Electrodeposition mineral processing

Abstract Ionic liquids as green solvents have shown important application in extraction and separation of metals. In this chapter, the new application perspective and the important fundamental and applied studies of the extraction and separation of metals in ionic liquids which include metal oxide processing, mineral processing, electrodeposition of metals (especially reactive metals such as Al, Mg, and Ti), and extraction of metal ions are presented. 

R. Ding, J. W. Evans and E. M. Doyle, An Investigation of the Electrodeposition of Copper Relevant to the Removal of Dissolved Copper from Semiconductor Industry Waste Streams, in Electrochemistry in Mineral and Metal Processing VI, F. M. Doyle, G. Kelsall, and R. Woods (eds.). The Electrochemical Society, Pennington, NJ, 2003, pp. 326-335. 

Preliminary studies have shown that ionic liquids have potential as solvents and electrolytes for metal recovery, and the feasibility of these solvents has been demonstrated for the extraction of gold and silver from a mineral matrix [7], the recovery of uranium and plutonium from spent nuclear fuel [8], and the electrodeposition and electrowinning of metals (especially, for active metals such as Li, Na, Al, Mg, and Ti) from ionic liquids [9-11], Ionic liquids as green solvents and electrolytes have shown important and potential application in extraction and separation of metals. In this chapter, the new applications and the important fundamental and appUed studies on the extraction and separation of metal in ionic liquids including metal oxides and minerals or ores processing, electrodeposition of metals (mainly for active metals), and extraction and separation of metal ions are described. 

Kun] Kunioshi, C.T., Correa, O.V., de Lima, N.B., Ramanathan, L.C., Effect of Processing Parameters on Stmcture and Properties of Nanocrystalline Fe-Cr-P Electrodeposits in " Ultrafine Grained Materials , Proceedings of a Symposium, TMS - Miner. Metals Mater. Soc., 99-110 (2000) (Morphology, Experimental, Electrochemistry, 24)... 

Nanoscale components can be coated on the material surtaces via electrodeposition. He et al. (2010) demonstrated the use of this technique by mineralizing calcium phosphate on PLA nanofibers. The PLA nanofibers were collected on metal electrodes used for the fabrication process of electrodeposition. The calcium phosphate coating was deposited on the electrodes containing the PLA nanofibers. The authors have also varied the topography of the surface by changing the electrodeposition process parameters. 

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