METHOD OF PRODUCING STABLE OXY-CHLORO ACID
The invention is a method of producing stable chlorous acid for use as a cleaning agent and biocidal composition. The method passes a salt of an oxy-chloro acid over a resin to allow for an ion exchange that produced the oxy-chloro acid. The invention allows for the production of a stable chlorous acid that can be used as a biocidal agent and a cleaning agent without the effect on many surfaces or membranes as normal oxy-chloro compositions.
1 . A method for producing a stable oxy-chloro biofouling control agent where in a salt of the oxy-chloro acid and a solvent are passed through an activated resin bed at a low concentration to produce a stable oxy-chloro acid at a pH of 2.5 or below.
2 . The method of claim 1 wherein the salt of the oxy-chloro acid is a chlorite.
3 . The method of claim 1 wherein the salt of the oxy-chloro acid is a chlorate.
4 . The method of claim 2 wherein the chlorite is sodium chlorite.
5 . The method of claim 3 wherein the chlorate is sodium chlorate.
6 . The method of claim 1 wherein the concentration of the salt of the oxy-chloro acid is fed into the resin bed at a concentration of 1500 ppm or lower.
7 . The method of claim 1 wherein the oxy-chloro acid is produced with a pH no less than 2.2.
8 . The method of claim 1 wherein the solvent is solution of alkali or alkaline earth salts and water.
9 . The method of claim 1 wherein the solvent passed through the resin bed with the salt of the oxy-chloro acid is water.
10 . The method of claim 1 wherein the resin in the resin bed is composed of a cation exchange resin.
11 . The method of claim 1 wherein the oxy-chloro acid produced is Chlorous acid.
12 . The method of claim 11 wherein the production quality of the chlorous acid is measured spectroscopically wherein the measured spectra determines the percentage of chlorous acid in a composition.
13 . The method of claim 12 wherein the spectrophotometric device is in the resin bed where the salt of the oxy-chloro acid is passed through to become the chlorous acid.