Patent ID: 7998428

Claim:
An apparatus for producing trichlorosilane, comprising: a reaction vessel in which a supply gas containing silicon tetrachloride and hydrogen is supplied to produce a reaction product gas containing trichlorosilane and hydrogen chloride; a heating mechanism that heats the interior of the reaction vessel; a storage container that stores the reaction vessel and the heating mechanism; a gas supply internal cylinder that supplies the supply gas into the reaction vessel; a gas discharge external cylinder, with a gas discharge pipe at one end, that is substantially concentrically disposed outside the gas supply internal cylinder, forming a discharge passageway of the reaction product gas between an outer circumferential surface of the gas supply internal cylinder and an inner circumferential surface of the gas discharge external cylinder; and a cooling cylinder, disposed between the gas discharge pipe and the heating mechanism, that supports the gas discharge external cylinder disposed inside thereof and includes a refrigerant passageway formed therein for circulating a refrigerant.