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2. R.D. Eliasen, The operation of a nickel solvent extraction and electrowinning circuit, in: Proc. Symposium on Solvent Extraction and Ion Exchange: AIChE, Tucson, AZ, 1973.
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5. Kennecott Process for recovery of copper, nickel, cobalt and molybdenum from ocean nodules;Agarwal;Min. Eng. (Littleton, CO),1979