAN YANG (CN)
PENG RENQI (CN)
ZHANG ZHIHUI (CN)
LIN JIE (CN)
DUAN RUILIN (CN)
MA CHANGYOU (CN)
Application Number:
PCT/CN2014/088806
Publication Date:
April 23, 2015
Filing Date:
October 17, 2014
Export Citation:
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Assignee:
CHINA PETROLEUM & CHEMICAL (CN)
BEIJING RES INST CHEM IND (CN)
International Classes:
C08F4/649; C08F10/00; C08F10/06
Domestic Patent References:
WO2011044760A12011-04-21
WO1987007620A11987-12-17
WO1993011166A11993-06-10
Foreign References:
CN102453128A2012-05-16
US4421674A1983-12-20
US4469648A1984-09-04
US5100849A1992-03-31
US6020279A2000-02-01
US4399054A1983-08-16
EP0395383A21990-10-31
US6127304A2000-10-03
US6323152B12001-11-27
CN102040681A2011-05-04
CN102040680A2011-05-04
CN1453298A2003-11-05
CN1436796A2003-08-20
Other References:
See also references of EP 3059263A4
Attorney, Agent or Firm:
CCPIT PATENT AND TRADEMARK LAW OFFICE (CN)
中国国际贸易促进委员会专利商标事务所 (CN)
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