从废水处理渣中选择性浸出钴铜研究On the selective leaching process of cobalt and copper from sewage sludge by ammonia
楚广,陈小红,杨天足
摘要(Abstract)：
用氨水和硫酸铵浸出废水处理渣中的钴铜,考察了浸出时间、反应温度、液固比、硝酸铵加入量和氨水浓度对钴铜浸出率的影响。结果表明,含钴铜废水处理渣的最佳浸出条件为:浸出时间5 h,浸出温度50℃,氨水浓度3 mol/L,硫酸铵浓度1 mol/L,液固比8∶1。在此条件下钴和铜的浸出率分别为70%~80%和60%~70%。
关键词(KeyWords)： 环境工程学;废水处理渣;钴;铜;氨-硫酸铵;氨浸
基金项目(Foundation):
作者(Author): 楚广,陈小红,杨天足
参考文献(References)：
- [1]DAI Jierui(代杰瑞),HU Xueping(胡雪平),WANG Zenghui(王增辉),et al.Characteristics of heavy metals pollution in soil and potential ecological risk assessment—a case study of Blue Economic Zone of Shandong Peninsula[J].Journal of Safety and Environment(安全与环境学报),2013,13(1):134-137.
- [2]LUAN Guangying(栾广英),GUAN Xiaoyu(关晓宇).Extraction of cobalt oxide from cobalt slag process improvements[J].Nonferrous Metals:Smelting Part(有色金属:冶炼部分),1993,23(3):15-16.
- [3]WANG Pengwei(王鹏伟),CHEN Feng(陈枫),HUANG Zhenhua(黄振华),et al.Selective acid-dissolution of cobalt residue and suppression of Cu-Fe[J].Non-Ferrous Mining and Metallurgy(有色矿冶),1998,7(1):38-42.
- [4]WANG Kaiyi(王开毅),CAI Chunlin(蔡春林),QIAN Dong(钱东),et al.Studies on process for ammonia leaching of cobalt dregs[J].Chinese Journal of Rare Metals(稀有金属),2001,25(4):312-314.
- [5]YAN Wei(烟伟).Leaching of compound copper ore with NH3·H2O at normal atmosphere and high O2pressure[J].Hydrometallurgy of China(湿法冶金),2001,20(2):76-78.
- [6]LIU Guoyong(刘国永),TAN Dingsheng(谈定生),L¨U Chaojun(吕超君),et al.Dissolution behavior of copper in cupric ammine solutions[J].Shanghai Nonferrous Metals(上海有色金属),2010,31(1):1-4.
- [7]LIU Zhixiong(刘志雄),YIN Zhoulan(尹周澜),HU Huiping(胡慧萍),et al.Oxidative leaching of low-grade copper ore in ammonia-ammonium sulfate solution with ammonium persulfate[J].The Chinese Journal of Nonferrous Metals(中国有色金属学报),2012,22(5):1488-1496.
- [8]LI Honggui(李洪桂).Theoretical basis and practice of the Leaching process[J].Rare Metals and Cemented Carbides(稀有金属与硬质合金),1991,19(3):32-36.
- [9]PARK K H,MOHAPATRA D,REDDY B R,et al.A study on the oxidative ammonia/ammonium sulfate leaching of a complex(Cu-Ni-CoFe)matte[J].Hydrometallurgy,2007,86:164-171.
- [10]YANG Xinsheng(杨新生).A brief analysis of ammonia leaching process[J].Non-Ferrous Mining and Metallurgy(有色矿冶),1993,22(1):34-38.
- [11]MUKHERJEE M,RAICHUR A M,MODAK J M,et al.Dissolution of Cu,Co and Ni from ocean nodules by L-ascorbic acid[J].Chemical Engineering and Processing,2005,44:754-759.
- [12]PARK K H,MOHAPATRA D,REDDY B R.A study on the acidified ferric chloride leaching of a complex(Cu-Ni-Co-Fe)matte[J].Separation and Purification Technology,2006,51:332-337.
- [13]Leaching Technology Editorial Board(浸矿技术编委会).Leaching technology(浸矿技术)[M].Beijing:Atomic Energy Press,1994:147-148.
- [14]ACHARYA S,DAS R P.Kinetics and mechanism of the reductive ammonia leaching of ocean nodules by manganous ion[J].Hydrometallurgy,1987,19:169-186.
- [15]DAS R P,ANAND S,DAS S C,et al.Leaching of manganese nodules in ammoniacal medium using glucose as reductant[J].Hydrometallurgy,1986,16:335-344.
- [16]LI Honggui(李洪桂).Hydrometallurgy(湿法冶金学)[M].Changsha:Central South University Press,1998:47-169.