Polymetallic Nodules Programme

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Polymetallic Nodules Programme

India has exploration contract with the International Seabed Authority in 75,000 sq.km area in the Central Indian Ocean. Atotal area of 7900sq. km was identified for potential mine site based on detailed chemical analysis, interpretation of the collected samples into the Central Indian Ocean. A 3-Dimensional hydrodynamic sediment plume model was developed as a part of Environmental Impact Assessment Studies. An integrated mining system consisting of crawler, collector and crusher and a Remotely Operable Artificial nodule laying system were developed and tested at 512 m water depth. The research carried out in the field of extractive metallurgy include, viz. optimization of direct smelting on 4 kg scale, optimization of reduction roasting with the Talcher coal as redundant, preparation of Electrolytic Manganese Dioxide (EMD) from manganese cake, Ammonia Recovery from Ammonium Sulphate by electrochemical splitting, High Pressure Acid Leaching of Manganese Nodule, etc. India has been elected as Member of Council in investor’s category of the International Seabed Authority (ISA) for a period of 5 years beginning 2009.

Last Updated On 05/14/2014 - 16:43
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