Ferroalloy refining: low-grade iron alloy smelting crucible was started around 1860. Later, with the development of blast furnace smelting ferromanganese and silicon below 12% ferrosilicon. Between 1890 - 1910 in France began with the electric arc furnace ferroalloy production. Moisan has used an electric arc furnace for difficult elements to restore the system test. Ferroalloy refining: aluminum heat production due to the high cost of new silicon calcium Buying, desilication more refined method has been applied. Until now carbon, low carbon, low carbon ferrochrome manufacturers of new silicon calcium, carbon and low carbon ferromanganese company novel silicon calcium, manganese metal refining mostly still use this method. Refining ferrochrome PERRIN that the ore, lime and silicon-chromium alloy melt liquid by heat exchange to accelerate the reaction mix is ??off the further development of silicon refining method. The new silicon calcium silicon calcium _ quote _ the new metallurgical greatly greatly by Anyang metallurgical Refractories Limited. Anyang greatly metallurgical Refractories Co., Ltd. (www.aydawei.com) (www.aydwyjgs.com) strong, credible, in Anyang ferroalloy products and other industries and has accumulated a large number of loyal customers. The company better work attitude and constantly improve greatly innovative ideas will lead metallurgy and you hand into the brilliant, for a better future!