Compositions – Oxidative bleachant – oxidant containing – or generative
Patent
1998-05-01
2000-11-07
Simmons, David A.
Compositions
Oxidative bleachant, oxidant containing, or generative
25218621, C02F 172
Patent
active
061431958
ABSTRACT:
The present invention combine an alkaline adjuvant surfactant, and water, thereby creating a treatment mixture, for eliminating acid generation in sulfide bearing material. After determining a level of acidity of a sulfide bearing material, a user derives an alkaline mixture to level the of acidity of the sulfide bearing material. The alkaline mixture of the present invention comprises highly reactive calcium oxide and lower reactive calcium carbonate. The user then combines the alkaline mixture with an adjuvant surfactant and water to generate a treatment mixture. The treatment mixture is applied to the sulfide bearing material, thereby eliminating acid generation.
REFERENCES:
patent: 4018679 (1977-04-01), Bolsing
patent: 4756846 (1988-07-01), Matsuura et al.
patent: 5645821 (1997-07-01), Libin
Rich, Douglas H., "Lime Treatment of Coal Refuse at HPM A Continuing Success", West Virginia Dept. of Environmental Protection Acid Mine Drainage Seminar, Clarksburg, West Virginia, Apr. 1989.
Thomas C. Means and J. Michael Klise (editors), "Symposium Issue: Acid Rock Drainage", C & M Mining Law Monitor, Jan. 1996.
West Virginia Surface Mine Drainage Task Force and West Virginia Mining & Reclamation Association (sponsors), "Proceedings", Seventeenth Annual West Virginia Surface Mine Drainage Task Force Symposium, Apr. 2-3, 1996.
Hoey Betsey Morrison
Simmons David A.
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