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dc.contributor.advisorAnderson, Corby G.
dc.contributor.authorCui, Hao
dc.date.accessioned2016-01-06T17:38:49Z
dc.date.accessioned2022-02-03T12:52:58Z
dc.date.available2017-01-05T04:18:44Z
dc.date.available2022-02-03T12:52:58Z
dc.date.issued2015
dc.identifierT 7931
dc.identifier.urihttps://hdl.handle.net/11124/166684
dc.description2015 Fall.
dc.descriptionIncludes color illustrations, color map.
dc.descriptionIncludes bibliographical references.
dc.description.abstractThe 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.mediumborn digital
dc.format.mediummasters theses
dc.languageEnglish
dc.language.isoeng
dc.publisherColorado School of Mines. Arthur Lakes Library
dc.relation.ispartof2015 - Mines Theses & Dissertations
dc.rightsCopyright of the original work is retained by the author.
dc.subjectancylite
dc.subjectflotation
dc.subjectsurface chemistry
dc.subjectwet high intensity magnetic separation
dc.titleBeneficiation of rare earth elements bearing ancylite
dc.typeText
dc.contributor.committeememberTaylor, Patrick R.
dc.contributor.committeememberSpiller, D. Erik
dcterms.embargo.terms2017-01-05
dcterms.embargo.expires2017-01-05
thesis.degree.nameMaster of Science (M.S.)
thesis.degree.levelMasters
thesis.degree.disciplineMetallurgical and Materials Engineering
thesis.degree.grantorColorado School of Mines
dc.rights.accessEmbargo Expires: 01/05/2017


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