The process 16 where the reaction is conducted at {HEAD ~ a temperature} between about 220° and {TAIL ~ about 300° C} 
between
The process 16 where the reaction is conducted at { HEAD ~ a temperature } between about 220 ° and { TAIL ~ about 300 ° C }
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL