Patent · US Active

Precious metal recovery using thiocyanate lixiviant

US7947108B2 · kind B2 · utility

4Cited by
33References
14Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 1, 2009
Grant dateMay 24, 2011
Priority date—
Expiry dateJun 1, 2029

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY02P10/20
  • WIPO fieldMaterials, metallurgy
  • WIPO sectorChemistry

Abstract

Mineral materials comprising copper and precious metal are subjected to an acidic leach of the copper followed by an acidic thiocyanate leach of the precious metal.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.