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Pressure leaching technique of smelter dust with high-copper and high-arsenic XU Zhi-feng(徐志峰), LI Qiang(李 强), NIE Hua-ping(聂华平) School of Materials and Chemical Engineering, Jiangxi... _____________________________________________________________________________________________________ Abstract: The application of pressure leaching technology in the treatment of high-copper and high-arsenic dust was studied. The pressure leaching technique was determined as follows......
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; Abstract: The preparation of copper arsenite with arsenic trioxide was presented and its application in the purification of copper electrolyte was proposed... are that the molar ratio of alkali to arsenic is 2:1, NaOH concentration is 1 mol/L, the molar ratio of copper to arsenic is 2:1, pH value is 6.0 and reaction temperature is 20 ℃. The yield of copper......
Zhifeng, NIE Huaping, LI Qiang, et al. Pressure leaching technique of smelter dust with high-copper and high-arsenic[J]. The Chinese Journal of Nonferrous Metals, 2008, 18(special 1): s59-s63. [7] 富瑶... of arsenic during the roasting of copper concentrate[J]. Metallurgical and Materials Transactions B, 1999, 30(3): 393-401. [13] Contreras M L, Arostegui J M, Armesto L. Arsenic interactions during co......
, SUN W. Kinetics of high-sulphur and high-arsenic refractory gold concentrate oxidation by dilute nitric acid under mild conditions [J]. Miner Eng, 2009, 22(2): 111-115. DOI: 10.1016/j.mineng. 2008.05.001. [17] WANG Guo-hua, XIE Shui-bo, LIU Xin-xing, WU Yong-hong, LIU Ying-jiu, ZENG Tao-tao. Bio-oxidation of a high-sulfur and high-arsenic refractory gold concentrate using a two-stage process [J......
was determined from solution assays, mass of concentrate filled and the initial head grade, as well as on the basis of assays of the residual solids. The extractions of copper, iron and silica..., respectively. The other impurities such as zinc, cadmium, nickel, antimony and arsenic, which are deleterious to copper electrowinning, were at very low level. Hence, the leaching liquor obtained......
="ChDivSummary">The Sarcheshmeh copper flotation circuit is producing 5×104 t copper concentrate per month with an averaging grade of 28% Cu in rougher,cleaner and recleaner stages.In recent years... of reagents,decreasing of the copper concentrate grade,increasing of Al2O3 and SiO2 in the copper concentrate,and needing a higher temperature in the smelting process.The evaluation of the composite samples......
Moisture effect on the combustion of a single copper concentrate particle in a flash smelting furnaceE.Hassan Zaim1,S.H.Mansouri11. Department of Mechanical Engineering, School of Engineering, Shahid Bahonar University摘 要:A mathematical model has been presented to study the combustion of a single copper concentrate particle with high moisture content......
Leaching of a copper flotation concentrate with ammonium persulfate in an autoclave systemM.Deniz Turan1,H.Soner Altundogan21. Department of Metallurgical and Materials Engineering, Firat University2. Department of Bioengineering, Firat University摘 要:The leaching behavior of a copper flotation concentrate was investigated using ammonium persulfate(APS......
