公开(公告)号：US11851506B2

公开(公告)日：2023-12-26

申请号：US17953459

申请日：2022-09-27

申请人： Indian Oil Corporation Limited

发明人： Gurmeet Singh ,  Rashmi Rani ,  Sukhdeep Kaur ,  Yajnaseni Biswas ,  Anju Chopra ,  Gurpreet Singh Kapur ,  Sankara Sri Venkata Ramakumar

IPC分类号： C08F110/02 ,  C08F4/654

CPC分类号： C08F110/02

摘要： The present invention relates to a process for preparation of a catalyst for polymerization of olefins. The catalyst has a particle size of between 5 to 30 microns with activity ranging from 3-4 Kg (co)polymer per g of catalyst and excellent hydrogen response. The method for preparation of the catalyst comprises the steps of: a) contacting a liquid magnesium complex, an electron donor, and a titanium halide compound to form a solution; b) obtaining the solid uniform catalyst particles by precipitation; and c) washing the catalyst particles to obtain solid uniform catalyst., for producing (co)polymer of ethylene with other olefins have fines less than 10 wt. %.