Particle size distribution control through internal donor in Ziegler-Natta catalyst

US9644050B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

• Sukhdeep Kaur · Boise, US
• Bhasker Bantu · Faridabad, IN
• Gurmeet Singh · Faridabad, IN
• Naresh Kumar · Barwala, IN
• Naresh Shashikant · Barwala, IN
• Gurpreet Singh Kapur · Faridabad, IN
• Biswajit Basu · Faridabad, IN
• Ravinder Kumar Malhotra · Faridabad, IN

Key dates

• Filing date: Jul 8, 2015
• Grant date: May 9, 2017
• Expiry date: Nov 22, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F110/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention describes a process for controlling particle size of a catalyst composition. The process comprising the steps of contacting an internal donor with an organomagnesium precursor solution to form an intermediate solution and treating the intermediate solution with a transition metal compound to form a catalyst composition, wherein particle size of the catalyst composition is controlled by controlling a contact time of the internal donor with the precursor solution during formation of the intermediate solution.