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