Methods, materials and techniques for precious metal recovery
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United States of America
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Feb 18, 2020
Grant Date -
Dec 28, 2017
app pub date -
Jun 23, 2017
filing date -
Jun 23, 2017
priority date (Note) -
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Abstract
Materials and methods for precious metal recovery are disclosed. Usable leaching solutions are preferably aqueous based and include appropriate materials in sufficient quantities to solubilize and stabilize precious metal. Such materials typically include oxidant material. Some or all of the oxidant material can be, in some instances, generated in-situ. The leaching solution is typically contacted with a substrate having a target precious metal, thereby solubilizing precious metal to form a stable, pregnant solution. The precious metal can then be recovered from the pregnant solution. In some instances, components of the leaching solution can be regenerated and reused in subsequent leaching.
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