欢迎登录材料期刊网

材料期刊网

高级检索

  阐述了可能取代氰化浸金的高效、无毒碱性硫脲浸金的悁究现状。相比酸性硫脲浸金,碱性硫脲浸金具有溶金恒择性好,溶惉的再生及净化工恅相对容惦等优点。阐明了碱性硫脲浸金原理及金在碱性硫脲溶惉中的溶解机理,对碱性硫脲溶惉中的稳定剂及悦化剂的恒择做了详细探讨。最后,指明了碱性硫脲浸金所取得的成果及总悹解决的问题,并展望了其发展趋势。

The recent research progresses of gold leaching with alkaline thiourea solution were summarized. This method is efficient, nontoxic and the most possible to substitute for dissolving gold with cyanide solution. Comparing with gold leaching in acidic thiourea solution, the advantages of gold leaching by alkaline thiourea solution are good selectivity, easier to regenerate and to purify the lixiviums. The principles and mechanisms of gold leaching with alkaline thiourea solution were stated. Stabilizers and oxidants of gold leaching with alkaline thiourea solution were discussed in detail. In the end, the achievements and unresolved questions of gold leaching with alkaline thiourea solution were pointed out, and the developing trends were expected.

参考文献

[1] Gaspar V;Mejerovich A S;Meretukov M A et al.Practical application of potential-pH diagrams for Au-CS(NH2)2-H2O and Ag-CS(NH2)2-H2O systems for leaching gold and silver with acidic thiourea solution[J].HYDROMETALLURGY,1994,34(05):369-381.
[2] 王清江;程圭芳;宗巍.硫脲法浸取硫化金矿的工艺改进研究[J].华东师范大学学报(自然科学版),1998(01):61-65.
[3] 李进善.浸金体系中影响硫硫脲消耗因素的研究[J].化工冶金,1994(03):229-234.
[4] 王周谭.无氰浸金技术在我国的研究应用现状[J].黄金科学技术,1995(06):9.
[5] Gonzalo Garcia;Vicente A. Macagno;Gabriela I. Lacconi .Study of thiourea adsorption onto polycrystalline gold electrodes[J].Electrochimica Acta,2003(9):1273-1277.
[6] 郭观发;胡岳华;邱冠周 .硫脲提金理论研究-金溶解动力学[J].黄金,1994,15(04):43-48.
[7] Andersen J B;Fitzpatrick B E;Duyvesteyn W P G .Thiourea processing at the westwego gold project of Plenty River Mining Company[J].Delft Progress Report,1989,13(04):409-427.
[8] Zhang Chuanfu;Chai Liyuan;Zhong Haiyuan .Selective dissolution of gold in an alkaline thiourea solution by electrolysis[J].Journal of Central South University of Technology,1997,4(02):73-78.
[9] 萨本嘉;张方宇;程华 .碱性硫脲溶金的研究[J].黄金,1984,5(03):45-47.
[10] Chai Liyuant,Masazumi Okido.DISSOLUTION THEORY OF GOLD IN ALKALINE THIOUREA SOLUTION(I) Anodic Behavior on Gold in Alkaline Thiourea Solution Containing Na2SO3[J].中国有色金属学会会刊(英文版),1999(01):145-151.
[11] Dawei Wei;Liyuan Chai;Ryoichi Ichino;Masazumi Okido .Gold leaching in an alkaline thiourea solution[J].Journal of the Electrochemical Society,1999(2):559-563.
[12] 章建民;杨丙雨;刘传胜 等.硫脲浸金剂理的探讨-吸附络合物观点[J].黄金,1980,1(02):37-40.
[13] 郑粟,王云燕,柴立元.基于配位理论的碱性硫脲选择性溶金机理[J].中国有色金属学报,2005(10):1629-1635.
[14] 郑粟,王云燕,柴立元,张晓飞.高稳定性碱性硫脲体系对不同类型金矿的适应性[J].过程工程学报,2005(03):289-294.
[15] 王云燕,柴立元.金在碱性硫脲溶液中溶解的电化学动力学[J].过程工程学报,2008(03):529-534.
[16] 王云燕,柴立元.硫脲在碱性介质中的电化学行为[J].中国有色金属学报,2008(04):733-737.
[17] 柴立元,王云燕.Electrochemical behaviors of gold and its associated elements in various complex agent solutions[J].中南工业大学学报(英文版),2003(04):287-291.
[18] 黄礼煌 .硫脲溶金机理的初步探讨[J].黄金,1980,1(03):25-28.
[19] Gabra G.A kinetic study of the leaching of gold from pyrite concentrate using acidified thiourea[M].Precious Metals:Mining,Extraction and Processing,1984:145-172.
[20] 夏光祥;汪丹 .硫脲(IIL)法提金反应特性研究-工艺过程物理化学初探[J].黄金,1988,9(06):49-56.
[21] 柴立元,Masazumi Okido.Na2SO3加速碱性硫脲溶液溶金的机理初探[J].湖南有色金属,2001(02):21-23.
[22] 王云燕,柴立元,闵小波,彭兵,何德文.Na2SiO3对碱性硫脲溶液选择性溶金的影响[J].中南工业大学学报(自然科学版),2003(06):611-614.
[23] 吴骏 .废弃电路板硫脲提金[D].上海:东华大学,2008.
[24] 柴立元,闵小波.亚硫酸钠对碱性硫脲稳定作用的构效关系[J].中南工业大学学报(自然科学版),2002(05):473-476.
[25] 王海中 .碱性硫脲提金体系稳定性的试验研究[D].赣州:江西理工大学,2007.
[26] 王云燕,柴立元,闵小波,何德文,彭兵.Optimization of efficient stable reagent of alkaline thiourea solution for gold leaching[J].中南工业大学学报(英文版),2003(04):292-296.
[27] 郑粟 .高稳定性碱性硫脲体系清洁浸金的理论基础研究[D].中南大学,2006.
上一张 下一张
上一张 下一张
计量
  • 下载量()
  • 访问量()
文章评分
  • 您的评分:
  • 1
    0%
  • 2
    0%
  • 3
    0%
  • 4
    0%
  • 5
    0%