Patent ID: 8252241
Filing Date: 2012-08-28
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 hydrogen chloride gas to the reactor so that the hydrogen chloride gas reacts with the metallurgical grade silicon powder while the metallurgical grade silicon powder is fluidized by the hydrogen chloride gas; a gas discharge device that discharges generated gas containing trichlorosilane from the reactor; a plurality of gas flow controlling members each having on an upper portion an upper diameter-enlarged portion and each having on a lower portion a lower diameter-enlarged portion and each of the plurality of gas flow controlling members being suspended in a central space of the reactor along the vertical direction; a first member connected to the reactor for suspending the plurality of gas flow controlling members at the upper diameter-enlarged portion; a second member connected to the reactor for detachably disposing thereon the lower diameter-enlarged portion of the plurality of gas flow controlling members; and a heat transfer tube which is installed vertically in an annular space enclosing the central space of the reactor and through which a heating medium passes.