一种高温高压下合成氟碳钇矿单晶的方法
By synthesizing yttrium carbonate single crystals under high temperature and high pressure, the problem of insufficient research on the crystal structure of heavy rare earth yttrium carbonate was solved, the growth of pure yttrium carbonate single crystals was realized, the experimental operation was simplified and the controllability of conditions was improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- INST OF GEOCHEMISTRY CHINESE ACAD OF SCI
- Filing Date
- 2023-01-09
- Publication Date
- 2026-07-17
AI Technical Summary
Currently, there is insufficient research on the crystal structure and thermodynamic properties of heavy rare earth bastnaes (such as bastnaesite (holmium), bastnaesite (erbium), bastnaesite (thulium), bastnaesite (ytterbium), and bastnaesite (yttrium), which hinders the understanding of the enrichment, migration, and mineralization mechanisms of rare earth elements. Furthermore, there are no reports on the growth of artificial bastnaesite (yttrium) single crystals and their crystal structure data.
Under high temperature and high pressure conditions, YCl3, NaF and Na2CO3 were mixed in stoichiometric molar ratios according to chemical reactions. The formation process of fluorocarbon yttrium single crystals was simulated using a laboratory large-cavity press. S-type thermocouples and pyrophyllite were used as pressure transmission media to control temperature and pressure, and fluorocarbon yttrium single crystals were synthesized.
A pure fluorocarbon yttrium single crystal was successfully synthesized, solving the problem of difficult growth of fluorocarbon yttrium single crystals. This method provides a simple experimental operation with easily controllable conditions, and a pure single-phase fluorocarbon yttrium single crystal was obtained.
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Figure CN116240617B_ABST