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Ferro Nickel Ceramic Lined Ball Mill

Metallothermic Reduction Initially niobium metal was produced by PM methods which involved high-temperature vacuum sintering and carbon reduction.However in the early 1960s aluminothermic reduction and electron beam purification came into general use. At present the basic process for the recovery of niobium along with recovery from columbite and tantalite ores shown in Fig. 23.

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