Membrane separation process

Details Membrane separation process Membrane separation process

1990-03-21

1991-02-26

Spear, Frank

Liquid purification or separation

Processes

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

210641, 210651, B01D 6116

Patent

active

049959832

ABSTRACT:
It has been found that certain chemicals such as peroxide may be concentrated in an aqueous solution by increasing the pH of a feed liquor to increase the amount of the chemcial in an ionized form, i.e. increase the ionized fraction and then separating the feed liquor by reverse osmosis through a reverse osmosis membrane into a retentate having an enhanced concentration of chemical in ionized form relative to the feed liquor and a permeate having a reduced concentration of chemical in ionized form relative to the feed liquor. The process is particularly suited to increasing the concentration of hydrogen peroxide.

REFERENCES:
patent: 4574049 (1986-03-01), Pittner
patent: 4602982 (1986-07-01), Samuelson

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