Separation of thorium(IV) and extracting rare earths from sulfuric and phosphoric acid solutions by solvent extraction method
文献类型：期刊论文
| 作者 | Li DQ ; Zuo Y ; Meng SL |
| 刊名 | journal of alloys and compounds
 |
| 出版日期 | 2004 |
| 卷号 | 374期号:1-2页码:431-433 |
| ISSN号 | 0925-8388 |
| 通讯作者 | li dq |
| 中文摘要 | the bastnasite of baotou (china) was roasted in concentrated sulfuric acid at 250-300 degreesc and the calcined products were leached by water. almost all rare earths (re) were moved into solutions in trivalent along with some radioactive impurity thorium(iv) (th(iv))which accounts for 0.4% of re and other impurities such as fe(iii), ca, f, p, etc. through fractional extraction (seven stages for extraction and nine for scrubbing), the mass ratio of th(iv) and re (tho2/reo) in solution has decreased to 5 x 10(-6). the purity of tho2 product recovered from organic phase is above 99%. the iron(iii) in solutions can be removed in the form of precipitation by adding some magnesia into the solutions. then re can be concentrated by solvent extraction with 2-ethylhexyl phosphinic acid 2-ethylhexylester (p-507). the results of fractional extraction show that the concentration of total re in aqueous solutions stripped by hydrochloric acid is over 200 g reo/i with the yield of re above 99%. individual re can be attained by solvent extraction with p507 in the following process. |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000222169600097 |
| 公开日期 | 2010-08-17 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/15593]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | Li DQ,Zuo Y,Meng SL. Separation of thorium(IV) and extracting rare earths from sulfuric and phosphoric acid solutions by solvent extraction method[J]. journal of alloys and compounds,2004,374(1-2):431-433. |
| APA | Li DQ,Zuo Y,&Meng SL.(2004).Separation of thorium(IV) and extracting rare earths from sulfuric and phosphoric acid solutions by solvent extraction method.journal of alloys and compounds,374(1-2),431-433. |
| MLA | Li DQ,et al."Separation of thorium(IV) and extracting rare earths from sulfuric and phosphoric acid solutions by solvent extraction method".journal of alloys and compounds 374.1-2(2004):431-433. |
入库方式： OAI收割
来源：长春应用化学研究所
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