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7504074 |
Chlorine dioxide generation systems
A chloride dioxide generation system made efficient by the use of a minimum number of seals and the use of a sophisticated computerized control system with the chlorine dioxide generation system...
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7488457 |
Systems and methods for generating chlorine dioxide
Processes for generating chlorine dioxide generally include acidifying an alkali metal chlorite solution; and contacting the acidified alkali metal chlorite solution with a solid phase chlorine...
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7452511 |
Reactor for production of chlorine dioxide, methods of production of same, and related systems and methods of using the reactor
A novel chlorine dioxide production apparatus, or reactor, is disclosed. The reactor receives reactants from two or more feed pipes under pressure, and the reactants react in a reaction chamber...
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7407642 |
Chlorine dioxide generation method
A method generating chlorine dioxide is provided. The method uses sodium chlorite solution and diluted sulfuric acid to generate chlorine dioxide with a significantly higher rate of conversion of...
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7407641 |
Method for generating chlorine dioxide
A chlorine dioxide generator comprises a water eductor surrounded by a variable volume plenum. The plenum casing is threaded onto the venturi body, permitting the plenum volume and area to be...
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7303737 |
Generation of chlorine dioxide
A method for point-of-use generation of chlorine dioxide wherein the chlorine dioxide is generated quickly and at acceptable concentrations to avoid the need for subsequent dilutions and keeping...
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7261821 |
Process for treating an aqueous system with chlorine dioxide
This invention relates to an automated process for efficiently treating an aqueous system with chlorine dioxide. The process results in high efficiency yields of chlorine dioxide on a continuous...
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7252772 |
Method for producing an essentially chlorite-free, stable aqueous chlorine-oxygen solution, the chlorine-oxygen solution obtained by means of said method, and the use of the same
The invention relates to a method for producing an essentially chlorite-free, stable, aqueous chlorine-oxygen solution. Said method comprises the following steps: (1) a hydrogen sulfate compound is...
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7252096 |
Methods of simultaneously cleaning and disinfecting industrial water systems
On-Line and Off-Line methods of simultaneously cleaning and disinfecting an industrial water system are described and claimed. The methods involve the addition to the water of the industrial water...
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7241435 |
System and process for producing halogen oxides
A system and process for oxidizing inorganic or organic species is disclosed. The system and process includes mixing a dilute aqueous alkali metal halite solution with a mixture of protic acids to...
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7220367 |
Method and system for the controlled release of chlorine dioxide gas
Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the...
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7182883 |
Massive bodies containing free halogen source for producing highly converted solutions of chlorine dioxide
A massive body, e.g., a tablet, for producing a solution of chlorine dioxide when the massive body is added to liquid water. The massive body comprises a metal chlorite such as sodium chlorite, an...
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7160484 |
Method and device for the production of an aqueous solution containing chlorine dioxide
The present invention is generally directed to a method of producing an aqueous solution of chlorine dioxide from the reaction of a metal chlorite and an acid forming component which do not react...
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7087208 |
Methods for making chlorous acid and chlorine dioxide
Chlorous acid is generated from a chlorite salt precursor, a chlorate salt precursor, or a combination of both by ion exchange. The ion exchange material facilitates the generation of chlorous acid...
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7077995 |
Method for treating aqueous systems with locally generated chlorine dioxide
The present invention provides a new method for the in situ generation of chlorine dioxide from a solution of sodium chlorite and carbon dioxide. The present invention produces effective levels of...
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6764661 |
Device for producing an aqueous chlorine dioxide solution
A device for producing an aqueous chlorine dioxide solution when placed in water. The device includes a membrane shell that defines a compartment which includes one or more dry chemicals (e.g., a...
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6761872 |
Method for generating chlorine dioxide
The present invention provides a new method for the in situ generation of chlorine dioxide from a solution of sodium chlorite and carbon dioxide. The present invention produces effective levels of...
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6716354 |
Methods of treating water using combinations of chlorine dioxide, chlorine and ammonia
Raw water is treated with chlorine, chlorine dioxide and ammonia in various stages as it proceeds from raw water acquisition through clarification (e.g., coagulation, flocculation, sedimentation,...
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6676850 |
Method, composition and system for the controlled release of chlorine dioxide gas
Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the...
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6663902 |
Method and composition for the generation of chlorine dioxide using Iodo-Compounds, and methods of use
The present invention relates to a biocidal composition, designed for the generation of chlorine dioxide, comprising at least one iodo-compound having at least one iodine atom and a source of...
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6645457 |
Method of generating aqueous chlorine dioxide
A solid-state chlorine dioxide generator for generating an aqueous solution of ClO 2 is formed within a block comprising an eductor for establishing a vacuum pressure and a reaction column for...
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6635230 |
Method for producing chlorine dioxide
A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and optionally also a water-retaining substance such...
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6620380 |
Method, device and composition for the sustained release of an antimicrobial gas
A unitary container housing having a plurality of sealed compartments each containing a dry composition which will gradually release an antimicrobially active gas upon exposure to moist air, and...
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6605558 |
Composition for producing chlorine dioxide
A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and optionally also a water-retaining substance such...
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6555085 |
Method of improving yield of chlorine dioxide generation processes
A greater yield of chlorine dioxide from a chlorine dioxide generating process is obtained by providing acidic or acidity-generating components in the product chlorine dioxide solution to provide a...
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6458735 |
Method of producing chlorine dioxide using a metal chlorite and a water-retaining substance
A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and optionally also a water-retaining substance such...
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6451253 |
High concentration chlorine dioxide gel composition
High concentration chlorine dioxide gel compositions are prepared for disinfectant, deodorizing and for like uses. The preferred gel compositions are prepared from xanthan, guar or like gums.
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6428696 |
Process for preparing a chlorine-dioxide-containing disinfectant solution for water treatment
The present process proceeds from an aqueous reaction solution containing a chlorite and a halogen-free oxidizing agent which is present in an excess of up to double the required stoichiometric...
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6399039 |
Method for the synthesis of chlorine dioxide
Chlorine dioxide is generated from an aqueous solution of sodium chlorite in the presence of a catalyst having a reduced rate of deactivation. The catalyst is preferably palladium, or palladium...
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6379643 |
Method of producing chlorine dioxide using sodium chlorite and a water-retaining substance in aqueous solution
A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and optionally also a water-retaining substance such...
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6322768 |
Recovery of chlorine dioxide from gas streams
A method for recovering chlorine dioxide from a gas. The method involves contacting gas containing chlorine dioxide with an alkaline metal base and peroxide to form an alkaline metal chlorite...
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6294108 |
Composition for the controlled release of chlorine dioxide gas
Method, composition and system for generating chlorine dioxide gas in a controlled release manner by combining at least one metal chlorite and a dry solid hydrophilic material that reacts with the...
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6231830 |
Method of making molecular chlorine dioxide
A method for manufacturing molecular chlorine dioxide, by the addition of potassium iodide to a solution of alkali metal chlorite. The metal chlorite and the potassium iodide are kept separate,...
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6171485 |
Process for producing a chlorine dioxide-containing disinfectant solution for water treatment
The present process proceeds from an aqueous reaction solution containing a chlorite and a halogen-free oxidizing agent which is present in an excess of up to double the required stoichiometric...
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6071483 |
Reactor vessel and process for preparing a controlled-dosage chlorine dioxide solution
A reactor vessel and an associated process for preparing a controlled-dosage chlorine dioxide solution. The vessel according to the invention comprises a hollow body inside which there are provided...
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6042802 |
Method and apparatus for generating and using chlorine dioxide
The present disclosure relates to a method for generating a volume of chlorine dioxide based sterilant/disinfectant. The method includes the step of generating chlorine dioxide gas, and...
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5989497 |
Process and apparatus for deodorizing malodorous substances with a chlorine dioxide-containing composition
A process and apparatus are provided for deodorizing malodorous solids, liquids, and/or gases by contacting them with a mist of an aqueous deodorizing solution consisting of an alkali metal or...
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5968454 |
Chlorine dioxide generator
An apparatus and method for generating chlorine dioxide. Reagents are introduced into the lower end of a reaction column through "V" inlets. The reagent column surrounds a center column through...
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5895638 |
Method of producing chlorine dioxide
The invention relates to a process of producing chlorine dioxide by the reduction of chlorate ions with hydrogen peroxide as a reducing agent in a tubular reactor, preferably in the presence of a...
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5885543 |
Method for producing chlorine dioxide using calcium chloride impregnated zeolite or aqueous calcium chloride
A method for producing chlorine dioxide by activating zeolite crystals (which have been impregnated with metal chlorite such as sodium chlorite, and a water-retaining substance such as magnesium...
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5855861 |
Method and apparatus for making aqueous chlorine dioxide
A method of forming an aqueous chlorine dioxide solution is disclosed which includes reacting in a reaction vessel an acid reaction solution containing a hydroxy carboxylic acid and a companion...
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5853689 |
Method for producing chlorine dioxide by activating an impregnated zeolite crystal mixture, and mixtures for performing such method
A method for producing chlorine dioxide by activating a mixture of impregnated zeolite crystals, the mixture itself, and a method for regenerating the mixture after chlorine dioxide production. The...
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5730948 |
Method for producing chlorine dioxide using chemically impregnated zeolite
A method for producing chlorine dioxide by moving fluid (such as air) relative to (e.g. flowing the fluid through) a first bed of zeolite crystals impregnated with at least one of the following:...
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5693252 |
Generation of chlorine dioxide in a non-aqueous medium
A method of preparing chlorine dioxide in a non-aqueous liquid is disclosed. An aqueous solution of chlorine dioxide is mixed and agitated with a non-aqueous liquid. The chlorine dioxide is...
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5676920 |
Chlorine dioxide generating process
Chlorine dioxide is produced by reaction of sodium chlorate, a reducing agent, preferably methanol or hydrogen peroxide, and sulfuric acid at the boiling point of the reaction medium under a...
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5651996 |
Method and compositions for the production of chlorine dioxide
The present invention relates to a method for producing chlorine dioxide (ClO 2 ) disinfecting solution which preferably minimizes the amount of residual chlorite ion (ClO 2 --) so that the...
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5639295 |
Method of making a composition containing a stable chlorite source
A process for preparing a composite which provides sustained release of chlorine dioxide which includes mixing a hydrophilic material containing an amine and a base with a hydrophobic material...
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5618440 |
Method and apparatus for treating and disinfecting water and/or wastewater
A novel method and apparatus is provided for treating and/or disinfecting water and/or wastewater wherein the contact chamber is sealed and under greater than atmospheric pressure having a...
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5611920 |
Biocide treatment system and method
A system and method for the delivery and application of a biocide treatment to a facility. A specially adapted vehicle is used to transport biocide precursors, and a generator capable of generating...
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5599518 |
Catalytic process for chlorine dioxide generation from chloric acid
A process and apparatus for producing chlorine dioxide comprising chemically reducing chloric acid with water in the presence of any oxygen-evolving catalyst and in the absence of another acid or...
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