Patent ID: 9463982
Filing Date: 2016-10-11
CPC Classification: C01B

Claim Text:
1. A method for reducing fouling of a hydrogenation reactor in a hydrochlorosilane production plant comprising a silicon tetrachloride superheater having iron-containing walls and a hydrogenation reactor, the method comprising: including at least 0.2 mol % of trichlorosilane in a silicon tetrachloride process stream comprising silicon tetrachloride and hydrogen in the silicon tetrachloride superheater having iron-containing walls, so as to inhibit HCl formation in the silicon tetrachloride superheater when operating at a temperature sufficient to cause a reaction between the silicon tetrachloride and the hydrogen to produce HCl in the absence of the at least 0.2 mol % of trichlorosilane, thereby inhibiting FeCl