Procedure for the separation of nickel and Cobalt from ammoniacal Solutions and obtaining carbonate salts of nickel

摘要

This Invention relates to non-ferrous hydrometallurgy specifically with the treatment of the obtained solution of the Mineral Processing Technology of carbonate laterite by Ammonia process Known As Caron.There is not an efficient procedure for the separation of cobalt from ammoniacal Solutions by carbonate, due to the variety of amino Complex, difficult separation of the solution.The essence of the invention consists of mixed cationic ion exchange resin Purolite S - type 930 the solution obtained from the Caron process AMMONIUM CARBONATE in a Solution volume of 0.1 - 10.0 / resin volume, for a time between 0.15 - 4 hours, the Resin of the liquor is then separated and washed, then the Resin was washed with a solution desorbedora consists of a mixture of AMMONIUM SULFATE between 100 - 500 g / l Sulphuric Acid between 10 - and 90 g / l, a solution desorbedora / resin 0.5-10 Dur Before a time of 0.15 - 4 hours, thus directly with ni / CO ratios are larger than 500. The solution of Ammonium sulphate and Sulphuric Acid remnant can be recirculated back into the process of Desorption after adjustment of the concentrations of AMMONIUM SULFATE and sulfuric acid. The total Recovery of nickel from the Resin is 89.0 - 99.0%.