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,本实验分别考察添加晶种,表面活性剂PEG2000和絮凝剂PAM(其中晶种Fe(OH)3用量10 g/L,PEG2000和PAM添加量分别为20 mg/L)对除铁率,钴损失率,除铁渣形貌及粒度,浆液沉降性能的影响规律.在pH=2.6,温度为70 ℃,双氧水用量为1.5倍理论量,反应时间4 h,操作方式采取半连续-并加法的固定条件下,实验结果如表1,图6及图7所示. 由表1可知,与空白实验相比,添加晶.... 高铁闪锌矿赤铁矿法除铁中锌离子和镁离子的影响及存在机理[J]. 中国有色金属学报, 2014, 24(11): 2906-2913. YANG Fan, DENG Zhi-gan, WEI Chang, LI Xing-bin, LI Cun-xiong, QIU Wei-jia, ZHU Ru-long. Effect and existence mechanism of zinc ion......
H3IO6:5 mg KI in 50 mL H2O:2 mL HF[58]; Copper etch, contains 600 mL HF:300 mL HNO3:28 g Cu(NO3)2:3 mL H2O[59]; Copper Displacement, contains 55 g CuSO4:SH20:950 mL H2O:50 mL HF; CP-4, contains 3 mL......
A universal thermodynamic model of calculating mass action concentrations forstructural units or ion couples in aqueous solutions and its applications in binary and ternary aqueous solutions YANG Xue-min1, ZHAO Wei-jie2, 3, CHAI Guo-ming2, GUO Han-jie2, ZHANG Qiang3 1. State Key Laboratory of Mu......
series of measurements) and mechanically activated (the second series of measurements) under the same experimental conditions, where in each case about 10 mg powder sample was used. Isothermal mass......
. MAHMOOD et al [42] used an electronic digital balance with 0.1 mg accuracy to measure the initial and final mass of the specimen. The masses of all the specimens were measured before and after......
difference between liquid and solid phases (△cp) and the enthalpy of fusion (ΔH) of Zn-Al-Bi eutectic alloy (5-10 mg) were determined because they are very important parameters for technological......
, ZHENG Ming-yi. Influence of secondary extrusion on microstructures and mechanical properties of ZK60 Mg alloy processed by extrusion and ECAP [J]. Transactions of Nonferrous Metals Society of China......
,Ti,Mg)骨架中浸渗PTFE等聚合物的方式制备RMS. 浸渗工艺还被用于制备穿甲用非晶/W复合材料.刘娜[67]采用压渗和快速冷淬工艺制备了具有双相互穿结构的Zr41.25Ti13.75Ni10Cu12.5Be22.5/W复合材料,材料的压缩强度达3420 MPa,断裂变形量约46.7%.LI等[68]也采用压渗和快速冷淬工艺制备了强度约2200 MPa,塑性变形量大于30%的双连续相......
from the analysis. The phase-II dolomite intergrowths and phase-III dolomite veins show similar compositions (Table 2): CaO: 30.14%–32.99%; MgO: 17.78%– 20.16%; Ca/Mg ratio: ca.1.6; SrO and BaO... system has long been influenced by saline fluids rich in Ca, Mg, Na and bicarbonates. Fluid temperature and salinity were the major variables in this diagenetic environment. The fluid inclusions......
显微测温学的系统研究,结合阴极射线激发荧光(CL)图像,建立流体包裹体形成的相对时序与矿物生成顺序的关系.在此基础上,运用LA-ICP-MS分析技术,精确测定各世代单个流体包裹体中主量元素(如K,Na,Ca,Mg等)和成矿元素(如Cu,Pb,Zn,Au,As等)的组成,可以提取由成矿流体成分变化所反映的成矿过程等方面的重要信息.显微红外测温技术在矿床研究中得到了重要的应用.热液矿床中大多数金属矿物......