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投稿时间:2020-01-05 修订日期:2020-01-05 录用日期:2020-01-13 网络发布日期:2020-08-17
投稿时间:2020-01-05 修订日期:2020-01-05 录用日期:2020-01-13 网络发布日期:2020-08-17
中文摘要: 采用氧气为氧化剂,氢氧化钠为浸出剂,在加压条件下从高砷锑烟灰中分离砷。研究了碱性氧压体系下氢氧化钠加入量、浸出温度、液固比、氧分压、反应时间、搅拌速率对砷锑浸出率的影响,并得到了较优工艺条件。在NaOH加入量为理论量1.3倍、浸出温度130 ℃、液固比4、氧分压为0.7 MPa,反应时间2 h,搅拌速率600 r/min的优化条件下,As、Sb浸出率分别为93.54%,0.73%。
Abstract:Arsenic was leached from high As-Sb-bearing dust by oxidative pressure leaching with O2 as oxidant and sodium hydroxide as leaching agent. Effects of NaOH dosage, reaction temperature, O2 pressure, L/S, reaction time, and stirring speed on leaching rate of As and Sb were investigated. The results show that leaching rate of As and Sb is 93.54% and 0.73% respectively under the optimum conditions including NaOH dosage of 1.3 times of the theoretical amount, reaction temperature of 130 ℃, O2 pressure of 0.7 MPa, L/S of 4, reaction time of 120 min, and stirring speed of 600 r/min.
文章编号: 中图分类号: 文献标志码:
基金项目:国家重点研发计划项目(2018YFC1900306)
| 作者 | 单位 | |
| 董准勤* | 山东恒邦冶炼股份有限公司 | kmustlzg@163.com |
| Author Name | Affiliation | |
| DONG Zhun-qin | Shandong Humon Smelting Co.,Ltd | kmustlzg@163.com |
引用文本:
董准勤.碱性氧压体系下高砷锑烟灰分离砷的工艺研究[J].有色金属(冶炼部分),2020(9):110-114.
DONG Zhun-qin.Study on Oxidative Pressure Leaching of Arsenic from High As-Sb-bearing Dust with Sodium Hydroxide Solution[J].Nonferrous Metals (Extractive Metallurgy),2020(9):110-114.
董准勤.碱性氧压体系下高砷锑烟灰分离砷的工艺研究[J].有色金属(冶炼部分),2020(9):110-114.
DONG Zhun-qin.Study on Oxidative Pressure Leaching of Arsenic from High As-Sb-bearing Dust with Sodium Hydroxide Solution[J].Nonferrous Metals (Extractive Metallurgy),2020(9):110-114.

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