Recently, the results of the selection of the 2020-2021 Natural Science Excellent Academic Achievement Awards in Xining have been announced. ISL won two natural science achievement awards.
The accomplishment “Lithium recovery from effluent of spent lithium battery recycling process using solvent extraction” took home the top honor. It mainly aims to solve the problem of low lithium yield in the recycling process of waste lithium batteries, which causes waste of lithium resources. It suggested to use a new extraction method to effectively extract lithium from the leftover lithium battery tailings. Through balance extraction studies, the effects of important parameters on the lithium extraction effect were examined. These parameters included solution pH value, saponification level, solution lithium concentration, and phase ratio. Under optimized conditions, more than 90% of the lithium can be effectively recovered. The extracting organic phase can be recycled and no emulsification phenomenon occurs during the entire extraction process.
A new process for efficient extraction of lithium from the tailings of waste lithium batteries has been proposed. The effects of key parameters such as solution pH value, saponification degree, solution lithium concentration, and phase ratio on the lithium extraction effect were investigated through balance extraction experiments. Under optimized conditions, more than 90% of the lithium can be effectively recovered. The extracting organic phase can be recycled and no emulsification phenomenon occurs during the entire extraction process. This research provides a new process for the efficient recovery of lithium in waste lithium batteries. Associate researcher Zhang Licheng is the first author of this achievement. (Full text link: doi:10.1016/j.jhazmat.2020.122840)
The achievement “Effects of fly ash, phosphoric acid, and nano-silica on the properties of magnesium oxychloride cement” won the third prize. It mainly aims to solve the problem of poor water resistance of magnesium oxychloride cement (MOC) materials. A composite additive mainly composed of fly ash, phosphoric acid, and nano-silica is proposed to improve the performance of MOC materials. Through microscopic, phase, macroscopic physical property testing and hydration mechanism analysis, the effect of different doping forms on the water resistance of MOC is compared in detail. It is described how changes in microstructure affect macroscopic mechanical properties and how this law works. This study offers new approaches and theoretical guidelines for enhancing MOC materials' water resistance. Associate researcher Zheng Weixin is the main author of this achievement. (Full text link: doi:10.1016/j.ceramint.2021.08.347)
In the 2020-2021 Natural Science Excellent Academic Achievement Awards in Xining, a total of 76 excellent academic achievements in science, engineering, agriculture, medicine, comprehensive and monographs, research reports and other fields were collected. According to the “Xining Natural Science Excellent Academic Achievement Review and Reward Measures”, 17 excellent academic achievements in natural science were determined. Among them: 3 first prizes, 5 second prizes, and 9 third prizes.
A total of 76 exceptional academic achievements in science, engineering, agriculture, medicine, comprehensive and monographs, research reports, and other subjects were gathered for the 2020–2021 Natural Science exceptional Academic Achievement Awards in Xining. 17 outstanding academic achievements in natural science were determined in accordance with the rules. 3 first awards, 5 second prizes, and 9 third prizes were among them.
Mechanism of lithium extraction process with diketone extraction system
Extraction of process lithium tailing from waste lithium battery recovery
Practical application scenarios of magnesium cement research results