Method and apparatus for mining of ocean floors

Details Method and apparatus for mining of ocean floors Method and apparatus for mining of ocean floors

1988-02-16

1989-11-07

Novosad, Stephen J.

Mining or in situ disintegration of hard material

With separation of materials

Material mined or excavated underwater

37DIG8, E02F 700

Patent

active

048787116

ABSTRACT:
Suboceanic particulate solids containing useful metal values are recovered from ocean floors by extending a recovery tube from above an ocean surface to the ocean floor and confining a column of sea water therein, injecting a pressurized gas into the base of said tube, while separately contemporaneously injecting thereat an aqueous solution of at least one water-soluble, high molecular weight suspension enhancing polymer, whereby forming a diluted dispersion of particulate ocean floor solids and propelling same to the ocean surface, and there recovering said particulate solids from the dilute dispersion.

REFERENCES:
patent: 2132800 (1938-10-01), Payton
patent: 2756977 (1956-07-01), Temple
patent: 3208526 (1965-09-01), Patton et al.
patent: 3251768 (1966-05-01), Walker
patent: 3319715 (1967-05-01), Parks
2nd International Colloquium on the Exploitation of the Oceans, "Exploitation des Ressources Minieres Des Oceans avec le Procede De Pompage Par Air-Lift", J. P. Jacquemin, J. F. Lapray, 10-1974.

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