2023-09-07 プリンストン大学
◆この方法は、従来のリチウム抽出方法に比べて土地の必要量を90％以上削減し、蒸発プロセスを20倍以上高速化し、リチウム収穫を1か月未満で可能にします。また、この技術は他の鉱物の抽出にも適用可能で、環境に優しいリチウム抽出の新たな可能性を提供します。
＜関連情報＞
- https://engineering.princeton.edu/news/2023/09/07/revolutionizing-lithium-production-string
- https://www.nature.com/articles/s44221-023-00131-3
塩水からの選択的リチウム抽出のための空間分離晶析 Spatially separated crystallization for selective lithium extraction from saline water
Xi Chen,Meiqi Yang,Sunxiang Zheng,Fernando Temprano-Coleto,Qi Dong,Guangming Cheng,Nan Yao,Howard A. Stone,Liangbing Hu & Zhiyong Jason Ren
Nature Water Published:07 September 2023
DOI:https://doi.org/10.1038/s44221-023-00131-3
Abstract
Limited lithium supply is hindering the global transformation towards electrification and decarbonization. Current lithium mining can be energy, chemical and land intensive. Here we present an efficient and self-concentrating crystallization method for the selective extraction of lithium from both brine and seawater. The sequential and separable crystallization of cation species with different concentrations and solubilities was enabled by a twisted and slender 3D porous natural cellulose fibre structure via capillary and evaporative flows. The process exhibited an evaporation rate as high as 9.8 kg m−2 h−1, and it selectively concentrated lithium by orders of magnitude. The composition and spatial distribution of crystals were characterized, and a transport model deciphered the ion re-distribution process in situ. We also demonstrated system scalability via a 100-crystallizer array.
