2022-07-29
Heap leaching technology and process
The percolation heap leaching method was used to treat copper oxide ore in Spain in 1752. It was used to leach low-grade and cut-off uranium ores in the late 1950s. The US Bureau of Mines took the lead in leaching low-grade gold with this method in 1967. ore. Since the 1970s, the world's gold heap leaching technology has developed rapidly, and the world's major gold-producing countries have adopted the heap leaching method to extract gold, and the current production scale has been large.
In the early 1960s, my country used heap leaching for leaching border-grade uranium ore, in the late 1960s for leaching copper oxide ore, and in the early 1980s for leaching low-grade gold ore. In the past ten years, the percolation heap leaching process of low-grade gold ore has developed rapidly, and it is mainly used for low-grade gold-bearing oxide ores and iron-cap gold-bearing ores.
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