Hydrolysis of chlorosilanes

Chlorosilanes are hydrolyzed to a hydrolysate in a looped system containing a hydrolysis reactor, an HCl purifier, a wash means, and a separator. The steps of the method comprise: (i) feeding chlorosilanes from an external source to the hydrolysis reactor, (ii) feeding water from an external source to the wash means, (iii) feeding a high concentration aqueous HCl of at least 10 percent by weight HCl from an external source to the hydrolysis reactor between the wash means and the hydrolysis reactor, (iv) removing anhydrous hydrogen chloride from the HCl purifier, (v) removing hydrolysate from the wash means, and (vi) removing a low concentration aqueous hydrogen chloride of 0.1 to less than 10 percent by weight HCl from the looped system.Chlorosilanes are hydrolyzed to a hydrolysate in a looped system containing a hydrolysis reactor, an HCl purifier, a wash means, and a separator. The steps of the method compr.