Utilization of gold-bearing and iron-rich pyrite cinder via a chlorination-volatilization process

Jian Ding; Pei-wei Han; Cui-cui L&#252;; Peng Qian; Shu-feng Ye; Yun-fa Chen

doi:10.1007/s12613-017-1516-0

Volume 24 Issue 11

Nov. 2017

Turn off MathJax

Article Contents

Article Navigation > International Journal of Minerals, Metallurgy and Materials > 2017 > 24(11): 1241-1250

Jian Ding, Pei-wei Han, Cui-cui Lü, Peng Qian, Shu-feng Ye, and Yun-fa Chen, Utilization of gold-bearing and iron-rich pyrite cinder via a chlorination-volatilization process, Int. J. Miner. Metall. Mater., 24(2017), No. 11, pp. 1241-1250. https://doi.org/10.1007/s12613-017-1516-0

Cite this article as:

Jian Ding, Pei-wei Han, Cui-cui Lü, Peng Qian, Shu-feng Ye, and Yun-fa Chen, Utilization of gold-bearing and iron-rich pyrite cinder via a chlorination-volatilization process, Int. J. Miner. Metall. Mater., 24(2017), No. 11, pp. 1241-1250. https://doi.org/10.1007/s12613-017-1516-0

Citation:

PDF( 2055 KB)

Research Article

Utilization of gold-bearing and iron-rich pyrite cinder via a chlorination-volatilization process

+ Author Affiliations

Corresponding author:
Shu-feng Ye E-mail: sfye@ipe.ac.cn
Received: 2 March 2017; Revised: 5 July 2017; Accepted: 5 July 2017

Abstract

Abstract

The chlorination-volatilization process has been adopted to make full use of gold-bearing and iron-rich pyrite cinder. However, problems of low recovery rate, pulverization of pellets, and ring formation have been encountered during the industrialization of this process. The effects of various parameters on the volatilization rates of valuable metals and on the compressive strength of roasted pellets were investigated in this paper. The parameters include the CaCl₂ dosage, heating temperature, and holding time. The results show that heating temperature is the most important parameter for the recovery of target metals. More CaCl₂ was needed for the recovery of zinc than for the recovery of gold, silver, and lead. CaCl₂ started to react with sulfides/SO₂/SiO₂ at temperatures below the melting point of CaCl₂ to generate Cl₂/HCl. Gaseous CaCl₂ was formed at higher temperatures and could react with any of the components. The compressive strength of roasted CaCl₂-bearing pellets first decreased slowly with increasing temperature at temperatures lower than 873 K, which could result in the pulverization of pellets during heating. Their compressive strength increased dramatically with increasing temperature at temperatures greater than 1273 K. Certain quantities of CaCl₂ and Fe(Ⅱ) could improve the compressive strength of the roasted pellets; however, the addition of excessive CaCl₂ decreased the compressive strength of pellets.
- pyrite cinder;
- gold;
- chlorination;
- oxidized pellets;
- compressive strength

FullText(HTML)

Supplements(0)

References(25)

References

[1]	T. Li, Y.F. Yin, X.H. Fang, and T.S. Qiu, Technological status of recovering copper, lead, zinc, sulfur from gold cyaniding tailings, Mod. Min.,(2011), No. 4, p. 28.
[2]	C.C. Lv, J. Ding, P. Qian, Q.C. Li, S.F. Ye, and Y.F. Chen, Comprehensive recovery of metals from cyanidation tailing, Miner. Eng., 70(2015), p. 141.
[3]	A.C. Lin, Balance research on harmful element in ironmaking process in Honghe steel, Yunnan Metall., 42(2013), No. 4, p. 39.
[4]	D.G. Tang, Research on pyrite cinder used in pellet production, China Resour. Compr. Util., 24(2006), No. 7, p. 5.
[5]	X.Q. Sun, Z.S. Yao, J. Jin, and Y. Wu, Experimental feasibility study on production of oxidized agglomerate by utilization of SA cinder, Phosphate Compd. Fert., 2005, No. 6, p. 13.
[6]	D.Q. Zhu, T.J. Chun, J. Pan, and Z.Q. Guo, Preparation of oxidised pellets using pyrite cinders as raw material, Ironmaking Steelmaking, 40(2013), No. 6, p. 430.
[7]	B.S. Hu and H. Wang, The transition of occurrence of copper, gold and silver in Tongling pyrite cinder during magnetic roasting and separation, Multipurpose Util. Miner. Resour., 2002, No. 2, p. 16.
[8]	Y.L. Li, W.S. Guan, X.D. Shi, Q. Wang, and S.Q. Li, Research advances in the reclamation of gold and silver from pyrite slag, Appl. Chem. Ind., 38(2009), No. 11, p. 1671.
[9]	J.T. Wei, B.K. Guo, G.Y. Yan, and X.J. Zhen, Study on recovering gold from pyrite cinder by superfine grinding-resin-in-pulp method, Gold, 23(2002), No. 4, p. 34.
[10]	D.M. Gao and C.L. Lv, Study on gold extraction from gold-bearing sulfuric-acid slag by the process of chlorine leaching, Gold Sci. Technol., 13(2005), No. 6, p. 17.
[11]	L.S. Strizhko, R.I. Normurotov and D.B. Kholikulov, Investigations into extracting gold from gold-containing magnesium fraction by chlorination, Russ. J. Non-Ferrous Met., 50(2009), No. 4, p. 348.
[12]	J.K.S. Tee and D.J. Fray, Separation of copper from steel, Ironmaking Steelmaking, 33(2006), No. 1, p. 19.
[13]	F. Santos, E. Brocchi, V. Araújo, and R. Souza, Behavior of Zn and Fe content in electric arc furnace dust as submitted to chlorination methods, Metall. Mater. Trans. B, 46(2015), No. 4, p. 1729.
[14]	J. Ding, J.W. Sun, P. Qian, Z.K. Pan, S.F. Ye, Q.C. Li, C.X. Wang, and Y.F. Chen, Experimental study on recovering valuable metals from pyrite cinder by chloridizing roast, Comput. Appl. Chem., 29(2012), No. 3, p. 255.
[15]	A. Landsberg and C.L. Hoatson, The kinetics and equilibria of the gold-chlorine system, J. Less Common Met., 22(1970), No. 3, p. 327.
[16]	P.G. Jiang, P.F. Wu, Z.B. Wang, Y.B. Yan, and Q.X. Jing, Research progress of chloridizing volatilization, Nonferrous Met. Sci. Eng., 7(2016), No. 6, p. 43.
[17]	T. Guo, X.J. Hu, H. Matsuura, F. Tsukihashi, and G.Z. Zhou, Kinetics of Zn removal from ZnO-Fe₂O₃-CaCl₂ system, ISIJ Int., 50(2010), No. 8, p. 1084.
[18]	T. Guo, X.J. Hu, X.M. Hou, H. Matsuura, F. Tsukihashi, and G.Z. Zhou, Chlorination reaction mechanism between ZnFe₂O₄ and CaCl₂, J. Univ. Sci. Technol. Beijing, 33(2011), No. 4, p. 474.
[19]	L.I. Barbosa, J.A. González, and M. del CarmenRuiz, Extraction of lithium from β-spodumene using chlorination roasting with calcium chloride, Thermochim. Acta, 605(2015), p. 63.
[20]	D.Q. Zhu, D. Chen, J. Pan, and G.L. Zheng, Chlorination behaviors of zinc phases by calcium chloride in high temperature oxidizing-chloridizing roasting, ISIJ Int., 51(2011), No. 11, p. 1773.
[21]	L. Jian, S.M. Wen, C. Yu, D. Liu, S.J. Bai, and D.D. Wu, Process optimization and reaction mechanism of removing copper from an Fe-rich pyrite cinder using chlorination roasting, J. Iron Steel Res. Int., 20(2013), No. 8, p. 20.
[22]	G.Y. Fu, J. Ding, L.Q. Wei, X.M. Zhang, Y. Liu, and S.F. Ye, Study on the corrosion and adhesion behavior of chloridizing metallurgy furnace, Gold Sci. Technol., 23(2015), No. 5, p. 99.
[23]	G. Fraissler, M. Jöller, T. Brunner, and I. Obernberger, Influence of dry and humid gaseous atmosphere on the thermal decomposition of calcium chloride and its impact on the remove of heavy metals by chlorination, Chem. Eng. Process., 48(2009), No. 1, p. 380.
[24]	X.L. Wang, Ferrous Metallurgy (Ironmaking Section), Metallurgical Industry Press, Beijing, 2013, p. 41.
[25]	T. Jiang, Production Manual of Sintering and Pelletizing, Metallurgical Industry Press, Beijing, 2014, p. 169.