Process Research on Germanium Extraction from Low-grade Germanium Concentrate with Fluorination Roasting Pretreatment AITranslate
Abstract AITranslate
Fluorination roasting pretreatment was adopted to improve Ge extraction rate from low-grade Ge concentrate. The effects of fluoride dosage, roasting temperature and roasting time on Ge extraction rate were investigated by single factor optimization experiment and orthogonal experiment. The results show that NaF dosage and roasting temperature have great effects on Ge extraction rate, and the roasting time should not be too long. Under the fluorination roasting pretreatment conditions of the mass ratio of NaF dosage to Ge concentrate of 1 ： 1, roasting temperature of 800 ℃ and roasting time of 2 h,Ge extraction rate reaches the maximum value of 99.16%. This method is also applicable to the secondary extraction of Ge from chlorination distillation residue,and Ge extraction rate reaches 91.58% with greatly reduced Ge content in the residue. There is no HF generated in the whole extraction process. In addition,this method has many advantages, such as low equipment requirements, simple operation and environment-friendly process. Keywords： germanium concentrate; germanium extraction; fluorination roasting; chlorination distillation; NaF
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DOI：
Chinese Library Classification Number:TF111[冶金工程—冶金物理化学]
Citation Information:
Fluorination roasting pretreatment was adopted to improve Ge extraction rate from low-grade Ge concentrate. The effects of fluoride dosage, roasting temperature and roasting time on Ge extraction rate were investigated by single factor optimization experiment and orthogonal experiment. The results show that NaF dosage and roasting temperature have great effects on Ge extraction rate, and the roasting time should not be too long. Under the fluorination roasting pretreatment conditions of the mass ratio of NaF dosage to Ge concentrate of 1 ： 1, roasting temperature of 800 ℃ and roasting time of 2 h,Ge extraction rate reaches the maximum value of 99.16%. This method is also applicable to the secondary extraction of Ge from chlorination distillation residue,and Ge extraction rate reaches 91.58% with greatly reduced Ge content in the residue. There is no HF generated in the whole extraction process. In addition,this method has many advantages, such as low equipment requirements, simple operation and environment-friendly process. Keywords： germanium concentrate; germanium extraction; fluorination roasting; chlorination distillation; NaF
quote
| GB/T 7714-2015 | [1] LI Zhang-lin, YANG Zai-lei, XIE Gao, et al. Process Research on Germanium Extraction from Low-grade Germanium Concentrate with Fluorination Roasting Pretreatment[J]. Rare Metals and Cemented Carbides, 2017(5): 22-26. |
| MLA | [1] LI Zhang-lin, et al., "Process Research on Germanium Extraction from Low-grade Germanium Concentrate with Fluorination Roasting Pretreatment." Rare Metals and Cemented Carbides, no. 5, 2017, pp. 22-26. |
| APA | [1] LI Zhang-lin, YANG Zai-lei, XIE Gao, XUE Dan, DOU Hui, ZHANG Xian, TENG Wen, & PU Shi-kun. (2017). Process Research on Germanium Extraction from Low-grade Germanium Concentrate with Fluorination Roasting Pretreatment. Rare Metals and Cemented Carbides(5), 22-26. |
| IEEE | [1] LI Zhang-lin, YANG Zai-lei, XIE Gao, XUE Dan, DOU Hui, ZHANG Xian, TENG Wen, and PU Shi-kun, "Process Research on Germanium Extraction from Low-grade Germanium Concentrate with Fluorination Roasting Pretreatment," Rare Metals and Cemented Carbides, no. 5, pp. 22-26, 2017. keywords: {germanium concentrate;germanium extraction;fluorination roasting;chlorination distillation NaF} |