Experimental Study on Recovery of Gallium from Coal Gangue by Enhanced Leaching AITranslate
Abstract AITranslate
Coal gangue is a kind of solid waste containing gallium,which has an important recycling value.The experimental study was carried out on the extraction of gallium from coal gangue by enhanced leaching,and the influences of such leaching parameters as sulfuric acid concentration and calcium fluoride dosage on leaching efficiency of gallium were investigated.The results show that the addition of calcium fluoride could accelerate the dissolution of gallium,significantly improve the leaching efficiency of gallium,and reduce the consumption of sulfuric acid.The leaching efficiency of gallium in coal gangue reaches 95%under the conditions of coal gangue particle size of less than 0.045 mm,sulfuric acid concentration of 20%,calcium fluoride dosage of 5%,leaching temperature of 80 C,liquid to solid ratio of 7.5 mL/g,stirring speed of 400 r/min and reaction time of 120 min.This study may provide a new idea for the efficient recovery of gallium from coal gangue.
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Chinese Library Classification Number:TF843.1[冶金工程—有色金属冶金]
Citation Information:
Coal gangue is a kind of solid waste containing gallium,which has an important recycling value.The experimental study was carried out on the extraction of gallium from coal gangue by enhanced leaching,and the influences of such leaching parameters as sulfuric acid concentration and calcium fluoride dosage on leaching efficiency of gallium were investigated.The results show that the addition of calcium fluoride could accelerate the dissolution of gallium,significantly improve the leaching efficiency of gallium,and reduce the consumption of sulfuric acid.The leaching efficiency of gallium in coal gangue reaches 95%under the conditions of coal gangue particle size of less than 0.045 mm,sulfuric acid concentration of 20%,calcium fluoride dosage of 5%,leaching temperature of 80 C,liquid to solid ratio of 7.5 mL/g,stirring speed of 400 r/min and reaction time of 120 min.This study may provide a new idea for the efficient recovery of gallium from coal gangue.
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| GB/T 7714-2015 | [1] MA Chen, ZHU Xiao-bo, LI Wang, et al. Experimental Study on Recovery of Gallium from Coal Gangue by Enhanced Leaching[J]. Rare Metals and Cemented Carbides, 2022(4): 24-27. |
| MLA | [1] MA Chen, et al., "Experimental Study on Recovery of Gallium from Coal Gangue by Enhanced Leaching." Rare Metals and Cemented Carbides, no. 4, 2022, pp. 24-27. |
| APA | [1] MA Chen, ZHU Xiao-bo, LI Wang, ZHANG Zhi-guo, & ZHANG Chuan-xiang. (2022). Experimental Study on Recovery of Gallium from Coal Gangue by Enhanced Leaching. Rare Metals and Cemented Carbides(4), 24-27. |
| IEEE | [1] MA Chen, ZHU Xiao-bo, LI Wang, ZHANG Zhi-guo, and ZHANG Chuan-xiang, "Experimental Study on Recovery of Gallium from Coal Gangue by Enhanced Leaching," Rare Metals and Cemented Carbides, no. 4, pp. 24-27, 2022. keywords: {coal gangue;gallium recovery;leaching;sulfuric acid;calcium fluoride;process condition} |