A process was proposed to convert and separate selenium and arsenic in copper anode slime (CAS) by low-temperature alkali fusion process. Central composite design was employed to optimize the effective parameters, in which NaOH/CAS mass ratio, fusion temperature and fusion time were selected as variables, and the conversion ratio of selenium and arsenic as responses. Second-order polynomial models of high significance and 3D response surface plots were constructed to show the relationship between the responses and the variables. Optimum area of >90% selenium conversion ratio and >90% arsenic conversion ratio was obtained by the overlaid contours at NaOH/CAS mass ratio of 0.65-0.75, fusion temperature of 803-823 K and fusion time of 20-30 min. The models are validated by experiments in the optimum area, and the results demonstrate that these models are reliable and accurate in predicting the fusion process.
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HUANG Wang-yin, SU Qing-ping. The situation and development of copper hydrometallurgy [J]. Anhui Chemical, 2011, 37(2): 13–14. (in Chinese)
CHEN Guo-bao, YANG Hong-ying, GUO Jun, LI Xue-jiao. The rougher flotation process of copper anode slime for collecting gold and silver [J]. Precious Metals, 2013, 34(3): 32–33. (in Chinese)
LI Xue-jiao, YANG Hong-ying, TONG Lin-lin, CHEN Guo-bao. Technological mineralogy of copper anode slime [J]. Journal of Northeastern University(Natural Science), 2013, 34(4): 560–561. (in Chinese)
LIU Wei-feng. Study on copper/lead anode slimes treated by alkaline oxidative leaching [D]. Changsha: Central South University, 2011: 120–128. (in Chinese)
GUO Xue-yi, XIAO Cai-mei, ZHONG Ju-ya, TIAN Qing-hua. Behaviors of precious metals in process of copper anode slime treatment [J]. The Chinese Journal of Nonferrous Metals, 2010, 20(5): 990–998. (in Chinese)
COOPER W C. The treatment of copper refinery anode slimes [J]. JOM, 1990, 42(8): 45–49.
YASIN K, GULDEM K, SERVET T. An investigation of copper and selenium recovery from copper anode slimes [J]. International Journal of Mineral Processing, 2013, 124: 75–82.
HOFFMANN J E. Recovering selenium and tellurium from copper refinery slimes [J]. Journal of the Minerals Metals Materials Society, 1989, 41(7): 33–38.
SYED S. Recovery of gold from secondary sources—A review [J]. Hydrometallurgy, 2012, 115: 30–51.
LI Dong, GUO Xue-yi, XU Zhi-peng, TIAN Qing-hua, FENG Qi-ming. Leaching behavior of metals from copper anode slime using an alkali fusion-leaching process [J]. Hydrometallurgy, 2015, 157: 9–12.
LIU Wei-feng, YANG Tian-zu, ZHANG Du-chao, CHEN Lin, LIU You-nian. Pretreatment of copper anode slime with alkaline pressure oxidative leaching [J]. International Journal of Mineral Processing, 2014, 128: 48–54.
LU Dian-kun, CHANG Yong-feng, YANG Hong-ying, XIE Feng. Sequential removal of selenium and tellurium from copper anode slime with high nickel content [J]. Transactions of Nonferrous Metals Society of China, 2015, 25(4): 1307–1314.
TANG Mo-tang, TANG Chao-bo, CHEN Yong-ming, YANG Jian-guang, YANG Sheng-hai, HE Jing, OU Zhao. A promising low carbon clean metallurgical method: low-temperature molten salt metallurgy of heavy metal [J]. China Nonferrous Metallurgy, 2010, (4): 49–53. (in Chinese)
HU Yu-jie, TANG Chao-bo, TANG Mo-tang, YANG Jian-guang, CHEN Yong-ming, YANG Sheng-hai, HE Jing. A clean and green process of low-temperature for smelting of secondary lead [J]. Nonferrous Metals(Extractive Metallurgy) 2013(8): 1–4. (in Chinese)
GUO Xue-yi, LIU Jing-xin, TIAN Qing-hua. Elemental behavior of multi-component metal powders from waste printed circuit board during low-temperature alkaline smelting [J]. The Chinese Journal of Nonferrous Metals, 2013, 23(6): 1757–1763. (in Chinese)
LIU Jing-xin, GUO Xue-yi, TIAN Qing-hua, LI Dong. Separation and extraction of amphoteric metals from waste printed circuit board powders by low-temperature alkaline smelting [J]. Journal of University of Science and Technology Beijing, 2014, 36(7): 875–879. (in Chinese)
PODSTAWCZYK D, WITEK-KROWIAK A, DAWIEC A, BHATNAGAR A. Biosorption of copper (II) ions by flax meal: Empirical modeling and process optimization by response surface methodology (RSM) and artificial neural network (ANN) simulation [J]. Ecological Engineering, 2015, 83: 364–379.
AKALIN M K, TEKIN K, AKYUZ M, KARAGOZ S. Sage oil extraction and optimization by response surface methodology [J]. Industrial Crops and Products, 2015, 76: 829–835.
BOX G E P, WILSON K B. On the experimental attainment of optimum conditions [J]. Journal of the Royal Statistical Society, Series B (Methodological), 1951, 13(1): 1–45.
BOX G E P, HUNTER J S. Multi-factor experimental designs for exploring response surfaces [J]. The Annals of Mathematical Statistics, 1957, 28(1): 195–241.
KHURI A I, MUKHOPADHYAY S. Response surface methodology [J]. Wiley Interdisciplinary Reviews: Computational Statistics, 2010, 2(2): 128–149.
ZHANG Xian, WANG Ri-jie, YANG Xiao-xia, YU Jin-gang. Central composite experimental design applied to the catalytic aromatization of isophorone to 3, 5-xylenol [J]. Chemometrics and Intelligent Laboratory Systems, 2007, 89(1): 45–47.
LIN Y C, TSAO C C, HSU C Y, HUNG S K, WEN D C. Evaluation of the characteristics of the microelectrical discharge machining process using response surface methodology based on the central composite design [J]. The International Journal of Advanced Manufacturing Technology, 2012, 62(9-12): 1013–1014.
OBENG D P, MORREL S, NAPIER-MUNN T J. Application of central composite rotatable design to modelling the effect of some operating variables on the performance of the three-product cyclone [J]. International Journal of Mineral Processing, 2005, 76(3): 181–192.
Foundation item: Project(51234009) supported by the National Natural Science Foundation of China; Project(2014DFA90520) supported by International Cooperation Program of Ministry of Science of China; Project(2013A100003) supported by the Production, Teaching and Research Program of Guangdong Province, China
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Guo, X., Xu, Z., Tian, Q. et al. Optimization on selenium and arsenic conversion from copper anode slime by low-temperature alkali fusion process. J. Cent. South Univ. 24, 1537–1543 (2017). https://doi.org/10.1007/s11771-017-3558-x
- low-temperature alkali fusion
- copper anode slime
- central composite design