Abstract: A fluidized bed reactor (FBR) for producing chlorosilane mixture, which has high contents of tri-chlorosilane (TCS), by hydro chlorination of metallurgical silicon (MGSI) and a method of producing high contents of TCS stably with the FBR is disclosed. A cooling jacket, which surrounds the lower reactor section, combined with inert initial charging material, which does not react with HCl during the reaction at a temperature of above 300° C. and pressure of above 5 bar, controls the extreme exothermal heat of the reaction. In addition to this, combination of an optimized gas distributor and a feeder that can feed the metallurgical silicon with accuracy of ±5% enabled to realize uniform temperature profile within the reaction zone within ±1 degree ° C. deviation at 350° C. of average reaction temperature and at 5 bar of reaction pressure.

Abstract: A fluidized bed reactor (FBR) for producing tri-chlorosilane (TCS) from metallurgical silicon (MGSI) and method of producing TCS stably with the FBR is disclosed.

Abstract: A novel two wheel-hand truck for easy, semi-automatic, loading and unloading, is equipped with a means, which is installed in the platform of the hand-truck, including but not limited to, double layers, upper and lower layer, of staggered rollers in the platform, a synthetic rubber belt optionally surrounding the upper layer rollers to fill the clearances, and two wheels. The rollers are constructed of cast iron having outer diameter of 3 to 30 mm. Diameter of all the rollers of the upper layer and the lower layer may be the same. More than one row of the double layers may be installed in row in a platform. The front edge of the platform is tapered for easy access of the bottom of the luggage to be loaded.