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sulfate was innovatively put forward.The soak leaching process and the column leaching process were investigated in the present study.It was determined that ion-exchangeable phase could be released... and the bigger cerium partition in the leaching liquor.In the ferrous sulfate column leaching process,the rare earth leaching rate and the rare earth efficiency were a little higher than with(NH4)2SO4 agent......
sulfate was innovatively put forward.The soak leaching process and the column leaching process were investigated in the present study.It was determined that ion-exchangeable phase could be released... and the bigger cerium partition in the leaching liquor.In the ferrous sulfate column leaching process,the rare earth leaching rate and the rare earth efficiency were a little higher than with(NH4)2SO4 agent......
Trans. Nonferrous Met. Soc. China 29(2019) 625-633 Simulation of one-dimensional column leaching of weathered crust elution-deposited rare earth ore Ping LONG1,2, Guan-shi WANG3, Jun TIAN1,4, Shi-li.... Solute transport laws of ammonium ions (NH4+) and rare earth ions (RE3+) in column leaching were described by the convection-dispersion equation (CDE). The source and sink in the CDE were determined......
solution during column leaching tests. On the basis of the theories of physical chemistry and seepage flow mechanics, the mechanism by which seepage is enhanced under the effects of the surfactant... the surface of ore, and enhancing the permeability effect. The findings of column leaching tests demonstrated that permeability was substantially improved by the surfactant. In the later period of leaching......
Leaching process of rare earths from weathered crust elution-deposited rare earth ore TIAN Jun(田 君)1, 2, CHI Ru-an(池汝安)3, YIN Jing-qun(尹敬群)2 1. School of Resources Processing and Bioengineering...; Abstract: In order to strengthen the leaching procedure, the chemical processes of leaching rare earths (RE......
leaching heap[J]. Transactions of Nonferrous Metals Society of China, 2016, 26(3): 835-841. [9] MANAFI Z, ABDOLLAHI H, TUOVINEN O H. Shake flask and column bioleaching of a pyritic porphyry copper..., WU Ai-xiang, XUE Zhen-lin, WANG Yi-ming. Seepage behavior analysis on column leaching of copper oxide ore based on its hierarchical layered characteristics[J]. Mining Research and Development, 2014......
in saturated ore column. The numerical results and measured values were compared. 2 Experimental 2.1 Experimental materials The experiment was conducted according to dump leaching of copper... of the column leaching cylinder used in experiment was 50 mm, so it is necessary to crash the ore sample to ensure the diameter being less than 10 mm. The distribution of ore particle diameter after......
J. Cent. South Univ. (2020) 27: 1404-1415 DOI: https://doi.org/10.1007/s11771-020-4376-0 Bioleaching of low-grade copper sulfide ore by extremely thermoacidophilic consortia at 70 °C in column... (consisting of A. brierleyi DSM1651 and M. hakonensis HO1-1) were studied in column reactors at 70 °C. Introducing M. sedula copA mutant, a copper sensitive derivative, only had negligible effects......
the negative effects of copper and pyrite on cyanidation and increase the gold recovery rate, the investigation on bio-heap leaching pretreatment was made, by which Cu would be dissolved and gold would be liberated from pyrite. The experiment adopted mixed bacteria, mainly Thiobacillus ferrooxidan (named T.f1), as the bacterial catalyst for bio-preconditioning and was carried out in a PVC column......
mL/s.整个柱浸实验装置各组成部分及名称见图2. 图2 柱浸实验装置图 Fig. 2 Column leaching experimental devicer 1.3 CT扫描实验 采用CT扫描仪对柱状反应器内稀土矿体进行无损探测.德国生产的SOMATOM Definition Flash型X射线CT扫描装置图如图3所示.为确保矿体浸出前后各扫描切片图尽可... and pore dynamics under column leaching of goethitic and saprolitic nickel laterite agglomerates[J]. Advanced Powder Technology, 2016, 23(19): 2370-2376. [14] XU D, LIU L X, QUAST K, ROBINSON D J. Effect......
