Extraction of zinc from sulfide ores (1 Viewer)

[steve001]

Hey,

i was wondering if anyone knew the chemical equation for the processes involved in the extraction of zinc from sulfide ores. The processes that i have are:
-zinc is extracted from sulfide ores by roasting the ore forming an oxide
-the oxide is then dissolved in sulfuric acid
-the metal is obtained by electrolysis

thanks, any help is greatly appreciated

 

[charlen]

[FONT=&quot]ZnS + O2 = Zn + SO2[/FONT]

 

[kwabon]

[FONT=&quot]ZnS + O2 = Zn + SO2[/FONT]

zinc oxide matey.

and then dont forget to balance as well, after changed the mistake.

(y)

 

[brenton1987]

-zinc is extracted from sulfide ores by roasting the ore forming an oxide

ZnS + ³/₂ O₂ --> ZnO + SO₂

-the oxide is then dissolved in sulfuric acid

ZnO + H₂SO₄ --> ZnSO₄ + H₂O

-the metal is obtained by electrolysis

Zn²⁺ + 2 e^- --> Zn

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There are two other processes:

ZnS + ³/₂ O₂ --> ZnO + SO₂
SO₂ + ¹/₂ O₂ --> SO₃
ZnO + SO₃ --> ZnSO₄
Zn²⁺ + 2 e^- --> Zn

The reduction of zinc oxide occurs in excess of 1000^o C, well above the boiling point of zinc metal. Zinc is formed as a gas and purified by distillation.
ZnS + ³/₂ O₂ --> ZnO + SO₂
ZnO + C --> Zn + CO
ZnO + CO --> Zn + CO₂