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

Abstract

A method and apparatus are 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.

Inventors:
 [1];  [1];  [1]
  1. Blacksburg, VA
Publication Date:
Research Org.:
Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
OSTI Identifier:
871864
Patent Number(s):
US 5814210
Assignee:
Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
DOE Contract Number:  
FG22-83PC60806
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
apparatus; process; separation; hydrophobic; hydrophilic; particles; microbubble; column; flotation; generation; microbubbles; method; disclosed; fine; coarse; especially; coal; minerals; produce; purity; recovery; efficiency; accomplished; recycling; pulp; countercurrent; wash; water; gently; froth; unique; processes; generating; highly; efficient; inexpensive; manner; porous; tube; in-line; static; generators; recovery efficiency; coarse particle; coarse particles; especially coal; flotation column; microbubble flotation; highly efficient; porous tube; microbubble column; static generators; column flotation; unique processes; wash water; inexpensive manner; in-line static; generating microbubbles; gently wash; flotation separation; flotation pulp; countercurrent wash; hydrophilic particles; static generator; bubble column; /209/261/

Citation Formats

Yoon, Roe-Hoan, Adel, Gregory T, and Luttrell, Gerald H. Apparatus and process 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., 1998. Web.
Yoon, Roe-Hoan, Adel, Gregory T, & Luttrell, Gerald H. Apparatus and process 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, Roe-Hoan, Adel, Gregory T, and Luttrell, Gerald H. Thu . "Apparatus and process for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles". United States. https://www.osti.gov/servlets/purl/871864.
@article{osti_871864,
title = {Apparatus and process for the separation of hydrophobic and hydrophilic particles using microbubble column flotation together with a process and apparatus for generation of microbubbles},
author = {Yoon, Roe-Hoan and Adel, Gregory T and Luttrell, Gerald H},
abstractNote = {A method and apparatus are 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Patent:

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