US 2004/0104127 A1Published application

Process and composition for obtaining an aqueous chlorine dioxide ready for its use, stabilized in a carbonate buffer, being a powerful disinfecting agent with ecological, non residual non toxic and non phytotoxic cataloging in the concentrations of usage

OwnerJuan Luis Araya Rojasinventor

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Abstract

The process and composition for to obtain chlorine dioxide in aqueous solution, ready to use, stabilized in buffer carbonate, being a powerful disinfectant agent, environmental classification, non residual, non toxic and non phytotoxic at use concentrations, characterized because the process understands an analysis of raw materials mainly the chloride metallic, main component for the reaction; it gets ready brines solution, the brine is a solution of sodium chloride at 20° C.-25° C. with soft water, the brine concentrations is at 9 to 15% parts in weight; then the brines are made go by an electrochemical cell, this cell are forming with silicoses iron, the composition is unknown, but is the same panels used in light conversion (DC/AC transformation) panels; the difference of potential is caused in voltaic cells at laminar regime, so that it produces the oxidation of the metallic chloride and to obtain in direct form the active principle of the invention, chlorine dioxide.

Claims5

Dependent claims

A process and composition to obtain a aqueous chlorine dioxide solution, ready to use, stabilized in buffer carbonate, being a powerful disinfectant agent, environmental classification, non residual, non toxic and non phytotoxic at use concentrations, wherein the process understands the following steps:

The first step is raw materials analysis, mainly the metallic chloride, because is a principal component in the reaction.
The brine preparation is at 20° C.-25° C. with soft water at final concentration of 9 to 15% weight parts, this solution is analysed.
After being under conditions the brine solution for the reaction, it is made go by an electrochemical cell with silicose iron panels (anodes and cathodes).
A difference of potential is caused in voltaic cell at laminar regime, so that it produces the oxidation of the metallic chloride and to obtain in direct form the active principle of the invention, chlorine dioxide.
In the anode the difference of potential promote water hydrolysis, and alkaline hydroxide is generated.
The anode the addition of constantly flows of carbon dioxide and liquid oxygen in order to eliminate the hydrogen formation and that the hydroxide alkaline metal is converted in carbonated salt.
At the end point of the electrochemical cell, it is obtained a mixture of aqueous chlorine dioxide gradually among 5 to 7% weigh parts, sodium carbonate, among 3 to 5% weighs parts and sodium bicarbonate among 3 to 5% weight parts and sodium chloride among 3 to 7% weight parts.
The concentration of the invention and their by-products, they are controlled by voltaic cell the step is a brine addition in order to achieve the required concentration at the end of the line.
Being obtained at the end a slightly yellowish clear product to a temperature of 10-12° C.

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Dependencies are inferred from the claim text.