Oblon, Spivak, McClelland, Maier & Neustadt
Preparation of bis-(4-chlorophenyl) sulfone
 Bis-(4-chlorophenyl) sulfone is prepared by reacting chlorobenzene with sulfuric acid at from 200.degree. to 250.degree. C. by a process in which a condensing agent is added. 
BASF Aktiengesellschaft
C
C07C
inventional
Peter Heinz Michael
Neumann Eilingsfeld Stumpp