金属学报  1993, Vol. 29 Issue (9): 47-52

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FeCl_3浸取含Au复杂硫化矿的动力学研究

方兆珩;MUHEMMEDM

中国科学院化工冶金研究所;RoyalInstituteofTechnology;Sweden

LEACHING KINETICS OF Au-BEARING SULPHIDE CONCENTRATE BY FeCl_3 SOLUTION

FANG Zhaoheng;MUHEMMED M Institute of Chemical Metallurgy; Academia Sinica;Beijing Royal Institute of Technology; Sweden

方兆珩;MUHEMMEDM. FeCl_3浸取含Au复杂硫化矿的动力学研究[J]. 金属学报, 1993, 29(9): 47-52.
, . LEACHING KINETICS OF Au-BEARING SULPHIDE CONCENTRATE BY FeCl_3 SOLUTION[J]. Acta Metall Sin, 1993, 29(9): 47-52.

摘要 参考文献 相关文章 Metrics 全文: PDF(458 KB)   摘要: 研究了FeCl_3溶液浸取复杂含金硫化精矿中有价金属Cu,Ag,Pb和Zh的过程,考察了主要过程参量对浸取速率的影响.实验数据用非线性回归方法处理,给出动力学模型,说明精矿中Cu的溶解过程由表面化学反应控制,其速率是Fe~(3+)的0.5级和Cl~(-)的零级反应.实验条件下Cu,Ag,Ph和Zn的最终浸取率分别达到96,95,90和91％,超过90％的Fe进入浸取液,总硫的70％以上转化为元素硫,而Au的浸取率则小于3％表明FeCl_3溶液浸取是含Au复杂硫化精矿预处理并回收有价金属的有潜力的方法 关键词 ： FeCl_3,  含Au硫化精矿,  浸取动力学     Abstract：A process extracting Cu, Ag, Pb and Zn from a bulk sulphide concentrate withFeCl_3 solutions was investigated. The kinetics of the process and effective parameters wereexamined based on a model of non-reaction shrinking core and an approach of non-linearregression. It was found that the rate of Cu dissolution in the process was controlled by a sur-face reaction which was a half order with respect to Fe~(3+) ions and zero order with respect toCl_-ions. More than 96% Cu, 95% Ag, 90% Pb and 9l% Zn were extracted while over70% sulphide were converted to elemental S and more than 97% of Au were left in theleached residue under the conditions studied. Thus, the leaching process by FeCl_3 and NaClsolution was a more potential technology for pre-treating of Au-bearing sulphide concen-trate and recovery of valuable metals. Key words： FeCl_3    leaching kinetics    Au-bearing sulphide concentrate 收稿日期: 1993-09-18      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 方兆珩 MUHEMMEDM 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1993/V29/I9/47 1 Sohn H Y, Wadsworth M E. Rate Processes of Extractive Metallurgy. New York: Pelenum, 1979: 8 2 Palmer B R, Nebe C O, Rau M F, Fuerstenau M C. Metall Trans, 1981; 12B: 595 3 Hirato T, Kinoshita M, Awakura Y, Majima H. Metall Trans, 1986; 17B: 19 4 O'Malley M L, Liddell K C. Metall Trans, 1987; 18B: 50 No related articles found! Viewed Full text Abstract Cited   Shared      Discussed