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. 14 figs.
- Inventors:
- Issue Date:
- Research Org.:
- Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Org.:
- USDOE, Washington, DC (United States)
- OSTI Identifier:
- 672629
- Patent Number(s):
- 5814210
- Application Number:
- PAN: 8-641,778
- Assignee:
- Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (United States)
- DOE Contract Number:
- FG22-83PC60806
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 29 Sep 1998
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 01 COAL, LIGNITE, AND PEAT; COAL PREPARATION; FLOTATION; SEPARATION EQUIPMENT; DESIGN; OPERATION; BUBBLES; EFFICIENCY
Citation Formats
Yoon, R H, Adel, G T, and Luttrell, G 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, R H, Adel, G T, & Luttrell, G 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, R H, Adel, G T, and Luttrell, G H. Tue .
"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.
@article{osti_672629,
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, R H and Adel, G T and Luttrell, G 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. 14 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {9}
}
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