稀土学报（英文版）
稀土學報（英文版）
희토학보（영문판）
JOURNAL OF RARE EARTHS
2015年
6期
664-670
,共7页
刘一凡%张深根%潘德安%田建军%刘虎%吴茂林%Alex A. Volinsky
劉一凡%張深根%潘德安%田建軍%劉虎%吳茂林%Alex A. Volinsky
류일범%장심근%반덕안%전건군%류호%오무림%Alex A. Volinsky
BaMgAl10O17:Eu2+%alkaline fusion%thermo-kinetic analysis%reaction mechanism%rare earths
Knowledge of the kinetics and mechanism of BaMgAl10O17:Eu2+ (BAM) fusion with sodium hydroxide will benefit recy-cling rare earth elements (REEs) from the waste phosphors. The reaction temperature range of 290–375°C and the reaction mecha-nism were determined using X-ray diffraction, scanning electron microscopy and differential scanning calorimetry. Activation energy was determined by the four model-free methods, and calculated results showed that the Kissinger method value of 579.5 KJ/mol was close to the average value of the Kissinger-Akahira-Sunose (KAS) and the Flynn-Wall-Ozawa (FWO) methods of 563.5 kJ/mol. The calculated activation energy variation tendency versus conversion factor agreed with the proposed mechanism.
