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废旧锂离子电池循环再生研究现状与发展前景 万钧1,赵乾1,崔宏祥1,王志远1 (1.天津理工大学材料科学与工程学院,天津,300191) 摘要:分析了锂离子电池的结构及其失效原因,根据废旧锂离子电池回收处理过程,综合比较了国内外锂离子电池的拆解破碎方法,电解液处理,溶剂分离法,热处理法,碱浸酸溶全湿法,萃取法,沉淀法等多种回收处理工艺,提出了废旧锂离子电池回收工艺技术存在的问题和发展前景. 关键词:废旧锂离子电池; 循环; 再生; 有价金属; spent lithium-ion battery; recycle; recovery; valuable metals; [全文内容正在添加中] ......
有机硅偶联剂合成中废催化剂铂含量的测定谢芳琴1,2,董占能3,吴立生4,陈宇航3(1.湖北省荆州市长江大学化学与环境工程学院2.云南省昆明市昆明理工大学环境科学与工程系3.昆明理工大学 环境科学与工程学院,昆明 6500934.云南大学 分析测试中心,昆明 650093)摘 要:有机硅偶联剂合成过程中产生的废催化剂成分复杂,其中铂含量的确定对研究催化剂的性能和回收有重要的影响.研究改进光度法对该废催化剂中铂的含量进行分析,结果表明此方法是简便高效的分析方法.关键词:分析化学； 铂； 光度法； 有机......
of platinum group metals from spent auto-catalysts by smelting[J]. Nonferrous Metals, 2017, 8: 40-43. [10] 贺小塘, 李 勇, 吴喜龙, 等. 等离子熔炼技术富集铂族金属工艺初探[J]. 贵金属, 2016, 37(1): 1-5. HE Xiao-tang, LI Yong, WU Xi... metals from spent automotive exhaust catalysts[J]. Precious Metals, 2019, 40(3): 76-83. [2] 李 权, 余建民, 沙 娇, 等. 双湿法从汽车失效催化剂中回收铂族金属及有价金属[J]. 贵金属, 2015, 36(3): 1-9. LI Quan, YU Jian-min, SHA Jiao, et al......
Trans. Nonferrous Met. Soc. China 30(2020) 2256-2264 Reductive acid leaching of valuable metals from spent lithium-ion batteries using hydrazine sulfate as reductant Jian YANG, Liang-xing JIANG, Fang... was used as a reducing agent for the leaching of Li, Ni, Co and Mn from spent lithium-ion batteries. The effects of the reaction conditions on the leaching mechanism and kinetics were characterized......
制酸废催化剂回收钒王晓丹1,朱云1(1.云南省昆明市昆明理工大学材料与冶金工程学院)摘 要:用硫酸浸出-P204萃取工艺从制酸废催化剂中回收钒.结果表明,在浸出条件为硫酸浓度50g/L,液固比2∶1,时间30min时,钒的浸出率可达95%.浸出液经过P204萃取,饱和NaHCO3溶液反萃,反萃液净化,铵盐沉钒,偏钒酸铵热分解后得到了合格的V2O5.关键词:冶金技术； 钒； 硫酸浸出； 制酸废催化剂......
; 文献标志码:A Characteristics of Pb(Ⅱ) adsorption on esterified spent grain LI Qing-zhu1, 2, 3, QIN Wen-qing2, CHAI Li-yuan1, 3, WANG Qing-wei1, 2, 3 (1..., China; 3. Chinese National Engineering Research Center for Control & Treatment of Heavy Metal Pollution, Central South University, Changsha 410083, China) Abstract: Spent grain, a by-product......
; 文章编号:1672-7207(2013)07-3080-06 Biosorption of Cu2+ from simulated acid mine drainage by modified spent shiitake substrate CHEN Yuefang1, 2, CAO Lixia1, LIN Hai1, DONG..., Trondheim 7491, Norway) Abstract: NaOH combining microwave-assisted phosphorylation was used to modify natural spent shiitake substrate and the product was named modified spent shiitake substrate......
increased but the Na content decreased. Key words: biomass material; spent shiitake substrate; modification; adsorption; heavy metal; Cu2+ 1 Introduction Heavy metals as raw materials or catalysts... Beijing, Beijing 100083, China Received 23 April 2014; accepted 13 July 2014 Abstract: Cu2+ adsorption from simulated aqueous solution was investigated using a modified spent shiitake substrate (MSSS......
and environmental friendly technology for recovering lead from spent lead acid batteries (LABs). The feasibility of this process was firstly assessed based on thermodynamics fundamentals... spent LABs via molten salt extraction process. Key words: electrochemical behavior; Pb(II); reduction; spent lead acid batteries; eutectic NaCl-KCl melt 1 Introduction Lead is now widely used......
Effect of magnesium on the aluminothermic reduction rate of zinc oxide obtained from spent alkaline battery anodes for the preparation of Al–Zn–Mg alloysRocio Ochoa,Alfredo Flores,Jesus Torres摘 要:The aluminothermic reduction of zinc oxide(ZnO) from alkaline battery anodes using molten Al may be a good option for the elaboration of secondary 7000-series......
