HW 4 - p 5.10 - Multistage Extraction of Uranyl Nitrate - 5 pts
The uranyl nitrate (UN) in 2 kg of a 20 wt% aqueous solution is to be extracted with 500 g of tributyl phosphate. Using the equilibrium data in Exercise 5.9, calculate and compare the percentage recoveries for the following alternative procedures:
(a) A single stage batch extraction
(b) Three batch extractions with one-third of the total solvent used in each batch
(c) A two-stage cocurrent extraction
(d) A three-stage countercurrent extraction
(e) An infinite-stage countercurrent extraction
(f) An infinite-stage crosscurrent extraction
(a) A single stage batch extraction
(b) Three batch extractions with one-third of the total solvent used in each batch
(c) A two-stage cocurrent extraction
(d) A three-stage countercurrent extraction
(e) An infinite-stage countercurrent extraction
(f) An infinite-stage crosscurrent extraction
posted by Dr. B at 2:36 PM
1 Comments:
The data given for the distribution coefficient is confusing. Here is how you should interpret it: Y = 5.5 X, where X is the mass ratio of UN in the raffinate and Y is the mass ratio of UN in the extract. Basically, K' = 5.5. NOTE: this is not the way I interpreted this during class earlier this week !
Post a Comment
<< Home