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Title: Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles

Abstract

An apparatus is disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal, and minerals so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, microbubbles, recycling of the flotation pulp, and countercurrent wash water to gently wash the froth. Also disclosed are unique processes and apparatus for generating microbubbles for flotation in a highly efficient and inexpensive manner using either a porous tube or in-line static generators. 14 figs.

Inventors:
; ;
Issue Date:
Research Org.:
Virginia Polytechnic Institute and State University
OSTI Identifier:
27694
Patent Number(s):
5,397,001
Application Number:
PAN: 7-982,890
Assignee:
Virginia Polytechnic Inst. and State Univ., Blacksburg, VA (United States); Virginia Tech Intellectual Property, Inc., Blacksburg, VA (United States)
DOE Contract Number:  
FG22-83PC60806
Resource Type:
Patent
Resource Relation:
Other Information: PBD: 14 Mar 1995
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; SEPARATION EQUIPMENT; DESIGN; COAL; FLOTATION; DEASHING; COAL PREPARATION; PARTICLE SIZE; BUBBLES; OPERATION

Citation Formats

Yoon, R H, Adel, G T, and Luttrell, G H. Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles. United States: N. p., 1995. Web.
Yoon, R H, Adel, G T, & Luttrell, G H. Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles. United States.
Yoon, R H, Adel, G T, and Luttrell, G H. Tue . "Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles". United States.
@article{osti_27694,
title = {Apparatus for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles},
author = {Yoon, R H and Adel, G T and Luttrell, G H},
abstractNote = {An apparatus is disclosed for the microbubble flotation separation of very fine and coarse particles, especially coal, and minerals so as to produce high purity and high recovery efficiency. This is accomplished through the use of a flotation column, microbubbles, recycling of the flotation pulp, and countercurrent wash water to gently wash the froth. Also disclosed are unique processes and apparatus for generating microbubbles for flotation in a highly efficient and inexpensive manner using either a porous tube or in-line static generators. 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1995},
month = {3}
}