PROBLEM TO BE SOLVED: To provide a valuable metal recovering method in which a vein stone part is removed and the high recovery percentage can be obtained. ;SOLUTION: A cobalt rich crust is pulverized, and a magnetic ore containing a valuable metal is obtained using a high gradient magnetic ore separator. The cobalt rich crust is pulverized using a regular crusher and a regular mill etc. and ground into about 100 μm in 80% passage grain size, and then the slurry is formed by regulating the pulp concentration to be about 10%. Then the pulp is preferably fed to the high gradient magnetic ore separator, the magnetic separation is applied with the intensity of the magnetic field set at 4.6 kOe, the magnetic ore is obtained as a product containing the valuable metal, and a non-magnetic ore is obtained as a vein stone part. Cobalt and nickel which are valuable metals can be recovered by about 90% and about 80%, respectively.;COPYRIGHT: (C)2000,JPO
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