experimental

Entry: cyanide tank leaching

URI: https://data.geoscience.earth/ncl/ProcessingActivityType/cyanidetankLeaching

Cyanide leaching is most common in processing gold (and silver) ores. Cyanide dissolves gold from its host rock providing the ore exists as an oxide and is not bound closely. Low-grade ore contains gold in the form of microscopic particles and is processed via heap leaching. If gold is present in a larger and more concentrated state, the ore is ground finely and leached in a tank. A gold/cyanide complex forms as the gold dissolves from the rock or pulp (finely ground ore), according to the equation: 4Au + 8CN– + 2H2O +O2 –> 4Au(CN)2 + 4OH–

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is a Concept
submitted byAbdel FELIACHI
accepted on 8 Jan 2019 15:58:49.701

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date accepted 8 Jan 2019 15:58:49.701
date submitted 8 Jan 2019 15:37:37.184
definition
entity cyanide tank leaching
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item class Concept
label cyanide tank leaching
notation cyanidetankLeaching
register processing activity type
status status experimental
submitter
account name a.feliachi@ext.brgm.fr
name Abdel FELIACHI

type register item
version info 2
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Definition

broader tank leaching
definition Cyanide leaching is most common in processing gold (and silver) ores. Cyanide dissolves gold from its host rock providing the ore exists as an oxide and is not bound closely. Low-grade ore contains gold in the form of microscopic particles and is processed via heap leaching. If gold is present in a larger and more concentrated state, the ore is ground finely and leached in a tank. A gold/cyanide complex forms as the gold dissolves from the rock or pulp (finely ground ore), according to the equation: 4Au + 8CN– + 2H2O +O2 –> 4Au(CN)2 + 4OH–
in concept scheme Processing Activity Type
label cyanide tank leaching
notation 10.2.2..
pref label cyanide tank leaching
source cyanide tank leaching
type Concept

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