The results of the extraction of iron, copper, and precious metals from solid waste (cakes) of soda leaching of calcined molybdenum intermediate product are presented. According to IR spectroscopy and RFA data, the cake contains Mo, Re, Cu, Fe, etc.; Fe(OH)3·nH2O, MoO2/MoO3, MoS2 phases, as well as molybdate compounds (CuMoO4, ZnMoO4, CaMoO4, PbMoO4, Fe2(MoO4)3) were identified. The cake is finely dispersed (up to 95% <0.074 mm), has a specific gravity of ~1.33 t/m3, and weak magnetic properties due to hydrated iron oxides. A scheme of wet magnetic separation with a gradual increase in magnetic induction with the addition of 0.5-0.8% of magnetite particles (for magnetization of weakly magnetized particles) and ~1 g/t of polyacrylamide was developed and tested. A magnetic concentrate with a Fe content of 26-27% was obtained, in which Cu was reduced to ~0.05% and Mo to ~0.2%; the non-magnetic fraction was enriched with Mo (~5.2%) and Cu (~2.4%) and sent for further hydrometallurgical processing (extraction of copper and rare metals). Material balance and tests have shown the technological feasibility and selectivity of the proposed approach to the integrated disposal of leaching cakes.
| Mualliflar | Vokhidov, Bakhriddin Rakhmidinovich, Rustamov, Islomjon Ilkhomovich, Rakhimov, Makhmudjon Murodjonovich, Azimov, Oybek Akhmadovich, Вохидов, Бахриддин Рахмидинович, Рустамов, Исломжон Илхомович, Рахимов, Махмуджон Муроджонович, Азимов, Ойбек Ахмадович, Voxidov, Baxriddin Raxmidinovich, Rustamov, Islomjon Ilhomovich, Raximov, Maxmudjon Murodjonovich, Azimov, Oybek Axmadovich |
|---|---|
| Jurnal | Саноатда рақамли технологиялар |
| Nashr sanasi | 2025-10-19 |
| Jild | 3 |
| Son | 4 |
| Betlar | 47-52 |
| Til | Rus |
| DOI | 10.70769/3030-3214.srt.3.4.2025.3 |
DOI: 10.70769/3030-3214.srt.3.4.2025.3 · Maqolaning asl sahifasi
calcined molybdenum intermediate, soda leaching, cake, wet magnetic separation, magnetite particles, polyacrylamide, iron concentrate, non-magnetic fraction, copper extraction, rare metals, complex processing, обожжённый молибденовый промпродукт, содовое выщелачивание, кек, мокрая магнитная сепарация, магнетитовые частицы, полиакриламид, железный концентрат, немагнитная фракция, извлечение меди, благородные металлы, комплексная переработка, kuydirilgan molibden oraliq mahsuloti, sodali tanlab eritish, kek, nam magnitli separatsiya, magnetit zarralari, poliakrilamid, temir konsentrati, nomagnit fraksiya, misni ajratib olish, nodir metallar, kompleks qayta ishlash
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