Studies on the extraction of manganese from sea nodule residue as ferrosilicomanganese

Alex, T C and Godiwalla, K M and Kumar, Sanjay and Jana, R K and Rao, A S and Singh, Manjit and Premchand, (2006) Studies on the extraction of manganese from sea nodule residue as ferrosilicomanganese. Steel Research International, 77 (3). pp. 147-151.

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Most of the extraction processes developed for the polymetallic sea nodules concentrated mainly on the recovery of strategically important metals viz. Cu, Ni and Co. The residue generated in such processes is quite high enough to upset the environmental balance for industrial scale operation. The economics of the process too cannot be favourable if manganese in the residue is not recovered. In this study an attempt has been made to utilize this residue, containing appreciable amount of manganese (about 20%) for producing ferrosilicomanganese, an important ferroalloy primarily used for deoxidation in the steel industry, through smelting process. In order to have an alloy of standard grade, the residue is enriched in its manganese content, by blending it with ferromanganese slag. Bench scale studies indicate that it is possible to produce ferrosilicomanganese, of the grade required by the steel industry, by reduction smelting of the sea nodule residue with ferromanganese slag. Metal recovery, however, was less because of metal entrapment. Document Type: Article

Item Type:Article
Official URL/DOI:
Uncontrolled Keywords:Sea nodule; leach residue; smelting; ferromanganese slag; ferrosilicomanganese
Divisions:Metal Extraction and Forming
ID Code:3355
Deposited By:Sahu A K
Deposited On:23 Jul 2011 11:45
Last Modified:13 Dec 2011 15:15
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