A preliminary investigation of microbubble flotation of fine coal

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dc.contributor.authorHalsey, Gregory S.en
dc.contributor.departmentMining and Minerals Engineeringen
dc.date.accessioned2019-10-10T19:11:41Zen
dc.date.available2019-10-10T19:11:41Zen
dc.date.issued1986en
dc.description.abstractAlthough froth flotation is generally recognized as the most viable means of cleaning fine coal, a loss in recovery rate and selectivity is encountered when attempting to apply the process to clean ultrafine coals. In this work, batch flotation tests were conducted on several Appalachian coals using microbubbles in a cylindro-conical flotation column. Results indicate that this technique shows improvements over the conventional technique using larger bubbles, when the coal is ultrafine. The improvement in recovery rate with the microbubbles is due to improved hydrodynamic conditions which are more conducive to bubble/particle collision, while the improvement in selectivity is due to the absence of turbulent wakes.en
dc.description.degreeM.S.en
dc.format.extentxiv, 126 leavesen
dc.format.mimetypeapplication/pdfen
dc.identifier.urihttp://hdl.handle.net/10919/94456en
dc.language.isoen_USen
dc.publisherVirginia Polytechnic Institute and State Universityen
dc.relation.isformatofOCLC# 16655924en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1986.H347en
dc.subject.lcshCoal ashen
dc.subject.lcshCoal washingen
dc.titleA preliminary investigation of microbubble flotation of fine coalen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineMining and Minerals Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameM.S.en
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