A METHOD FOR PREPARATION OF A SOLID CATALYST FOR POLYMERIZATION OF PROPYLENE

摘要

PURPOSE: A method for preparing a solid catalyst for the polymerization of propylene is provided to obtain a solid catalyst capable of polymerizing polypropylene with excellent tacticity while exhibiting high melt flow index and wide molecular weight distribution. CONSTITUTION: A method for preparing a solid catalyst for the polymerization of propylene comprises the steps of: (i) reacting dialkoxymagnesium with titanium halide in the presence of organic solvents; (ii) injecting an internal electron donor selected from chemical formula (III) and an internal electron donor selected from chemical formula (IV) into the resultant of step (i) while raising the temperature to 80~130°C; and (iii) reacting the resultant of step (ii) with titanium halide at a temperature of 80~130°C and washing the resultant.