废旧锂离子电池正极材料中有价金属的浸出回收工艺
|
摘要
采用SO_2还原浸出工艺回收废旧锂离子电池正极材料中的有价金属。结果表明,最佳工艺条件为:原料液固比为50∶1(m L/g),SO_2气体流速为0. 4 L/min,双氧水添加量为0. 1 g/g原料,反应温度为80℃,反应时间为60 min,此时Li、Ni、Co、Mn浸出率分别为98. 10%,98. 04%,97. 81%,98. 05%。浸出液经氧化、沉淀、过滤、静置等除杂过程后,得到的镍钴锰回收产品符合锂离子电池正极材料制备的要求。
Valuable metals were recovered from cathode materials in spent lithium-ion batteries by SO_2 reduction-leaching process. The result showed that the optimum process condition were as follows: with liquid-solid ratio of 50∶ 1( m L/g),SO_2 gas flow rate of 0. 4 L/min,H_2O_2 content of 0. 1 g/g,reaction temperature of 80 ℃,reaction time of 60 min,the leaching rate of Li,Ni,Co and Mn were 98. 10%,98. 04%,97. 81% and 98. 05%,respectively. Quality of the recovered products obtained meet the requirements for the preparation of cathode materials for lithium-ion batteries after being oxidated,precipitated,filtrated,rested.
Valuable metals were recovered from cathode materials in spent lithium-ion batteries by SO_2 reduction-leaching process. The result showed that the optimum process condition were as follows: with liquid-solid ratio of 50∶ 1( m L/g),SO_2 gas flow rate of 0. 4 L/min,H_2O_2 content of 0. 1 g/g,reaction temperature of 80 ℃,reaction time of 60 min,the leaching rate of Li,Ni,Co and Mn were 98. 10%,98. 04%,97. 81% and 98. 05%,respectively. Quality of the recovered products obtained meet the requirements for the preparation of cathode materials for lithium-ion batteries after being oxidated,precipitated,filtrated,rested.
引文
[1]黎宇科.有效利用并完善我国车用动力电池回收体系[J].低碳世界,2012(3):30-31.
[2]戴长松,路密,熊岳平,等.废旧锂离子电池处理处置现状及污染防治对策[J].环境科学与技术,2013,36(12):332-338.
[3] Zeng X,Li J,Singh N. Recycling of spent lithium-ion battery:a critical review[J]. Crit Rev Environ Sci Tecnol,2014,44(10):1129-1165.
[4] Xu J Q,Thomas H R,Francis Rob W,et al. A review of processes and technologies for the recycling of lithium-ion secondary batteries[J]. Journal of Power Sources,2008,177:512-532.
[5]王光旭,李佳,许振明.废旧锂离子电池中有价金属回收工艺的研究进展[J].材料导报A,2015,29(4):113-123.
[6]宋秀玲,戴书琪,徐永胜,等.废旧锂离子电池放电的实验研究[J].应用化工,2015,44(4):594-597.
[7] Swain B,Jeong J,Lee J C,et al. Separation of Co(II)and Li(I)by supported liquid membrane using Cyanex272 as mobile carrier[J]. Journal of Membrane Science,2007,297(1):253-261.
[8]吴芳.从废旧锂离子二次电池中回收钴和锂[J].中国有色金属学报,2004,14(4):697-701.
[9] Sun L,Qiu K. Organic oxalate as leachant and precipitant for the recovery of valuable metals from spent lithium-ion batteries[J]. Waste Management,2012,32(8):1575-1582.
[10]张新乐,徐金球,张晓琳.酸浸-萃取-沉淀法回收废锂离子电池中的钴[J].化工环保,2016,36(3):326-331.
[11] Feng J,Zhang H,Shao L,et al. Cobalt recovery from lithium-ion battery by ion-exchange method[J]. Environmental Sanitation Engineering,2008,16(6):1-3.
[12] Myoung J,Jung Y,Lee J,et al. Cobalt oxide preparation from waste Li Co O2by electrochemical hydrothermal method[J]. Journal of Power Sources,2002,112(2):639-642.
[13] Freitas M,Garcia E M. Electrochemical recycling of cobalt from cathodes of spent lithium-ion batteries[J]. Journal of Power Sources,2007,171(2):953-959.
[14] Meshram P,Pandey B D,Mankhand T R. Hydrometallurgical processing of spent lithium ion batteries(LIBs)in the presence of a reducing agent with emphasis on kinetics of leaching[J]. Chem Eng J,2015,281:418-427.
[15] Ferreir D A,Prados L M Z,Majuste D,et al. Hydrometallurgical separation of aluminium,cobalt,copper and lithium from spent Li-ion batteries[J]. J Power Sources,2009,187(1):238-246.
[2]戴长松,路密,熊岳平,等.废旧锂离子电池处理处置现状及污染防治对策[J].环境科学与技术,2013,36(12):332-338.
[3] Zeng X,Li J,Singh N. Recycling of spent lithium-ion battery:a critical review[J]. Crit Rev Environ Sci Tecnol,2014,44(10):1129-1165.
[4] Xu J Q,Thomas H R,Francis Rob W,et al. A review of processes and technologies for the recycling of lithium-ion secondary batteries[J]. Journal of Power Sources,2008,177:512-532.
[5]王光旭,李佳,许振明.废旧锂离子电池中有价金属回收工艺的研究进展[J].材料导报A,2015,29(4):113-123.
[6]宋秀玲,戴书琪,徐永胜,等.废旧锂离子电池放电的实验研究[J].应用化工,2015,44(4):594-597.
[7] Swain B,Jeong J,Lee J C,et al. Separation of Co(II)and Li(I)by supported liquid membrane using Cyanex272 as mobile carrier[J]. Journal of Membrane Science,2007,297(1):253-261.
[8]吴芳.从废旧锂离子二次电池中回收钴和锂[J].中国有色金属学报,2004,14(4):697-701.
[9] Sun L,Qiu K. Organic oxalate as leachant and precipitant for the recovery of valuable metals from spent lithium-ion batteries[J]. Waste Management,2012,32(8):1575-1582.
[10]张新乐,徐金球,张晓琳.酸浸-萃取-沉淀法回收废锂离子电池中的钴[J].化工环保,2016,36(3):326-331.
[11] Feng J,Zhang H,Shao L,et al. Cobalt recovery from lithium-ion battery by ion-exchange method[J]. Environmental Sanitation Engineering,2008,16(6):1-3.
[12] Myoung J,Jung Y,Lee J,et al. Cobalt oxide preparation from waste Li Co O2by electrochemical hydrothermal method[J]. Journal of Power Sources,2002,112(2):639-642.
[13] Freitas M,Garcia E M. Electrochemical recycling of cobalt from cathodes of spent lithium-ion batteries[J]. Journal of Power Sources,2007,171(2):953-959.
[14] Meshram P,Pandey B D,Mankhand T R. Hydrometallurgical processing of spent lithium ion batteries(LIBs)in the presence of a reducing agent with emphasis on kinetics of leaching[J]. Chem Eng J,2015,281:418-427.
[15] Ferreir D A,Prados L M Z,Majuste D,et al. Hydrometallurgical separation of aluminium,cobalt,copper and lithium from spent Li-ion batteries[J]. J Power Sources,2009,187(1):238-246.