Process for filtering a cellulose acetate solution

Details Process for filtering a cellulose acetate solution Process for filtering a cellulose acetate solution

1977-09-06

1979-01-02

Cuchlinski, Jr., William A.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

B01D 3702

Patent

active

041326423

ABSTRACT:
A process for filtering a cellulose acetate solution comprises the steps of providing a solution of cellulose acetate which is dissolved in an organic solvent; adding to the solution a quantity of loose particulate matter and loose fibers so as to form a mixture; and filtering the solution through pores of a filter medium so as to produce a filtrate of the solution, whereby due to addition of the loose particulate matter and the loose fibers clogging of the pores is reduced relative to the amount of filtrate passing through the pores and the effective filtering time of the filtering medium is thereby increased.

REFERENCES:
patent: 2205331 (1940-06-01), Alton
patent: 2214943 (1940-09-01), Tinsley
patent: 3178021 (1965-04-01), Bray
patent: 3251469 (1966-05-01), Muller

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