HYDROMETALLURGICAL NICKEL AND COBALT PRODUCTION FROM LATERITIC ORES: OPTIMIZATION AND COMPARISON OF ATMOSPHERIC PRESSURE LEACHING AND PUG-ROAST-LEACHING PROCESSES

HYDROMETALLURGICAL NICKEL AND COBALT PRODUCTION

Authors

  • Serkan Baslayici Istanbul Medipol University
  • Ozan Coban Gedis University
  • Mehmet Bugdayci Yalova University Chemical Engineering Dept. 77200 Yalova/Turkey
  • Mahmut Ercan Acma Istanbul Technical University Metallurgy and Material Engineering Dept. 34469 Istabul/Turkey

DOI:

https://doi.org/10.36547/ams.27.1.740

Keywords:

Nickel, Cobalt, Hydrometallurgy, Pug-Roast-Leaching, Atmospheric Pressure

Abstract

Corresponding to the technological developments, production and consumption of nickel have increased greatly over time due to its unique mechanical and chemical properties. Therefore, the production of nickel will always keep its importance. The availability of laterite ores, which are oxide type ores, is 86% of the nickel reserves on the Earth, and the processes used in the production of nickel from sulfide type ores have negative environmental effects. Therefore, recovery of nickel from lateritic ores has become increasingly important in recent years. In this study, the aim was to determine the optimum parameters of nickel and cobalt production from limonite type lateritic nickel ores, which were taken from Manisa Caldag region of Turkey, using atmospheric pressure sulfuric acid leaching and pug-roast-leach process. When the results obtained in these processes were compared, it was found that the Ni leaching efficiency is nearly 8% higher and iron leaching efficiency (contamination) is nearly 4% lower in the pug-roast-leach process. Furthermore, the pug-roast-leach process was completed in 33% lower time compared to the atmospheric pressure sulfuric acid leaching process.

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Published

2021-02-25

How to Cite

Baslayici, S., Coban, O., Bugdayci, M., & Acma, M. E. (2021). HYDROMETALLURGICAL NICKEL AND COBALT PRODUCTION FROM LATERITIC ORES: OPTIMIZATION AND COMPARISON OF ATMOSPHERIC PRESSURE LEACHING AND PUG-ROAST-LEACHING PROCESSES: HYDROMETALLURGICAL NICKEL AND COBALT PRODUCTION. Acta Metallurgica Slovaca, 27(1), 17-22. https://doi.org/10.36547/ams.27.1.740
Received 2020-11-01
Accepted 2021-01-01
Published 2021-02-25