Precursor for catalyst, process for preparing the same and its use thereof

US9890229B2 · kind B2 · utility

Assignee

• Indian Oil Corporation Limited · IN

Inventors

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

Key dates

• Filing date: Sep 24, 2013
• Grant date: Feb 13, 2018
• Expiry date: May 13, 2034

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/28
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention provides a liquid organomagnesium precursor having formula {Mg(OR′)X}.a{MgX2}.b{Mg(OR′)2}.c{R′OH}, wherein R′ is selected from a hydrocarbon group, X is selected from a halide group, and a:b:c is in range of 0.1-99.8:0.1-99.8:0.1-99.8, and a process for preparing the same. The said process comprises contacting a magnesium source with an organohalide and alcohol in a solvent to form the liquid organomagnesium precursor. The present invention also provides a catalyst system using the organomagnesium precursor and its use thereof for polymerization of olefins. An illustrative example of the claimed process to make the organomagnesium precursor is: At 25° C., magnesium (powder or turnings) is added to organohalide, followed by alcohol in toluene. After heating to 90° C. and keeping there for 6 h the solution became viscous.