Chemical engineering
Print ISSN : 0375-9253
On the Ruth's Coefficient of Constant-pressure-Filtration
Filtration of Slurries for Ignition-Plugs
Sakio OkamuraMompei Shirato
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JOURNAL FREE ACCESS

1954 Volume 18 Issue 2 Pages 59-63

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Abstract
Slurries for ignition-plugs were filtered at constant pressure. Ruth's coef. of filtration K for the slurries was found to be independent of V when s≥0.20, but to be a function of V when s≤0.17.
In cases, where 0.45≥s≥0.20, we obtained the equation:
and
Nomenclature:
K=Ruth's coefficient of Constant-pressure filtration (l2/min), i.e. (V+C)2=K(θ+θ0)(K20=K at 20°C).
V=filtrate volume (l) at time θ(min).
A=filter cloth area (dm2).
ΔP=Pressure drop (kg/cm2).
μ=filtrate viscosity in c. p. (μ20=μ at 20°C)
ρ=filtrate density (kgm/l).
m=ratio of wet cake weight to dry cake weight.
s=slurry concentration in gm solid per gm slurry.
α=Ruth's specific resistance.
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© by THE SOCIETY OF CHEMICAL ENGINEERS, JAPAN
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