Abstract
Currently technogenic gold-bearing raw materials (tailings and dumps of existing or closed mines) are considered by many experts as a promising raw material for the extraction of residual gold. Technogenic raw materials, as a rule, are crushed, have fairly clear boundaries and are located near energy sources, roads and settlements, which minimize capital costs for its processing. A negative factor that hinders the recycling of technogenic raw materials is the presence of substances harmful to human health in this raw material: floating and leaching reagents, mercury, etc. If the content of clay and sludge fractions in the raw material is 20 –30%, there is a structural bonding of particles and sorption of finely dispersed gold on clays, which makes it difficult to extract. The extraction of finely dispersed gold from hard-to-wash clay rocks and technogenic raw materials is an important task.
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Bordunov, S., Fedorchuk, Y., Galtseva, O., Narimanova, G. (2023). Technology of Gold Extraction from Clay Ore and Technogenic Raw Materials. In: Lysenko, E., Rogachev, A., Galtseva, O. (eds) Emerging Trends in Materials Research and Manufacturing Processes. Engineering Materials. Springer, Cham. https://doi.org/10.1007/978-3-031-38964-1_4
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