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Separation of indium(Ⅲ), gallium(Ⅲ), and zinc(Ⅱ) with Levextrel resin containing di(2-ethylhexyl) phosphoric acid (CL-P204): Part Ⅱ. Mechanism and kinetics of adsorbing indium(Ⅲ)LIU Junshen, ZHOUBaoxue, CAI Chunguang, CAIJun, and CAI Weimin1) School of Environmental Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China2) School of Chemistry and materials Science, Yantai......
Processing and Bioengineering,Central South University, Changsha 410083 , China) Abstract: Thermodynamics and technologies of separating gallium and germanium from ferrous powder produced from zinc leach residues were investigated by corrosion process. Thermodynamic results show that under the specific conditions on pH value and potential φ, metallic iron may precipitate as goethite, while gallium......
of small amount gallium (up to 0.06%) on the corrosion behavior of pure aluminum (99.99%,4N) in chloride solution was investigated using a potentiodynamic polarization technique.It has been found that the open circuit corrosion potential and the pitting potential shifted in the active (negative) direction with increasing gallium content,while corrosion rate and pitting occurrence factor......
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presenting a potential industrial application. Key words: zinc refinery residues; gallium; germanium; stepwise leaching 1 Introduction Germanium (Ge) and gallium (Ga) are considered as strategic metals... metals-The cases of gallium, germanium and indium [J]. Resources Policy, 2017, 52: 327-335. [4] SIONTAS S, LI D, WANG H, A. V. P. S A, ZASLAVSKY A, PACIFICI D. High-performance germanium quantum dot......
:The gallium electrodeposition from alkaline solution has a very low current efficiency,the reason for which is still not quite understood.The effects of electrode materials used for gallium electrodeposition,as well as the effects of Na OH concentration and the anions concentrations in the solution,including SO42-,SiO32-,CO32-,AlO2-,F-,and Cl......
gallium and germanium by high pressure acid leaching LIU Fu-peng, LIU Zhi-hong, LI Yu-hu, LIU Zhi-yong, LI Qi-hou (School of Metallurgy and Environment, Central South University, Changsha 410083, China) Abstract: The high pressure acid leaching of zinc powder replacement residue containing gallium and germanium was carried out. The effects of sulfuric acid concentration, liquid to solid ratio, time......
；HBL121 萃取剂；锌置换渣；高浓度硫酸浸出液；萃取；反萃Extraction of gallium from high concentration sulfuric acid leaching solution of zinc replacing slag by HBL121ZHANG Kui-fang,CAO Zuo-ying,XIAO Lian-sheng,ZENG Li,ZHANG Gui-qing,LI Qing-gang(School of Metallurgy and Environment,Central South University,Changsha 410083,China)Abstract:The extraction of gallium from high sulfuric acid leach solution of zinc replacing slag......
腐植酸与镓,铟的吸附模型 杜冬云1,刘建平1,邹光中1 (1.湖北师范学院化学系,黄石435002) 摘要:对腐植酸与镓,铟的吸附作用作了实验研究, 提出了拟合实验数据的理想吸附等温方程, 并对作用机理予以推断. 关键词:腐植酸; 镓; 铟; 吸附; [全文内容正在添加中] ......
GaN基热氧化物的XPS和椭偏光谱研究 杨谟华1,于奇1,杜江锋1,赵金霞1 (1.电子科技大学微电子与固体电子学院电子薄膜与集成器件国家重点实验室,成都,610054) 摘要:采用X射线光谱R(XPS)和椭偏测试仪(SE)对GaN材料干氧氧化所得氧化物薄膜的组分,厚度,光学常数等物理特性进行了研究.当氧化温度为900℃,氧化时间为15~240min时,XPS测试结果表明,所得氧化物类型为Ga_2O_3,且由于大量O空位的存在,其表面Ga/O比率约为1.2.SE测试结果表明,GaN线性氧化速率约为40nm/h,呈抛物线生长,最终平均氧化速率约为25nm/h.在300~800nm测试范围内......
