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

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:
 [1];  [2]
  1. Upper St. Clair, PA
  2. Pittsburgh, PA
Issue Date:
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
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.
Lai, Ralph W, & Patton, Robert A. Cross flow cyclonic flotation column for coal and minerals beneficiation. United States.
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.
@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}
}

Patent:

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