Reduction of Manganese sea nodules with noncoking coal

Saha, A K and Khan, Z H and Akerkar, D D (1993) Reduction of Manganese sea nodules with noncoking coal. Transactions of the indian institute of metals, 46 (2). pp. 63-69.

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Abstract

Process feasibility studies have been initiated to determine the possibilities of extraction of nickel, copper and cobalt from manganese sea nodules by coal reduction followed by ammoniacal leaching route. High volatile non-coking coal has been found to be an effective reductant for selective reduction of oxides of manganese sea nodules. The aqueous ammonia-ammonium carbonate leaching of the reduced sea nodules resulted in over 93.0%, 92.0% and 65.0% recovery of nickel, copper and cobalt respectively as complex ammines, while rejecting iron and manganese in the residue. Effect of various parameters for roasting and leaching in extraction of nickel, copper and cobalt from manganese sea nodules was studies and is reported in this paper.

Item Type:Article
Official URL/DOI:http://www.nmlindia.org
Uncontrolled Keywords:Noncoking Coal
Divisions:Metal Extraction and Forming
ID Code:951
Deposited By:Sahu A K
Deposited On:10 Jun 2010 10:55
Last Modified:17 Feb 2012 16:12
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