| Issue |
E3S Web Conf.
Volume 192, 2020
VIII International Scientific Conference “Problems of Complex Development of Georesources” (PCDG 2020)
|
|
|---|---|---|
| Article Number | 02027 | |
| Number of page(s) | 5 | |
| Section | Problems of Complex Processing of Mineral Raw Materials and New Technologies of Mineral Processing | |
| DOI | https://doi.org/10.1051/e3sconf/202019202027 | |
| Published online | 30 September 2020 | |
Research and technological testing of ores with dispersed gold of the Yellow Jacket Deposit
1
Advanced Recovery, Cal. USA
2
ZABGU 672039 Chita Aleksandro-Zavodskaya, 30, Russia
The article discusses the mineral and geochemical features of the yellow Jacket ore Deposit located in Clark County, Nevada. Тhe Deposit differs significantly in many mineral and geochemical features from the deposits of dispersed gold ores belonging to the so-called Karlin formation type in compacted and locally weakly metamorphosed strata of carbonate rocks, mudstones and carbonated shales (carbonated turbidites). Positive results of analyses, including those with a cupellation (gravimetric) termination, were obtained in laboratories using non-standard approaches to sample preparation. Based on the working hypothesis of finding chemically bound dispersed gold in hematite-goethite films on the surface of quartz-chalcedony particles and internal microcracks, it was proposed to use active metastable chlorine-oxygen compounds to break the chemical bonds between iron atoms and clustered dispersed gold atoms and transfer it to a solution. In the liquid phase of the ore pulp with reagents added to it , after its activation treatment, the gold content, depending on its duration and intensity, varied in the range from 1.2 to 30 mg/l( at W:T=1:1).
Key words: Yellow Jacket Deposit / mineral and geochemical features of ores / ore testing / dispersed / chemically bound gold / assay and atomic absorption analysis / chloride-hypochlorite leaching / preparation of ores for leaching / active leaching solutions / peroxide-carbonate solution / chloridecarbonat solution
© The Authors, published by EDP Sciences, 2020
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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