Abstract:We have attempted to develop a novel process to produce solar-grade silicon (SOG) from diatomaceous earth using wet chemical processes, which have potential advantage to conventional process with long-term, high temperature reactions [1]. The key step of the process is purification of silica solution by solvent extraction with micro-channel device to eliminate light-element impurities such as boron [2], and in order to achieve higher purity, its reaction mechanism should be elucidated in detail. In the present… Show more
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