pretreatment of refractory gold ore with microwaves

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  Methods of Ore Pretreatment for Comminution …

  200091 · Request PDF | An application of microwave pre-oxidation in improving gold recovery of a refractory gold ore | Microwave radiation was employed as a pretreating technology to oxidise a refractory ...

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  Mineralogy and Pretreatment of a Refractory Gold Deposit in …

  201971 · The gravity–flotation combined beneficiation pretreatment process provided a feasible method for the refractory gold ore and ensured the effective recovery of gold.

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  Sequential pretreatment of double refractory gold ore …

  201971 · Semantic Scholar extracted view of "Sequential pretreatment of double refractory gold ore (DRGO) with a thermophilic iron oxidizing archeaon and fungal crude enzymes" by Kojo T. Konadu et al.

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  A clean and efficient innovative technology for refractory sulfide gold ...

  2023920 · Abstract Green non-toxic extracting gold from refractory sulfide gold ore using thiosulfate is an essential guarantee for the sustainable development of the gold industry. However, there are many bottlenecks, including environmental pollution from traditional pretreatment of sulfide gold ore and high consumption of chemical thiosulfate. …

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  Pretreatment of refractory gold ore by curing with …

  With the evolving landscape of gold mineral resource development and utilization, the easily treatable gold resources are continuously decreasing, while refractory gold minerals are becoming the most important resources in the field of gold extraction. In these original ores, most of the gold is encapsulated in the lattice of pyrite and arsenopyrite, resulting in …

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  Biooxidation of Gold-, Silver, and Antimony-Bearing Highly Refractory ...

  2015624 · Effectiveness of different pure and mixed cultures of three moderately thermophilic, extremely acidophilic bacterial strains (Acidimicrobium ferrooxidans ICP, Sulfobacillus sibiricus N1, Acidithiobacillus caldus KU) were investigated for biooxidation of highly refractory polymetallic gold ore concentrates. Despite of its complex mineralogy …

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  Biooxidation of Gold-, Silver, and Antimony-Bearing Highly Refractory ...

  2015624 · Finally, this study provides one of the very few available comparisons of the effectiveness of different pretreatment techniques for refractory gold ore concentrates: Compared with other abiotic pretreatment approaches (roasting, pressure oxidation, and alkali dissolution), biooxidation was shown to be one of the most effective options in terms …

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