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into our understanding of metabolic potential in biological desilication reactor ecosystems.Key words:rutile; functional gene diversity; silicate bacteria; bioleaching......
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J. Cent. South Univ. (2016) 23: 39-43 DOI: 10.1007/s11771-016-3046-8 Kinetic study on leaching of nickel from Turkish lateritic ore in nitric acid solution Tevfik AGACAYAK, Veysel ZEDEF, Ali ARAS... of nickel from lateritic ore in nitric acid solution was investigated. Experimental parameters used were stirring speed (100-600 r/min), temperature (40-96 °C), nitric acid concentration (0.1-2 mol/L......
out on orbital shakers using an enriched salt solution containing MgSO4.7H2O (0.4 g/L), (NH4)2SO4 (0.2 g/L), K2HPO4.3H2O (0.1 g/L) and KCl (0.1 g/L) as the growth media. 2.3 Bioleaching experiments Bioleaching experiments were carried out in 250 mL Erlenmeyer flasks with a working volume of 100 mL. A 1% (w/v) ore in enriched salt solution (90 mL) was prepared in flasks, which were......
; (3) In addition to the bioleaching progress, chalcopyrite may be oxidized as Eq.(4) in sulphuric acid solution, where the sulfur formed by chemical leaching is also oxidized by Eq.(3... Bioleaching of chalcopyrite by UV-induced mutagenized Acidiphilium cryptum and Acidithiobacillus ferrooxidans XU Ai-ling(徐爱玲), XIA Jin-lan(夏金兰), ZHANG Shuai(张 帅), YANG Yu(杨 宇), NIE......
J. Cent. South Univ. (2021) 28: 1089-1099 DOI: https://doi.org/10.1007/s11771-021-4682-1 Solution and aging behavior of precipitates in laser melting deposited V-5Cr-5Ti alloys CHAI Peng-tao(柴鹏涛)1...) additive manufacturing process, showing precipitates aggregated near the grain/dendrite boundaries. Since the mechanical properties of vanadium alloys considerably depend on the precipitates, solution......
J. Cent. South Univ. (2020) 27: 1432-1442 DOI: https://doi.org/10.1007/s11771-020-4379-x Numerical analysis of aerated heap bioleaching with variable irrigation and aeration combinations HUANG Ming... 100083, China Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020 Abstract: Forced aeration is an effective way to accelerate the heap bioleaching process......
Feasibility study on heap bioleaching of chalcopyriteBo-Wei Chen,Jian-KangNational Engineering Laboratory of Biohydrometallurgy,General Research Institute for Nonferrous Metals摘 要:Bioleaching of chalcopyrite often encountered the formation of passivation layer,which inhibited the leaching process and resulted in a low leaching rate.This inhibitory......
and water were made. The leaching experiment was carried out to explore the evolution rules of the concentration of the leaching solution. The leaching mechanism of salt and kinetics of the multi-phase... analyzed. The results show that, with the increase of leaching time, the concentration of the leaching solution goes through three stages: exponential growth phase, linear growth phase and stable phase......
Effects of solution heat treatment on microstructure and mechanical properties of AZ61-0.7Si magnesium alloy YANG Ming-bo(杨明波)1, LIANG Xiao-feng(梁晓峰)1, LI Hui(李 晖)1, PAN Fu-sheng(潘复生)2 1... 400044, China Abstract: The effects of solution heat treatment on the microstructure and mechanical properties of AZ61-0.7Si magnesium alloy were investigated. The results indicate that the solution......