Patent ID: 8187551
Filing Date: 2012-05-29
Classification: B01J,C01B

Abstract:
1. An apparatus for manufacturing trichlorosilane by decomposition reacting polymers with hydrogen chloride at a high temperature, the apparatus comprising: a decomposition furnace into which the polymers including high-boiling chlorosilanes generated in a polycrystalline silicon manufacture process, a trichlorosilane manufacture process, or a conversion process and hydrogen chloride are introduced, the decomposition furnace comprising: the apparatus further comprising a fin which is formed integrally with at least one of an outer peripheral surface of the center tube or an inner peripheral surface of the decomposition furnace, and which leads the polymer and the hydrogen chloride to the lower-end opening portion of the center tube so as to stir the polymer and the hydrogen chloride, a pressurized-gas injection pipe which injects a pressurized gas into the decomposition furnace; and a discharge pipe which discharges a fluid in the decomposition furnace purged by the pressurized gas.