| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an apparatus for producing silicon, with which fine and uniform-sized silicon with high purity can be obtained with minimum energy and high efficiency, and moreover in large quantity. <P>SOLUTION: The apparatus for producing fine particles of high purity silicon comprises: (1) a device for heating and evaporating metallic zinc above the boiling point of zinc and simultaneously supplying zinc gas at above 1,000°C by heating the generated gas; (2) a device for supplying liquid silicon tetrachloride into the zinc gas; (3) a device for generating a reaction gas including silicon particles by making the zinc gas and the liquid silicon tetrachloride react with each other by mix-stirring them; (4) a device for flocculating and growing silicon particles which are generated in the gas by lowering the temperature of the reaction gas to 1,000°C or lower; and (5) a device for recovering precipitates for precipitating and recovering silicon in an aqueous solution by bringing the gaseous substance including the grown silicon particles in the reaction gas into contact with an aqueous solution of zinc chloride. <P>COPYRIGHT: (C)2012,JPO&INPIT |
