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- W2357319996 abstract "In view of shortcomings in current bismuth-molybdenum ores' floating and smelting technologies,such as complex operation in ore-dressing, large consumption of floating reagents and incomplete separation of bismuth and molybdenum, a low-temperature smelting on bismuth-molybdenum ores is proposed so that the crude bismuth is produced after low-temperature smelting, and molybdenum comes into the solution in form of molybdate. Then molybdenum trioxide can be recycled which is produced by hydrothermal method. On the basis of thermodynamic analysis, effects of molten salt composition, salt amount, smelting temperature, reaction composition and excessive multiples of active carbon on the molten salt smelting of bismuth-molybdenum ores are investigated. The optimum conditions is determined as follows: w(NaCl) /w(NaCl+Na2CO3)=20 %, smelting temperature 850 ℃, w(NaCl+Na2CO3) /w(bismuth-molybdenum ores)=2, reaction time 1 h, w(activated carbon) /w(theory)=2. Two comprehensive tests under above-mentioned optimum conditions are conducted to find out that the direct recovery rate of bismuth is 98.12 % and 96.59 %,and the average grade of crude bismuth is96.62 % and 98.87 %." @default.
- W2357319996 created "2016-06-24" @default.
- W2357319996 creator A5058123546 @default.
- W2357319996 date "2014-01-01" @default.
- W2357319996 modified "2023-09-23" @default.
- W2357319996 title "Low-temperature smelting process of a bismuth-molybdenum ore" @default.
- W2357319996 hasPublicationYear "2014" @default.
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