Method for purifying reaction solution obtained by using microbi

Details Method for purifying reaction solution obtained by using microbi Method for purifying reaction solution obtained by using microbi

1985-11-18

1989-07-04

Spear, Frank

Liquid purification or separation

Processes

Liquid/liquid solvent or colloidal extraction or diffusing...

21050023, 210651, B01D 1300

Patent

active

048448095

ABSTRACT:
A method for purifying a reaction solution obtained by using a microbial cell, an immobilized microbial cell, or an immobilized enzyme as a catalyst in a water medium is disclosed. The method comprises repeatedly filtering the reaction solution to remove fine solid matter using a polyethylene porous hollow fiber membrane having a bubble point of from 1 to 20 kg/cm.sup.2, and repeatedly washing the hollow fiber membrane before it has been clogged to such an extent that a differential pressure thereof exceeds 3 kg/cm.sup.2. By this method, a filter membrane can be repeatedly regenerated at high efficiency and can stably be used for a long period of time.

REFERENCES:
patent: 4614717 (1986-09-01), Kachholz et al.

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