Lixiviant

A lixiviant is a chemical used in hydrometallurgy to extract particular elements from its ore.[1][2] One of the most famous lixiviants is cyanide, which is used in extracting 90% of mined gold. The combination of cyanide and air converts gold particles into a soluble salt. Once separated from the bulk gangue, the solution is processed in a series of steps to give the metal.[3]

Etymology

The origin is the word 'lixiviate', meaning to leach or to dissolve out, deriving from the Latin lixivium.[4] A lixiviant assists in rapid and complete leaching, for example during in situ leaching. The metal can be recovered from it in a concentrated form after leaching.

Further reading
  • Laughlin, Robert B. (2010). In Situ Leach (ISL) Mining of Uranium (PDF). Stanford University.

References
  1. American Institute of Mining Engineers (1917). Transactions of the American Institute of Mining Engineers, Volume 49. Princeton University: The Institute. p. 617.
  2. Mular, Andrew; Halbe, Doug; Barratt, Derek, eds. (2002), Mineral Processing Plant Design, Practice, and Control Proceedings, Vancouver, Canada: Society of Mining Engineers, p. 1631, ISBN 0-87335-223-8
  3. Renner, Hermann; Schlamp, Günther; Hollmann, Dieter; Lüschow, Hans Martin; Tews, Peter; Rothaut, Josef; Dermann, Klaus; Knödler, Alfons; Hecht, Christian; Schlott, Martin; Drieselmann, Ralf; Peter, Catrin; Schiele, Rainer (2000). "Gold, Gold Alloys, and Gold Compounds". Ullmann's Encyclopedia of Industrial Chemistry. doi:10.1002/14356007.a12_499. ISBN 3527306730.
  4. The New English Dictionary


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