The process for producing aromatic polyether sulfones via reaction of a dichlorodiphenyl sulfone component with a bisphenol component as monomers in the presence of alkali metal carbonate in the melt in the absence of solvents and diluents comprises carrying out the reaction in a mixing kneader which is operated with a shear rate in the range from 5 to 500 s\u22121. A follower attaches to a tail end of the pin. The active suspension system includes a valve box that is fluidly coupled to each chamber of the lower cylinder. By performing non-coherent demodulation on pilot signals received on a first subset of said set of communications resources coding information is recovered. The invention also relates to a process and intermediates for preparing these compounds.