Solid material comminution or disintegration – Processes – With application of fluid or lubricant material
Patent
1996-07-03
1998-03-17
Pitts, Andrea L.
Solid material comminution or disintegration
Processes
With application of fluid or lubricant material
241 5, 241 2414, 241 2415, 241 2431, B02C 2318, B02C 2308
Patent
active
057277400
ABSTRACT:
A method of removing fractional components from earthen material, including processes for removing precious carbon jewels from soil, precious metals from low grade ores, lead pellets from contaminated soil, and free sulphur from coal, is initiated with a pulverizing of the earthen material bearing the fractional component to be removed therefrom. Subsequent process steps vary, but include the washing of the pulverized material and then removing the fractional component through electromagnetic extraction, chemical dissolution and sieving. Since no contaminate is added to the residue remaining after removal of the fractional component, the residue can be returned to the ground from which the original material was obtained without effecting any additional pollution to the ground or water.
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Campbell Willis R.
Robinson Forrest L.
Krolikowski Julie A.
Miller Larry W.
Pitts Andrea L.
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