Chemical Metallurgy

Examenvragen

18 januari 2019 - namiddag

1. What is the purpose of crushing, grinding and milling operations in mineral processing? Why are not all ores milled to a very fine particle size?
2. For what applications can ammoniacal leaching offer an advantage in comparison to leaching with strong acids? What are advantages and disadvantages of ammoniacal leaching?
3. What is the phase continuity in a mixer-settler? How can the phase continuity be controlled? How can you determine the type of phase continuity? What factors influence the choice of one phase continuity over the other in a solvent extraction process?
4. How can deionised water be prepared by using ion-exchange resins?
5. (a) What are the basic steps of the PUREX process? (b) What’s the methodology to separate uranium and plutonium from each other?