Residue Curve Map for Methyl Acetate and Isopropyl Acetate Chemistry at 1 atm
Residue Curve Map for Methyl Acetate and Isopropyl Acetate Chemistry at 1 atm
This Demonstration plots the residue curve passing through the locator position.
The first system considered is the esterification of acetic acid with methanol to produce methyl acetate and water:
CCOOH+COH⇌CCOOC+O
H
3
H
3
H
3
H
3
H
2
There is a nonreactive azeotrope between methanol and methyl acetate corresponding to =0.669 and =1. This azeotrope is an unstable node. Acetic acid is the stable node. Water, methyl acetate, and methanol are three saddle points.
X
1
X
2
The axes labels are and , the independent liquid transformed compositions given by=+ and =+, where is the liquid mole fraction of component and methyl acetate is the reference component.
X
1
X
2
X
1
x
aceticacid
x
methylacetate
X
2
x
methanol
x
methylacetate
x
A
A
The second system considered is the esterification of acetic acid with isopropanol to produce isopropyl acetate and water:
CCOOH+CCH(OH)C⇌CCOOC+O
H
3
H
3
H
3
H
3
H(C)
H
3
2
H
2
If you select this second option, the Demonstration again plots the residue curve passing through the locator position.
There is a reactive azeotrope corresponding to =0.231 and =0.748. This reactive azeotrope is an unstable node. In addition, there are two nonreactive binary azeotropes. The first is between isopropanol and water, while the other is between isopropanol and isopropyl acetate. Both nonreactive azeotropes are saddle points. Isopropyl acetate and water are two saddle points while acetic acid and isopropanol are two stable nodes.
X
1
X
2
The axes labels are and , with the independent liquid transformed compositions given by =+ and =+, where is the liquid mole fraction of component and isopropyl acetate is the reference component.
X
1
X
2
X
1
x
aceticacid
x
isopropylacetate
X
2
x
isopropanol
x
isopropylacetate
x
A
A