How is dysprosium refined?
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Dysprosium is refined through various methods outlined in the research papers. One method involves selecting materials, crushing, acid treatment, extraction with P507, sedimentation, and firing to extract and purify dysprosium oxide . Another approach utilizes a rare earth chloride solution, chelating agent, high-temperature drying, grinding, precipitation, and burning to achieve high-purity dysprosium oxide . Additionally, a method for re-purifying low-purity dysprosium oxide includes solution preparation, adsorption, ion exchange, and waste treatment to achieve purity levels of up to 99.99999% . Furthermore, dysprosium infiltration into NdFeB magnets involves adding dysprosium oxide for grain refinement, forming a protective film, and vacuum treatment for improved Dy infiltration capacity and coercive force enhancement . These methods collectively demonstrate the diverse approaches to refining dysprosium.
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| Papers (4) | Insight |
|---|---|
| The dysprosium oxide is refined through a method involving solution preparation, column transformations, adsorption, ion exchange, and waste treatment, achieving purity levels of 99.998 to 99.99999 percent. | |
| Dysprosium is refined using a method involving rare earth chloride solution, chelating agent, extraction, high-temperature drying, grinding, precipitation, and high-temperature burning to achieve high purity dysprosium oxide. | |
| Dysprosium is refined by adding dysprosium oxide to NdFeB magnets, dissolving it in ethanol to form a protective film, and then fully infiltrating it into the base body through vacuum treatment. | |
| Dysprosium is refined through a method involving material selection, crushing, acid treatment, extraction with P507, sedimentation, and firing, achieving separation of heavy and light rare earth elements. |
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