The present invention is a method of producing substantially dry water insoluble polymers from poly alkyl esters of vinylic monomers for use in a method for the clarification of red mud-containing liquors generated in the Bayer process for the recovery of alumina from bauxite ore. In some embodiments the control element is an integrated circuit such as a 555 integrated circuit. 5% and 20% organic peroxide and a stabilizer for preventing degradation of said peroxide in the solution. The communication device may detect energy associated with BLE communication via scan of all or some of channels used for BLE communication.