Rare earth total oxides

The application of the normal hydrothermal and microwave hydrothermal process to recover the total oxides of the rare earths from monazite in Quang Nam by acids HCl, HNO3, H2SO4 and alkali NaOH have been studied. Research results show that the best conditions to obtain the total rare earth oxide in Quang Nam and with the highest performance microwave hydrothermal metallurgy ore monazite in Quang Nam particle size < 0,076mm in the rate of 12M H2SO4 /ore is 5:1 (ml/g) in 60 minutes in the microwave power 450W.

6p thiendiadaodien_9 04-03-2019 22 0   Download