Lanxess Lewatit® AF 5 and activated carbon catalysis of enargite leaching in chloride media; a parameters study
作者： Fazel G. Jahromi , Denver H. Cowan , Ahmad Ghahreman
DOI: 10.1016/J.HYDROMET.2017.10.012
关键词:
摘要: Abstract Enargite leaching is investigated in chloride media with and without Activated Carbon (AC), Lanxess Lewatit® AF 5 (abbreviated as 5), a novel carbon based catalyst. Moreover, single synergistic effects of different parameters on copper dissolution rate are studied. Both catalysts were found to be very effective facilitating the enargite process improved recovery from 65% 92% (AC) 96% (AF 5) after 96 h. The best condition was be: ferric cupric concentrations greater than 5 g/L, concentrate catalyst ratio 1:2, at 90 °C working temperature. Most dissolved oxidized by AC or solution. An elemental sulfur coating not observed surface partially leached mineral particles catalysts, which known cover minerals during acidic solutions catalysts.
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