Lunar Mining Ideas Can Transform Earth Mines
编号:452 访问权限:仅限参会人 更新:2022-05-19 17:14:43 浏览:948次 特邀报告

报告开始:2022年05月26日 11:00 (Asia/Shanghai)

报告时间:20min

所在会议:[P1] May 26, 8:30-12:00, Opening Ceremony and Plenary Session » [P1] Opening Ceremony & Keynote Speech

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摘要
Mining on the Moon will provide oxygen, water, and building materials that enable the further exploration of space by humankind. The production of oxygen from lunar soil, called regolith, has received particular attention in recent years as it can be used both for life support and propellant for further missions. The overall flowsheet to produce oxygen from lunar regolith similar to that of metal production from a mined ore on Earth. The process flowsheets both include excavation and beneficiation of the regolith or ore to provide the feedstock for the chemical extraction of oxygen or metal.
For example, hydrogen reduction of the lunar regolith produces oxygen by reduction of ilmenite. Lunar regolith contains less than a few percent ilmenite and must be upgraded first. Additionally, sizing to remove coarse and fine fractions is also required to control the feedstock into the reactor. Terrestrial mineral processing technologies will not work directly on the Moon, due to the low gravity, lack of atmosphere and, critically, the lack of water. Dry processing is the only viable route for regolith beneficiation. Electrostatic and magnetic beneficiation are of particular interest, as they does not require a process fluid and is enhanced by the absence of water. Furthermore, ilmenite is amenable to concentration using electrostatic methods, as is used for beach sands on Earth.
In this presentation, we discuss the issues and potential for regolith beneficiation on the Moon. We look at the likely scale of lunar mining operations, and illustrate some of the sizing and beneficiation techniques required. In particular, we assess the potential for crossover of technologies and operational concepts into more sustainable terrestrial mining operations.
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报告人
Jan Cilliers
Professor Fellow of the UK Royal Academy of Engineering, Professor of Imperial College London

Jan Cilliers is Professor of Mineral Processing and was Head of Department of Earth Science and Engineering in the Royal School of Mines at Imperial College London, where he leads the Rio Tinto Centre for Advanced Mineral Recovery, which was established at Imperial College in 2008 to develop new technologies in block caving, leaching and flotation.
After studying Minerals Engineering, and working both underground and above on the South African gold and platinum mines, he did his PhD in Cape Town. He moved to the UK in 1993, where he established his flotation research team, uniquely specialising in the role of the froth in separating minerals. His research develops complex physical models and measurement techniques to improve mineral separations.
He serves on the International Mineral Processing Council, and leads the Commission on Education. In 2010 he was made a Fellow of the Royal Academy of Engineering. He is also a fellow of both The Institution of Chemical Engineers and The Institution of Materials, Mining and Metallurgy.

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