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2 Aug 2009, 11:39 AM
| #1 (permalink) |
| Junior Member HSC: 2009 Gender: Male
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1 Nov 2009, 12:32 PM  | Extraction of zinc from sulfide ores You can hide this advertisement by registering. 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 |
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7 Oct 2009, 8:51 PM
| #3 (permalink) | |
| Executive Member  HSC: 2009 Gender: Male Location: right behind you, mate
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7 Nov 2009, 5:40 PM | Re: Extraction of zinc from sulfide ores Quote:
and then dont forget to balance as well, after changed the mistake. (y)
__________________ 08 Mathematics Studies of Religion 09 Mathematics ext 2 Physics Chemistry Advanced English ATAR: hopefully 97 + GOOD LUCK!!  | |
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7 Oct 2009, 9:40 PM
| #4 (permalink) | |||
| Senior Member HSC: 2005 Gender: Male Location: Newcastle
Join Date: Jun 2004
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Yesterday, 11:11 PM | Re: Extraction of zinc from sulfide ores Quote:
Quote:
Quote:
--- 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 1000o 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 | |||
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