Desulfurization of the Old Tailings at the Au-Ag-Cu Tiouit Mine (Anti-Atlas Morocco)
作者： Abdelkrim Nadeif , Yassine Taha , Hassan Bouzahzah , Rachid Hakkou , Mostafa Benzaazoua
DOI: 10.3390/MIN9070401
关键词:
摘要: Tailings from the abandoned Tiouit mine site in Morocco are mainly composed of sulfides, hematite, and quartz. They contain 0.06–1.50 wt % sulfur, mostly form pyrite, pyrrhotite, chalcopyrite. The tailings also gold (3.36–5.00 ppm), silver (24–37 copper (0.06–0.08 %). Flotation tests were conducted to reprocess for Au, Ag, Cu recovery, at same time prevent acid drainage (AMD) generation through oxidation sulfide minerals, including sphalerite, arsenopyrite, chalcopyrite, galena. flotation results confirmed that environmental desulfurization is effective reducing overall content tailings. recovery sulfides was between 69% 75%, while Au weight-yield 2.8% 4.7%. test showed best sulfur rate carried out with 100 g/t CuSO4 (sulfide activator) 50 amyl xanthate (collector). goal this study assess remaining acid-generating potential (AP) acid-neutralizing (NP) desulfurized tailing. geochemical behavior initial sample compared using kinetic weathering cell tests. leachates higher pH values than those tailings, which clearly acid-generating. residual acidity produced by most likely caused hydrolysis Fe-oxyhydroxides.
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sci-hub.se 参考文章(36)
Mohammed Chaker, Geochimie et metallogenie de la mine d or de tiouit anti-atlas oriental sud du Maroc Université du Québec à Chicoutimi. ,(1997) , 10.1522/1531540
Hassan Bouzahzah, Mostafa Benzaazoua, Bruno Bussière, Benoit Plante, ASTM Normalized Humidity Cell Kinetic Test: Protocol Improvements for Optimal Sulfide Tailings Reactivity Mine Water and The Environment. ,vol. 34, pp. 242- 257 ,(2015) , 10.1007/S10230-014-0307-3
Carmen‐Mihaela Neculita, Gérald J Zagury, Bruno Bussière, Passive treatment of acid mine drainage in bioreactors using sulfate-reducing bacteria: critical review and research needs. Journal of Environmental Quality. ,vol. 36, pp. 1- 16 ,(2007) , 10.2134/JEQ2006.0066
Hassan Bouzahzah, Mostafa Benzaazoua, Bruno Bussiere, Benoit Plante, Prediction of Acid Mine Drainage: Importance of Mineralogy and the Test Protocols for Static and Kinetic Tests Mine Water and The Environment. ,vol. 33, pp. 54- 65 ,(2014) , 10.1007/S10230-013-0249-1
Jeonghyun Park, Yosep Han, Eunseong Lee, Uikyu Choi, Kyungkeun Yoo, Youngsoo Song, Hyunjung Kim, Bioleaching of highly concentrated arsenic mine tailings by Acidithiobacillus ferrooxidans Separation and Purification Technology. ,vol. 133, pp. 291- 296 ,(2014) , 10.1016/J.SEPPUR.2014.06.054
Isabelle Demers, Bruno Bussière, Mostafa Benzaazoua, Mamert Mbonimpa, Annie Blier, Column test investigation on the performance of monolayer covers made of desulphurized tailings to prevent acid mine drainage Minerals Engineering. ,vol. 21, pp. 317- 329 ,(2008) , 10.1016/J.MINENG.2007.11.006
M. Benzaazoua, P. Marion, F. Robaut, A. Pinto, Gold-bearing arsenopyrite and pyrite in refractory ores: analytical refinements and new understanding of gold mineralogy Mineralogical Magazine. ,vol. 71, pp. 123- 142 ,(2007) , 10.1180/MINMAG.2007.071.2.123
M. Benzaazoua, M. Kongolo, Physico-chemical properties of tailing slurries during environmental desulphurization by froth flotation International Journal of Mineral Processing. ,vol. 69, pp. 221- 234 ,(2003) , 10.1016/S0301-7516(02)00129-1
Tao Chen, Chang Lei, Bo Yan, Xianming Xiao, Metal recovery from the copper sulfide tailing with leaching and fractional precipitation technology Hydrometallurgy. ,vol. 147, pp. 178- 182 ,(2014) , 10.1016/J.HYDROMET.2014.05.018
Mansour Edraki, Thomas Baumgartl, Emmanuel Manlapig, Dee Bradshaw, Daniel M. Franks, Chris J. Moran, Designing mine tailings for better environmental, social and economic outcomes: a review of alternative approaches Journal of Cleaner Production. ,vol. 84, pp. 411- 420 ,(2014) , 10.1016/J.JCLEPRO.2014.04.079