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