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Method and system for producing low carbon ferrochrome from chromite ore and low carbon ferrochrome produced thereby
Method and system for producing low carbon ferrochrome from chromite ore and low carbon ferrochrome produced thereby
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机译:由铬铁矿矿石生产低碳铬铁的方法和系统及由此生产的低碳铬铁
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摘要
A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.
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