Patent ID: 8101131
Filing Date: 2012-01-24
Classification: B01J,C01B

Abstract:
1. A chlorosilanes purifying apparatus comprising: a container filled with sodium chloride; a heating device for heating a layer of sodium chloride in the container; a gas supplying tube for supplying gas containing chlorosilanes produced by a reaction between metallurgical grade silicon and hydrogen chloride in the container; and a gas recovery tube for exhausting the gas that had been passed through the layer of the sodium chloride in the container; wherein a jacket for covering at least the outer surface of the bottom portion of the container is formed, a heat medium is supplied to the jacket, a double salt exhausting tube for exhausting generated double salt is connected to the bottom portion of the container to penetrate the jacket, a cylindrical wall surrounding the double salt exhausting tube is formed at the penetration portion, and the jacket is formed over the outside of the cylindrical wall.