Filtration using expanded styrene-polymer and polyolefin micro-b

Details Filtration using expanded styrene-polymer and polyolefin micro-b Filtration using expanded styrene-polymer and polyolefin micro-b

1980-05-19

1982-08-17

Therkorn, Ernest G.

Liquid purification or separation

Filter

Material

B01D 3904, B01D 3906

Patent

active

043448461

ABSTRACT:
Disclosed is (a) a filtration method using (i) micro-bits produced from an expanded thermoplastic polymer non-brittle in expanded form and selected from a styrene-polymer and a polyolefin from polyethylene to poly-methylpentene or (ii) mixtures of these micro-bits and inorganic filter aids as diatomaceous earth and perlite, and (b) these filter aid mixtures. These micro-bits and mixtures are useful filter aids in several different ways. One is to prepare a slurry of them in a liquid medium and feed this slurry to a filter element (as fabric filter cloth or wire filter cloth or ceramic filter) to provide on that element's feed side a precoat of the filter aid and liquid leaves as filtrate from its filtrate side.
In another way these micro-bits and mixtures are used by being admixed into the liquid (inert to them) containing finely divided material suspended or dispersed in the liquid and to be removed. Also, these micro-bits alone or mixture with diatomaceous earth or perlite can be admixed into the liquid medium. Another way to use the micro-bits or their mixture is by using the precoat route and with the liquid dispersion to be filtered containing in it these micro-bits alone or admixed with any inorganic filter aid.

REFERENCES:
patent: 2055869 (1936-09-01), Manning
patent: 3037635 (1962-06-01), Boorujy
patent: 3178021 (1965-04-01), Bray
patent: 3259571 (1966-07-01), Marshall
patent: 3274103 (1966-09-01), Adams
patent: 3327859 (1967-06-01), Pall
patent: 3707398 (1972-12-01), Charlesworth
patent: 3812031 (1974-05-01), McCoy
patent: 3880754 (1975-04-01), Brost
patent: 4070287 (1978-01-01), Wiegand
patent: 4145284 (1979-03-01), Neu

Affiliated with

Also associated with

Rating

Filtration using expanded styrene-polymer and polyolefin micro-b does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Filtration using expanded styrene-polymer and polyolefin micro-b, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Filtration using expanded styrene-polymer and polyolefin micro-b will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-185982