Patent ID: 8809746

Claim:
An apparatus for producing trichlorosilane from a raw gas that includes silicon tetrachloride and hydrogen, comprising: a reaction chamber into which the raw gas is introduced to produce a reaction product gas containing trichlorosilane and hydrogen chloride; a plurality of heaters that are disposed inside the reaction chamber to heat the raw gas and that are elongated in the vertical direction; and a plurality of electrodes connected to basal portions of the plurality of heaters, wherein the plurality of heaters include first heaters each constituted of a portion defined as a first exothermic portion that generates heat by electrification through the electrodes; and second heaters each having a portion defined as a second exothermic portion that is shorter than that of the first heaters and generates heat by electrification through the electrodes, and a radiation plate that is made of a non-exothermic portion and is connected to an upper end or a lower end of the second exothermic portions of the second heaters, wherein the first heaters and the second heaters are disposed such that a partial portion of the first exothermic portion of the first heaters faces the radiation plates of the second heaters; the reaction chamber has an introducing port of the raw gas on a side to which the second exothermic portions of the second heaters are arranged in positioning relative to the radiation plates of the second heaters; and the reaction chamber has a discharge port of the reaction product gas on a side to which the radiation plates of the second heaters is arranged.