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sulphide precipitation of heavy metals from acidic polymetallic aqueous solution by thioacetamide [J]. Industrial and Engineering Chemistry Research, 2012, 51: 954-963. CaCl2-Cu2S-NiS熔盐电解生产Cu-Ni合金 Levent...Trans. Nonferrous Met. Soc. China 28(2018) 2143-2150 Electrolytic production of Cu-Ni alloys in CaCl2-Cu2S-NiS molten salt Levent KARTAL1,2, Servet TIMUR1 1. Department of Metallurgical &......
Fig. 2 Texture and structure characteristics of ores in Jinchuan Ni-Cu-(PGE) deposit 3 Ⅱ-2号矿体铂族元素地球化学特征 样品的原始数据列于表1.Ⅱ矿区矿石ΣPGE含量在44.6×10-9~8526.7×10-9之间,变化幅度很大,其中富铜矿石高于其他矿石1~2个数量级；ΣIPGE含量在...上凸起,与其他矿石中的相反. 表1 金川矿床的PGE,Cu,Ni元素含量及比值 Table 1 Contents of PGE, Ni, Cu in Jinchuan deposit 图3 金川矿床不同类型矿石100%硫化物中铂族元素原始地幔标准化图解(原始地幔值引自文献[24]) Fig. 3 100% sulfide primitive......
and metallogenetic age of Zhuanghe gold deposit, Liaoning province, China WEI Jun-hao(魏俊浩), TAN Wen-juan(谭文娟), GUO Da-zhao(郭大招), TAN Jun(谭 俊), LI Yan-hua(李闫华), YAN Yun-fei(鄢云飞) (Faculty of Earth... are 16.987-17.545, 15.342-15.623, and 38.254-38.744, respectively. The age of the Zhuanghe gold deposit determined by Rb-Sr isochron of the fluid inclusions in quartzes is (143.0±5.8) Ma. These isotopic data suggest......
DOI:10.19476/j.ysxb.1004.0609.2017.03.019 Cu,Ni掺杂FeS2电子结构与光学性质的第一性原理计算 武佳佳,马万坤,焦 芬,覃文庆 (中南大学 资源加工与生物工程学院,长沙 410083) 摘 要:采用基于密度泛函理论框架下的第一性原理平面波超软赝势法,研究Cu,Ni单掺杂与共掺杂体系中FeS2的晶体结构,电子结构和光学性质.结果表明:掺杂后黄铁矿发生晶格畸变,晶格常数变大,掺杂在FeS2禁带中引入杂质能级,使禁带变窄,费米能级上移进入导带,掺杂黄铁矿的态密度穿过费米能级,形成简并半导体,体系的导电率增强.光学性质计算表明:掺杂后介电函数虚部主峰,吸收系数和光电导率均出现红移,峰值减小.共掺杂后的光跃迁强度明显增强,可见光区范围内的光吸收系数和光电导率均增大,说明Cu-Ni共掺杂显著增强FeS2对光的吸收以及光电转换效率......
Effect of Hydrodynamic Conditions on Corrosion Inhibition of Cu-Ni(90/10) Alloy in Seawater and Sulphide Containing Seawater Using 1,2,3-BenzotriazoleB.V.Appa Rao,K.Chaitanya KumarDepartment of Chemistry,National Institute of Technology Warangal摘 要:Electrochemical studies of the effect of hydrodynamic conditions on corrosion inhibition of Cu-Ni(90/10......
文章编号:1004-0609(2010)09-1665-06 AZ31B镁合金表面激光熔覆Cu-Ni合金层 崔泽琴1, 2, 吴宏亮1, 王文先1, 2, 许并社1, 2 (1. 太原理工大学 材料科学与工程学院,太原 030024； 2. 太原理工大学 新材料界面科学与工程教育部重点实验室,太原 030024) 摘 要:针对镁合金表面耐磨性和耐蚀性差的问题,利用横流CO2激光器在AZ31B镁合金表面激光熔覆Cu-Ni合金层,并利用光学显微镜(OM),扫描电镜(SEM)和能谱分析仪(EDS)分析熔覆层与基体的结合界面特征以及显微组织和成分分布情况,测试合金层的显微硬度和耐蚀性.结果表明:合金层与基体结合良好,缺陷较少,但局部存在不均匀的Cu-Ni富集区,且在其边缘区域的枝晶间均匀分布着1~1.5 ?m的十字状Laves相；合金层的硬度分布比较均匀,约为......
Trans. Nonferrous Met. Soc. China 24(2014) 1467-1473 Structure and magnetic properties of Cu-Ni alloy nanoparticles prepared by rapid microwave combustion method J. ARUL MARY1, A. MANIKANDAN1, L...; accepted 7 January 2014 Abstract: Cu-Ni alloy nanoparticles were prepared by a microwave combustion method with the molar ratios of Cu2+ to Ni2+ as 3:7, 4:6, 5:5, 6:4 and 7:3. The as-prepared samples......
belt. The ore-forming material source and metallogenic mechanism were studied to discuss the diagenetic and metallogenic model of Kalatongke Cu-Ni deposit. The results suggest that the sulphur has... magma.Key words:Kalatongke; Cu-Ni deposit; diagenetic and metallogenic model......
A novel process for sorting fine-sized sulphide minerals by biocoagulation H. Z. KUYUMCU, J. PINKA, T. BIELIG Department of Mechanical Process Engineering and Solids Processing... substances, as well as their influence on the selective biocoagulation were studied. Experimental investigations show that the microorganisms and the sulphide particles below 10 ?m coagulate effectively......
