Effect of aging conditions on the leaching of mechanically activated pyrite and sphalerite

Metallurgical and Materials Transactions | October 1, 2003| | Copyright

The leaching of mechanically activated pyrite and sphalerite exposed to nitrogen (99.999 vol pet) or air at ambient temperature or 573 K was investigated. The results indicate that at the same leaching time, the iron-leaching ratio of mechanically activated pyrite or sphalerite aged in nitrogen at both ambient temperature and 573 K decreases slightly with increasing aging time and remains constant after a certain aging period. The iron-leaching ratio of mechanically activated pyrite exposed to ambient air varies with the exposure period. But, at the same leaching time, the zinc-leaching ratio ...

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