Rio Linda Chemical Company Inc.

Rio Linda Chemical

Bruce W Hicks

John Y Mason

Donald C English

Jerry D Hicks

An aqueous solution, preferably an aqueous disinfectant solution, containing chlorine dioxide and which is capable of forming a foam, and methods for the preparation and use thereof. An aqueous disinfectant solution capable of forming a foam is prepared by adding a foaming agent, i.e., a suitable surfactant, to water. Chlorine dioxide may then be added to the solution or it may be generated in situ by reacting an oxidizing agent, a cationic exchange resin in the acidic form, or an acid with a metal chlorite dissolved therein. The resultant foam solution may subsequently be foamed by being mixed with air in a foam generator. The foam solutions of the instant invention are useful as cleaning and/or sanitizing agents.

Aqueous foam disinfectant containing chlorine dixoide and preparation

An aqueous solution, preferably an aqueous disinfectant solution, containing chlorine dioxide and which is capable of forming a foam, and methods for the preparation and use thereof. An aqueous disinfectant solution capable of forming a foam is prepared adding a foaming agent, i.e., a suitable surfactant, to water. Chlorine dioxide may then be added to the solution or it may be generated in situ by reacting an oxidizing agent, a cationic exchange resin in the acidic form, or an acid with a metal chlorite dissolved therein. The resultant foam solution may subsequently be foamed by being mixed with air in a foam generator. The foam solutions of the instant invention are useful as cleaning and/or sanitizing agents.

Aqueous foam containing chlorine dioxide composition and preparation

A dry composition for the sustained, controlled production of gaseous chlorine dioxide comprising a dry, inert diluent; a metal chlorite selected from the group consisting of alkali metal chlorites and alkaline earth metal chlorites; and a dry agent capable of reacting with a metal chlorite in the dry state to produce chlorine dioxide, said agent being selected from the group consisting of dry oxidizing agents and dry acids. The composition of the invention is manufactured using solely dry constituents, thereby obviating an intensive drying step and resulting in substantial savings as well as simplifying the manufacturing process. The compositions of the invention find particular utility in applications involving the controlled generation of chlorine dioxide for a sustained period of time for the preservation of boxed fruits and vegetables during transportation or in deodorizing enclosed spaces such as refrigerators or lockers.

Dry compositions for the production of chlorine dioxide

Process for the generation of chlorine dioxide by the essentially instantaneous reaction of a relatively concentrated aqueous solution of a metal chlorite and an oxidizing agent, preferably gaseous chlorine. The reaction is carried out in a generator having a mix and dwell premix chamber interconnected with a source of vacuum, preferably a venturi. The relatively concentrated aqueous metal chlorite solution and the oxidizing agent are allowed to mix and react in the premix chamber prior to any dilution as, for example, by water or other fluid flowing through the venturi eductor to deliver the generated chlorine dioxide to storage or utilization. When the oxidizing agent is chlorine, it is preferred for the chlorine stream to contain some bleed water in an amount below that which would significantly dilute the reactants and thereby have a quenching effect on the reaction. The presence of bleed water prevents a buildup of metal chloride on the chlorine inlet to the premix chamber.

Process for the generation of chlorine dioxide

A foam generating and distributing manifold device for generating and transporting foam cleansing and sanitizing agents having a manifold chamber with a centrally disposing frothing tube to generate foam which migrates upwardly within the chamber to a plurality of annularly disposed egress ports through which foam is distributed to a series of substantially equidistant supply conduits thereafter migrating to a distribution manifold which distributes the foam evenly upon, for example, conveyor belts used in food processing or the like.

Foam generating and distributing manifold apparatus

The present invention is directed to a chlorine dioxide generation process. The Novel process of this invention utilizes concentrated hydrochloric acid solution reacted with concentrated sodium chlorite solution, without prior dilution of either reactant. Resulting in consistent high efficiency with respect to yield and chemical consumption.

Chlorine dioxide generation process

The present invention is directed to a chlorine dioxide generation apparatus and to a method of generating chlorine dioxide utilizing this apparatus. The novel apparatus comprises a generator having a mix and dwell premix chamber interconnected with a venturi preferably, or to some other source of vacuum, undiluted reactants are permitted to mix and react in the premix chamber, prior to any dilution as by water or other fluid flowing through a venturi eductor to deliver the generated chlorine dioxide to its place of storage or utilization.

Growing community of inventors

Rio Linda, CA, United States of America

Bruce W Hicks