MULTI COMPONENT MIXTURE OF MAGNESIUMALCOHOLATES, MAGNESIUMHALIDES AND ALCOHOL, PROCESSES TO MAKE THEM AND THEIR USE IN PROCESSES TO MAKE OLEFIN POLYMERIZATION CATALYST

摘要

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 viscuous.