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锑电积贫液中锑回收试验研究
- 作者：
- 赵娜|臧文优|栾东武|孙美芬|王杰
- 作者单位：
- 山东国环固废创新科技中心有限公司|山东国环固废创新科技中心有限公司|山东国环固废创新科技中心有限公司|山东国环固废创新科技中心有限公司|山东国环固废创新科技中心有限公司
基金项目：
- isnull
详细信息：
- 作者简介：
- 赵娜（1988—），女，工程师，从事矿石选冶工作；E-mail:yejinsuozhaona@163.com
- 通讯作者：
- isnull
- PDF下载
Experimental study on antimony recovery from antimony electrolytic deposition lean solution
- English Author：
- Shandong Guohuan Solid Waste Innovative Technology Center Co.,Ltd.|Shandong Guohuan Solid Waste Innovative Technology Center Co.,Ltd.|Shandong Guohuan Solid Waste Innovative Technology Center Co.,Ltd.|Shandong Guohuan Solid Waste Innovative Technology Center Co.,Ltd.|Shandong Guohuan Solid Waste Innovative Technology Center Co.,Ltd.
- Unit：
- 摘要
- 在线预览
- 参考文献
摘要:
针对甘肃某公司锑电积贫液含锑较高，酸化沉锑渣锑品位高导致其与低品位矿配矿后碱浸锑回收率低的问题，开展了酸化沉锑—冷却结晶—碱浸—电积试验研究。通过单因素试验考察了pH、反应温度、搅拌速度和冷却结晶等对酸化沉锑效果的影响，结果表明：在酸化沉锑pH=5，冷却结晶温度10 ℃，碱浸矿浆浓度20 %、Na2S质量浓度85 g/L、NaOH质量浓度40 g/L、碱浸时间1 h、电积NaOH质量浓度70 g/L、电流4.80 A、阴极与阳极面积比为5.8∶1、电积时间50 h的条件下，电积试验锑回收率为82.29 %，阴极锑品位为92.72 %，提高了资源利用率。
关键词:
电积贫液；锑；酸化沉淀；碱浸；湿法炼锑
Abstract:
In response to the high content of antimony in the lean solution of antimony electrolytic deposition and the high grade of antimony in the agitation rate antimony residue from acidification and precipitation,which leads to low antimony recovery in alkaline leaching after blending with low-grade ore,experiments were conducted on acidification and precipitation of antimony cooling crystallization-alkaline leaching-electrolytic deposition process.Through single-factor acidification and precipitation experiments,the effects of pH,reaction temperature,agitation rate,and cooling crystallization on the effect of acidification and precipitation of antimony were investigated.The results show that under the conditions of pH 5 for acidification and precipitation of antimony,a cooling crystallization temperature of 10 ℃,a slurry concentration of 20 % for alkaline leaching,Na2S concentration of 85 g/L,NaOH concentration of 40 g/L,alkaline leaching time of 1 h,NaOH concentration of 70 g/L in the electrolytic deposition solution,current of 4.80 A,cathode area to anode area ratio of 5.8∶1,and electrolytic deposition time of 50 h,the antimony recovery rate in the electrolytic deposition experiment reached 82.29 %,with an antimony grade on the cathode of 92.72 %,thus enhancing resource utilization.
Keywords:
electrolytic deposition lean solution;antimony;acidification and precipitation;alkaline leaching;wet antimony refining
