共搜索到12098条信息,每页显示10条信息,共1210页。用时:0小时0分0秒583毫秒
parameters including the pH value, ferrous and ferric concentration, bacterial adsorption rate and copper leaching efficiency in the leaching solution were investigated. The results show that the ferric... of the chalcopyrite. Key words: chalcopyrite; jarosite; bioleaching; bacterial adsorption; hydrolysis 黄铜矿是重要的铜矿资源,约占世界铜矿资源的70%,也是开采最多的铜矿物.从黄铜矿中提炼铜的传统方法是火法冶炼,其具有生产效率高,铜回收率高等优点,但生产过程中产生大量SO2烟气严重污染环境.因此......
polarization curves show that RE can promote cathodic polarization of electro deposition course. The influence of the RE on microstructure of coating probably is the result of the specific adsorption......
Effects of heat treatment on characteristics of porous Ni-rich NiTi SMA prepared by SHS technique CHU Cheng-lin(储成林)1, CHUNG Jonathan-CY(钟志源)2, CHU Paul-K(朱剑豪)2 1. Department of Materials Science and Engineering, Southeast University, Nanjing 210096, China; 2. Department of Physics and Material......
Trans. Nonferrous Met. Soc. China 25(2015) 2415-2421 Non-isothermal thermal decomposition kinetics of high iron gibbsite ore based on Popescu method Zheng-gen LIU1, Zheng WANG1, Jue TANG1, Hong-tao..., China Received 16 September 2014; accepted 15 April 2015 Abstract: The thermal decomposition kinetics of high iron gibbsite ore was investigated under non-isothermal conditions. Popescu method......
was studied. Testing methods of solution chemistry analysis, determination of adsorption and potentiodynamic test, the solution surface tension test reveals the enhancement mechanism of Tween-20... addition of the Tween-20, the adsorption of oleic acid on diaspore increases. Key words: diaspore; oleic acid; flotation; Tween-20; potentiator 我国铝土矿资源丰富[1],居世界第7位.中国的铝土矿以一水硬铝石为主,占全国铝矿资源的85%[2-3],与国外以三水......
: Geological Publishing House, 2008: 215-216. [3] WANG J, SOMASUNDARAN P, NAGARAJ D R. Adsorption mechanism of guar gum at solid-liquid interfaces[J]. Miner Eng, 2005, 18(1): 77-81. [4] 刘谷山, 冯其明, 欧乐明, 卢毅屏, 张国范..., CHEN Jin, MAO Ju-fan. Adsorption and activation of metal ions to andalusite[J]. Nonferrous Metals, 1996, 48(2): 35-39. [13] 何小民, 邓海波, 朱海玲, 吴承桧. 金属离子对红柱石与绢云母可浮性的影响[J]. 矿冶工程, 2012, 32(2): 55-57, 61. HE......
. Influence of grinding method on complex sulphide ore flotation: A pilot plant study[J]. International Journal of Mineral Processing, 1993, 38: 157-175. [6] Jung R F, James R O, Healy T W. Adsorption.... Adsorption studies of smithsonite flotation using dodecylamine and oleic acid[J]. Miner Metall Process SME, 2006, 23: 87-96. [8] Griffiths P C, Fallis I A, CHUENPRATOOM T, WATANESK R. Metallosurfactants......
data, a novel constitutive relation combining a series of models was developed, including Zener-Hollomon parameter (Z), DRX critical model and kinetics model. The results show that the hot-deformed... of large strain should be more concerned during plastic forming. Furthermore, the predicting accuracy with the DRX kinetics model was testified by an electron back-scattered diffraction (EBSD......
temperature, superior hydrogen desorption property, and lower hydrogen desorption activation energy, which is thought to be the reason of its better hydrogen storage kinetics, as compared with RE=Sm... kinetics, impede their commercial application in hybrid electric vehicle [11]. Therefore, the hydrogen storage thermodynamics and kinetics of Mg and Mg-based alloys need to be further ameliorated. It has......
2015 Abstract: The thermal stability and the kinetics of grain growth of nanocrystalline Mg-6Al-1Zn and Mg-6Al-1Zn-1Si alloys prepared via mechanical alloying were investigated. It started... (TEM) and energy dispersive spectrometry. The kinetics of grain growth in isothermal annealing was investigated. The XRD results show that, although the grain sizes of both material systems increase......