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| Application of spray iron precipitation process in open circuit F- and Al3+ in zinc hydrometallurgy system |
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Received:December 09, 2020
Revised:February 02, 2021
Accepted:February 07, 2021
Published Online:May 13, 2021
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| DOI： |
| KeyWord:Zinc;hydrometallurgy Spray;sinking iron;Defluorination |
| Author | Institution |
| wang wei |
anhui |
| wang jiuchu |
anhui |
| xx |
xx |
| xx |
xx |
| wuzhiyong |
anhui |
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| Abstract: |
| This paper introduces the causes and negative effects of F-, Al3+ accumulation in zinc hydrometallurgy system with "High temperature and high acid——Low pollution alum precipitation". In production, spray iron precipitation process is adopted. Through intermittent operation, F-、 Al3 + in the system are opened while iron is precipitated. Production practice shows that adding Al3+ in zinc hydrometallurgy system can stabilize fluorine content in electrolyte and improve stripping rate of cathode zinc; spray iron precipitation process is used to assist F -, Al3 + in open circuit system to avoid the negative impact of high-level balance of impurities in the system on production. |
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