Experimental Study on Decomposition of Tungsten Smelting Slag for Emission Reduction and Resource Recycling AITranslate
Abstract AITranslate
Tungsten smelting slag produced by smelting with NaOH and phosphoric acid of wolframite and scheelite mixed ore was treated with hydrochloric acid as a decomposition reagent,to achieve the goal of impurity removal and tungsten maximum enrichment.The results show that WO3 content in the slag increases from the initial 2.56% to 9.35%,which is nearly 3 times higher under the optimal conditions of liquid-solid(hydrochloric acid solution-tungsten smelting slag) ratio 10∶1,reaction time 3 h,temperature 60 ℃ and hydrochloric acid concentration 2 mol/L.In the acid reaction process,there is no significant tungsten loss,and 91.02% tungsten remains in the slag.The mass of the slag obtained from acid reaction is reduced to one quarter of the original tungsten slag,and it can be mixed with tungsten concentrate for secondary smelting,which effectively realizes emission reduction and resource recycling of tungsten slag and resolves the problem of tungsten smelting slag accumulation.
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DOI：
Chinese Library Classification Number:TF841.1[冶金工程—有色金属冶金]
Citation Information:
Tungsten smelting slag produced by smelting with NaOH and phosphoric acid of wolframite and scheelite mixed ore was treated with hydrochloric acid as a decomposition reagent,to achieve the goal of impurity removal and tungsten maximum enrichment.The results show that WO3 content in the slag increases from the initial 2.56% to 9.35%,which is nearly 3 times higher under the optimal conditions of liquid-solid(hydrochloric acid solution-tungsten smelting slag) ratio 10∶1,reaction time 3 h,temperature 60 ℃ and hydrochloric acid concentration 2 mol/L.In the acid reaction process,there is no significant tungsten loss,and 91.02% tungsten remains in the slag.The mass of the slag obtained from acid reaction is reduced to one quarter of the original tungsten slag,and it can be mixed with tungsten concentrate for secondary smelting,which effectively realizes emission reduction and resource recycling of tungsten slag and resolves the problem of tungsten smelting slag accumulation.
quote
| GB/T 7714-2015 | [1] FAN Ze-kun, HUANG Chao, XU Guo-zuan, et al. Experimental Study on Decomposition of Tungsten Smelting Slag for Emission Reduction and Resource Recycling[J]. Rare Metals and Cemented Carbides, 2020(2): 1-4. |
| MLA | [1] FAN Ze-kun, et al., "Experimental Study on Decomposition of Tungsten Smelting Slag for Emission Reduction and Resource Recycling." Rare Metals and Cemented Carbides, no. 2, 2020, pp. 1-4. |
| APA | [1] FAN Ze-kun, HUANG Chao, XU Guo-zuan, YANG Zheng-feng, HU Jia-yuan, TANG Xiao-jiang, & LIANG Yong. (2020). Experimental Study on Decomposition of Tungsten Smelting Slag for Emission Reduction and Resource Recycling. Rare Metals and Cemented Carbides(2), 1-4. |
| IEEE | [1] FAN Ze-kun, HUANG Chao, XU Guo-zuan, YANG Zheng-feng, HU Jia-yuan, TANG Xiao-jiang, and LIANG Yong, "Experimental Study on Decomposition of Tungsten Smelting Slag for Emission Reduction and Resource Recycling," Rare Metals and Cemented Carbides, no. 2, pp. 1-4, 2020. keywords: {tungsten smelting slag;acid decomposition;tungsten enrichment;emission reduction;resource recycling;secondary resource} |