Gold is usually found alone or alloyed with mercury or silver, but can also be found in ores such as calaverite, sylvanite, nagyagite, petzite and krennerite. Most gold ore now comes from either open pit or underground mines. The ores sometimes contain as little as 5/100 of an ounce of gold per ton of rock. In ...
2020/05/13· Pyrometallurgy can also be used for gold extraction as well. This can include smelting, in which, the ore is reduced to a molten state as well as drying and roasting, in which other materials in the rock are oxidized to prevent them from hindering the extraction process.
2019/10/15· Argentite ore is Ag2S . It is leached with dilute NaCN solution in presence of air. Ag2S + 2NaCN → Na2S + + 2AgCN ↓ AgCN + NaCN → Na[Ag(CN)2] or 4Ag + 8CN - + 2H2O + O2 → [Ag(CN)2] - + 4OH - From soluble complex, silver is displaced by zinc 2 [Ag(CN)2] - + Zn → [Zn(CN)4]2 - + 2Ag Zinc can displace Ag as Zn is more active than …
Extraction of silver from Argentite The chief are of silver is argentite and silver is extracted by hydrometallurgy process. The silver are is dissolved in cyanide solution to form soluble argento cyanide complex from which metal is obtained by reduction with more electropositive.
2018/02/11· Metallurgical ContentExtraction of SilverFirst LeachingSecond LeachingPrecipitation of the SilverTreatment of the Precipitated SilverQuality of Ores fit for the Solving ProcessSulphide of Calcium The extraction of silver by the solving processes simple. The ore is first roasted with salt in the usual way, whereby the …
How is silver extracted from its ore Answers:Silver is mined by extracting the ore from the ground and processing it The metal is commonly extracted from the ore by smelting or chemical leaching Whatever your requirements, you 'll find the perfect service-oriented solution to match your specific needs with our help.
2019/10/15· Extraction of Silver from the Argentite ore: Silver is extracted from the argentite ore by the Mac Arthur and Forrest's cyanide process. The various steps involved in this process are 1. Concentration : The crushed ore is Concentrated by froth floatation process. 2. Treatment of the ore With NaCN : The . concentrated ore is treated with …