Two processes applying green solvents for recovering rare earth elements (REEs) from different types of aluminate phosphors are demonstrated in this report. For magnesium aluminate-type phosphors, a pretreatment with peroxide calcination was implemented first, and then followed by supercritical fluid extraction (SFE) process. Supercritical carbon dioxide (sc-CO2) provides an effective medium ex...

Oxide layers on Mg97Y2Zn1 magnesium alloy with strengthening LPSO-phase were formed by plasma electrolytic oxidation (PEO) in bipolar mode frequency variation of forming current pulses (50 and 500 Hz) addition sodium aluminate or silicate to alkali phosphate fluoride electrolyte. Microstructure, chemical phase composition, corrosion mechanical properties the oxide investigated. With increasing ...