Page 353 - Chemical Process Equipment - Selection and Design
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316 SOLID-LIQUID SEPARATION
15
10
5
1 1.5 2 2.5 3 3.5
(a)
10’0
1 10 100 1,000
Compressive pressure [P, 1, psia Compressive pressure IPS ), psia
1-Superlite CaCO, (flocculated), pH = 9.8 4-R-llOgrade TiO,,pH= 3.5
2-Superlite CaCO,. pH = 10.3 5-Zns, Type B, pH = 9.1
34-1 10 grade Ti02 (flocculated), pH = 7.8 6-ZnS, Type A, pH = 9.1
Figure 11.4. Data of compressibilities and porosities of filter cakes. (a) Parameters of the correlation CY = w0(AP)” for resistivity of CaSiO,
filter cakes at two rates and two concentrations (Rushton and Katsoulas, 1984). (b) Resistivity as a function of pressure measured in a
compressibility-permeability (CP) cell [Grace, Chem. Eng. Prog. 49, 303, 367, 427 (1953)l. (c) Porosity as a function of pressure for the
same six materials (Grace, loc. cit.).
