TY  - Data
T1  - Dataset of Preparation Process for High-purity Anhydrous Rare Earth Halides Compounds
A1  - shi ya nan
PY  - 2026
DA  - 2026-05-19
PB  - National Cryosphere Desert Data Center
AB  - In response to the problems of limited variety, low purity, and difficulty in deep purification and impurity removal of domestically produced high-end rare earth halide reagents, this study systematically investigated the mass transfer mechanism and deep purification and impurity removal technology of key impurity elements in the deep purification and impurity removal process of anhydrous rare earth halides, and developed a kilogram scale preparation capability.   Development of a high-purity anhydrous rare earth halide preparation process using ammonium halide dehydration method, resulting in the production of anhydrous rare earth halides YbCl3, ErCl3, YBr3, and NdI3.   Based on laboratory preparation processes, further exploration of kilogram scale preparation processes was carried out, and the construction and commissioning of four high-purity anhydrous rare earth halide reagent kilogram scale production lines were completed. Four high-purity rare earth halide and halide like reagent kilogram scale processes were developed, and kilogram scale process documents were established. The purity and radioactive indicators of kilogram scale products met the requirements.   Due to the special nature of rare earth materials, this dataset is not publicly available and only shares metadata. To obtain the entity of the dataset, please contact the data manager.
DB  - NCDC
UR  - http://www.ncdc.ac.cn/portal/metadata/cc8faa5e-c096-408b-81c3-52788e548cf8
ER  -