Liquid purification or separation – Filter – Material
Patent
1979-03-23
1980-04-08
Therkorn, Ernest G.
Liquid purification or separation
Filter
Material
B01D 3900
Patent
active
041972082
ABSTRACT:
Synthetic, granular filter particles which are of substantially uniform size, of controlled density, and water-wettable. A method is provided for manufacturing such particles in uniform sizes ranging from about 1/16 to about 3/8 inch and at controlled densities ranging from a specific gravity of about 1.04 to about 1.5. The particles comprise hollow silica beads dispersed in a matrix of cured cement. In deep bed, multi-layer liquid filters, the particles can be utilized as the upper strata of the filter and act as a barrier for particles that would normally plug a deep bed filter having conventional, natural materials, such as sand in the lower strata. Alternatively, all of the strata of the deep bed filter may be comprised of the particles of the present invention in substantially uniform, controlled sizes and densities, the size of the particles decreasing and the density of the particles increasing in the direction of flow through the filter bed.
REFERENCES:
patent: 2145901 (1939-02-01), Shoemaker
patent: 2303629 (1942-12-01), Gelinas
patent: 2585366 (1952-02-01), Bollaert
patent: 3104196 (1963-09-01), Shannon
patent: 3233741 (1966-02-01), Bell
patent: 3247294 (1966-04-01), Sabouni
patent: 3396123 (1968-08-01), Urban
patent: 3424674 (1969-01-01), Webber
patent: 3704786 (1972-12-01), Lerner
patent: 3728208 (1973-04-01), Whittington
patent: 3814247 (1974-06-01), Hirs
patent: 3862963 (1975-01-01), Hoshi et al.
patent: 4010232 (1977-03-01), Labrecque
patent: 4025689 (1977-05-01), Kobayashi
LandOfFree
Synthetic granular filter material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synthetic granular filter material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synthetic granular filter material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-972814