Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun metallurgy The extraction of gold or silver from their ores using the cyanide process

Etymologies

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Examples

  • In 1863 Debus transformed hydrocyanic acid into methylamine with platinum black; however, this reaction is fugitive and soon ceases because cyanidation of the metal rapidly destroys its capacity to induce the reaction.

    Paul Sabatier - Nobel Lecture 1966

  • A gold ore may contain copper or arsenic, so as to debar cyanidation, where this process is the only hope of sufficiently moderate costs.

    Principles of Mining Valuation, Organization and Administration Herbert Hoover 1919

  • A flotation concentrator is added to allow for separate cyanidation of concentrate and flotation tailings.

    Reuters: Press Release 2011

  • Secon, the expanded cyanidation circuit is anticipated to reach 800 tpd, up from the current 425 tpd, within the first quarter of 2012.

    unknown title 2011

  • The samples are shipped to the Abilab laboratory in Ougadougou, Burkina Faso, for analysis by bottle roll cyanidation on 1kg

    Marketwire - Breaking News Releases 2010

  • The concentrate will be treated via pressure oxidation with subsequent cyanidation and Merrill-Crowe recovery of gold-silver dore.

    StreetInsider.com News Articles 2010

  • We plan to process the refractory ore in our sulfide bio-oxidation plant at Bogoso and to process the non-refractory ore using our more traditional gravity, flotation and/or cyanidation techniques.

    The Earth Times Online Newspaper 2010

  • The concentrate will be treated via pressure oxidation with subsequent cyanidation and Merrill-Crowe recovery of gold-silver dore.

    StreetInsider.com News Articles 2010

  • The sample preparation and analytical procedure involves pulverizing the entire 2kg (or less according to the material available) sample followed by quartering to obtain a representative 1kg (or less according to the material available) sample which undergoes bottle roll cyanidation for 24 hours.

    Marketwire - Breaking News Releases 2010

  • In cases where bottle roll cyanidation yields assays >

    Marketwire - Breaking News Releases 2010

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