Main > PAPER & PULP > Pulp > Water > Treatment > ClO2 Aq Soln Electrochemical Mfg

Product Canada. S

PATENT ASSIGNEE'S COUNTRY Canada
UPDATE 10.99
PATENT ASSIGNEE This data is not available for free
PATENT CLAIMS - Feeding an aq soln of Na chlorite to an anodic compart
ment of an electrochemical cell divided by ion-permeable
separator from a cathode compartment to which water or aq
electrolyte is fed
- Electrochemically generating a first aq soln of ClO2 in the
anodic compartment of said cell in presence of 20-450 gpL
Na chlorate
- Contacting said aq soln of ClO2 with one face of a hydropho
bic microporous membrane &
- Providing a differential of partial pressure of both said ClO2
& water vapor between said aq soln & an aq recipient me
dium in contact with the opposite face of said hydrophobic
microporous membrane, whereby both ClO2 & water vapor
pass through the membrane to the recipient medium to form
a second aq soln of ClO2 as product
PATENT PHOTOCOPY Available on request

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