The organic phase extracted from interfacial crud of copper solvent extraction at Dexing Copper Mine was analyzed for its different components by combined gas chromatography mass spectroscopy. It was found that the ma...The organic phase extracted from interfacial crud of copper solvent extraction at Dexing Copper Mine was analyzed for its different components by combined gas chromatography mass spectroscopy. It was found that the main impurities in organic phase were methylnaphthalenes and di methylnaphthalenes which originated from commercial 260# kerosene used as diluent. It was found that the impurities containing diluent was unfavorable to phase disengagement. Methods were suggested to improve diluent properties to prevent stable interfacial emulsion.展开更多
A series of oil products taken from oil refining factories were used as diluents for copper extraction. The influence of diluents on extraction properties has been investigated. The extractants used are Lix984(He...A series of oil products taken from oil refining factories were used as diluents for copper extraction. The influence of diluents on extraction properties has been investigated. The extractants used are Lix984(Henkel) and M5640(Zeneca), and the adaptability of this diluents to these extractants is compared. The checked extraction properties include loading capacity, extraction and strip kinetics, copper/iron selectivity and phase disengagement. The results showed that DSR3 is a suitable diluent for M5640 and Lix984. Further research has been done to reduce the cost of this product by omitting several steps from its production process.展开更多
The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricac...The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricacid and OMPPD were investigated. The interaction among OMPPD, the extracted species and diluent has been dis-cussed. The experiments show that the extraction ability of OMPPD decreases gradually for eight diluents in the fol-lowing order: benzene, toluene, n-octane, sulfonated kerosene, cyclohexane, carbon tetrachloride, 1,2-dichloroetheneand chloroform. It cannot be interpreted only on the basis of polarity of diluents.展开更多
文摘The organic phase extracted from interfacial crud of copper solvent extraction at Dexing Copper Mine was analyzed for its different components by combined gas chromatography mass spectroscopy. It was found that the main impurities in organic phase were methylnaphthalenes and di methylnaphthalenes which originated from commercial 260# kerosene used as diluent. It was found that the impurities containing diluent was unfavorable to phase disengagement. Methods were suggested to improve diluent properties to prevent stable interfacial emulsion.
文摘A series of oil products taken from oil refining factories were used as diluents for copper extraction. The influence of diluents on extraction properties has been investigated. The extractants used are Lix984(Henkel) and M5640(Zeneca), and the adaptability of this diluents to these extractants is compared. The checked extraction properties include loading capacity, extraction and strip kinetics, copper/iron selectivity and phase disengagement. The results showed that DSR3 is a suitable diluent for M5640 and Lix984. Further research has been done to reduce the cost of this product by omitting several steps from its production process.
文摘The extraction of uranium ((Ⅵ) from nitric acid solution with N-octanoyl-2-methylpiperidine (OMPPD)in eight diluents and the dependence of distribution ratio on temperature and concentrations of both aqueous nitricacid and OMPPD were investigated. The interaction among OMPPD, the extracted species and diluent has been dis-cussed. The experiments show that the extraction ability of OMPPD decreases gradually for eight diluents in the fol-lowing order: benzene, toluene, n-octane, sulfonated kerosene, cyclohexane, carbon tetrachloride, 1,2-dichloroetheneand chloroform. It cannot be interpreted only on the basis of polarity of diluents.
