Hatch provides extensive experience in the following areas:

• Process Development and Design
  • Flowsheet development
  • Process modeling
  • Heat and mass balances
  • Laboratory testing programs
  • Design
  • Management and interpretation
• Studies and Engineering Services
  • Feasibility studies
  • Basic and detail engineering
  • Procurement
  • Project and construction management
  • Due diligence
  • Technical assessments
• Comminution
  • Primary/secondary crushing
  • SAG/rod/ball milling
  • Fine grinding
• Refractory Gold Ore Pre-Treatment
  • Pressure oxidation
  • Bio-oxidation
  • Oxidative roasting
• Gold Recovery
  • Gravity
  • Carbon-in-leach
  • Carbon-in-pulp
  • AARL/Zadra carbon elution
  • Merrill-Crowe, zinc precipitation
  • Electrowinning
• Gold Refining
  • Precipitate retorting
  • Primary gold ore
• Cyanide Destruction
  • Caro’s acid
  • INCO/SO₂ air
• Safety Reviews and Commissioning
  • HAZOP reviews
  • Operating manuals
  • Plant commissioning
  • Start-up assistance