Saha, A K (1999) Chemical upgrading of deep-sea manganese nodules. NML Technical Journal, 40 (4). pp. 177-182.
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Studies were carried out on deep-sea manganese nodules to enrich nickel, copper and cobalt values in the pre-concentrate using alkali pressure-leaching route. The different process parameters studied involve alkali strength, leaching time and temperature, oxygen pressure and slurry pulp density. This process is capable of producing a pre-concentrate which is 60% of the dry nodule's weight analysing 1.5% nickel, 1.35% Cu and 0.15% cobalt recovering more than 99% nickel and 100% copper and cobalt in the pre-concentrate.
|Uncontrolled Keywords:||Manganiferrous nodules; Segregation roasting; Preconcentrate; Oxyhydroxides; Flotation; Thermal upgrading|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Mr. G Shailendra Kumar|
|Deposited On:||28 Sep 2010 16:29|
|Last Modified:||18 Oct 2011 10:16|
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