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:
Apr. 22, 2008
Filed:
Aug. 06, 2004
Yuanyi Yang, Beijing, CN;
Zhenhu LI, Beijing, CN;
Hongbin Du, Beijing, CN;
Zhiwu Wang, Beijing, CN;
Zhong Tan, Beijing, CN;
Tianyi LI, Beijing, CN;
Qi Chen, Beijing, CN;
Wei Chen, Beijing, CN;
Yuanyi Yang, Beijing, CN;
Zhenhu Li, Beijing, CN;
Hongbin Du, Beijing, CN;
Zhiwu Wang, Beijing, CN;
Zhong Tan, Beijing, CN;
Tianyi Li, Beijing, CN;
Qi Chen, Beijing, CN;
Wei Chen, Beijing, CN;
China Petroleum & Chemical Corp., Beijing, CN;
Beijing Research Institute of Chemical Industry, Beijing, CN;
Abstract
The present invention provides a process for preparing particles of magnesium halide/alcohol adduct, said process comprising: preparing a melt of magnesium halide/alcohol adduct in an inert liquid medium, dispersing the mixture of the inert liquid medium and the melt of the magnesium halide/alcohol adduct by high-speed rotation under a high-gravity field to obtain a dispersion of magnesium halide/alcohol adduct melt; and the cooling the dispersion of the melt to form the particles of magnesium halide/alcohol adduct. The present invention further relates to the particles of magnesium halide/alcohol adduct prepared by the process of the present invention and the use thereof in the preparation of catalysts for olefin polymerization.