Filtering process using inorganic synthetically prepared filter

Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow

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210 82, B01D 2316

Patent

active

040737292

ABSTRACT:
A process for removing solids from a liquid wherein the liquid is passed through a bed of filter media comprising discrete, inorganic, artificially produced filter sand, and wherein the artificially produced filter sand has grain densities of between about 1.0 to 2.2 grams per cubic centimeter and grain diameters of between about 0.3 and 10 mm and the grain density decreases with increasing grain diameter.

REFERENCES:
patent: 293745 (1884-02-01), Hyatt
patent: 3184371 (1965-05-01), Seidl
patent: 3235635 (1966-02-01), Riede
patent: 3343680 (1967-09-01), Rice et al.
patent: 3471025 (1969-10-01), Dobson

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