copper ore sulfidic

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  Recovery of Copper from Ammoniacal Leachates by Ion Flotation

  2021427 · Sulfidic copper–lead–zinc tailings can pose a significant environmental threat, ranging from generation of acid mine drainage (AMD) to dam failures. On the other hand, they can also be considered as low-grade ore resources for zinc and copper provided that novel economically feasible metal extraction and metal recovery techniques are …

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  In situ leaching of copper: Challenges and future prospects

  2015101 · Biological oxidation on the surface of the ore particles has also been used in ISL of fragmented copper ore when atmospheric contact was sufficient (Bernal and Venero, 1985, Fletcher, 1972, Rossi et al., 1986, Sand et al., 1993), and in situ bio-oxidation of sulfide minerals is also currently being developed for ISL of gold ores (Kaksonen et al ...

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  Bioleaching of cobalt from Cu/Co-rich sulfidic mine tailings …

  2020111 · Studies on how microbial cells interact with low grade ores, especially mining tailings, are still scarce. In this study, we tested a mesophilic and acidophilic microbial consortium to bioleach copper, cobalt and other valuable metals from the bulk Rammelsberg mine tailings and a sulfidic tailings flotation concentrate.

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  Optimization of Microbial Leaching of Base Metals from a …

  2017721 · X-ray diffraction analysis revealed that pentlandite and chalcopyrite were the prominent mineral phases in a South African sulfidic nickel ore concentrate that hosted nickel and copper. Cobalt was found to be closely associated with the nickel-bearing pentlandite phase of the ore sample.

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  Axel SCHIPPERS | Head of Department | Prof. Dr.

  Comparison of bioleaching of a sulfidic copper ore (chalcopyrite) in column percolators and in stirred-tank bioreactors including microbial community analysis. Article. Dec 2023;

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  Bioleaching of copper from chalcopyrite ore at higher NaCl ...

  202211 · The formation of hydrolyzed ferric iron (Fe (III)) as jarosite could limit the bioleaching of copper and significantly lower the dissolution rate of low-grade chalcopyrite ore. Thus, to improve the rate through overcoming the hindered dissolution of chalcopyrite, this study investigated the influence of chloride addition into leaching lixiviant.

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  Ionic liquids as additives for acid leaching of copper from sulfidic ...

  201651 · Section snippets Mineral samples. The mineral was received from Codelco (the Chilean state mining company) at Division Andina (located more than 3000 m above sea level in the central zone of Chile).The samples were prepared from 30 kg of copper ore that had been crushed to a particle size of 1 in.The ore was dried in an oven at 105 °C …

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  (PDF) Optimization of Microbial Leaching of Base Metals …

  201873 · X-ray diffraction analysis revealed that pentlandite and chalcopyrite were the prominent mineral phases in a South-African sulfidic nickel ore concentrate that hosted nickel and copper.

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  (PDF) Bioleaching to reprocess sulfidic polymetallic primary mining ...

  202091 · In the framework of European project NEMO ('Near-zero-waste recycling of low-grade sulfidic mining waste for criticalmetal, mineral and construction raw-material production in a circular economy ...

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  Application of Sulfide Copper Ores Oxidizing Roasting

  2019122 · In Ural enterprises copper-zinc concentrates are subjected to metallurgical processing (including autogenic) separated during ore enrichment. Fine reciprocal intergrowth of sulfide minerals and isomorphism of iron and nonferrous metals [] leads to a situation that a significant amount of copper, and also up to 80% of cobalt and precious …

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