真空冶金法处理脆硫铅锑矿铅、锑、铁挥发控制条件的实验研究
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摘要
简单分析了"烧结-鼓风炉熔炼-吹炼法"处理脆硫铅锑矿存在的问题,并对真空冶金法处理脆硫铅锑精矿铅、锑、铁挥发控制条件进行了实验研究,研究结果表明:在蒸馏温度为1523 K、蒸馏时间为60 min的条件下,脆硫铅锑精矿的挥发百分含量约为77%;精矿中铅、锑的挥发百分含量在99%以上;精矿中铁基本不挥发,富集于残留物中;残留物主要物相为FeS。
Here,we experimentally addressed the extraction of Pb and Sb from jamesoniteconcentrate by vacuum distillation.The influence of the distillation conditions,including but not limited to the distillation temperature,distillation time and pressure,on the removal of Pb and Sb was investigated with X-ray diffraction,titrametric analysis and atomic absorption spectrometry(AAS).The preliminary results show that depending strongly on the distillation temperature and time,vacuum distillation is capable of removing most Pb and Sb from jamesonite in a simple and environmental friendly way.To be specific,distilled at 1523 K for 60 min.over 99%of both Pb and Sb were removed from the jamesonite,and most Fe stayed in the slag,existing in FeS-phase,because of poor volatilization of Fe.
Here,we experimentally addressed the extraction of Pb and Sb from jamesoniteconcentrate by vacuum distillation.The influence of the distillation conditions,including but not limited to the distillation temperature,distillation time and pressure,on the removal of Pb and Sb was investigated with X-ray diffraction,titrametric analysis and atomic absorption spectrometry(AAS).The preliminary results show that depending strongly on the distillation temperature and time,vacuum distillation is capable of removing most Pb and Sb from jamesonite in a simple and environmental friendly way.To be specific,distilled at 1523 K for 60 min.over 99%of both Pb and Sb were removed from the jamesonite,and most Fe stayed in the slag,existing in FeS-phase,because of poor volatilization of Fe.
引文
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[3]雷霆,朱从杰,张汗平.锑冶金[M].北京:冶金工业出版社,2009:8-10
[4]何启贤,陆玺争.铅锑冶金生产技术[M].北京:冶金工业出版社,2005
[5]冉俊铭,黄世弘,易健宏,等.脆硫铅锑矿冶炼工艺现状及展望[J].湖南有色金属,2008,24(2):35-38
[6]谢兆凤,杨天足,刘伟峰,等.脆硫铅锑矿无污染冶炼工艺研究[J].矿冶工程,2009,29(4):80-84
[7]韦万新.脆硫铅锑矿火法流程生产高铅锑合金的实践[J].有色冶炼,1992,21(2):42
[8]安建刚.脆硫铅锑矿综合回收铜铋实践[J].有色金属(冶炼部分),2005,(5):26-28
[9]邓崇进,安剑刚,陈家荣.脆硫铅锑矿火法冶炼工艺进展[C].第八届全国锡锑冶炼及加工生产技术交流会,中国:北京,2006:103-112