云南某硫精矿提硫除砷试验研究及应用
|
摘要
对云南某硫精矿进行了提硫除砷试验研究。采用磁选工艺,分别研究了高梯度磁选给矿量、磁场强度、冲次等因素对提硫除砷效果的影响。结果表明,在粗选磁场强度1.1 T、精选磁场强度0.9 T条件下,获得的硫精矿硫品位27.65%、含砷0.38%,硫回收率81.62%、除砷率90%以上,基本达到硫精矿制酸要求。
Experimental study was conducted to improve sulfur grade of a sulfur concentrate from a plant in Yunnan Province by removing arsenic. High gradient magnetic separation was introduced, and influences of operation parameters, such as feed rate, magnetic intensity and pulsating stroke frequency, on processing effect were investigated. The results showed that, with the magnetic field strength for roughing at 1.1 T, and for cleaning at 0.9 T, sulfur grade and recovery for the sulfur concentrate attained 27.65% and 81.62%, respectively, while the arsenic content therein were reduced to 0.38%, and over 90% of arsenic were removed. The obtained sulfur concentrate basically met the requirement for acid manufacturing.
Experimental study was conducted to improve sulfur grade of a sulfur concentrate from a plant in Yunnan Province by removing arsenic. High gradient magnetic separation was introduced, and influences of operation parameters, such as feed rate, magnetic intensity and pulsating stroke frequency, on processing effect were investigated. The results showed that, with the magnetic field strength for roughing at 1.1 T, and for cleaning at 0.9 T, sulfur grade and recovery for the sulfur concentrate attained 27.65% and 81.62%, respectively, while the arsenic content therein were reduced to 0.38%, and over 90% of arsenic were removed. The obtained sulfur concentrate basically met the requirement for acid manufacturing.
引文
[1] 刘四清,张文彬.高砷硫精矿除砷的研究[J].矿产保护与应用,2005(6):28-31.
[2] 董风芝,王苹.某硫铁矿烧渣选铁除砷工艺研究[J].金属矿山,2012(2):159-161.
[3] 陈红兵,陈绍伟,李燕华,等.高砷硫精矿综合回收利用研究[J].云南化工,2015(3):28-30.
[4] 潘基泽.综合回收高砷硫精矿的试验研究[J].有色金属,2000(4):222-223.
[5] 叶小璐,袁经中.某高砷硫精矿砷硫分离技术研究[J].矿冶工程,2017,37(3):68-71.
[6] 熊大和,刘树贻,刘永之,等.脉动高梯度磁选中冲程冲次对选矿指标的影响[J].中南矿冶学院学报,1989(5):497-504.
[7] 熊大和,刘建平.SLon脉动与振动高梯度磁选机新进展[J].金属矿山,2006(7):4-7.
[2] 董风芝,王苹.某硫铁矿烧渣选铁除砷工艺研究[J].金属矿山,2012(2):159-161.
[3] 陈红兵,陈绍伟,李燕华,等.高砷硫精矿综合回收利用研究[J].云南化工,2015(3):28-30.
[4] 潘基泽.综合回收高砷硫精矿的试验研究[J].有色金属,2000(4):222-223.
[5] 叶小璐,袁经中.某高砷硫精矿砷硫分离技术研究[J].矿冶工程,2017,37(3):68-71.
[6] 熊大和,刘树贻,刘永之,等.脉动高梯度磁选中冲程冲次对选矿指标的影响[J].中南矿冶学院学报,1989(5):497-504.
[7] 熊大和,刘建平.SLon脉动与振动高梯度磁选机新进展[J].金属矿山,2006(7):4-7.