TECHNOLOGIES FOR EXTRACTING NANOGOLD FROM NATURAL AND TECHNOGENIC ORES

https://doi.org/10.48498/minmag.2022.203.3.006

Innovative technologies for separating nanogold from natural and technogenic ores are disclosed. The main forms of presence of gold nanoparticles in mineral raw materials are described: in the crystal structure of carrier minerals, crystal structure defects, microcracks, and films of newly formed minerals. It is shown that the main minerals – concentrates of nanosized gold are chalcedonic quartz, albite, valensionite, arsenic pyrite, arsenopyrite, chalcopyrite, marcasite, iron oxides, realgar, clay minerals, etc. When developing a technology for the enrichment of gold-bearing ores, in which the presence of gold nanoparticles is established, it is necessary to take into account their physical and chemical properties that affect the essence of the technology used and its parameters, as well as characteristics.

A.E. Vorobyov, V.V. Peregudov