Neutralization method for polyorganosiloxanes

A method for forming a neutralized polyorganosiloxane mixture comprising

• (A) contacting an organosiloxane oligomer with a base effective as a polymerization catalyst at a contact temperature greater than about 20.degree. C. to effect formation of a polyorganosiloxane mixture comprising polyorganosiloxane and the base,
• (B) contacting the polyorganosiloxane mixture with a neutralizing amount of a solid organic acid having a melting point temperature less then the contact temperature of step
• (A) thereby forming a molten organic acid and forming an insoluble adduct of the molten organic acid with the base, where the temperature of the polyorganosiloxane mixture is maintained within a range greater than the melting point temperature of the solid organic acid and the contact temperature of step (A),
• (C) lowering the temperature of the polyorganosiloxane mixture to effect solidification of residual molten organic acid to residual solid organic acid, and
• (D) effecting separation of the insoluble adduct and residual solid organic acid from the polyorganosiloxane.