In a cyclic urea process, CO2 and excess NH3 are reacted in a urea synthesis autoclave (201) and the crude urea melt is fed to a stripper (202) for separating unreacted CO2 and NH3 therefrom. In a later step, the CO2 and NH3 are absorbed in a liquid absorption stage (203) and the resulting absorbate is fed back to the autoclave (201) while fresh CO2 and NH3 are fed into the autoclave. At a desired...

A silyl phosphate which is an improved neutralizing agent for alkali metal hydroxides in silicone reactions, comprising the reaction product of a linear siloxane, and a phosphorous oxyhalogen or phosphoric acid. The reaction products of the phosphorous oxyhalogen over phosphoric acid are preferred. Such a reaction product is preferred for the continuous neutralization of alkali metal hydroxides in...