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- W2372935596 abstract "Optimum conditions and economic analysis on blast furnace gas ash dezincing by using ammonia leach process were investigated by experimental research. Results showed that the process has high leaching rate and little environmental impacts. The optimal conditions for leaching process was L/S 4∶1,NH3/NH4 +2∶1,NH35 mol/L and leaching time 3 hours. The optimal conditions for purification process were that the consumption of zinc powder l.5 g/L,clarification time 2.5 hours,proper steamed ammonia temperature 90 ℃,and the zinc oxide powder with purity 96.03% was prepared after calcination at 500 ℃ for 1 hour. The equipments investment was about 1 million yuan,and production cost was about ten thousand yuan for dealing with 7 ton gas ash every day. Blast furnace gas ash dezincing will help to solve production problem due to zinc enrichment,which has indirect economic benefits. Further research is needed such as the choice of process parameters according to chemical composition of gas ash,sealing of production equipment and quality of products." @default.
- W2372935596 created "2016-06-24" @default.
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- W2372935596 date "2014-01-01" @default.
- W2372935596 modified "2023-09-23" @default.
- W2372935596 title "Dezincing Process Analysis on Blast Furnace Gas Ash by Ammonia Leaching" @default.
- W2372935596 hasPublicationYear "2014" @default.
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