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
Patent
·
OSTI ID:672629
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.
- Research Organization:
- Virginia Polytechnic Institute and State University
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-83PC60806
- Assignee:
- Virginia Tech Intellectual Properties, Inc., Blacksburg, VA (United States)
- Patent Number(s):
- US 5,814,210/A/
- Application Number:
- PAN: 8-641,778
- OSTI ID:
- 672629
- Country of Publication:
- United States
- Language:
- English
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