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 magnesium chloride, titanium tetrachloride and {TAIL ~ di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum} and diphenyldimethoxy silane 
obtained by contacting
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 magnesium chloride , titanium tetrachloride and { TAIL ~ di 2 ethylhexyl indane 2,3 dicarboxylate triethylaluminum } and diphenyldimethoxy silane
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH