The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 25, 2021
Filed:
Oct. 16, 2018
Petrochina Company Limited, Beijing, CN;
Mingge Zhang, Beijing, CN;
Dianjun Li, Beijing, CN;
Shuo Wang, Beijing, CN;
Hongming Li, Beijing, CN;
Yuan Yuan, Beijing, CN;
Jianjun Yi, Beijing, CN;
Tianxu Sun, Beijing, CN;
Jing Mao, Beijing, CN;
Lin Men, Beijing, CN;
Qigu Huang, Beijing, CN;
Runcong Zhang, Beijing, CN;
Jing Wang, Beijing, CN;
Yanpei Nie, Beijing, CN;
PetroChina Company Limited, Beijing, CN;
Abstract
The present invention relates to an olefin coordination polymerization catalyst and a preparation method and application thereof. The olefin polymerization catalyst consists of a primary catalyst mainly prepared from a magnesium compound, a transition metal halide, a C-Calcohol and an electron donor in a molar ratio of 1:1-40:0.01-10:0.001-10, and a co-catalyst which is an organoaluminum compound; and the molar ratio of the transition metal halide to the co-catalyst is 1:10-500. The catalyst of the present invention has a good particle morphology, and a spherical shape, and the catalyst particles do not stick to the vessel wall; the catalyst has high activity and excellent hydrogen regulation performance, and the melt index MFR of polyethylene may be adjusted within 0.01 g/10 min-550 g/10 min; and the catalyst is applicable in slurry polymerization process, loop reactor polymerization process, gas phase polymerization process or combined polymerization process.