金属学报  2004, Vol. 40 Issue (3): 270-274

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Pt族金属在加压氰化浸出过程中的行为探讨

黄 昆;陈 景

昆明贵金属研究所

Discussion on Behavior of Platinum Group Metals in Pressure Cyanide Leaching

HUANG Kun; CHEN Jing

Institute of Precious Metals

黄昆; 陈景 . Pt族金属在加压氰化浸出过程中的行为探讨[J]. 金属学报, 2004, 40(3): 270-274 .
, . Discussion on Behavior of Platinum Group Metals in Pressure Cyanide Leaching[J]. Acta Metall Sin, 2004, 40(3): 270-274 .

摘要 参考文献 相关文章 Metrics 全文: PDF(13787 KB)   摘要: 对加压氰化浸出过程Pt族金属(Pt, Pd, Rh)行为的研究表明, Pt族金属氰化浸出率的顺序为Pd >Pt >Rh, 而相应氰配合物高温下稳定性顺序为RhPt> Pd。浸出过程中的行为规律实际上反映的是表面态Pt族金属的化学反应活性顺序, 也即金属的原子态稳定性和金属键强度两种变化规律的综合表现。而Pt族金属氰配合物高温稳定性可以由“重Pt族配合物比相应结构的轻Pt族配合物的热力学稳定性更大, 动力学惰性更高”以及金属氰配离子。 关键词 ： Pt族金属,  加压氰化,  高温氰化     Abstract：Studies on behavior of platinum--group metals(PGMs) in pressure cyanide leaching indicate that the percent PGM extraction follows the order of Pd >Pt >Rh, while the chemical stability of PGM cyanide complexes at high temperature is RhPt > Pd. The leaching behavior of PGMs could be described by their chemical reaction activity of surface state, and is the synergetic influence of metal—bond strength and atomic--state stability. The high temperature stability of PGM cyanide complexes could be explained from the heavy platinum--group complexes having higher thermodynamic stability and kinetic inertia than light platinum--group complexes with same structure, and from the difference of chemical reaction activity of PGM cyanide complex ions. Key words： platinum group metal (PGM)    pressure cyanidation    收稿日期: 2003-03-11      ZTFLH:  TF111.31   服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 黄昆 陈景 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y2004/V40/I3/270 [1] Mclnnes M F, Sparrow G J, Woodcock J T. Hydrometallurgy, 1993; (31) : 157 [2] Atkinson G B, Kuczynski R J, Desmond D P. US Patent No 5160711, 1992 [3] Desmond D P. High-temperature Cyan(?)de Leachign of Platinum Group Metals from Automobile CatalystsLaboratory Test. RI-9384, United States: Bureau of Mines, 1991． [4] Kuczynski R J. High-temperature Cyanide Leaching of Platinum Group Metals from Automobile CatalystsProcess Development Unit. RI-9428, United States: Bureau of Mines, 1992 [5] Chen J Proceeding of 2002 China Peak Symposium of Precious Metals. Beijing Antaike Information Corp Lts. Shanghai: China Nonferrous Metal Industrial Information Center, 2002:15(陈景.2002年中国贵金属高峰研讨会会议论文集.上海:北京安泰科信息开发有限公司,2002:15) [6] Chen J. Huang K. Chinese Patent No. 01130222． 4, 2001 [7] Chen J Chin J Nonferrous Met, 2001; 11(2) : 286(陈景 .中国有色金属学报,2001;11(2) :286-293) [8] Chen J. Chin Eng Sci, 2000; 2(7) : 66(陈景.中国工程科学 2000;2(7) :66) [9] Chen J. The PGM Chemical Metallurgy Theory and Practice. Kunming: Yunnan Sci & Tech Press. 1995: 1, 42． 7(陈景.Pt族金属化学冶金理论与实践.昆明:云南科学技术出版社,1995:1,42． 7 [10] Hancock R D. Inorg Chem, 1976; 15(4) : 995 [11] Chen J. Chin Eng Sci, 1999; 1(2) : 34(陈景.中国工程科学,1999;1(2) :34) [1] 王志; 毕诗文; 杨毅宏 . 添加剂对铝酸钠溶液碳酸化分解产物粒度和强度的影响[J]. 金属学报, 2004, 40(9): 1005-1008 . Viewed Full text Abstract Cited   Shared      Discussed