- Tytuł:
- Effects of Reagent Concentration and Particle Size οn Diffusion Rate of Mixed Ores with Rare Elements
- Autorzy:
-
Yang, X.
Zhang, L. - Tematy:
-
66.30.Fq
91.65.Rg - Pokaż więcej
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Powiązania:
- https://bibliotekanauki.pl/articles/1399505.pdf Link otwiera się w nowym oknie
- Opis:
- The leaching reaction kinetics of weathered crust elution-deposited rare earth with mixed ammonium salts was studied. The influence of concentration of reagents and particle size of ore on leaching rate was investigated. The results showed that the diffusion process and leaching rate could be improved by increasing reagents concentration and decreasing leaching flowing rate and particle size. The leaching process could be explained with the shrinking core model, which could be controlled by the diffusion rate of reacting reagents in porous solid layer. The leaching rate obeyed the equation as $ 1-2//3η-(1-η)^{2//3}=7.126 \times 10^{-4} C^{0.3038} R^{0.1942}t $.
- Dostawca treści:
- Biblioteka Nauki
Artykuł