Study on Roasting of Pangang Converter Vanadium Slag with Soda in Laboratory
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摘要: 在实验室条件下,研究了转炉钒渣在焙烧过程中的碱比、返渣比、焙烧温度、焙烧时间等对钒转浸率的影响。试验结果表明,控制碱比为3.4,返渣比为2∶3,焙烧温度820℃,焙烧时间120 min,可以使钒转浸率达到90%,残渣中的TV含量达到0.6%左右,浸出液澄清透明。Abstract: Under laboratory conditions,the main effect factors of soluble vanadium recovery from converter vanadium slag was investigated.The main factors included soda-vanadium-ratio,slag-residue-ratio,maximum roasting temperature,keep time at maximum roasting temperature.The results showed that in the conditions of 3.4 soda-vanadium-ratio,2∶ 3 slag-residue-ratio,820 ℃ roasting temperature,120 min roasting time,the soluble vanadium recovery rates up to 90% was obtained,the TV content in the dry water leached residue was down to 0.6%,the leaching solution was clear.
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Key words:
- vanadium slag /
- roasting with sodium /
- soluble vanadium recovery
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