Inorganic tubular filter element including channels of non-circu

Details Inorganic tubular filter element including channels of non-circu Inorganic tubular filter element including channels of non-circu

1996-12-05

1999-02-23

Walker, W. L.

Liquid purification or separation

Casing divided by membrane into sections having inlet

Each section having inlet

21032187, 21032189, 2105101, 96 4, 96 9, 96 12, B01D 6306

Patent

active

058739980

ABSTRACT:
The invention relates to an inorganic filter element comprising:
a rigid inorganic porous support; and
channels classifiable into n categories where n.gtoreq.2, with all of the channels in each category having identical right cross-section, identical hydraulic diameter, and identical equivalent diameter, the shapes of the right cross-sections of the channels differing between categories.
According to the invention, the channels of the various categories have:
hydraulic diameters such that the ratios between any two hydraulic diameters lie in the range 0.75 to 1.3;
right cross-sectional areas such that the ratios between any two right cross-sectional areas lie in the range 0.75 to 1.3; and
equivalent diameters such that the ratio of the equivalent diameter over the hydraulic diameter of each channel is less than or equal to 2.

REFERENCES:
patent: 4222874 (1980-09-01), Connelly
patent: 4358428 (1982-11-01), Fujita et al.

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