Leaching Mo and Ni by Direct Oxygen Pressure from Black Shale with any other only water

DOI

10.2991/icseee-15.2016.88How to use a DOI?

Keywords

Black Shale, Molybdenum and Nickel, Oxygen Pressure Water Leaching

Abstract

The hydrometallurgical process of leaching molybdenum and nickel from black shale without reagent was investigated. The extraction of Mo and Ni from molybdenum-nickel ore by oxygen pressure leaching, which exploit the characteristic of molybdenum-nickel minerals contain high concentration amorphous sulfide which has highly active, and make the most of easily oxide to sulfuric acid and sulfate at low temperature and excess oxygen presence of the amorphous sulfide. Under oxygen pressure conditions, considerable molybdenum and almost all the nickel were extracted into solution in the leaching process. The results show that with the leaching time for 3~4h, temperature at 150oC, liquid-to-solid ratio of 2mL•g-1, mineral granularity of 0.074mm, oxygen partial pressure of 0.4~0.5MPa without other reagent, molybdenum leaching percentage can be over 80% and nickel leaching percentage can be more than 97%. Furthermore, about 80% sulfur in the Mo-Ni ore has been transformed into sulfuric acid.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Zhi-Gan Deng
AU  - Chang Wei
AU  - Xing-Bin Li
AU  - Cun-Xiong Li
AU  - Gang Fan
PY  - 2016/04
DA  - 2016/04
TI  - Leaching Mo and Ni by Direct Oxygen Pressure from Black Shale with any other only water
BT  - Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 527
EP  - 532
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-15.2016.88
DO  - 10.2991/icseee-15.2016.88
ID  - Deng2016/04
ER  -