Study of Primary Recovery Process of Tellurium from Bismuth Refined Alkali Residue in Hunan Shizhuyuan AITranslate
Abstract AITranslate
In view of large amount of tellurium and bismuth enriched in bismuth refined alkaline residue,a process is proposed of tellurium and bismuth recovery from the alkaline residue.Tellurium exists in the alkaline residue mainly in the form of sodium tellurite.Sodium tellurite is soluble in water and transforms into tellurium dioxide near neutral pH value.Therefore,tellurium can be recovered to prepare coarse tellurium dioxide from the alkaline residue by primary process steps of water leaching,neutralization,roasting and so on.Feasibility of tellurium recovery from the alkaline residue was verified,and the influences were emphatically investigated of leaching time,liquid-solid ratio and neutralization pH value for tellurium precipitation on tellurium recovery.The results show that the optimum conditions are as follows：leaching time of5 h,liquid-solid ratio of 5∶1and neutralization pH value of 6.0for tellurium precipitation.
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Chinese Library Classification Number:TF843.5[冶金工程—有色金属冶金]
Citation Information:
In view of large amount of tellurium and bismuth enriched in bismuth refined alkaline residue,a process is proposed of tellurium and bismuth recovery from the alkaline residue.Tellurium exists in the alkaline residue mainly in the form of sodium tellurite.Sodium tellurite is soluble in water and transforms into tellurium dioxide near neutral pH value.Therefore,tellurium can be recovered to prepare coarse tellurium dioxide from the alkaline residue by primary process steps of water leaching,neutralization,roasting and so on.Feasibility of tellurium recovery from the alkaline residue was verified,and the influences were emphatically investigated of leaching time,liquid-solid ratio and neutralization pH value for tellurium precipitation on tellurium recovery.The results show that the optimum conditions are as follows：leaching time of5 h,liquid-solid ratio of 5∶1and neutralization pH value of 6.0for tellurium precipitation.
quote
| GB/T 7714-2015 | [1] OU Yang-hai-bo, LEI Yin-chun. Study of Primary Recovery Process of Tellurium from Bismuth Refined Alkali Residue in Hunan Shizhuyuan[J]. Rare Metals and Cemented Carbides, 2017(1): 23-25. |
| MLA | [1] OU Yang-hai-bo, and LEI Yin-chun. "Study of Primary Recovery Process of Tellurium from Bismuth Refined Alkali Residue in Hunan Shizhuyuan." Rare Metals and Cemented Carbides, no. 1, 2017, pp. 23-25. |
| APA | [1] OU Yang-hai-bo, & LEI Yin-chun. (2017). Study of Primary Recovery Process of Tellurium from Bismuth Refined Alkali Residue in Hunan Shizhuyuan. Rare Metals and Cemented Carbides(1), 23-25. |
| IEEE | [1] OU Yang-hai-bo and LEI Yin-chun, "Study of Primary Recovery Process of Tellurium from Bismuth Refined Alkali Residue in Hunan Shizhuyuan," Rare Metals and Cemented Carbides, no. 1, pp. 23-25, 2017. keywords: {bismuth refined alkaline residue;Te;Bi;primary recovery;water leaching;technical condition} |