Skip to main content

Electrowinning gold processing

AppNote XRF1537: at-line analysis of gold in stripping solutions

Background

The at-line analysis of gold in impregnated stripping solutions during the electrowinning process is demonstrated. Gold ore processors commonly utilize the cyanide leaching technique to recover trace gold content. After the gold is leached out of the ore, it is typically absorbed onto activated carbon in processes such as Carbon-in-Pulp (CIP), Carbon-in-Leach (CIL), or Carbon Column (CC). Once absorbed, the gold is stripped from the Carbon and the impregnated stripping solution fed into the electrowinning process where the gold is recovered by electrolysis. By measuring the gold in the stripping solution at-line, operators can quickly and easily determine when the solution will be barren of gold, significantly improving the plant’s efficiency. The Rigaku NEX DE offers a simple and low cost at-line analytical technique for measuring such solutions. Non-technical operators obtain results in as little as 100-300 seconds without the need for special sample preparation, sample conditioning or technical knowledge.

EDXRF products from Rigaku

High-performance, Cartesian-geometry EDXRF elemental analyzer measures Na to U in solids, liquids, powders and thin films

New variable collimator small spot 60 kV EDXRF system featuring QuantEZ software.

New 60 kV EDXRF system featuring QuantEZ software and optional standardless analysis

Low-cost EDXRF elemental analyzer measures Na to U in solids, liquids, powders and thin-films

Performance EDXRF elemental analyzer measures Na to U in solids, liquids, powders and thin-films

EDXRF spectrometer with powerful Windows® software and optional FP.

Scanning multi-element process coatings analyzers for web or coil applications

EDXRF multi-element process analyzer; analyze aluminum (Al) through uranium (U)