C - Chemistry – Metallurgy – 22 – B
Patent
C - Chemistry, Metallurgy
22
B
53/369, 23/412
C22B 3/00 (2006.01) C22B 3/04 (2006.01) C22B 60/02 (2006.01)
Patent
CA 1117771
ABSTRACT OF THE DISCLOSURE A process for the continuous leaching of ores and an apparatus for practicing this continuous leaching of ores and an disclosed. According to this process, a plurality of unit layer composed of a pulverized uranium ore or other ore are continuously laminated while a minimum necessary amount of an acid, alkali or organic solvent (hereinafter referred to as "solvent") is uniformly sprinkled on the flat surfaces of these unit layers. In the state where the concentration of the solvent mixed into the ore is maintained at a high level, the heat generated by exothermic reaction caused by contact among the solvent, ore and water is effectively stored and used for thermal- ly curing the ore. According to this process, the speed of ex- traction of the intended metal component can be increased, the leaching time shortened and the filtration characteristics improved whereby a highly concentrated pregnant liquor can be recover d at a high efficiency.
311055
Hasegawa Shoichi
Kameda Mitsuo
Yamashita Thoru
International Resources Company Ltd.
Swabey Ogilvy Renault
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