Beneficiation of rare earth elements bearing ancylite
dc.contributor.advisor | Anderson, Corby G. | |
dc.contributor.author | Cui, Hao | |
dc.date.accessioned | 2016-01-06T17:38:49Z | |
dc.date.accessioned | 2022-02-03T12:52:58Z | |
dc.date.available | 2017-01-05T04:18:44Z | |
dc.date.available | 2022-02-03T12:52:58Z | |
dc.date.issued | 2015 | |
dc.identifier | T 7931 | |
dc.identifier.uri | https://hdl.handle.net/11124/166684 | |
dc.description | 2015 Fall. | |
dc.description | Includes color illustrations, color map. | |
dc.description | Includes bibliographical references. | |
dc.description.abstract | The increasing demand for the rare earth elements (REEs) is driven by new technologies, including computers, automobiles and other advanced technology applications. Currently, bastnasesite, monazite and xenotime are three major commercial rare earth minerals throughout the world. China is the biggest rare earth producer, however, because of the restriction of Chinese rare earth export, the rest of the world has been to develop proper rare earth resources to replace supply from China. Ancylite, a rare earth strontium carbonate, is a potentially commercial rare earth mineral. In this research, the materials obtained from Bear Lodge, Rare Earth Resources, Ltd., were investigated to develop a proper procedure to efficiently separate rare earth minerals from their gangue minerals. Mineralogical characterization shows that ancylite is the dominant rare earth mineral, and calcite is the major gangue mineral, which is strongly associated with ancylite. The surface chemistry aspects, including electrokinetics, hydroxamic acid adsorption and microflotation, of ancylite, strontianite and calcite were also investigated. Fundamental understanding of the flotation chemistry for ancylite, calcite and strontianite was utilized to delineate the strategy of flotation chemistry for the materials from Bear Lodge. Magnetic separation combined with flotation was employed to beneficiate ancylite, and a preliminary evaluation was conducted as well. The end result shows the promising potential in the separation of ancylite by magnetic separation and froth flotation. This work was conducted within the Kroll Institute for Extractive Metallurgy (KIEM) and Critical Materials Institute (CMI). | |
dc.format.medium | born digital | |
dc.format.medium | masters theses | |
dc.language | English | |
dc.language.iso | eng | |
dc.publisher | Colorado School of Mines. Arthur Lakes Library | |
dc.relation.ispartof | 2015 - Mines Theses & Dissertations | |
dc.rights | Copyright of the original work is retained by the author. | |
dc.subject | ancylite | |
dc.subject | flotation | |
dc.subject | surface chemistry | |
dc.subject | wet high intensity magnetic separation | |
dc.title | Beneficiation of rare earth elements bearing ancylite | |
dc.type | Text | |
dc.contributor.committeemember | Taylor, Patrick R. | |
dc.contributor.committeemember | Spiller, D. Erik | |
dcterms.embargo.terms | 2017-01-05 | |
dcterms.embargo.expires | 2017-01-05 | |
thesis.degree.name | Master of Science (M.S.) | |
thesis.degree.level | Masters | |
thesis.degree.discipline | Metallurgical and Materials Engineering | |
thesis.degree.grantor | Colorado School of Mines | |
dc.rights.access | Embargo Expires: 01/05/2017 |