Why It Matters
Acid and reagent management for heap leach, tank leach, and bio-leaching circuits
Solution Approach
Acid and reagent management for heap leach, tank leach, and bio-leaching circuits RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (5)
Sulfuric Acid 93%
CAS 7664-93-9
Acids & Salts
pH Adjustment
1830 (SULFURIC ACID) · Class Primary lixiviant/pH control for copper-oxide and uranium heap/tank leach circuits
Melting Point: 10 °C Boiling Point: 290 °C at 760 mmHg Density: 1.841
Full Details
Calcium oxide (quicklime)
CAS 1305-78-8
Specialty Additives
pH adjustment
1910 (CALCIUM OXIDE) · Class Raises and buffers pH (protective alkalinity) for cyanide gold-leach circuits
Melting Point: 2572 °C Boiling Point: 2850 °C at 760 mmHg Density: 3.3 at 20 °C
Full Details
Sodium cyanide
CAS 143-33-9
Acids & Salts
Chelation / Sequestration
1689 (SODIUM CYANIDE) · Class Lixiviant that complexes gold/silver into soluble cyanide complexes for extraction
Melting Point: 564 °C Boiling Point: 1496 °C at 760 mmHg Density: 1.6 at 25 °C
Full Details
Hydrogen Peroxide (Leaching / Process Oxidant)
CAS 7722-84-1
Polymers & Resins
Biocidal Action
2015 (HYDROGEN PEROXIDE, AQUEOUS SOLUTION, STABILIZED, WITH MORE THAN 60% HYDROGEN PEROXIDE) · Class Oxidant used to raise ORP and accelerate leach kinetics / cyanide-leach oxygenation
Melting Point: 0 °C Boiling Point: 150 °C at 760 mmHg Density: 1.11 at 20 °C
Full Details
Di(2-ethylhexyl) phosphoric acid (D2EHPA)
CAS 298-07-7
Acids & Salts
pH Adjustment
1902 (DI-(2-ETHYLHEXYL)PHOSPHORIC ACID) · Class Solvent-extraction reagent that selectively transfers leached metals (e.g. Zn, Co, rare earths) from pregnant liquor into organic phase
Melting Point: < -60 °C Boiling Point: 155 °C at 0.015 mm Hg Density: 0.977 at 20 °C
Full Details