Process for preparation of a catalyst for polymerization of olefins

US11851506B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

• Gurmeet Singh · Faridabad, IN
• Rashmi Rani · Faridabad, IN
• Sukhdeep Kaur · Boise, US
• Yajnaseni Biswas · Sindhar, IN
• Anju Chopra · Faridabad, IN
• Gurpreet Singh Kapur · Faridabad, IN
• Sankara Sri Venkata RAMAKUMAR · Faridabad, IN

Key dates

• Filing date: Sep 27, 2022
• Grant date: Dec 26, 2023
• Expiry date: Sep 27, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F2410/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

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. %.