Analysis of the composition of a gas or a gas flow into a chemical reactor and a method for the production of chlorosilanes in a fluidized bed reactor

摘要

The object of the invention is a method for the analysis of the composition of a gas or a gas stream containing alcl3, in a chemical reactor, comprising separation of alcl3 from the gas and subsequent examination of the gas by means of gas chromatography or spectroscopy.The present invention also relates to a process for the production of chlorosilanes in a fluidized bed reactor with a height of the reactor h0, in which the harvested hcl reacts with silicon, characterized in that a temperature profile in the fluidized bed reactor is greater than s1 (h / h0) = (a1, b1) · (1 / (1 + exp (– c1 ((h / h0) – d1)))) + b1 and is smaller than s2 (h / h0) = (a2, b2) · (1 / (1 + exp (– c2 ((h / h0) – d2)))) + b2, wherein a1 = 100°C, a2 = 300°C, b1 = 300°C, b2 = 400°C, c1 = 50, c2 = 20, d1 = 0,2, d2 = 0,8 is.