RECOVERY OF NICKEL AND COBALT FROM LATERITAS BY SULFATATION ASSISTED BY SONICATION

Dominican Republic Patent

APP PUB NO DO-P2014000155-A
SERIAL NO

2014000155

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Abstract

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Here a method is provided that allows the recovery of metal values from laterites by the action of sulfuric acid quite diluted in laterites carrying nickel and cobalt, at atmospheric pressure and near ambient temperature, assisted by ultrasonic treatment. With a concentration of acid in the range for example between about 25 and about 50% sulfuric acid, under atmospheric pressure, sonication, extracting the metallic values from suspended laterites is thus achieved at room temperature.

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Patent Owner(s)

Patent OwnerAddress
DUNDEE SUSTAINABLE TECHNOLOGIES INCCAMONTREAL QUEBEC H3A 3L6

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Inventor(s)

Inventor Name Address
LALANCETTE JEAN-MARC SHERBROOKE QUÉBEC J1L 1J4
DUBREUIL BERTRAND TROIS-RIVIÈRES QUÉBEC G9B 2A5
LEMIEUX DAVID THETFORD MINES QUÉBEC G6G 2J3

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