removing the chlorine from the intermediary carbonaceous reaction product by heating the intermediary reaction product in air at a temperature of at least 300° C. for a time sufficient to oxidize and remove {HEAD ~ carbon} and chlorine to produce {TAIL ~ a metal oxide product} 
removing the chlorine from the intermediary carbonaceous reaction product by heating the intermediary reaction product in air at a temperature of at least 300 ° C. for a time sufficient to oxidize and remove { HEAD ~ carbon } and chlorine to produce { TAIL ~ a metal oxide product }
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 OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL