含铅多金属物料电积提铅的研究
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摘要
介绍了一种含铅多金属物料电积提铅的工艺,用湿法处理含铅多金属物料。通过硫酸高压脱锌脱铜,并使部分铅转换为硫酸铅,后经碳酸化处理脱硫,硅氟酸浸出制得硅氟酸铅电解液,通过试验确定最优硫酸浓度、碳酸钠用量、硅氟酸浓度。电积提铅阶段,通过考察添加剂的用量、电解液浓度、极间距、电流电压等因数的影响,获得较佳的铅电沉积工艺。
A process of lead extraction by electrodeposition from lead-bearing polymetallic materials is introduced in this paper,the lead bearing polymetallic material is treated by wet process. The partial lead shall be changed into lead sulfate through zinc and copper removal of sulfuric acid with high pressure,and then sulfur is removed through carbonation,the fluosilicic acid lead electrolyte is prepared by leaching of fluosilicic acid,so the optimal sulfuric acid concentration,sodium carbonate dosage,silicofluoric acid concentration can be confirmed through the test. On the stage of lead extraction by electrodeposition,the better lead electrodeposition process can be obtained through the investigation of addition agent dosage,electrolyte concentration,electrode spacing,current,voltage,and the other factors.
A process of lead extraction by electrodeposition from lead-bearing polymetallic materials is introduced in this paper,the lead bearing polymetallic material is treated by wet process. The partial lead shall be changed into lead sulfate through zinc and copper removal of sulfuric acid with high pressure,and then sulfur is removed through carbonation,the fluosilicic acid lead electrolyte is prepared by leaching of fluosilicic acid,so the optimal sulfuric acid concentration,sodium carbonate dosage,silicofluoric acid concentration can be confirmed through the test. On the stage of lead extraction by electrodeposition,the better lead electrodeposition process can be obtained through the investigation of addition agent dosage,electrolyte concentration,electrode spacing,current,voltage,and the other factors.
引文
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[14]林星杰.铅冶炼行业重金属污染现状及防治对策[J].有色金属工程,2011(6):23-27.
[2]马兰,毛建素.中国铅流改变原因分析[J].环境科学,2014(8):3219-3224.
[3]张乐如.现代铅锌冶炼技术的应用与特点[J].世界有色金属,2007(4):20-22.
[4]兰兴华,殷建华.发展中的中国再生铅工业[J].中国资源综合利用,2000(8):19-21.
[5]何蔼平,郭森魁,郭迅.再生铅生产[J].上海有色金属,2003(1):39-42.
[6]周永鸣.鼓风炉炼铅与环境保护[J].云南冶金,2002(1):23-25.
[7]贺菊香,王兴,刘生长,甘红祥.液态高铅渣直接还原工艺的发展前景[J].湖南有色金属,2013(6):35-37+64.
[8]荆旭冬,周蓉.基夫赛特直接炼铅技术在国内首次应用实践[J].铜业工程,2015(4):58-61.
[9]胡立琼,李栋.氧气底吹熔炼炉的研发与应用[J].有色设备,2011(1):34-37+53.
[10]刘军,刘燕庭.富氧侧吹直接炼铅工艺研究与应用[J].中国有色冶金,2013,42(1):34-36.
[11]陈会成.液态高铅渣直接还原新工艺的研发及生产[J].世界有色金属,2010(8):46-48.
[12]郭明.氧气底吹炼铅先进工艺的节能减排效果与分析[J].有色冶金节能,2008(5):15-19.
[13]李卫锋,张晓国,郭学益,等.我国铅冶炼的技术现状及进展[J].中国有色冶金,2010(2):29-33.
[14]林星杰.铅冶炼行业重金属污染现状及防治对策[J].有色金属工程,2011(6):23-27.