Research On Desulfurization Process Of Modified Zinc-based Desulfurizer And Conversion Of Waste Desulfurizer

In recent years,metal sulfide has become the electrode material of lithium ion battery and sodium ion battery due to its high theoretical specific capacity.Therefore,it is of far-reaching significance to prepare and study the composite metal sulfide material with good performance.Ni_0.05Zn_0.95O（NZO1）,Ni_0.1Zn_0.9O（NZO2）,Ni_0.15Zn_0.85O（NZO3）and Ni_0.2Zn_0.8O（NZO4）composite oxides with different mole ratios were prepared by simple hydrothermal method.By exploring the influence of different hydrothermal time and temperature on the structure and morphology of the samples,it was found that the rod-like Zn-Ni composite oxides were uniformly distributed when the temperature was150°C and the time was 16 h.The rod-shaped Zn-Ni complexes with different Zn-Ni ratios prepared under the optimum reaction conditions were desulfurized at 350°C temperature,35 sccm gas velocity and 20 h time.The analysis of the composition of the desulfurization products showed that the best zinc-Nickel desulfurizer ratio was Ni0.15Zn0.85O.In order to obtain pure composite metal sulfide,four zinc-nickel composite oxides with different proportions were deeply desulphurized,and the obtained desulfurization products were cation exchange reaction with copper salt solution to obtain composite sulfide materials.When used as lithium electrode material,under the condition of 0.1 A·g^-1,the electrode material transformed from NZO2 sample has the best performance,and its initial specific capacity is 962.6 m Ah·g^-1.After charging and discharging 300 times,it still has 909.7m Ah·g^-1specific capacity,and the retention rate is 94.5%.The performance of NZO4electrode material lithium is the worst.When used as sodium electrode material,the electrode material transformed by NZO3 sample has the best performance under the condition of 0.1 A·g^-1.Its initial specific capacity is 504.2 m Ah·g^-1,and after 80 charges and discharges,it still has 384.5 m Ah·g^-1specific capacity,and the retention rate is59.1%,which is higher than the other three kinds of proportional transformation products.The sodium electrical properties of the electrode material transformed by NZO4 sample are close to them.Figure 47;Table 2;Reference 96...