Cross flow cyclonic flotation column for coal and minerals beneficiation

Lai, Ralph W; Patton, Robert A

Title: Cross flow cyclonic flotation column for coal and minerals beneficiation

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Abstract

An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophillic tailings.

Inventors:

Lai, Ralph W ^[1]; Patton, Robert A ^[2]

Upper St. Clair, PA
Pittsburgh, PA

Issue Date:: 2000-01-01

Research Org.:: USDOE Pittsburgh Energy Technology Center (PETC), PA (United States)

OSTI Identifier:: 872972

Patent Number(s):: 6056125

Assignee:: U. S. Department of Energy (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03D - FLOTATION

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B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03D - FLOTATION
B03D1/082 - {of the froth product, e.g. washing}
B03D1/1418 - {using centrifugal forces}
B03D1/16 - with impellers
B03D1/245 - {Injecting gas through perforated or porous area}

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Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: flow; cyclonic; flotation; column; coal; minerals; beneficiation; apparatus; process; separation; pyritic; impurities; modified; froth; incorporates; helical; track; inner; wall; region; intermediate; top; base; standard; impeller; located; central; axis; generate; centrifugal; force; increasing; efficiency; particles; hydrophillic; tailings; flotation column; separation efficiency; centrifugal force; central axis; inner wall; froth flotation; /209/

Citation Formats


                    Lai, Ralph W, and Patton, Robert A. Cross flow cyclonic flotation column for coal and minerals beneficiation.  United States: N. p., 2000. 
        Web.

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                    Lai, Ralph W, & Patton, Robert A. Cross flow cyclonic flotation column for coal and minerals beneficiation.  United States.

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                    Lai, Ralph W, and Patton, Robert A. Sat .  
        "Cross flow cyclonic flotation column for coal and minerals beneficiation".  United States.  https://www.osti.gov/servlets/purl/872972.

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@article{osti_872972,

  title        = {Cross flow cyclonic flotation column for coal and minerals beneficiation},

  author       = {Lai, Ralph W and Patton, Robert A},

  abstractNote = {An apparatus and process for the separation of coal from pyritic impurities using a modified froth flotation system. The froth flotation column incorporates a helical track about the inner wall of the column in a region intermediate between the top and base of the column. A standard impeller located about the central axis of the column is used to generate a centrifugal force thereby increasing the separation efficiency of coal from the pyritic particles and hydrophillic tailings.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2000},

  month        = {1}

}

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