Heaps for heap leaching
Patent Information
- Authority / Receiving Office
- AU · AU
- Patent Type
- Applications
- Current Assignee / Owner
- ANGLO CORP SERVICES SOUTH AFRICA (PTY) LTD
- Filing Date
- 2026-06-26
- Publication Date
- 2026-07-16
AI Technical Summary
Heap leaching is limited to low-grade ores due to low recovery rates, constraints on crush size, slow oxidation reactions, acid consumption, inability to use volatile leachants, and inefficiencies in retaining heat and oxygen, restricting its application to a narrow range of ores.
A sealed heap reactor system where crushed ore is stacked on an impermeable pad and enclosed with a coating, allowing controlled irrigation and oxygen addition, maintaining elevated temperatures and pressures to enhance leaching efficiency.
The system enables higher recovery rates and broader applicability to various ore types, including sulphides and concentrates, by retaining heat and volatile reagents, optimizing leaching conditions, and reducing reagent consumption.
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