期刊
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
卷 60, 期 7, 页码 3368-3388出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201912205
关键词
asteroid mining; continuous-flow extraction; in situ resource utilization; ionic liquids; space manufacturing
资金
- University of Adelaide
This review discusses how chemical process intensification can help with in situ resource utilization of asteroids, focusing on continuous microflow solvent extraction and the use of ionic liquids as disruptive technologies. It also proposes a pathway toward water savings in asteroid mining processes.
For the in situ resource utilization (ISRU) of asteroids, the cost-mass conundrum needs to be solved, and technologies may need to be conceptualised from first principals. By using this approach, this Review seeks to illustrate how chemical process intensification can help with the development of disruptive technologies and business matters, how this might influence space-industry start-ups, and even industrial transformations on Earth. The disruptive technology considered is continuous microflow solvent extraction and, as another disruptive element therein, the use of ionic liquids. The space business considered is asteroid mining, as it is probably the most challenging resource site, and the focus is on its last step: the purification of adjacent metals (cobalt versus nickel). The key economic barrier is defined as the reduction in the amount of water used in the asteroid mining process. This Review suggests a pathway toward water savings up to the technological limit of the best Earth-based processes and their physical limits.
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