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| Study on Removal of Titanium from Scandium Enrichment |
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Received:March 18, 2019
Revised:March 21, 2019
Accepted:March 22, 2019
Published Online:July 15, 2019
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| DOI：doi：10.3969/j.issn.1007-7545.2019.08.012 |
| KeyWord:scandium; secondary extraction; titanium removal; hydrogen peroxide |
| Author | Institution |
| Luo Yuzhi |
中国地质科学院矿产综合利用研究所 |
| Xu Lu |
中国地质科学院矿产综合利用研究所 中国地质调查局金属矿产资源综合利用技术研究中心 |
| Shi Guangda |
中国地质科学院矿产综合利用研究所 中国地质调查局金属矿产资源综合利用技术研究中心 |
| Zeng Xiaobo |
中国地质科学院矿产综合利用研究所 中国地质调查局金属矿产资源综合利用技术研究中心 |
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| Abstract: |
| With regard to titanium cannot be extracted into organic phase when combined with hydrogen peroxide in sulfuric acid-oxygen peroxide solution, scandium in scandium enrichment was separated with main harmful impurity titanium through dilute sulfuric acid + hydrogen peroxide dissolution and secondary extraction process. The results show that secondary extraction rate of scandium is 99.85% and >99.9% of TiO2 does not enter organic phase under the optimum conditions including volume ratio between hydrogen peroxide, concentrated sulfuric acid and water of 1︰3.5︰20, P204 concentration of 20%, A/O=10/1, extraction temperature of 25 ℃, and extraction time of 5 min. The purpose to remove impurity TiO2 in scandium enrichment is achieved. |
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