Direct Acid Leaching of Vanadium from Stone Coal
Direct Acid Leaching of Vanadium from Stone Coal
复制标题
石煤直接酸浸提钒
DOI：
10.1515/htmp-2016-0055
复制
发表时间：
2017-09
影响因子：
1.5
通讯作者：
Cao Yaohua
中科院分区：
文献类型：
--
作者：
Zhang Bo;Gao Zhaoguo;Liu Hongzhao;Wang Wei;Cao Yaohua
摘要为提高石煤中钒的浸出率，对石煤直接酸浸工艺条件进行了优化。通过正交试验和单因素试验，研究了直接酸浸各影响因素对钒浸出率的影响。结果表明，在CaF 2用量为5 mass%，H2SO 4用量为40 mass%，浸出温度为95 °C，浸出时间为10 h的最佳工艺条件下，钒的浸出率达到最大值89.22%。 并对主要影响因素的反应机理进行了分析。最后，采用两段逆流浸出工艺，降低了硫酸和中和剂的消耗，硫酸消耗降低了12.50%，中和剂消耗降低了35.80%。
Abstract This paper focused on optimizing the process conditions of direct acid leaching process to enhance the leaching efficiency of leaching vanadium from the stone coal. Orthogonal experiments and single factor experiments were conducted to investigate the effect of the influential factors of direct acid leaching on vanadium leaching ratio. The results showed that the vanadium leaching ratio reached the maximum value of 89.22 % under the optimal process conditions of CaF2 dosage 5 mass%, H2SO4 dosage 40 mass%, leaching temperature 95 °C and leaching time 10 h. Furthermore, the reaction mechanisms of the main influencing factors were analyzed. Finally, the two-stage counter-current leaching process was adopted to decrease the consumption of sulfuric acid and neutralizer, and the results indicated that the consumption of sulfuric acid decreased 12.50 % as well as neutralizer decreased 35.80 %.
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影响因子：
4.7
作者：
Li, Minting;Wei, Chang;Li, Xingbin
通讯作者：
Li, Xingbin
影响因子：
--
作者：
Li, Minting;Wei, Chang;Li, Xingbin
通讯作者：
Li, Xingbin
影响因子：
8.8
作者：
Wang Mingyu;Xiao Liansheng;Xiang Xiaoyan
通讯作者：
Xiang Xiaoyan
影响因子：
8.8
作者：
Wang Mingyu;Xiang Xiaoyan;Xiao Liansheng
通讯作者：
Xiao Liansheng
DOI：
10.1007/978-3-642-41714-6_131905
发表时间：
2014-01
期刊：
Appalachian Heritage
影响因子：
--
作者：
T. Thompson
通讯作者：
T. Thompson