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ACID LEACHING ZINC AND INDIUM WITH REDUCTION FERRIC SIMULTANEOUSLY FROM MARMATITE AND HIGH-IRON NEUTRAL LEACHING RESIDUE

Zhigan Deng, Fan Zhang

2015enzincindiumacid leachingferric reductionmarmatiteleachinghydrometallurgy

Abstract

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Marmatite is an important resource of zinc, which exists in forms of high iron and high indium. This study aimed to investigate the simultaneous leaching of zinc and indium from neutral leach residue mixed with zinc concentrate containing these elements. The methodology involved testing various conditions, including a mass ratio of neutral residue to zinc concentrate of 1:0.25, a particle size of 74-58 µm, an initial sulfuric acid concentration of 150 g/L, a liquid to solid ratio of 8 L/kg, a temperature of 90°C, and a reaction time of 4 hours. The results showed that under these conditions, the leaching efficiency for both zinc and indium exceeded 95%, with nearly 90% of the iron in the solution being reduced from ferric to ferrous state. This process not only effectively extracted zinc and indium but also simplified the traditional reduction process required post-leaching. Hence, the method proved to be efficient and viable for the recovery of these valuable metals from high-iron neutral leach residues.

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Cite This Work

@article{41600829-30fb-4b43-b808-a2775abc2afb,
  title={ACID LEACHING ZINC AND INDIUM WITH REDUCTION FERRIC SIMULTANEOUSLY FROM MARMATITE AND HIGH-IRON NEUTRAL LEACHING RESIDUE},
  author={Zhigan Deng and Fan Zhang},
  year={2015},
  language={en}
}
TY  - JOUR
TI  - ACID LEACHING ZINC AND INDIUM WITH REDUCTION FERRIC SIMULTANEOUSLY FROM MARMATITE AND HIGH-IRON NEUTRAL LEACHING RESIDUE
AU  - Zhigan Deng
AU  - Fan Zhang
PY  - 2015
LA  - en
ER  -

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