3/27/2023 0 Comments Ycal bontanExamples of minerals: are tantalite (Kabangu and Crouse 2012), laterite (Li et al. A literature review showed that ammonium fluorides should be considered a solution to the problem due to their high reactivity with respect to silicon dioxide. The resulting solution can be directed to evaporation in order to regenerate and reuse ammonium hydrodifluoride. The productive solution was directed to the deposition of silicon with the subsequent production of silicon dioxide. The formed concentrate can later be used to extract zinc, lead, silver, etc. After removing silicon, the solid residue was subjected to pyrohydrolysis to obtain a product that can be subjected to magnetic separation to obtain a magnetic iron concentrate and a non-ferrous metal concentrate. Iron, aluminum, and a number of other components react with ammonium hydrofluoride, but do not leach into the solution due to their low solubility in the resulting system. According to the results of the work, it was found that silicon passes into solution in the form of ammonium hexafluorosilicate. The paper considers a method for removing silicon from the polymetallic slags. Such problems include the presence of significant amounts of silicon dioxide in the form of a silicate matrix, the removal of which will allow the extraction of valuable components with the elimination of industrial waste areas. However, it is worth noticing the presence of problems that previously did not allow for more complete extraction of the target components. The accumulated waste contains valuable metals in concentrations that allow considering them as valuable raw materials. Throughout the period of operation of non-ferrous metal deposits, a significant amount of waste has been accumulated. 2021), make it possible to achieve a high degree of element conversion. These melts are characterized by high chemical activity and, in combination with the simultaneous grinding of the reaction mixture (Dmitriev et al. 2019), zircon concentrates, etc.) the possibility of using a melt of ammonium fluorides as a reagent for processing the most chemically resistant oxygen-containing compounds of elements was established. 2016), thorium dioxide (Mukherjee and Awasthi 2019), lanthanum, neodium and gadolinium (Osipov et al. 2018), etc.), and pure oxides (plutonium dioxide (Claux et al. 2021), ilmenite (Andreev and Diachenko 2009), titanomagnetite Sachkov et al. 2012 Laptash and Maslennikova 2016 Dmitriev et al. 2010), monazite (Kemp and Cilliers 2014), spodumene (Resentera et al. On examples of such minerals (tantalite (Kabangu and Crouse 2012), laterite (Li et al. Literature review showed that ammonium fluorides can be considered as a solution to the problem.
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