Chapter 3 - solvent extraction part 1

Question 1

Solvent extraction: general definitions (1)

SX systems

2 immiscible phases should be clearly specified

Answer 1

Question 2

Solvent extraction: general definitions (2)

extractant

extracting agent

diluent

modifier

solvent

Answer 2

Question 3

Single solvent extraction stage

Answer 3

Question 4

Distribution ratio (1)

general equation

Answer 4

Question 5

Distribution ratio (2)

D is a function of?

Answer 5

Question 6

Extraction factor (1)

equation

Answer 6

Question 7

Extraction factor (2)

processes?

ideality?

Answer 7

Question 8

Extraction factor (3)

values of E

Answer 8

Question 9

Fraction (not) extracted (1)

fractions phi and psi

Answer 9

Question 10

Fraction (not) extracted (2)

what is R?

Answer 10

Question 11

Fraction (not) extracted (3)

solvent

feed

Answer 11

Question 12

Multi-stage extraction

Answer 12

Question 13

Co-current extraction

Answer 13

Question 14

Cross-current extraction (1)

scheme

Answer 14

Question 15

Cross-current extraction (2)

theory

stripping & washing

Answer 15

Question 16

Counter-current extraction (1)

scheme

Answer 16

Question 17

Counter-current extraction (2)

Theory

Answer 17

Question 18

Solvent extraction flow sheet with recycle of solvent

Answer 18

Question 19

Flow sheet for fractional extraction of 2 extractable components

Answer 19

Question 20

Fractional extraction in PUREX process

Answer 20

Question 21

Separation factor (1)

separation factor alpha

Answer 21

Question 22

Separation factor (2)

D and alpha

when can good separations be achieved?

Answer 22

Question 23

Graphical representation of extraction data

Answer 23

Question 24

Distribution curves (1)

D as a function

Answer 24

Question 25

Distribution curves (2)

figures

Answer 25

Question 26

Distribution curves (3)

D vs conc(HCl)

Answer 26

Question 27

Distribution curves (4)

D vs HCl (M)

Answer 27

Question 28

Distribution curves (5)

Zinc dist. vs HCl conc

Answer 28

Question 29

Distribution curves (6)

sensitivity of gold extraction

Answer 29

Question 30

Distribution curves (7)

theory about pH

Answer 30

Question 31

Distribution curves (8)

extraction of base metals

Answer 31

Question 32

Slope analysis (1)

general

Answer 32

Question 33

Slope analysis (2)

figure 1

Answer 33

Question 34

Slope analysis (3)

figure 2

Answer 34

Question 35

Distribution isotherms (1)

general

Answer 35

Question 36

Distribution isotherms (2)

figure 1

Answer 36

Question 37

Distribution isotherms (3)

figure 2

Answer 37

Question 38

Distribution isotherms (4)

phase ratio variation method

second method

Answer 38

Question 39

Distribution isotherms (5)

specific conditions

Answer 39

Question 40

Distribution isotherms (6)

effect of second metal

Answer 40

Question 41

McCabe-Thiele diagrams (1)

general

Answer 41

Question 42

McCabe-Thiele diagrams (2)

distribution isotherm

operating line

Answer 42

Question 43

McCabe-Thiele diagrams (3)

influence of the shape of the distribution

Answer 43

Question 44

McCabe-Thiele diagrams (4)

stripping a loaded organic phase

Answer 44

Question 45

McCabe-Thiele diagrams (5)

hypothetical

Answer 45

Question 46

Kinetic data of extraction and stripping

Answer 46

Question 47

Design rules for solvent extraction (2)

general

Answer 47

Question 48

Design rules for solvent extraction (3)

flowsheet

Answer 48

Question 49

Design rules for solvent extraction (4)

define key components

Answer 49

Question 50

Design rules for solvent extraction (5)

optimum phase ratio

Answer 50

Question 51

Pinching

Answer 51