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Role of ore mineralogy in optimizing conditions for bioleaching low-grade complex sulphide ores P. A. OLUBAMBI1, 2, S. NDLOVU1, J. H. POTGIETER1, J. O. BORODE2 1. School of Chemical...; Abstract: The role that ore mineralogy plays in understanding and optimizing the conditions favouring the bioleaching of complex sulphide ore containing......
laterite ores. First of all, silicon and magnesium were removed from lateritic ore by high concentration sodium hydroxide leaching and carbonation respectively, so as to enrich nickel. Then the method... were recycled, thus the process was a green technology that having good social benefit. Key words: nickeliferous laterite ore; kinetics; silicon; magnesium; nickel......
Reduction Kinetics of Nickel Sulphide刘中华,刘纯鹏摘 要:<正> Reduction kinetics of Ni3S2 was experimen-tally studied by following the time required forcompletion of the hydrogen reduction reaction inthe presence of calcium oxide.A simple empiricalintegration equation,derived for describing the ef-fect of CaO/S molar ratio,temperature,hydrogenconcentration......
J. Cent. South Univ. (2020) 27: 3278-3289 DOI: https://doi.org/10.1007/s11771-020-4546-0 Cations stress on low-grade nickel sulfide ore oxidation leaching KANG Jin-xing(康金星), WANG Xin(王鑫), WANG Ya... stress of magnesium ion and sodium ion on the low-grade nickel sulfide ore oxidative leaching in simulated sulfuric acid solutions were investigated. This study was performed in two courses, including......
particle sizes on the dissolution behaviour of a low grade complex sulphide ore was investigated through bioleaching experiments and electrochemical technique. Investigations were carried out... prepared from the two major sulphide mineral rich phases (sphalerite-rich and galena-rich) and a complex mineralogical phase of the bulk ore. Bioleaching studies reveal the highest recoveries......
Leaching of nickel laterite ore assisted by microwave technique ZHAI Xiu-jing(翟秀静), WU Qiang(武 强), FU Yan(符 岩), MA Lin-zhi(马林芝), FAN Chuan-lin(范川林), LI Nai-jun(李乃军) School... loss of nickel in the jarosite precipitate. Key words: nickel laterite ore; leaching; microwave; jarosite; pre-treatment......
Article ID: 1003-6326(2005)06-1373-07 Relationship between solids flux and froth features in batch flotation of sulphide ore YANG Xiao-sheng(杨小生)1, Aldrich Chris2 (1. Institute...: The froth features in the batch flotation of a sulphide ore were investigated by using the digital image parameters of the froth, the small number emphasis(Nsne), the average grey level(Dagl......
not be detected with X-ray diffraction. The cupric chloride leaching of the sulphide concentrate at various durations and solid/liquid ratios at 100 ℃ shows that the rate of dissolution of the ore... that is to dissolve the minerals before extraction of principal metals by appropriate methods[1-2]. The leaching of the sulphide ore was generally carried out in sulphuric media[3-4......
