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J, et al. Mechanism of Au(CN)-2 solvent extraction by surfactant [J]. Spectroscopy and Spectral Analysis, 1999, 19(6): 806-810. [24]Yu S Q, Chen J Y. Discussion on salting-out effect for two... in aqueous phase Adding Li, Na, K, Ca and Mg chloride into system A , their effect on the gold extraction is shown in Fig.8. Fig.8 Influence of salting out agents on distribution ratio of gold......
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) and by the solvation extraction system[17, 20]. However, positive values for ΔSΘ were obtained in some primary amine extraction systems[16-17], indicating the effect of temperature on solvent extraction... the formation of Cu(CN)43-, high cyanide levels depress copper loading. The similar effect of cyanide levels on silver solvent extraction has also been noticed due to the formation of Ag(CN)32- and Ag(CN......
Study on Gold (Ⅰ) Solvent Extraction from Alkaline Cyanide Solution by TBP with Addition of Surfactant潘学军,陈景摘 要:1IntroductionIn1970′s,manyresearchersbeganstudyongold(Ⅰ)extractionfromalkalinecyanidesolution[1,2],butitwasinteruptedduetoth...关键词:......
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carried out at 293 K (except for effect of temperature experiments). The extraction efficiency (E) and distribution coefficient (D) of bimuth ions are expressed as the following equations:  ...J. Cent. South Univ. (2016) 23: 3085-3091 DOI: 10.1007/s11771-016-3373-9 Solvent extraction mechanism and precipitation stripping of bismuth (III) in hydrochloric acid medium by tributyl phosphate......
ore leaching solution is a better selection [3-5]. The studies about solvent extraction of zinc from sulfate solution were mostly carried out on the background of removing trace impurity zinc [6-7... with metal ions, which accelerates the extraction reaction in the alkaline environment. 3.9 Effect of stripping speed on extraction ratio of zinc The stripping was carried out using sulfuric acid......
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Extracting vanadium from stone-coal by oxygen pressure acid leaching and solvent extraction DENG Zhi-gan(邓志敢), WEI Chang(魏 昶), FAN Gang(樊 刚), LI Min-ting(李旻廷), LI Cun-xiong(李存兄), LI... ____________________________________________________________________________________________ Abstract: Vanadium extraction from stone-coal was investigated by oxygen pressure acid leaching and solvent extraction......
difficult to separate the extraction solvent into two phases, and the accuracy and reproducibility will probably be not so satisfied. Fig. 5 Effect of sodium chloride on phase volume ratio and recovery... distribute in surfactant-rich phase. Aliquots of surfactant-rich phase were drawn out by a syringe for HPLC (Shimadzu, two LC-20 AT pumps coupled with a UV detector) analysis. A symmetry C-18 column (150 mm......