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region of pH values, where I-, I3- and IO4- ions are capable to form complex compounds with metals. Key words: gold; hydrometallurgy; iodine-iodide leaching; non-cyanide lixiviants 1 Introduction... methods, mainly by cyanidation [11-14]. Cyanide consumers include iron, copper, zinc, cobalt and nickel ions, etc. [5]. It has also been reasoned that cyanide consumption was related to the formation......
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Zincate mechanism on cast Al-Si alloy in non-cyanide multi-metal zincate solutions HUANG Xiao-mei(黄晓梅), LI Ning(李 宁), LI De-yu(黎德育), JIANG Li-min(蒋丽敏) Department of Applied Chemistry, Harbin... energy of zincate reaction in non-cyanide multi-metal zincate solution is smaller than that in simple zincate solution, and precipitation sequence of all the metals in zincate solution is Cu, Ni, Fe......
Effect of non-cyanide zincation process parameters on the microstructure of the zincation layer on A356 alloysZHU Zhaojun1),and HUANG Xiaomei2)1) School of Materials Science and Engineering,Harbin...">The effects of non-cyanide zincation process parameters on the microstructure of the zincation layer on A356 alloy were investigated by scanning electronic microscope.With the increasing of zincation time......
behavior of Au bumps during non-cyanide electroplating MI Qing-xia, HUANG Ming-liang, WANG Lai (State Key Laboratory of Materials Modification by Laser, Ion and Electron Beams, School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China) Abstract: The effect of current density (J) on the growth behavior of Au bumps in a stable non-cyanide gold......
, ZHAO Zhi-qiang, LUO Si-gang, ZHAO Jie. Development status and application prospect of non-cyanide gold leaching technology[J]. Gold, 2008, 39(4): 53-58. [28] 赵留成. 载金硫化物中性焙烧-非氰浸金过程的研究[D]. 北京: 北京科技大学, 2016. ZHAO Liu-cheng. Research on neutral roasting of gold-bearing sulfide and non-cyanide leaching of gold[D]. Beijing: Beijing University of Science and Technology, 2016. [29] 徐 涛, 赵留成, 李绍英. 响应面法优化金......
学技术, 2011, 19(6): 57-61.ZHONG Jun. Reseatch and application status of non-cyanide gold leaching technology[J]. Gold Science and Technology, 2011, 19(6): 57-61. [2] ALTANSUKH B, BURMAA G, NYAMDELGER S... is reasonable. Meanwhile, the process of neutral roasting and gold self-leaching of gold concentrate provides a new way for the high-efficient non-cyanide leaching. Key words: gold concentrate......
无氰镀镉-钛工艺标准分析及应用 王维1,张家付1 (1.中航飞机起落架有限责任公司工程技术研究中心工艺所,陕西,汉中,723200) 摘要:为了适应某工程起落架300M钢零件的加工要求,分析了国内航标,某所所标和型号标准3项无氰镀镉-钛工艺标准的异同和低脆性原理,参照3项标准自行制定了无氰镀镉一钛工艺流程.生产结果表明:根据实际情况灵活采用相应的标准值,可以很好地满足生产要求. 关键词:无氰镀镉-钛; 300M超高强度钢; 工艺标准; 氢脆; 300M uhrastrength steel; non-cyanide Cd-Ti plating; processing standard; [全文内容正在添加中] ......
lixiviants; gold extraction; low-toxic process; [全文内容正在添加中] ......
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