Mining or in situ disintegration of hard material – With separation of materials – Material mined or excavated underwater
Patent
1990-03-16
1995-07-11
Britts, Ramon S.
Mining or in situ disintegration of hard material
With separation of materials
Material mined or excavated underwater
299 5, 423 27, 423DIG4, E21C 4500, C22B 304
Patent
active
054314836
ABSTRACT:
Oceanographic mining uses a flexible cover draped over a submarine ore-bearing stratum. The cover serves as a blanket-like structure for application of a leaching substance and isolation of the leachate and stratum from the surrounding water. The leachate infiltrates the stratum and becomes pregnant with intended materials. The leaching solution is subsequently pumped to the surface. The ores are separated from the pregnant leaching solution, enabling the solution to be used again. The cover supports and arranges anchor and sealing tubes and leachate and pregnant liquor tubes. Pumps are mounted on a platform connected to the cover. The cover is deployed by sinking parallel coils and filling peripheral tubes to uncoil and anchor the cover on a sea bed. One cover is spread by tube and is sunk in a controlled manner.
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Bagnell David J.
Britts Ramon S.
Creighton Wray James
University of Hawai'i
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