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| Experimental study on pre separation of thorium ore by X-ray separator |
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Received:August 02, 2020
Revised:August 06, 2020
Accepted:August 11, 2020
Published Online:August 18, 2021
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| DOI： |
| KeyWord:Thorium ore; X-fluorescence; Threshold; Tast sorting |
| Author | Institution |
| Zhang Qian |
Key Laboratory of Integrated Exploitation of Bayan Obo Multi-Metal Resources,IMUST |
| Chen Chen |
IMUST |
| Wang Wencai |
Institute of Mining Engineering,Inner Mongolia University of Science and Technology |
| Zhao Yonggang |
Baosteel Group Company. |
| Cui Lingxiao |
Baotou Rare Earth Research Institute. |
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| Abstract: |
| This paper mainly studies the pre-enrichment experiment of X-fluorescence to Th. The rich thorium ore enriched by X-fluorescent pickers was analyzed by XRD, scanning electron mirrors and hand-held X-ray for process mineralogy, and the accuracy of X-fluorescent identification of thorium was determined, and the radon elements were generally deposited in rare earth minerals, such as fluorocarbon palladium, living alone, and found that x-fluorescent can be enriched with the independent mineral "iron thorium". Then the use of energy dispersion X-ray fluorescent ore sorter selection, the threshold of 0.3 picked the grade of radon-containing minerals increased by 2.34 times, the recovery rate of radon reached 18%, and determined the correspondence between the threshold and grade, to determine the threshold of 0.4 time selection effect is the best. This not only directly reduces the radioactivity of the ore entering the selection process, but also provides pre-enrichment technology for the purification of radon. |
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