{TAIL ~ The reaction product} is crystallized by heating the slurry in the drownout tank under reflux at a temperature of about 93° C. while stirring for at least about 6 hours, and up to {HEAD ~ about 16 hours} 
{ TAIL ~ The reaction product } is crystallized by heating the slurry in the drownout tank under reflux at a temperature of about 93 ° C. while stirring for at least about 6 hours , and up to { HEAD ~ about 16 hours }
TAIL 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 OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD