铜冶炼烟灰碱浸渣氨浸工艺
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摘要
以铜冶炼烟灰碱浸渣为原料,研究氨-硫酸铵体系的pH值、总氨浓度、氨铵摩尔比、液固质量比、反应温度、反应时间等因素对铜冶炼烟灰碱浸渣中铜锌浸出的影响规律.结果表明,最佳工艺条件为:总氨浓度为5 mol/L、pH值为10、氨铵摩尔比为2∶1、液固质量比为5∶1,浸出温度为70℃,浸出时间为60 min.此条件下铜和锌浸出率分别为90.6%和92.4%.
Alkali leaching residue of copper converter flue dust as raw material, copper and zinc leaching influence of ammonia-ammonium sulphate system was investigated. The effects of pH, total ammonia concentration, NH_3/NH_4~+, ratio of solid to liquid, leaching temperature and time on the leaching law of alkali leaching residue of copper converter flue dust were studied. The results show that copper and zinc leaching rate are 90.6 % and 92.4 % under the optimum condition. Such as total ammonia concentration is 5 mol/L,pH is 10, NH_3/NH_4~+ is 2∶1,L/S is 5∶1, leaching temperature is 70 ℃,leaching time is 60 minute.
Alkali leaching residue of copper converter flue dust as raw material, copper and zinc leaching influence of ammonia-ammonium sulphate system was investigated. The effects of pH, total ammonia concentration, NH_3/NH_4~+, ratio of solid to liquid, leaching temperature and time on the leaching law of alkali leaching residue of copper converter flue dust were studied. The results show that copper and zinc leaching rate are 90.6 % and 92.4 % under the optimum condition. Such as total ammonia concentration is 5 mol/L,pH is 10, NH_3/NH_4~+ is 2∶1,L/S is 5∶1, leaching temperature is 70 ℃,leaching time is 60 minute.
引文
[1]侯新刚,张琰,张霞.从铜转炉烟灰中浸出铜、锌试验研究[J].湿法冶金,2011,1(3):57-59.
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[12]Xu Z,Li Q,Nie H.Pressure leaching technique of smelter dust with high-copper and high-arsenic[J].Transactions of Nonferrous Metals Society of China,2010,20(1):176-181.
[13]赵玉娜,朱国才.白烟灰浸出液砷与锌的分离与回收[J].矿冶,2006,15(4):84-87.
[14]邢鹏,王成彦,尹飞,等.高砷锌烟灰脱砷研究[J].矿冶,2014,23(3):54-56.
[15]郑军福,孙留根,于英东,等.镍冶炼转炉烟灰碱浸脱砷试验研究[J].中国资源综合利用(实验研究),2014,32(4):21-23.
[16]吴玉林,徐志峰,郝士涛.炼铜烟灰碱浸脱砷的热力学及动力学[J].有色金属(冶炼部分),2013(4):3-7.
[17]杨声海,唐谟堂,邓昌雄,等.由氧化铜转炉烟灰氨法制取高纯锌[J].中国有色金属学报,2001,11(6):1110-1113.
[18]张恩玉,鲁兴武,贡大雷,等.利用碳酸铵溶液处理铜烟灰的研究[J].矿冶工程,2013,33(6):68-70.
[19]李洪桂.湿法冶金学[M].长沙:中南大学出版社,2005(2):164-168.
[20]陈启元,王树宾,胡慧萍,等.氨-碳铵法浸出含锌烟灰[J].有色金属(冶炼部分),2012(6):7-10.
[2]姜柏秋,张均杰.从铜冶炼电收尘烟灰中综合回收有价金属的实践[J].有色冶金节能(环保与综合利用),2012,12(6):45-47.
[3]吴军,宋祥莉,姜国敏.铜闪速炉烟灰硫酸化焙烧后焙砂浸出试验研究[J].有色金属(冶炼部分),2012(5):5-7.
[4]梁勇,李亮星,廖春发,等.铜闪速炉烟灰焙烧脱砷研究[J].有色金属(冶炼部分),2011(1):9-11.
[5]Liu Q,Yang S H,Chen Y M,et al.Selective recovery of lead from zinc oxide dust with alkaline Na[J].Transactions of Nonferrous Metals Society of China,2014(24):1179-1186.
[6]张晓峰,曹佐英,肖连生,等.焙烧对高砷白烟灰中铜浸出率的影响及其热力学分析[J].矿冶工程,2012,32(5):86-89.
[7]廖贻鹏,林文军,刘一宁.从进口、转炉氧化锌及铜烟灰中回收锌的试验研究[J].湖南有色金属,2008,24(6):13-15.
[8]唐谟堂,李鹏,何静,等.CR法处理铜转炉烟灰制取砷酸铜[J].中国有色冶金,2009,12(6):55-59.
[9]梁德华,王成彦,张永禄,等.锌烟灰浸出液中铟和锗的提取[J].矿冶,2014,23(4):76-78.
[10]杨永强,王成彦,杨玮娇,等.锌烟灰焙砂浸出铟、锗、锌的研究[J].有色金属(冶炼部分),2014(7):11-13.
[11]Kasikova A G,Areshinaa N S,Mal’ts I E.Hydrometallurgical processing of the fine dusts of copper production of OAO Kol’skaya GMK[J].Theoretical Foundations of Chemical Engineering,2010,44(5):811-817.
[12]Xu Z,Li Q,Nie H.Pressure leaching technique of smelter dust with high-copper and high-arsenic[J].Transactions of Nonferrous Metals Society of China,2010,20(1):176-181.
[13]赵玉娜,朱国才.白烟灰浸出液砷与锌的分离与回收[J].矿冶,2006,15(4):84-87.
[14]邢鹏,王成彦,尹飞,等.高砷锌烟灰脱砷研究[J].矿冶,2014,23(3):54-56.
[15]郑军福,孙留根,于英东,等.镍冶炼转炉烟灰碱浸脱砷试验研究[J].中国资源综合利用(实验研究),2014,32(4):21-23.
[16]吴玉林,徐志峰,郝士涛.炼铜烟灰碱浸脱砷的热力学及动力学[J].有色金属(冶炼部分),2013(4):3-7.
[17]杨声海,唐谟堂,邓昌雄,等.由氧化铜转炉烟灰氨法制取高纯锌[J].中国有色金属学报,2001,11(6):1110-1113.
[18]张恩玉,鲁兴武,贡大雷,等.利用碳酸铵溶液处理铜烟灰的研究[J].矿冶工程,2013,33(6):68-70.
[19]李洪桂.湿法冶金学[M].长沙:中南大学出版社,2005(2):164-168.
[20]陈启元,王树宾,胡慧萍,等.氨-碳铵法浸出含锌烟灰[J].有色金属(冶炼部分),2012(6):7-10.