New Process of Aluminum Removal from Waste Rare Earth Aluminate Trichromatic Phosphors AITranslate
Abstract AITranslate
The rare earth solution obtained by alkali fusion and acid leaching of waste rare earth aluminate trichromatic phosphors usually includes high content aluminum.Therefore,sodium or potassium organic salt selective precipitation method was presented to purify the solution,and the effects were investigated of solution pH,initial aluminum content,temperature and selective precipitant dosage on aluminum removal.Experimental results show that under the conditions of initial rare earth solution pH higher than 2.8,room temperature and atmospheric pressure and precipitant dosage more than 1.3times the theoretical amount,the concentration of residual aluminum in the solution is less than 0.22g/L,aluminum removal efficiency reaches 98.6%,and rare earth loss rate is only 0.83%.
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DOI：
Chinese Library Classification Number:TF803.25[冶金工程—有色金属冶金]
Citation Information:
The rare earth solution obtained by alkali fusion and acid leaching of waste rare earth aluminate trichromatic phosphors usually includes high content aluminum.Therefore,sodium or potassium organic salt selective precipitation method was presented to purify the solution,and the effects were investigated of solution pH,initial aluminum content,temperature and selective precipitant dosage on aluminum removal.Experimental results show that under the conditions of initial rare earth solution pH higher than 2.8,room temperature and atmospheric pressure and precipitant dosage more than 1.3times the theoretical amount,the concentration of residual aluminum in the solution is less than 0.22g/L,aluminum removal efficiency reaches 98.6%,and rare earth loss rate is only 0.83%.
quote
| GB/T 7714-2015 | [1] LIU Yu-hui, OU Yang-yu-ping, YU Rong-min, et al. New Process of Aluminum Removal from Waste Rare Earth Aluminate Trichromatic Phosphors[J]. Rare Metals and Cemented Carbides, 2016(1): 21-24. |
| MLA | [1] LIU Yu-hui, et al., "New Process of Aluminum Removal from Waste Rare Earth Aluminate Trichromatic Phosphors." Rare Metals and Cemented Carbides, no. 1, 2016, pp. 21-24. |
| APA | [1] LIU Yu-hui, OU Yang-yu-ping, YU Rong-min, & WANG Zhi-jian. (2016). New Process of Aluminum Removal from Waste Rare Earth Aluminate Trichromatic Phosphors. Rare Metals and Cemented Carbides(1), 21-24. |
| IEEE | [1] LIU Yu-hui, OU Yang-yu-ping, YU Rong-min, and WANG Zhi-jian, "New Process of Aluminum Removal from Waste Rare Earth Aluminate Trichromatic Phosphors," Rare Metals and Cemented Carbides, no. 1, pp. 21-24, 2016. keywords: {rare earth;waste trichromatic phosphor;aluminum removal;sodium organic salt;selective precipitation} |