Study on the New Process of Vanadium Extraction from Siliceous Stone Coal AITranslate
Abstract AITranslate
Based on the single-factor condition test,the optimal technological parameters are determined for vanadium extraction by the＂roasting without additives-alkaline leaching＂and the oxidizer-oxidizing-acid leaching processes.The test results show that with mineral particle size 0.074 mm,oxygen partial pressure 10～100 Pa,roasting duration 3 h,leaching temperature 90 ℃,3 h leaching duration,caustic soda concentration 40 g/L,liquid-solid ratio 1.5∶1.0,the leaching rate of vanadium pentoxide by roasting without additives-alkaline leaching＂ can reach 83.8%,20% higher than that bytraditional sodium roasting-acid or alkaline leaching,with mineral particle size 0.074 mm,MnO2 oxidizer consumption at 5%,sulfuric acid concentration at 40%,leaching temperature 90 ℃,9 h leaching duration,liquid-solid ratio 2.5∶1.0,the leaching rate of vanadium pentoxide by oxidizer-oxidizing-acid leaching can reach 72.4%,10% higher than that by the traditional sodium roasting.
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Basic Information:
DOI：
Chinese Library Classification Number:TQ135.11[化学工程—无机化工]
Citation Information:
Based on the single-factor condition test,the optimal technological parameters are determined for vanadium extraction by the＂roasting without additives-alkaline leaching＂and the oxidizer-oxidizing-acid leaching processes.The test results show that with mineral particle size 0.074 mm,oxygen partial pressure 10～100 Pa,roasting duration 3 h,leaching temperature 90 ℃,3 h leaching duration,caustic soda concentration 40 g/L,liquid-solid ratio 1.5∶1.0,the leaching rate of vanadium pentoxide by roasting without additives-alkaline leaching＂ can reach 83.8%,20% higher than that bytraditional sodium roasting-acid or alkaline leaching,with mineral particle size 0.074 mm,MnO2 oxidizer consumption at 5%,sulfuric acid concentration at 40%,leaching temperature 90 ℃,9 h leaching duration,liquid-solid ratio 2.5∶1.0,the leaching rate of vanadium pentoxide by oxidizer-oxidizing-acid leaching can reach 72.4%,10% higher than that by the traditional sodium roasting.
quote
| GB/T 7714-2015 | [1] SUN De-si, ZHANG Li-ming, ZHANG Xian-zhen. Study on the New Process of Vanadium Extraction from Siliceous Stone Coal[J]. Rare Metals and Cemented Carbides, 2010(2): 5-10. |
| MLA | [1] SUN De-si, et al., "Study on the New Process of Vanadium Extraction from Siliceous Stone Coal." Rare Metals and Cemented Carbides, no. 2, 2010, pp. 5-10. |
| APA | [1] SUN De-si, ZHANG Li-ming, & ZHANG Xian-zhen. (2010). Study on the New Process of Vanadium Extraction from Siliceous Stone Coal. Rare Metals and Cemented Carbides(2), 5-10. |
| IEEE | [1] SUN De-si, ZHANG Li-ming, and ZHANG Xian-zhen, "Study on the New Process of Vanadium Extraction from Siliceous Stone Coal," Rare Metals and Cemented Carbides, no. 2, pp. 5-10, 2010. keywords: {siliceous stone coal;roasting without additive;alkaline leaching;oxidizer;acid leaching;vanadium extraction process} |