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Sorption of certain lanthanides by kieselguhr loaded with Cyanex 572 from sulfate mediumSh.Sh.Emam1,M.S.Gasser1,N.E.El-Hefny1,W.H.Mahmoud2,H.F.Aly11. Hot Laboratories Centre,Atomic Energy Authority2. Department of Chemistry,Faculty of Science,Ain Shams University摘 要:Kieselguhr for chromatography was loaded with Cyanex 572 extractant and characterized......
technology of extracting tungsten from alkaline solution using quaternary ammonium salt as extractant has problem of disequilibrium of alkali and water because the sodium hydroxide is consumed and regenerated... the flowsheet and cancel the regeneration process by using mixed quaternary ammonium salt of bicarbonate and carbonate as extractant. The effect of various factors, such as temperature, phase ratio, contact......
PURIFICATION OF COBALT ANOLYTE USING THE NOVEL SOLVENT EXTRACTION SYSTEM W.Y.Niu1,W.Y.Xue1,Y.F.Shen2 (1.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110014, China;2.Jinchuan Non-ferrous Metals Complex, Jinchuan 737100, China) Abstract:In present research, a novel extractant system (D2EHPA + naphthenic acid +pyridine-ester) was used to purify cobalt anolyte......
as Ce(HF)(HSO4)2(SO4).2Lby which HF comes into the organic phase mainly when there is Ce4+ in the solution,where L is the extractant. Temperature did not affect the extraction. The IR spectraof purified......
) from sulphuric acid medium with Di(2-ethylhexyl) phosphoric acid(DEHPA) was studied. The influence of sulphate ion, acidity, extractant concentration as well as the presence of fluoride ion......
Study on Adsorption Behavior of Rare Earth Complexes on Nanometer-Size Titanium Dioxide with ICP-AES 江祖成1,胡斌1,梁沛1,秦永超1 (1.Department of Chemistry, Wuhan University, Wuhan 430072, China) Abstract:A new method of using nanometer TiO2 as solid-phase extractant coupled with ICP-AES was proposed for speciation of rare earth elements. The adsorption behavior of rare earth complexes on nanometer TiO2......
与游离态Zn2+作用生成配合物,NH3未被萃取. 关键词:氧化锌矿；Zn(Ⅱ)-NH3体系；溶剂萃取；2-乙酰基-3-氧代-二硫代丁酸-十四烷基酯 中图分类号:TF804.2 文献标志码:A Solvent extraction of zinc from Zn(Ⅱ)-NH3 complex system by new extractant...) Abstract: In order to enrich the zinc concentration in ammoniacal leaching solution of low grade of zinc oxide ores, 2-acetyl-3-oxo-dithiobutyric acid-myristyl ester, a new extractant, named......
extraction of copper were investigated. Lix984 dissolved in kerosene was used as extractant. The results show that it is possible to selectively leach copper from the ores by heap leaching. The copper..., the co-extraction of impurities was inevitable using Lix984 as extractant. Therefore, to obtain the pregnant metal solution with low impurities, the loaded organic must be scrubbed to remove the co......
]quinazolin- 6(7H)-one dissolved in methylene chloride. It has been found that extraction efficiency of 84% was achieved by contacting equal volumes of 0.32% extractant with 4.5 mol/L sulfate solution... minerals obtained from Kadabora-Central Eastern of Egypt. 2 Experimental 2.1 Synthesis of extractant The β-diketone 1,3 cyclohexane dione was selected as starting material to prepare......
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