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6921521 |
Method of producing chlorine dioxide employs alkaline chlorate in a mineral acid medium and urea as a reducing agent
A method of producing chlorine dioxide (ClO 2 ) is described which employs Urea as a reducing agent to reduce alkaline chlorate (NaClO 3 or KClO 3 ) in a mineral acid medium. The method of the...
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6287533 |
Production of chlorine dioxide by chemical reduction of ammonium chlorate in aqueous acidic solution
A novel method is described whereby chlorine dioxide is produced through the chemical reduction of ammonium chlorate in an aqueous acidic solution. The reduction reaction takes place at elevated...
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5770171 |
Process for production of chlorine dioxide
A process for production of chlorine dioxide which is substantially free of by product chlorine. Chlorine-dioxide is produced from an alkali metal chlorate, a mineral acid and a reducing agent such...
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5593653 |
Metathesis of acidic by-product of chlorine dioxide generating process
Sodium sesquisulfate produced in crystalline form in a high acidity highly efficient chlorine dioxide generating process is converted by metathesis to crystalline anhydrous neutral sodium sulfate...
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5378447 |
Method for the preparation of chlorates from waste gas streams obtained from the production of chlorine dioxide
A process is disclosed for producing a dilute solution of an alkali or alkaline earth metal chlorate from a chlorine and carbon dioxide waste gaseous stream. The process of the invention can be...
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5376350 |
Plug flow process for the production of chlorine dioxide
A plug flow process for the production of chlorine dioxide by reacting chloric acid and/or an alkali metal chlorate, optionally a mineral acid and a reducing agent in such proportions that chlorine...
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5154910 |
Process for the production of chlorine dioxide
A process for the production of essentially chlorine free chlorine dioxide whereby a flow of chlorine dioxide obtained from reduction of alkali metal chlorate and containing by-product of chlorine...
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5110581 |
Chlorine dioxide generation
A process for the generation of chlorine dioxide from an alkali metal chlorate is provided that employs a waste sulphuric acid containing oxidizable organic material. Alkylation waste sulphuric...
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5066477 |
Production of chlorine dioxide
Chlorine dioxide is produced from sodium chlorate, sulphuric acid and methanol at the boiling point of the reaction medium under a subatmospheric pressure applied to a reaction zone. High purity of...
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5002746 |
Process for production of chlorine dioxide
The present invention relates to a process for production of chlorine dioxide by reacting in a reaction vessel an alkali metal chlorate, a mineral acid and methanol as a reducing agent in...
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4986973 |
Process for the production of chlorine dioxide
A process for producing chlorine dioxide by reacting in a reaction vessel an alkali metal chlorate, mineral acid and a reducing agent in such proportions that chlorine dioxide is produced in a...
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4931268 |
Production of chlorine dioxide
Chlorine dioxide is generated at high efficiency from feeds of chlorate cell liquor, sulphuric acid and methanol by a hybrid of reaction of sodium chlorate with sulphuric acid and methanol and...
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4929434 |
Catalytic generation of chlorine dioxide
A process for producing chlorine dioxide by reducing a chlorate in sulphuric acid of at least 4N with a reducing agent. An oxygen containing organic compound is introduced into the process.
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4609472 |
Process for removal of alkali metal chlorate from alkali metal chloride brines
A process for removing chlorate ions from an impure alkali metal chloride brine removed from an electrolytic cell comprises acidifying the impure brine to a pH of less than about 2. The acidified...
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4578261 |
Method to reduce the potential salt cake content of chlorine dioxide generator spent acids
A method of generating chlorine dioxide that comprises forming chloric acid by the action of sulphuric acid on a chlorate in a generator in the liquid phase. The chloric acid is reduced to produce...
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4473540 |
High efficiency chlorine dioxide process
Chlorine dioxide is formed at high efficiency from a solution of acid sodium chlorate at high sulphuric acid normality to which methanol is fed. The reaction medium is at its boiling point under a...
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4465658 |
Chlorine dioxide process
Chlorine dioxide is formed at high efficiency from a solution of acid sodium chlorate at high sulphuric acid normality in excess of 9 normal to which methanol is fed. The reaction medium is at its...
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4325934 |
Production of chlorine dioxide with conversion of by-product solid phase sodium acid sulphate to its neutral form
A highly efficient chlorine dioxide generating process which produces chlorine-free chlorine dioxide and neutral solid phase sodium sulphate from sodium chlorate, sulphuric acid and methanol is...
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4201687 |
Chloroimide fabric bleaches
A fabric bleaching composition is provided which consists essentially of water and a bleach selected from the group consisting of disodium chloroimidodisulfate, dipotassium chloroimidodisulfate and...
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4156713 |
Production of chlorine dioxide
There is provided an improved process for the production of chlorine dioxide wherein an alkali metal chlorate a reducing agent, and a mineral acid are reacted in a vessel, and the salt crystals are...
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4154809 |
High efficiency chlorine dioxide production using HCl as acid and methanol addition
The efficiency of a low actual hydrogen ion concentration chlorine dioxide producing process in which a chlorate and hydrochloric acid or hydrogen chloride are fed to a reaction medium in a single...
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4115217 |
Process for electrolytic preparation of chlorites
This invention relates to a process for the preparation of chlorite from chlorate.
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4105751 |
Process and installation for the manufacture of chlorine dioxide
Chlorine dioxide is manufactured by reducing an alkali metal chlorate in an acid medium by means of a gaseous or liquid reducing agent in at least one production reactor, with recycling of the tail...
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3322497 |
Process for the production of diluted chlorine dioxide
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3058808 |
Production of chlorine dioxide
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2881052 |
Production of chlorine dioxide
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2834649 |
Manufacture of chlorine dioxide
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3695839 |
Title is not available
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3754079 |
Title is not available
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3828097 |
Title is not available
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