Preliminary Research on the Extraction of Rare Earth Elements from Phosphate Rock with Ion Exchange Method AITranslate
Abstract AITranslate
Rare earth associated phosphate rock was dissolved with 55% nitric acid to obtain the digested solution,where rare earth elements were extracted with ion exchange method.Effects were studied of ion exchange time,eluent pH,EDTA concentration and calcium ion in the digested solution on rare earth extraction.The results show that the optimum technological conditions are as follows：ion exchange time of 50 min,eluent pH of 9.0,EDTA concentration of 0.020 mol/L and elution time of 50 min.Under the above conditions,rare earth adsorption rate of the resin can be up to 50%from the digested solution by one step ion exchange,and rare earth elution rate is beyond 94% by one step elution.Rare earth adsorption rate significantly increases after calcium is removed from the digested solution by concentrating and freezing.
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Basic Information:
DOI：
Chinese Library Classification Number:TF845[冶金工程—有色金属冶金]
Citation Information:
Rare earth associated phosphate rock was dissolved with 55% nitric acid to obtain the digested solution,where rare earth elements were extracted with ion exchange method.Effects were studied of ion exchange time,eluent pH,EDTA concentration and calcium ion in the digested solution on rare earth extraction.The results show that the optimum technological conditions are as follows：ion exchange time of 50 min,eluent pH of 9.0,EDTA concentration of 0.020 mol/L and elution time of 50 min.Under the above conditions,rare earth adsorption rate of the resin can be up to 50%from the digested solution by one step ion exchange,and rare earth elution rate is beyond 94% by one step elution.Rare earth adsorption rate significantly increases after calcium is removed from the digested solution by concentrating and freezing.
quote
| GB/T 7714-2015 | [1] ZH OU, OU J, J un-hong, et al. Preliminary Research on the Extraction of Rare Earth Elements from Phosphate Rock with Ion Exchange Method[J]. Rare Metals and Cemented Carbides, 2016(5): 11-15. |
| MLA | [1] ZH OU, et al., "Preliminary Research on the Extraction of Rare Earth Elements from Phosphate Rock with Ion Exchange Method." Rare Metals and Cemented Carbides, no. 5, 2016, pp. 11-15. |
| APA | [1] ZH OU, OU J, J un-hong, CAI Xian-j, RUAN Dai-tan, & TIAN Xian-li. (2016). Preliminary Research on the Extraction of Rare Earth Elements from Phosphate Rock with Ion Exchange Method. Rare Metals and Cemented Carbides(5), 11-15. |
| IEEE | [1] ZH OU, OU J, J un-hong, CAI Xian-j, RUAN Dai-tan, and TIAN Xian-li, "Preliminary Research on the Extraction of Rare Earth Elements from Phosphate Rock with Ion Exchange Method," Rare Metals and Cemented Carbides, no. 5, pp. 11-15, 2016. keywords: {rare earth extraction;rare earth associated phosphate rock;ion exchange method;dissolution with nitric acid;elution with EDTA（ethylenediaminetetraacetic acid）;calcium removal by freezing} |