Electrochemically enhanced leaching
Sulphide minerals (combinations of metals and sulphur) are common components
of many ore deposits in all parts of the world. Although not always, metals,
such as copper, nickel, lead and zinc are commonly mined as mineral sulphides
which must be further treated to release the pure metals. Ore deposits of
other metals such as gold and silver are also often associated with mineral
sulphides.
Mining wastes (in the form of tailings) may contain from 10% to 50% iron sulphide minerals. In many cases, these sulphide minerals will contain metals of economic interest, i.e. nickel. However, the extraction of the metals of interest is not economical using traditional extraction techniques. A similar situation exists for low-grade sulphide mineral deposits.
How it works?
Sulphide minerals are classified as semi-conductors and as such are amenable
to electrochemical manipulation. The sulphide minerals will behave as metals
when placed in an electric field and form corrosion cells. This corrosion
effect accelerates the decomposition of the mineral and the release of the
metal into solution.
Maximize ore deposit value with ExtrEL.
Related Links:
- Press Release: Canadian Golden Dragon funding
- Metals Recovery
- Technical Reports
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