The process 1 for producing polypropylene which comprises polymerizing propylene in the presence of a catalyst comprising {HEAD ~ magnesium} containing {TAIL ~ solid titanium catalyst component} obtained by contacting magnesium chloride, titanium tetrachloride and di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum and diphenyldimethoxy silane 
containing
The process 1 for producing polypropylene which comprises polymerizing propylene in the presence of a catalyst comprising { HEAD ~ magnesium } containing { TAIL ~ solid titanium catalyst component } obtained by contacting magnesium chloride , titanium tetrachloride and di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum and diphenyldimethoxy silane
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