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| Study on Arsenic Removal with Oxidative Acid Leaching and Stabilization of Arsenic-bearing Material |
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Received:March 02, 2019
Revised:March 05, 2019
Accepted:March 07, 2019
Published Online:June 17, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.07.002 |
| KeyWord:high-arsenic content metallurgical wastes; oxidative acid leaching; ferric arsenate; stabilization |
| Author | Institution |
| FANG Xiong |
中南大学化学化工学院 |
| TANG XinCun |
中南大学化学化工学院 |
| WANG Yang |
中南大学化学化工学院 |
| HUANG Jie |
中南大学化学化工学院 |
| CHEN Xi |
中南大学化学化工学院 |
| RONG ZhiHao |
中南大学化学化工学院 |
| WU LiPing |
中南大学化学化工学院 |
| HUANG LiuChun |
中南大学化学化工学院 |
| LI Xin |
中南大学化学化工学院 |
| DANG Wei |
中南大学化学化工学院 |
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| Abstract: |
| Oxidative acid leaching technology was applied to treat high-arsenic content metallurgical wastes. The results show that arsenic in solid residues falls to 1% or less under the conditions including sulfuric acid concentration of 1 mol/L, L/S=4/1, 20 ℃, and reaction time of 4 h. The filtrate with high-arsenic is pretreated by reduced iron powder before ferric arsenate with good crystal shape is synthesized by oxidation of ferrous sulfate solution. The arsenic-containing material meets SPLP leaching toxicity test and can be disposed safely. |
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