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on the rusting rate of metallic iron in Panzhihua reduced ilmenite and separation efficiency of titanium and iron by rusting process were studied. The rusting kinetic of the metallic iron in reduced... to 38.65kJ/mol. The mechanism is that hydrochloride promotes the cathodic reaction of the rusting reaction , thus speeding up the formation and the diffusion rate of Fe2+. Key words: reduced ilmenite......
and reductive degradation of fluoroquinolone pharmaceuticals: Kinetic studies and degradation mechanism[J]. Journal of Physical Chemistry A, 2009, 113(27): 7846-7851. [26] HU Lanhua, STEMIG A M, WAMMER...; 文章编号:1672-7207(2016)01-0338-06 Establishment and analysis of kinetic models for degradation of fluoroquinolones antibiotics by sulfate radical GUO Hongguang1, 2, GAO Naiyun2, ZHANG......
- CO3-LDH. The equilibrium isotherm and kinetic model for the adsorption processes were studied to evaluate the viability and effectiveness of the process. The adsorption mechanism was also discussed... is an important aspect of processes for pollutants removal [17-21]. In order to investigate the adsorption mechanism of Phe on CLDH, the Lagergren’s first order kinetic model and the Ho’s pseudo-second-order......
法炼镁化学反应动力学的影响规律 Fig. 5 Effect of silicon stoichiometry on chemical kinetic mechanism (30 min) 虽然公式(1),(2)和(3)分别给出了配硅比为1.0,1.1和1.2条件下的化学反应动力学方程,但使用起来比较繁琐,且不能覆盖配硅比1.0~1.2的全部数据,给后续动力学模型与传热模型的结合带来困难...影响规律 Fig. 9 Effect of hydration activity of calcined dolomite on chemical kinetic mechanism (30 min) 由图9可知,在相同还原温度条件下,还原率随着煅白水化活性度的降低而呈现下降趋势,煅白水化活性度对还原率的影响比配硅比大.在1200 ℃下反应30 min后,当煅白水化活性度由33%降至......
, the reduction kinetic mechanism function and isothermal kinetic equation of fluoroapatite in Ca10(PO4)6F2-SiO2-Fe2O3-C system were investigated. The results show that increasing the amounts of silica...磷灰石还原反应机理函数及反应速率常数 Table 2 Mechanism function and apparent reaction rates of fluorapatite reduction 对比表3中两种机理函数的相关系数可知,氟磷灰石在Ca10(PO4)6F2-SiO2-Fe2O3-C体系下还原反应的最佳动力学机理函数为A1/3:1/3(1-α)[-ln(1-α)]-2......
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...: solution mining; salt rock; kinetic model; leaching rate 近几年来,我国西部发现多个大型砂岩型矿床,低品位砂岩型矿床一般不利于传统方法的开采,而溶浸开采凭借着其工艺简单,成本低,环境友好,资源节约等优势,可将其合理经济回收.溶浸技术在资源的安全高效开采中具有广阔的应用前景,目前,世界上采用溶浸法生产的铜金属占总产量的20%,约20%左右的铀......
: Kinetic analysis of Ti-Al reaction was conducted through differential scanning calorimetry (DSC), and mechanism of the preparation of titanium aluminides was elucidated. The results show...;Kissinger法;Friedman法 中图分类号:TG146.2 文献标志码:A Kinetic analysis and control action of titanium and aluminium QU Hai-tao1,2, REN Xue-ping1, HOU Hong-liang2, ZHAO Bing2 (1. School......
Trans. Nonferrous Met. Soc. China 27(2017) 2691-2703 Enhancing recovery of uranium column bioleaching by process optimization and kinetic modeling H. ZARE TAVAKOLI1, M. ABDOLLAHY1, S. J. AHMADI2... on the surface of minerals. By using optimal conditions, uranium bioleaching recovery is increased at column and jarosite precipitation is minimized. The kinetic model showed that uranium recovery has......
of kinetic data suggests a mixed control reaction mechanism [7]. 3.2 Leaching studies 3.2.1 Effect of H2SO4 concentration The effect of H2SO4 concentration (3-9 mol/L) on the dissolution of kaolin sample.... From the Arrhenius relation in Fig. 9, the calculated activation energy is 21.60 kJ/mol. To establish the reaction mechanism for the process, linearization of the kinetic curve for effect of particle......
as the kinetics proceeds parabolically. The change of the oxidation kinetics law is caused by tiny zinc particles formed in zinc vapor. The relative kinetic model functions and kinetics parameters of the title reaction were deduced from kinetic theories and the experimental data. The oxidation mechanism of the tiny zinc particles were investigated and the diffusion coefficient of Zn atoms through......