| 改性含钛高炉渣中铁、钒和钛的回收 |
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| 引用本文： | 韩吉庆,张晶,张加豪,陈晓,张力,涂赣峰.改性含钛高炉渣中铁、钒和钛的回收[J].中国有色金属学会会刊,2022,32(1):333-344. |
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| 作者姓名： | 韩吉庆 张晶 张加豪 陈晓 张力 涂赣峰 |
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| 作者单位： | 东北大学冶金学院;东北大学材料科学与工程学院 |
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| 基金项目： | financial support from the National Science and Technology Support Program of China(No.2015BAB18B00)。 |
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| 摘 要： | 提出两段氧化—碱浸—酸浸工艺来回收改性含钛高炉渣中的铁、钒和钛.较佳的提铁实验条件为一段氧化时间40 s和保温时间8 min,铁的回收率为89.93％.较佳的提钒实验条件为总氧化时间126 s、NaOH浓度4.0 mol/L、浸出温度95℃、浸出时间90 min和碱浸循环次数4,钒的浸出率为92.13％.较佳的提钛实验...
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| 关 键 词： | 含钛高炉渣 氧化 改性 浸出 人造金红石 生铁 |
| 收稿时间： | 20 December 2020 |
Recovery of Fe,V,and Ti in modified Ti-bearing blast furnace slag |
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| Ji-qing HAN,Jing ZHANG,Jia-hao ZHANG,Xiao CHEN,Li ZHANG,Gan-feng TU.Recovery of Fe,V,and Ti in modified Ti-bearing blast furnace slag[J].Transactions of Nonferrous Metals Society of China,2022,32(1):333-344. |
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| Authors: | Ji-qing HAN Jing ZHANG Jia-hao ZHANG Xiao CHEN Li ZHANG Gan-feng TU |
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| Affiliation: | (School of Metallurgy,Northeastern University,Shenyang 110819,China;School of Materials Science and Engineering,Northeastern University,Shenyang 110819,China) |
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| Abstract: | A two-stage oxidation—alkali leaching—acid leaching method was proposed to recovery Fe, V, and Ti in modified Ti-bearing blast furnace slag. The optimal experiment conditions of iron extraction were one-stage oxidation time 40 s and holding time 8 min. The recovery rate of iron was 89.93%. The optimum experiment conditions of vanadium extraction were total oxidation time of 126 s, NaOH concentration of 4.0 mol/L, leaching temperature of 95 °C, leaching time of 90 min, and the number of cycle was 4. The leaching rate of vanadium was 92.13%. The optimal experiment conditions of titanium extraction were HCl concentration of 4.5 mol/L, leaching temperature of 75 °C, and leaching time of 90 min. The TiO2 content of synthetic rutile was 98.61%. |
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| Keywords: | Ti-bearing blast furnace slag oxidation modification leaching synthetic rutile pig iron |
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