Patent ID: 8945474
Filing Date: 2015-02-03
Classification: B01J,C01B

Abstract:
1. An apparatus for producing trichlorosilane comprising: a reactor; a raw material supply device that supplies metallurgical grade silicon powder as raw material to the reactor; a gas introduction device that introduces a feed gas, comprising at least a hydrogen gas and STC, to the reactor so that the hydrogen gas and STC reacts with the metallurgical grade silicon powder while the metallurgical grade silicon powder is fluidized by the hydrogen gas and STC; a heater of stacked heater element carbon plates for heating the feed gas before contact with the metallurgical grade silicon power; and a gas discharge device that discharges generated gas containing trichlorosilane from the reactor, wherein the heater element stacked carbon plates are surrounded by graphite wrapped in carbon felt to prevent heat loss by radiation and conduction.