自制无定型硫化锰除氯化铜锰液中的重金属研究
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摘要
针对目前重金属废水处理中药剂成本高,分类回收效果差等问题,利用氯化锰和硫化钠自制无定型硫化锰对氯化铜锰液中的重金属进行去除。结果表明在80℃条件下反应2. 0 h,且自制硫化锰投加量为理论2. 3倍时,溶液中铜、钴、锌的沉淀率均可大于99. 5%,取得了很好的去除效果。
Because of the cost of treating heavy metal wastewater was really high and the classification and recovery of the products were poor efficiently,thus this paper provide a new method that using manganese chloride and sodium sulfide to make amorphous manganese sulfide to remove heavy metals from solution of copper chloride. The results showed that the removal efficiency of copper,cobalt and zinc in the solution was more than 99. 5% when the temperature was 80 ℃,the time was 2. 0 h and the amorphous manganese sulfide was 2. 3 times compared with the theoretical value.
Because of the cost of treating heavy metal wastewater was really high and the classification and recovery of the products were poor efficiently,thus this paper provide a new method that using manganese chloride and sodium sulfide to make amorphous manganese sulfide to remove heavy metals from solution of copper chloride. The results showed that the removal efficiency of copper,cobalt and zinc in the solution was more than 99. 5% when the temperature was 80 ℃,the time was 2. 0 h and the amorphous manganese sulfide was 2. 3 times compared with the theoretical value.
引文
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[11]刘伟锋,刘亮强,孙百奇,等.一种控电位选择性沉淀分离钴的方法[P].中国专利:CN106350673A,2017-01-25.
[2]王瑞永,罗婷. TBP-N_(235)同萃取铜电解液中的砷[J].矿冶工程,2015,(6):89-92.
[3]赵中伟,黄少波,霍广生,等.复杂镍浸出液萃取净化的研究[J].有色金属(冶炼部分),2010,(1):5-8.
[4]冯茹,童张法,郑帅飞,等.氯化铵焙烧菱锰矿制备高纯碳酸锰的工艺研究[J].无机盐工业,2011,43(8):33.
[5] Zhou K,Pan L,Peng C,et al. Selective precipitation of Cu in manganese-copper chloride leaching liquor[J]. Hydrometallurgy,2018,175:319-325.
[6]张莹,张廷安.溶剂萃取法从含钒浸出液中提钒的研究进展[J].有色金属科学与工程,2017,(5):14-20.
[7]张文山,梅光贵,周元敏,等.电解金属锰硫化除重金属的理论分析与生产实践[J].中国锰业,2004,22(3):8-10.
[8] Morse J W,Arakaki T. Adsorption and coprecipitation of divalent metals with mackinawite(Fe S)[J]. Geochimica Et Cosmochimica Acta,1993,57(15):3 635-3 640.
[9] Salmi T,Russo V,Carletti C,et al. Application of film theory on the reactions of solid particles with liquids:shrinking particles with changing liquid films[J]. Chemical Engineering Science,2017,160:161-170.
[10] Salmi T,Grénman H,Bernas H,et al. Mechanistic modelling of kinetics and mass transfer for a solid-liquid system:Leaching of zinc with ferric iron[J]. Chemical Engineering Science,2010,65(15):4 460-4 471.
[11]刘伟锋,刘亮强,孙百奇,等.一种控电位选择性沉淀分离钴的方法[P].中国专利:CN106350673A,2017-01-25.