Kumar, Vinay and Pandey , B D and Bagchi, D (1991) Application of LIX 84 for Separation of Copper, Nickel and Cobalt in Ammoniacal Leaching of Ocean Nodules. Materials Transactions, Jim, 32 (2). pp. 157-163.
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The ammoniacal leaching is apparently considered an attractive approach to process polymetallic sea nodules wherein copper , nickel and cobalt are solubilised forming the ammine complexes . To separate these metals, LIX 84, an oxime extractint , was tried from the synthetic solutions . The loading capacity of this solvent for individual metal and ammonia extraction was determined and compared with that of LIX 64N. Preferential extraction of copper over nickel from a mixed aqueous solution was observed . The kinetic studies for the extraction of metals were undertaken to arrive at the retention time appropriate for this operation . Before metal stripping, the mode of ammonia scrubbing from the organic was worked out using acid or a comhination of ammonia -dilute acid as the reagents . The coextraction of nickel and copper and their selective stripping were considered to explore the possibility of separating Cu, Ni and Co from ammonia- ammonium carbonate medium . The separation of these metals from the ammoniacal leach liquor of sea nodules was also attempted.
|Uncontrolled Keywords:||Polymetallic sea nodules, roast reduction|
|Divisions:||Metal Extraction and Forming|
|Deposited By:||Sahu A K|
|Deposited On:||10 Mar 2011 09:37|
|Last Modified:||03 Jan 2012 12:52|
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