Operations Overview

Stage 1	Stage 2	Stage 3	Stage 4	Stage 5	Stage 6	Stage 7
Mining	Ores and Concentrates	Crushing and Milling	Leaching	Copper SX	Copper EW	Cobalt Precipitation

Stage 1

Mining

Shalina_Mining

Etoile is an open pit mine with Cobalt (0.6%) and Copper(3.6%).
Current mining is at the oxide level and will reach the mixed ores and sulphide levels in a couple of years.

Stage 2

Ores and Concentrates

Shalina_OresConcentrates

The oxides from Etoile are fed into a heavy media separation plant for enrichment of copper and cobalt.
This concentrate is the feed for the Usoke Copper SX/EW factory.

Stage 3

Crushing and Milling

Shalina_Crushing

Crushing: Facilitates flow of sticky material through the circuit by washing/screening of fines and delivering them to the leach feed tanks.
Milling: Produces ore slurry of desired particle size by milling of crushed ore , where required, from crushing section.
Pre-Leach Concentration: Enhances acid recovery and concentrates cobalt bleed stream by de-watering milled slurry and thereby reduces operating cost.

Stage 4

Leaching

Shalina_Leaching

Helps to increase the residence time for better leaching efficiencies of Copper and Cobalt.
CCDs:Improves the post leach solid- liquid separation with better washing efficiency to increase recover y of metals.
Clarification Polishes off residual solids from leached liquor for better performance of Copper SX plant.

Stage 5

Copper SX

Shalina_CopperSX

Extracts copper from the high grade leached liquor generated in the split circuit.
Copper concentrate in solution after removal of impurities is then sent for electro-winning (EW)

Stage 6

Copper EW

Shalina_CopperEW

Produces LME-A grade Copper cathode.

Stage 7

Cobalt Precipitation

Shalina_Cobalt

Acid Neutralization: Neutralizes the acid present in the cobalt bleed stream
Cobalt Precipitation with Soda Ash: Produces good quality of Cobalt Carbonate