Process and apparatus for separating fine particles by microbubble 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 particles, especially coal, so as to produce a high purity and large recovery efficiently. This is accomplished through the use of a high aspect ratio flotation column, microbubbles, and a countercurrent use of wash water to gently wash the froth. Also, disclosed are unique processes and apparatus for generating microbubbles for flotation in a high efficient and inexpensive manner using either a porous tube or an in-line static generator.
- Inventors:
-
- Blacksburg, VA
- Issue Date:
- Research Org.:
- Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
- OSTI Identifier:
- 867663
- Patent Number(s):
- 4981582
- Assignee:
- Virginia Tech Intellectual Properties, Inc. (Blacksburg, VA)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01F - MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03D - FLOTATION
- DOE Contract Number:
- FG22-83PC60806
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- process; apparatus; separating; fine; particles; microbubble; flotation; generation; microbubbles; method; disclosed; separation; especially; coal; produce; purity; recovery; efficiently; accomplished; aspect; ratio; column; countercurrent; wash; water; gently; froth; unique; processes; generating; efficient; inexpensive; manner; porous; tube; in-line; static; generator; especially coal; flotation column; microbubble flotation; fine particles; aspect ratio; porous tube; separating fine; fine particle; unique processes; wash water; inexpensive manner; in-line static; generating microbubbles; gently wash; flotation separation; static generator; /209/210/261/
Citation Formats
Yoon, Roe-Hoan, Adel, Gregory T, and Luttrell, Gerald H. Process and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubbles. United States: N. p., 1991.
Web.
Yoon, Roe-Hoan, Adel, Gregory T, & Luttrell, Gerald H. Process and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubbles. United States.
Yoon, Roe-Hoan, Adel, Gregory T, and Luttrell, Gerald H. Tue .
"Process and apparatus for separating fine particles by microbubble flotation together with a process and apparatus for generation of microbubbles". United States. https://www.osti.gov/servlets/purl/867663.
@article{osti_867663,
title = {Process and apparatus for separating fine particles by microbubble 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 particles, especially coal, so as to produce a high purity and large recovery efficiently. This is accomplished through the use of a high aspect ratio flotation column, microbubbles, and a countercurrent use of wash water to gently wash the froth. Also, disclosed are unique processes and apparatus for generating microbubbles for flotation in a high efficient and inexpensive manner using either a porous tube or an in-line static generator.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 1991},
month = {Tue Jan 01 00:00:00 EST 1991}
}
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