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