Anvil Mining Limited (TSX, ASX: AVM), a copper producer whose shares are traded on the Toronto Stock Exchange, has produced copper cathode at its flagship Kinsevere Stage II Solvent Extraction and Electro-Winning
The injection and recovery well system will be accompanied by a state-of-the-art solvent extraction and electro-winning
facility that will produce copper cathode from solution from the wells.
The gold recovery had been raised by two percentage points to 87.2% and silver recovery had lifted 40% after it licensed its Elution and Electro-Winning
circuit at its New Luika pit.
Highlights for Stage 2 solvent extraction electro-winning
This includes initial mining near the surface for copper oxide and beneficiation by means of leaching and electro-winning
. This will enable Craton to produce copper metal, rather than a concentrate which needs to be exported.
The Project is designed to process 12Mt/a of oxide ore by crushing, vat leaching, solvent extraction and electro-winning
to produce up to 52,000 t/a of cathode copper.
When Avmin bought the Chambishi plant it comprised a roaster, leaching vessels, copper electro-winning
and an acid plant.
The flowsheet includes primary crushing, grinding through a single-stage SAG mill, gravity concentration, classification, leaching and adsorption, tailings thickening, electro-winning
, and smelting.
As Tiger concluded the building and commissioning of its Phase II solvent extraction electro-winning
(SXEW) plant at Kipoi - within record time, it launched cathode production on 25 May 2014.
In addition to the HMS operation, Tiger's Stage 2 solvent-extraction electro-winning
(SXEW) plant at Kipoi is on schedule to commence production of copper cathode in Q2 2014.
A final electro-winning
recovery circuit is in place, along with associated secure gold room facilities.
Proceeds from the publishing will be resolved via a provision of mining services for the stage 2 solvent extraction electro-winning
operation at Kipoi.