A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common io...A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.展开更多
Four isothermal sections at 298.15K,308.15K,318.15K and 328.15K in system water-n-hexane-ethanol were measured by gas chromatograph method.The innerscaling method was used to determine the concentrations of n-hexane a...Four isothermal sections at 298.15K,308.15K,318.15K and 328.15K in system water-n-hexane-ethanol were measured by gas chromatograph method.The innerscaling method was used to determine the concentrations of n-hexane and ethanol in this ternary system.Ethy1 acetate was chosen as the sample of inner-scaling because of its separability and fit retainning time.Acetylacetone was chosen as diluent of the oil phase andn-butyl alcohol was chosen as diluent of the water phase.The experimental data of four isothermal sections at 298.15K,308.15K,318.15K adn 328.15K in system water-n-hexane-ethanol at normal pressure were given.Four schematic figures were also given.The character of these phase diagrams was analysed.They were compared with the phase diagram of system water-n-hexane-methanol.The possible causes of experimental error were discussed.The root mean square error of measurement is 1.47%.展开更多
文摘A study on liquidliquid extraction of palladium based on KIethanol in the presence of ammonium sulphate was performed.The results showed that PdI42- can be easily extracted into the ethanol phase.Common ions,such as Fe(Ⅲ),Al(Ⅲ),Zn(Ⅱ),Mn(Ⅱ),Ni(Ⅱ),Cr(Ⅲ),and Co(Ⅱ),could not be extracted into the ethanol phase and do not interfere with the determination of Pd(Ⅱ) at pH45.
文摘Four isothermal sections at 298.15K,308.15K,318.15K and 328.15K in system water-n-hexane-ethanol were measured by gas chromatograph method.The innerscaling method was used to determine the concentrations of n-hexane and ethanol in this ternary system.Ethy1 acetate was chosen as the sample of inner-scaling because of its separability and fit retainning time.Acetylacetone was chosen as diluent of the oil phase andn-butyl alcohol was chosen as diluent of the water phase.The experimental data of four isothermal sections at 298.15K,308.15K,318.15K adn 328.15K in system water-n-hexane-ethanol at normal pressure were given.Four schematic figures were also given.The character of these phase diagrams was analysed.They were compared with the phase diagram of system water-n-hexane-methanol.The possible causes of experimental error were discussed.The root mean square error of measurement is 1.47%.
