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] by using deep supercooling technologies. SONG et al[21] studied the liquid phase separation of melt-spun Cu-Co alloys in detail. Based on these studies, it is known that the process of the liquid phase... is typical liquid separation microstructure consulting the results of liquid phase separated Cu-Co[16,19,20] alloys. The Cr-rich droplets had formed and the smaller Cr-rich droplets were accumulating......
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of Cu-precipitates 由表3可以看出,除铜后液中铜浓度降低至0.028 g/L,对比表2可知,溶液中钴,锌和锰等金属离子浓度降低幅度较小,铜的沉淀率达到99.91%.铜沉淀物中铜和硫的含量分别为62.69%和32.51%,而钴,锌和锰金属含量仅分别为0.28%,0.11%和0.28%,说明在铜沉淀物中其他金属夹杂损失较少.与原溶液中Cu和Co的离子浓度比为13.0相比,铜沉淀物中m(Cu)/m(Co)提高到达到224. 铜沉淀物的XRD谱见图3,可以看出,铜沉淀物中铜主要以CuS物相存在,该沉淀物可作为优质铜冶炼原料再利用.综上所述可知,加入硫化钠控制合适溶液电位可以实现P204反萃液中铜的选择性沉淀. 图3 铜沉淀物的XRD谱 Fig. 3 XRD pattern of Cu-precipitate 5.2.2 控电位硫化沉钴 控......
萃取过程进行研究.经萃取分离,分别得到含铜和钴的溶液,进一步处理可得到铜和钴产品,实现了从氨性浸出液低浓度铜和钴的高效萃取分离,为水处理铁渣资源的循环开发利用提供了依据. 1 实验 1.1 原料,试剂及仪器 实验所用的料液为水处理铁渣的氨性浸出液,其中,Cu质量浓度为1.24 g/L,Co质量浓度为1.23 g/L,Fe质量浓度为0.3 mg/L,pH为10左右. 萃取剂...钴的萃取分离[J]. 有色金属, 2002, 54(1): 23-26. WANG Chengyan. Separation of Cu, Ni and Co from ammonia solution by solvent extraction[J]. Nonferrous Metals, 2002, 54(1): 23-26. [16] 张阳, 满瑞林, 王辉, 等. 用......
. 从镍转炉渣中回收钴镍铜的理论与技术研究[D]. 长沙: 中南大学, 2006: 19-20. YU Zheng-jun. The study of theory and technology of recovery of Co, Ni and Cu from nickel converter slag[D]. Changsha: Central South University, 2006...镍的化学成分如表1所列,主要元素成分为Fe,Ni,Cu,Co和S.其中Ni,Cu,Co,Mg,Mn和Al的含量通过电感耦合等离子体发射光谱仪(ICP-OES)分析得到,Fet和Fem含量通过滴定法分析得到,S含量通过BaSO4重量法分析得到.低冰镍的X射线衍射(XRD)分析见图1,其主要物相为镍黄铁矿((Fe,Ni)9S8),磁铁矿(Fe3O4),FeNi合金(FeNi3)及斑铜矿(Cu5FeS4......
Short-Range Order in Liquid Al-Cu-Ni-Ce Alloy 边秀房1,孙民华1 (1.Key Laboratory for Liquid Structure and Heredity of Materials, Ministry of Education Department of Materials Sciences and Engineering, Shandong University, Jinan 250061, China) Abstract:The liquid and amorphous structures of Al85Ni10Ce5 and Al85Cu5Ni5Ce5 alloy were studied by X-ray diffraction. The position of the first peak shifts......