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- W2890464090 abstract "Total pressure oxidation (TPOX) is widely outreached leaching practice for base metals from sulfide minerals, wherein high temperature (T ~ 200 °C) and oxygen pressure (pO2 ~ 25 bar) are required. These aggressive conditions intensify the oxygen mass transfer, and therefore facilitate metal dissolution. However, challenging-cum-negative aspects of such practice are energy and material intensive requirements and high oxygen demand. Thus, the present study explores the novel emulsified medium for enhancement of oxygen mass transfer, which assists faster metal dissolution at significantly lower temperature and pressure condition. It is possible to achieve quantitative dissolution (>95%) of Cu, Ni and Co from mixed sulfide minerals at T ~ 95 °C and pO2 ~ 2 bar using an emulsion of 2.5% (v/v) n-Hexadecane in dilute sulfuric acid. In addition, n-Hexadecane was found to be inert, stable and immiscible in a pressurized leaching system, thus can be easily separated and recycled in subsequent leaching stages. Thus, this study offers an energy efficient route for low temperature-pressure leaching of sulfides." @default.
- W2890464090 created "2018-09-27" @default.
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- W2890464090 date "2018-01-01" @default.
- W2890464090 modified "2023-09-27" @default.
- W2890464090 title "Emulsion Mediated Low Temperature Pressure Leaching of Base Metals from Mixed Sulfide Minerals Through Enhanced Oxygen Mass Transfer" @default.
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- W2890464090 doi "https://doi.org/10.1007/978-3-319-95022-8_137" @default.
- W2890464090 hasPublicationYear "2018" @default.
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