共搜索到21880条信息,每页显示10条信息,共2188页。用时:0小时0分0秒615毫秒
of CaO-SiO2 binary slags equilibrated with Si-Ca binary metal system based on the minimized Gibbs free energy principle of a close system, in which the reaction ability of components in slags was presented... activity in slags. The determined standard molar Gibbs free energy change for reaction [Ca]+0.5(SiO2)= (CaO)+0.5[Si] from the developed thermodynamic model is =-89 532.7-21.8T (J/mol) with reliable......
firstly in the oxidation zone, the low-lead slag is produced secondly in the later zone, and the oxidation smelting temperature should be low. Key words: lead flash smelting; Gibbs free energy minimization...能[16-18]和相关活度因子[19-20]分别列于表1和2. 表1 组分的标准生成吉布斯自由能 Table 1 Standard formation Gibbs free energy of components 表2 组分的活度因子 Table 2 Activity factors of components 2 模型验证 模拟......
......
......
of Nonferrous Metals Society of China, 2010, 20(1): 165-170. [23] GAUTAM R, SEIDER W D. Computation of phase and chemical equilibrium: Part I. Local and constrained minima in Gibbs free energy[J]. AIChE... and Technology, Ganzhou 341000,China) Abstract: Based on the principle of Gibbs free energy minimization, the multi-phase equilibrium mathematical model of the copper flash converting process......
Calculation of free energy of Al-Cu-Li alloy under electric field ZHANG Jian-jun(张建军)1, WANG Yong-xin(王永欣)1, CHEN Zheng(陈 铮)1, 2, LIU Bing(刘 兵)1 1. School of Materials Science and Engineering...; Abstract: Based on Thomas-Fermi model, the interior potential boundary condition with the effect of electric field was defined, the calculation method of free energy for atom cluster under......
; Mg-Al-Ca alloy; Al2Ca; Miedema model; Chou model; Gibbs free energy Gibbs free energy and activity coefficients of different components in ternary system than the other thermodynamic......
......
......
, Changsha 410083, China) Abstract: The removal of vanadium from the alkaline sodium chromate solution with addition of lime was investigated based on the calculation of reaction Gibbs free energy...; vanadate removal; Gibbs free energy; equilibrium solubility 我国是铬盐生产大国,产量占世界总产量的35%以上.目前,铬铁矿无钙焙烧法是铬盐生产技术发展的趋势.采用无钙焙烧生产工艺时,铬铁矿中钒矿物可生成可溶性的钒酸钠,在熟料浸出时钒酸钠随铬酸钠一并进入溶液中,造成铬酸钠碱性溶液(以Na2Cr2O7·2H2O计,浓度约300 g/L)中钒浓度(以V2O5......