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Dennis L. Hoe
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Broomfield, CO, US
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Patent Grant
Recovery of nickel and cobalt by controlled sulfuric acid leaching
Patent number
4,541,868
Issue date
Sep 17, 1985
California Nickel Corporation
E. Harris Lowenhaupt
C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...