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- W2364357487 abstract "The leaching process of cobalt from low grade cobalt ore in our country by using sulfuric acid, hydrochloric acid, and citric acid hydrofluoride as leaching reagents is studied The cobalt is in carbonate, ferric oxide and clay minerals The optimum leaching conditions for sulfuric acid system is acid concentration 20%, leaching temperature 70℃, retention time 8h, and ratio of solid to liquid 1∶5; for hydrochloric acid is acid concentration 10%, leaching temperature 70℃, retention time 8h, and ratio of solid to liquid 1∶5, salt addition 5%; and for citric acid fluoride is acid concentration 12 5g/L, leaching temperature 15℃, retention time 4h, and ratio of solid to liquid 1∶10, ammonium fluoride addition 37 5g/L The results show that the leaching rate of cobalt is up to 90% under optimum leaching conditions in three leaching systems The citric acid fluoride leaching system has advantages of saving time, low temperature and less pollution" @default.
- W2364357487 created "2016-06-24" @default.
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- W2364357487 date "2001-01-01" @default.
- W2364357487 modified "2023-09-25" @default.
- W2364357487 title "COMPARISON OF THREE LEACHING SYSTEMS FOR LOW GRADE COBALT ORE" @default.
- W2364357487 hasPublicationYear "2001" @default.
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