Title: Smelting of rare earth fine ore briquettes (or lumps) to prepare rare earth fine slag and niobium ferric phosphorate
Application Number: 85103967 Application Date: 1985.05.21
Publication Number: 1002892 Publication Date: 1986.09.03
Approval Pub. Date: Granted Pub. Date: 1990.02.28
International Classifi-cation: C22B4/06,C22B5/10,C22B59/00
Applicant(s) Name: Rare Earth Factory No. 1, Baotou Steel Address:
Inventor(s) Name: Cheng Yongju, Dai Kezhi
Attorney & Agent: WU KEYU
Abstract:
     The present invention is a pretreatment to solve the problem of raw materials in manufacturing high rare earth, low titanium intermediate alloy. The fine rare earth ore briquettes (or lumps) are reduced in hot furnace with coke as reductant and silica as slagging agent, the product is rare earth fine slag, and the by-product is Nb-containing ferric phosphorate. The former is a comparatively ideal raw material to manufacture intermediate alloy of rare earth elements by silicon fusion method.
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