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- W2367853635 abstract "A new green process of low-temperature,low discharge of carbon dioxide,no emission of sulfur oxide,clean and environment friendly smelting of secondary lead was proposed.In the process,with leadbearing secondary zinc oxide dusts as sulfur-fixing agent and coke powders as reducing agent,spent leadacid battery colloid sludge was reduced into crude lead and zinc was recovered as standard or marketable zinc sulfide concentrates in the molten salt of Na2CO3 at 800～900℃.The effects of smelting temperature,dosage of sodium carbonate,zinc oxide and coke powders on lead recovery and sulfur-fixing rate were investigated based on thermodynamic analysis.The results show that direct recovery and total recovery of lead is 96.64% and 98.06% respectively and sulfur-fixing rate is 94.70% under the optimum conditions including mass ratio of sodium carbonate and solid of 2.84,dosage of zinc oxide of 1.1times of theoretical value,mass ratio of coke powders and colloid sludge of 16%,and temperature of 880℃." @default.
- W2367853635 created "2016-06-24" @default.
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- W2367853635 date "2013-01-01" @default.
- W2367853635 modified "2023-09-25" @default.
- W2367853635 title "A Clean and Green Process of Low-Temperature for Smelting of Secondary Lead" @default.
- W2367853635 hasPublicationYear "2013" @default.
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