Hydrometallurgical Processing of Gold-Containing Ore and its Enrichment Products

Федотов, П. К.; Сенченко, А. Е.; Федотов, К. В.; Бурдонов, А. Е.

doi:10.1007/s11015-021-01150-9

Cited by 5 publications

(1 citation statement)

References 20 publications

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“…The ore features a few impurities and a moderate amount of sulfide sulfur, which favors efficient application of heap-leach cyanidation of gold [17][18].…”

Section: Researchmentioning

confidence: 99%

Influence of ore processing behavior on heap-leach cyanidation and agitation leaching efficiency

Fedotov¹,

Сенченко²,

Fedotov³

2022

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The study addresses efficiency of heap-leach cyanidation as function of processing properties of ore. The grain size composition, chemistry and mineralogy represent the main ore properties. The test ore samples contain up to 76% of aluminum and silicon oxides. The ore features a few impurities and a moderate amount of sulfide sulfur (0.6%). Assaying after preliminary gravity separation of gold shows that average Au content is 1.74 g/t (site 1) and 1.43 g/t (site 2). This research aims to analyze the processing properties of ore and assess expediency of heap-leach cyanidation of this ore. The representative samples for the heap leach tests are the primary sulfide ore. The lab-scale tests of agitation cyanidation of ore samples from different sites were carried out using bottle agitator. The scope of the analysis also embraced the influence of the ore size and cyanide concentration on the leaching efficiency. Furthermore, adsorption of gold from cyanidation solutions was also tested. The cyanidation products were subjected to atomic adsorption spectroscopy (solution) and assaying (cake).

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“…The ore features a few impurities and a moderate amount of sulfide sulfur, which favors efficient application of heap-leach cyanidation of gold [17][18].…”

Section: Researchmentioning

confidence: 99%

Influence of ore processing behavior on heap-leach cyanidation and agitation leaching efficiency

Fedotov¹,

Сенченко²,

Fedotov³

2022

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Highly Selective Recovery of Gold by In Situ Magnetic Field‐Assisted Fe/Co‐MOF@PDA/NdFeB Double Network Gel

Ren,

Li,

Zhu

et al. 2024

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There are enormous economic benefits to conveniently increasing the selective recovery capacity of gold. Fe/Co‐MOF@PDA/NdFeB double‐network organogel (Fe/Co‐MOF@PDA NH) is synthesized by aggregation assembly strategy. The package of PDA provides a large number of nitrogen‐containing functional groups that can serve as adsorption sites for gold ions, resulting in a 21.8% increase in the ability of the material to recover gold. Fe/Co‐MOF@PDA NH possesses high gold recovery capacity (1478.87 mg g−1) and excellent gold selectivity (Kd = 5.71 mL g−1). With the assistance of an in situ magnetic field, the gold recovery capacity of Fe/Co‐MOF@PDA NH is increased from 1217.93 to 1478.87 mg g−1, and the recovery rate increased by 24.7%. The above excellent performance is attributed to the efficient reduction of gold by FDC/FC+, Co2+/Co3+ double reducing couple, and the optimization of the reduction reaction by the magnetic field. After the samples are calcined, high‐purity gold (95.6%, 22K gold) is recovered by magnetic separation. This study proposes a forward‐looking in situ energy field‐assisted strategy to enhance precious metal recovery, which has a guiding role in the development of low‐carbon industries.

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Hydrometallurgical Processing of Gold Ore

Федотов

Сенченко²,

Федотов

et al. 2022

J. Inst. Eng. India Ser. D

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Hydrometallurgical Processing of Gold-Containing Ore and its Enrichment Products

Cited by 5 publications

References 20 publications

Influence of ore processing behavior on heap-leach cyanidation and agitation leaching efficiency

Influence of ore processing behavior on heap-leach cyanidation and agitation leaching efficiency

Highly Selective Recovery of Gold by In Situ Magnetic Field‐Assisted Fe/Co‐MOF@PDA/NdFeB Double Network Gel

Hydrometallurgical Processing of Gold Ore

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