Iron in leaching liquid must be removed in the nickel extraction process by acid leaching from lateritic nickel ore.Ammonium jarosite is used to remove iron in the test,ammonium carbonate is taken as the iron precipitating agent and pH value regulator,when the temperature is 85 ℃,the iron removal time is 5 h,ammonium carbonate is added into in three times,the total amount of ammonium carbonate is 15 g/L,the iron removal rate can reach to 97.09％,the nickel loss ratio can keep in around 2％.
关键词
余酸中和/黄铵铁钒法/铁沉淀剂/沉铁温度及时间
Key words
residual acid neutralization/ammonium jarosite method/iron precipitating agent/iron precipitation temperature and time
维普
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