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The process of reducing silicon from SiO2 includes a stage that involves the formation of a gas phase which contains lower oxides of silicon and carbon. The primary product is silicon carbide, which is formed from the reaction of gaseous silicon oxide with carbon on the surface of the reducing agent. It is shown that it is possible to obtain crystalline silicon which meets the requirements of the...
One effective method of reducing the cost of making refined grades of ferrochromium is the use of inexpensive silicon-aluminum reducing agents obtained from wastes formed in the coal-mining industry. A silicon-aluminum alloy is used to reduce chromium ore. In the course of smelting with the complex silicon-aluminum alloy, melting of the charge materials is accompanied by the reaction of magnesia-bearing...
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