Method of removing carbon from fly ash
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 30, 2000
Grant Date -
N/A
app pub date -
Jul 13, 1999
filing date -
Jul 13, 1998
priority date (Note) -
In Force
status (Latency Note)
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Abstract
A froth flotation method is provided for removing carbon from fly ash which utilizes an environmental friendly conditioning agent. The conditioning agent preferably comprises a biodegradable oil which is added to a slurry containing raw fly ash and water. The conditioning agent renders the carbon in the fly ash hydrophobic such that upon aeration of the slurry, air bubbles attach to the carbon particles and carry them to the surface of the slurry in the form of a froth, such that the carbon may be removed.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
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MINERAL RESOURCE TECHNOLOGIES INC | 840 GESSNER SUITE 1400 HOUSTON TX 77024 |
International Classification(s)

- 1999 Application Filing Year
- B03D Class
- 26 Applications Filed
- 7 Patents Issued To-Date
- 26.93 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hwang, Jiann-Yang | Houghton, MI | 22 | 417 |
# of filed Patents : 22 Total Citations : 417 | |||
Styron, Robert William | Marietta, GA | 9 | 256 |
# of filed Patents : 9 Total Citations : 256 |
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Patent Citation Ranking
- 8 Citation Count
- B03D Class
- 12.82 % this patent is cited more than
- 25 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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