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| Industrial Test of Arsenic Removal and Comprehensive Recovery from high As, Sn and Pb bearing anode slime |
| Received:December 17, 2019 Revised:December 31, 2019 |
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| DOI： |
| KeyWord:As; Sn; Pb ; anode slime ; alkaline roasting; pilot test |
| Author | Institution |
| fanghongsheng |
Guangdong Polytechnic of Environmental Protection Engineering |
| lihuiying |
Guangdong Polytechnic of Environmental Protection Engineering |
| wangxiaoyng |
Guangdong Polytechnic of Environmental Protection Engineering |
| sunyanjun |
Zhaoqing Feinan Metal Co.，Ltd. |
| weixiaoling |
Baiyin Institute of Mining and Metallurgy |
| wangwenxiang |
Guangdong Polytechnic of Environmental Protection Engineering |
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| Abstract: |
| On the basis of the pilot and scale-up experiments of As removal and resource comprehensive recovery from high As, Sn and Pb bearing anode slime,a 3t/d pilot production line for comprehensive recovery of high As, Sn and Pb bearing anode slime was designed and constructed.The separation of As and Sn was achieved under the conditions of alkali ratio 0.8, roasting temperature 600℃, roasting time 2.2 h, liquid-solid ratio 3 (mL/g), leaching temperature 80℃ and leaching time 2 h. The leaching residue contains Sn, Pb and Sb, and the coarse arsenate product is obtained by evaporation crystallization of the leaching solution at 80 ℃. The results showed that the leaching residue contains 32.66% Sn, 12.65% Pb and 14.75% Sb. The purity of sodium arsenate reaches 57.3% and contains 12 crystalline water. The pilot test of comprehensive recovery of high As, Sn and Pb bearing anode slime has realized the separation and recovery of As and valuable metals in anode slime, which has important practical significance for environmental protection and comprehensive utilization of resources. |
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