Minco Plc - Proactive Investors
Minco Plc - Proactive Investors
Minco Plc - Proactive Investors
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<strong>Minco</strong> <strong>Plc</strong><br />
Conceptual Hydrometallurgical Process<br />
Crushing and Grinding<br />
Grind to a P 80 of 58 to 62 micron.<br />
Grouping of Unit Operations<br />
Comminution<br />
Leaching<br />
Run-of-Mine Ore<br />
Crushing<br />
Sulfuric Acid Leach<br />
Direct leaching of iron carbonate /<br />
oxide and manganese carbonate to<br />
form manganese sulfate/ iron sulfate.<br />
Solution Purification<br />
Product Recovery<br />
Process Water<br />
Manganese Precipitate Recycle<br />
Spent Electrolyte /<br />
Acid Recycle<br />
Grinding<br />
Sulphuric Acid<br />
Leach<br />
H2SO4 Make-up<br />
Goethite II<br />
Residue<br />
Recycle<br />
Leach Residue<br />
To Tailings Management<br />
Goethite Precipitation/ Washing<br />
Multi-stage precipitation of iron /<br />
formation of stable iron complex.<br />
Sulfide Precipitation<br />
Precipitation of heavy metals from<br />
solution.<br />
Misc. Residue Wash Filtrates<br />
Lime<br />
Process Wastewater<br />
To Wastewater Treatment<br />
Manganese<br />
Precipitation<br />
Spent Electrolyte<br />
Bleed Stream<br />
Lime / Air<br />
Lime / Air<br />
Tertiary Purification<br />
Reagents<br />
Ammonium Sulphate<br />
Primary<br />
Goethite<br />
Precipitation<br />
Secondary<br />
Goethite<br />
Precipitation<br />
Tertiary Solution<br />
Purification<br />
E/W Efficiency Promoting Reagent<br />
Acidic Process Water<br />
Re-Pulp Wash Filtrate<br />
Residue<br />
Re-Pulp Wash<br />
Goethite I Residue<br />
To Tailings Management<br />
Heavy Metal Residue<br />
To Tailings Management<br />
Electrowinning/ Recyle Acid<br />
Electroplating of manganese and<br />
generation of sulfuric acid.<br />
Electrowinning<br />
Electrolytic Manganese Metal<br />
24<br />
To End User<br />
24
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