for Printing 5 of
“Separation Process Principles” by Seader and Henley
In addition, these Errata apply to Printings 1 through 4
Line 6 from the top of the page: A unit width of W = 1 m is assumed, but the symbol W is not carried through in the subsequent
equations, making the equations confusing and the units of the equations inconsistent. Thus, it is preferred to insert W after d in the equation beginning with nA, replace A with L in the next two equations, and then replace A = (1)(3) = 3 m2 with L = 1 m.
Figure 4.1(b): Under Independent equations, in the equation that begins with F, the mole fractions zi, yi,and xi should not be subscripts.
Figure 4.24: Within the rectangle BHIGF, delete the words, “+ solution”.
Unnumbered table at the top of the page: At the bottom of the table, change the sum of the xi mole fractions from 10 to 1.
Item 2 under the Solution to Example 7.2 The equation for L/V should be: L/V = (L/D)/[1 + (L/D)]
Pages 438-459, Section 8.3
Much of the discussion, but not the two examples (8.1 and 8.2), in this section is based on the ternary system furfural-water-ethylene glycol. The equilibrium data (binodal curve and tie lines) in the triangular plots of Figures 8.14, 15, 17, 18, 22, 24, 25, and 27 are incorrect. The correct data are tabulated, but not plotted, by Conway and Norton in the journal Industrial and Engineering Chemistry, Vol. 46, pages 1433-1435, 1951. The main difference between the plots in Section 8.3 and the data of Conway and Norton is the tie lines, which are incorrectly reversed in Section 8.3. Thus, the statement near the top of page 440 that, at equilibrium, ethylene glycol has a higher concentration in furfural than in water is incorrect. The Conway and Norton data show that the reverse is true. For removing ethylene glycol from water, furfural is not a good solvent.
In Figure 10.21, make the following changes:
Line 3 of the second box from the top. Change giL to giL,j
Line 4 of the first right-side box from the top. Change giV,j to giV,j
Line 2 of the second right-side box from the top. Change giV,j to giL,j
First line of SOLUTION under Example 11.2: Change 0.8000 to 0.6000.
Figure 11.26(d), triangle 414 – m: Two arrows point in the wrong direction and need to be reversed. The first is the arrow on the line L-H that points from L to the mid-point of that line. The second is the arrow that points from the ternary azeotrope to the mid-point of line L-H.
Line 2 from the bottom: Replace “25 mol% benzene and 75 mol% cyclohexane.” with 75 mol% benzene and 25 mol% cyclohexane.”
Equation (14-64): Replace (P1 – P2) with (P2 – P1).
First line below Equation (14-68): Replace the word “molalities” with “molarities”.
In Exercise 14.14, change 0.1 M HCl to 0.2 M HCl.
Figure 15.50: Interchange the labels “Fructose” and “Glucose” .
Part (a) of Exercise 15.6: Replace the word “Freundich” with “Freundlich”.