Leaching performance of low grade zinc oxide ore in the system of NH3- (NH4)2SO4-H2O

DOI

10.2991/icseee-15.2016.65How to use a DOI?

Keywords

Zinc oxide ore; NH3-(NH4)2SO4-H2O system; ammonia leaching; leaching efficiency

Abstract

Leaching test on the oxidized zinc ore from Kashi, Xinjiang Autonomous Region is studied in the (NH4)2SO4-NH3-H2O system; Systematic studies are made to show the effects of various factors on the leaching rate of zinc. The optimum conditions for leaching is finally confirmed, i.e., the grinding fineness is 80% -74um, concentration of ammonium sulfate is 2mol/L, concentration of ammonia is 4mol/L, reaction temperature is 40℃, the ratio of liquid to solid is 4:1; stirring rate is 300rpm and leaching time is 3h. Ultimately, the leaching rate of Zn could reach more than 91%.

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  - Kaiwei Song
AU  - Jingjie Yuan
AU  - Peilun Shen
AU  - Shoukai Yan
AU  - Fei Li
AU  - Dianwen Liu
PY  - 2016/04
DA  - 2016/04
TI  - Leaching performance of low grade zinc oxide ore in the system of NH3- (NH4)2SO4-H2O
BT  - Proceedings of the 2015 4th International Conference on Sustainable Energy and Environmental Engineering
PB  - Atlantis Press
SP  - 398
EP  - 403
SN  - 2352-5401
UR  - https://doi.org/10.2991/icseee-15.2016.65
DO  - 10.2991/icseee-15.2016.65
ID  - Song2016/04
ER  -