Chapter 3 - solvent extraction part 1 Flashcards by Thomas Hasiweder

Q

Solvent extraction: general definitions (1)

SX systems

2 immiscible phases should be clearly specified

A

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Q

Solvent extraction: general definitions (2)

extractant

extracting agent

diluent

modifier

solvent

A

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Q

Single solvent extraction stage

A

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Q

Distribution ratio (1)

general equation

A

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Q

Distribution ratio (2)

D is a function of?

A

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Q

Extraction factor (1)

equation

A

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Q

Extraction factor (2)

processes?

ideality?

A

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Q

Extraction factor (3)

values of E

A

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Q

Fraction (not) extracted (1)

fractions phi and psi

A

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Q

Fraction (not) extracted (2)

what is R?

A

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Q

Fraction (not) extracted (3)

solvent

feed

A

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Q

Multi-stage extraction

A

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Q

Co-current extraction

A

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Q

Cross-current extraction (1)

scheme

A

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Q

Cross-current extraction (2)

theory

stripping & washing

A

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Q

Counter-current extraction (1)

scheme

A

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Q

Counter-current extraction (2)

Theory

A

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Q

Solvent extraction flow sheet with recycle of solvent

A

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Q

Flow sheet for fractional extraction of 2 extractable components

A

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Q

Fractional extraction in PUREX process

A

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Q

Separation factor (1)

separation factor alpha

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A

Q

Separation factor (2)

D and alpha

when can good separations be achieved?

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A

Q

Graphical representation of extraction data

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A

Q

Distribution curves (1)

D as a function

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A

Distribution curves (2) figures

Distribution curves (3) D vs conc(HCl)

Distribution curves (4) D vs HCl (M)

Distribution curves (5) Zinc dist. vs HCl conc

Distribution curves (6) sensitivity of gold extraction

Distribution curves (7) theory about pH

Distribution curves (8) extraction of base metals

Slope analysis (1) general

Slope analysis (2) figure 1

Slope analysis (3) figure 2

Distribution isotherms (1) general

Distribution isotherms (2) figure 1

Distribution isotherms (3) figure 2

Distribution isotherms (4) phase ratio variation method second method

Distribution isotherms (5) specific conditions

Distribution isotherms (6) effect of second metal

McCabe-Thiele diagrams (1) general

McCabe-Thiele diagrams (2) distribution isotherm operating line

McCabe-Thiele diagrams (3) influence of the shape of the distribution

McCabe-Thiele diagrams (4) stripping a loaded organic phase

McCabe-Thiele diagrams (5) hypothetical

Kinetic data of extraction and stripping

Design rules for solvent extraction (2) general

Design rules for solvent extraction (3) flowsheet

Design rules for solvent extraction (4) define key components

Design rules for solvent extraction (5) optimum phase ratio

Pinching