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| Study on Removal of Arsenic in As-NaOH-ClO- System |
| Received:August 21, 2020 Revised:August 31, 2020 |
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| DOI：doi：10.3969/j.issn.1007-7545.2021.01.002 |
| KeyWord:As-NaOH-ClO- system; nickel dust; arsenic; oxidation alkaline leaching |
| Author | Institution |
| Su Jun-min |
镍钴资源综合利用国家重点实验室 甘肃 金昌 |
| Zhang Peng |
镍钴资源综合利用国家重点实验室 甘肃 金昌 |
| XU Wen-fang |
镍钴资源综合利用国家重点实验室 甘肃 金昌 |
| Zhao Xiu-li |
镍钴资源综合利用国家重点实验室 甘肃 金昌 |
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| Abstract: |
| A method to remove arsenic in As-NaOH-ClO- system was proposed. Arsenic removal effect was investigated with arsenic-bearing nickel dust as raw material. The results show that arsenic removal rate is 80.1% and nickel loss ratio is only 0.014% under the optimum conditions including L/S=10, NaClO concentration of 3%, NaOH concentration of 3%, reaction temperature of 50 ℃, and reaction time of 1 h. Harmless treatment of arsenic and recovery of nickel metal are realized. |
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