Continuous hydrolysis of organohalogenosilanes

Claim 1

THE PROCESS OF PREPARING ORGANOPOLYSILOXANES FROM ORGANOCHLOROSILANES OF THE TYPE RNSICL4-N WHERE R IS A MEMBER OF THE CLASS CONSISTING OF ALKYL AND ARYL RADICALS AND N HAS A VALUE OF FROM 1 TO 3, WHICH PROCESS COMPRISES (1) INTRODUCING WATER AND AN ORGANOCHLOROSILANE OF THE ABOVE TYPE INTO A CIRCULATING SYSTEM TO EFFECT HYDROLYSIS OF THE ORGANOCHLOROSILANE AND TO FORM A MIXTURE COMPRISING AN ORGANOPOLYSILOXANE AND AN ACID-CONTAINING WATER, THERE BEING USED SUFFICIENT WATER SO THAT (A) THE RESULTING HYDROCHLORIC ACID HAS CONCENTRATION RANGE OF FROM 25 TO 36%, (B) ESSENTIALLY ALL THE SILICON-BONDED CHLORINE ATOMS ARE HYDROLYZED, AND (C) EVOLUTION OF GASEOUS HCL IS SUBSTANTIALLY REPRESSED, (2) CONTINUING SAID INTRODUCTION OF WATER AND ORGANOCHLOROSILANE UNTIL PARTIAL OVERFLOW OF THE FORMED ORGANOPOLYSILOXANE AND ACID-CONTAINING WATER IS EFFECTED, (3) SEPARATING THE FORMED ORGANOPOLYSILOXANE FROM THE ACID-CONTAINING WATER, (4) RECYCLING THE RESIDUAL ACID-CONTAINING WATER SUBSTANTIALLY FREE OF ANY SILICON COMPOSITION AND DIFFUSING IT INTO FRESHLY FED WATER AND ORGANOCHLOROSILANE INTRODUCED INTO THE CIRCULATING SYSTEM.