Results 1 to 10 of about 63 (53)

锂离子电池生产废水处理与回用技术研究进展

open access: yesGongye shui chuli
新能源电池行业是深入推进能源革命、实现可持续发展的重要新质生产力。分析了锂离子电池生产废水的来源与水质水征,总结了面向达标排放、再生处理与资源化回收的处理技术与工艺体系,探讨了当前面临的技术挑战与未来发展方向。锂离子电池废水包括含磷、含钴、三元废水,萃取废水,石墨提纯废水,正负极废水、电解液废水和清洗废水,部分废水的COD可达3 000~6 000 mg/L,Li+质量浓度高达3 100 mg/L,SO42-质量浓度可达8 700 mg/L。实际工程采用“物化预处理-生化处理-深度处理与资源化”技术体系:
邱渝   +7 more
doaj   +4 more sources

Toward Sustainable Spent Cathode Recycling Technology: Failure Mechanism, Advancing Technology and Prospect

open access: yesRare Metals, Volume 45, Issue 5, May 2026.
ABSTRACT The cathode materials from spent batteries are expected to become a resource stream rich in critical metals, drawing increasing attention to the disposal and recycling of spent lithium‐ion batteries (LIBs). However, due to current technological limitations, the recycling efficiency and environmental sustainability of LIBs still face ...
Fenqiang Luo   +9 more
wiley   +1 more source

Prioritized Lithium Extraction From Spent Lithium‐Ion Batteries via Low‐Temperature Chlorination Mediated by Seawater‐Derived Chlorides

open access: yesRare Metals, Volume 45, Issue 2, February 2026.
ABSTRACT Chlorination roasting has emerged as a promising pyrometallurgical strategy for the selective recovery of lithium from spent lithium‐ion batteries (LIBs). In this study, a natural roasting agent, seawater‐derived chlorides, was employed to selectively extract lithium from spent LiNi0.5Co0.2Mn0.3O2 (NCM523) cathode. MgCl2·6H2O, a main component
Bei‐Lei Zhang   +7 more
wiley   +1 more source

A Dual Closed‐Loop Process to Recycle High Nickel Cathode of Spent Lithium‐Ion Batteries via Deep Eutectic Solvents: Computational Screening and Experimental Validation

open access: yesRare Metals, Volume 45, Issue 1, January 2026.
ABSTRACT Deep eutectic solvents (DESs) have displayed a significant potential in green recycling of spent lithium‐ion batteries (LIBs) cathode materials. In this study, we proposed a computational screening strategy based on the binding energy and hydrogen bonding performance via density functional theory and molecular dynamic calculation, achieving a ...
Yang Chen   +7 more
wiley   +1 more source

ICP-AES法测定火电厂垢成分实验条件优化研究

open access: yesGongye shui chuli, 2020
采用电感耦合等离子发射光谱法(ICP-AES)测定火电厂机组水汽系统垢和腐蚀产物中K、Ca、Na、Mg、Fe、Al、Cu等金属元素含量,需对样品进行熔融、浸取等处理以制得符合仪器进样条件的待测液。对影响偏硼酸锂熔融法制备垢成分待测液的操作条件,如熔融温度、熔融时间、熔剂投加量及样品前处理方法等进行了实验优化。制得的测试液透明无沉淀,提高了样品熔融浸取效果。在优化后的条件下,对多个电厂垢样进行熔融浸取及待测液成分检测,其元素回收率为92.75%~95.77%,RSD均低于2%,验证了本方法的准确性和可靠性。
顾泽坤   +4 more
doaj   +2 more sources

溶剂萃取石墨炉原子吸收光谱测定盐卤中痕量锂的研究

open access: yes四川大学学报. 自然科学版, 1997
采用石墨炉原子吸收光谱,研究在盐卤中锂的原子化行为和机理.建立了热解石墨管、Al(NO3)3基体改进剂、苏丹Ⅰ-三辛基甲基氯化铵-邻二氯苯萃取分离石墨炉原子吸收测定盐卤中锂的方法.用于测定盐卤中痕量锂,特征质量为16×10-12g/0.0044A,加标回收率95%~104%,相对标准偏差(n=13)5.4%.
向立人, 张波
doaj  

油田采出水锂资源梯级膜浓缩与纯化

open access: yesGongye shui chuli
针对油田采出水吸附提锂所得富锂液存在锂浓度低、杂质含量高,易造成后续碳酸锂沉淀过程能耗高、纯度差等问题,本文系统开展了膜集成工艺用于富锂液纯化与浓缩的研究。以中原油田吸附提锂富锂液为研究对象,构建了“反渗透(RO)初步浓缩→纳滤(NF)深度除杂→两级电渗析(ED)串联浓缩”的梯级耦合工艺,考察该集成体系整体分离浓缩效果。结果表明:RO单元将富锂液中Li+从167 mg/L浓缩至2074 mg/L,浓缩倍数达12.42倍,且对Li⁺截留率不低于99.2%;NF单元对Ca2+、Mg2+的去除率分别达82.3%
王莲莲, 袁伟红, 单威威
doaj   +4 more sources

基于多孔材料强化蒸馏法的提锂废水氨氮阶段浓缩与高效回收

open access: yesGongye shui chuli
为探索提锂工艺废水中氨氮浓缩和回收的可行性,考察了蒸馏法进行氨氮浓缩试验中冷凝液氨氮浓度变化和浓缩特征。通过添加人造沸石(FS)、玻璃珠(BZ)和椰壳活性炭(YK)等材料,划分S1-S10蒸馏阶段对提锂工艺废水(氨氮约954.7 mg/L)开展蒸馏试验。结果表明,FS组中在蒸馏前3阶段(S1~S3)氨氮浓缩比(k值)最高(2.40、1.73、1.23),保留了90%以上氨含量,且59.7%集中于蒸馏前期;BZ组和YK组在蒸馏最后阶段(S10)k值最高(1.37、2.31)。蒸馏材料的40、80、160 ...
杨怡   +7 more
doaj   +4 more sources

火焰发射光谱法定量测定人血清锂的研究——附43例广州地区正常成人血清锂含量测定

open access: yesZhongshan Daxue xuebao. Yixue kexue ban, 1987
采用火焰发射光谱法对人血清锂的定量测定进行了研究。实验表明,溶液中锂的检出限为0.4μg/l,浓度与光密度的关系符合Lambert-Beer定律,呈直线正相关(r=0.999995 ...
冼汉隆
doaj  

低品位含锂气田采出水提锂技术研究与现场试验

open access: yesGongye shui chuli
近年来,随着新能源汽车市场对碳酸锂产品需求量的增加,气田采出水中锂资源开发引起社会各界广泛关注。气田采出水因化学组分复杂、Li+浓度相对盐湖卤水低,提锂工艺一直是制约气田采出水中锂资源化利用的关键问题。基于长庆靖边气田采出水低品位含锂特征(质量浓度50 mg/L以下),分别从预处理工艺及参数优选、提锂关键技术(吸附法和电化学法)评价及参数优化、现场提锂效果及成本分析等方面开展了研究。结果表明,气田采出水经絮凝沉淀-臭氧催化氧化预处理后,浊度去除率在90%以上,COD去除率可达43 ...
姬伟   +6 more
doaj   +2 more sources

Home - About - Disclaimer - Privacy