S. Bhattacharjee, K. K. Gupta
A two-stage selective precipitation technique was developed for the separation of iron, nickel, and cobalt from sulphated leach liquor of nickeliferous lateritic oxide ore obtained from Sukinda Valley, Orissa, India. In the first stage of precipitation, solid CaCO3 is added to the sulphated solution at 90 to 95°C till the pH is adjusted in the range of 2.2 to 2.5. Most of the iron is precipitated out along with CaSO4. In the second stage, the residual iron and cobalt are separated from nickel by selective oxidation of cobalt. Bleaching powder and sodium oxychloride were separately used for this purpose. About 80 to 85% of the iron may be precipitated in the first stage, demonstrating the efficacy of the method. This technique provides a practical approach to recover valuable minerals while minimizing environmental impact.
@article{7361f9ea-de93-4c63-aae3-6a2abbb3bcb8,
title={Separation of Iron, Nickel, and Cobalt from Sulphated Leach Liquor of Low Nickel Lateritic Oxide Ore},
author={S. Bhattacharjee and K. K. Gupta},
year={2005},
language={en}
}TY - JOUR TI - Separation of Iron, Nickel, and Cobalt from Sulphated Leach Liquor of Low Nickel Lateritic Oxide Ore AU - S. Bhattacharjee AU - K. K. Gupta PY - 2005 LA - en ER -
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