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7604720 |
Process for the on-site production of chlorine and high strength sodium hypochlorite
The present invention relates to a novel economical on-site electrochemical based membrane cell based process with the capability of producing high strength sodium hypochlorite and/or elemental...
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7578991 |
Concurrent low-pressure manufacture of hypochlorite
A process for efficient, low-pressure production of sodium or potassium hypochlorite. A liquid containing hypochlorite is introduced into a mixing chamber to create a dispersed liquid phase moving...
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7175824 |
Manufacture of high-strength, low-salt sodium hypochlorite bleach
A process and apparatus for the manufacture of high-strength, low-salt sodium hypochlorite. An aqueous solution that comprises certain weight percentages of sodium hypochlorite and sodium hydroxide...
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6855307 |
Pressurized solution feed system for introducing hypochlorous acid to a fluid stream
A system and method are disclosed for increasing the concentration of hypochlorous acid in a quantity of water. Acid is injected into chlorinated water to decrease the pH of the chlorinated water....
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6617447 |
Continuous oxidized starch process
The present invention relates to a method of starch production using continuous oxidation. This method allows for the starting material to contain variable amounts of non-starch products, which is...
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6409981 |
Process for removing chlorine from gas stream
A process for the scrubbing of chlorine is scrubbed from a chlorine-containing gas using an aqueous feed liquor containing an excess of alkali to give an effluent liquor containing chloride and...
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6048513 |
Method for synthesis of hypohalous acid
This invention is a method for forming hypohalous acid in a mass transfer device. The method comprises: (1) feeding into the device a stream of caustic solution comprising at least one alkali or...
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5961879 |
Process for the manufacture of hypochlorite bleaching compositions
The present invention discloses a process for the manufacture of liquid aqueous bleaching compositions comprising hypochlorite, a strong source of alkalinity and water, said process comprising the...
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5928559 |
Process for the manufacture of hypochlorite bleaching compositions
The present invention discloses a process for the manufacture of liquid aqueous bleaching compositions comprising alkali metal hypochlorite, a strong source of alkalinity and water; said process...
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5641520 |
Halogen compositions for water treatment
A method for providing aqueous solutions of HOBr or HOCl which includes adding bleach (NaOCl) to a solution of HBr or HCl an identified absorbance or color change in the resulting solution is...
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5532389 |
Process for preparing alkylene oxides
A process of preparing alkylene oxides comprises steps of: (1) optionally forming a hypochlorite solution; (2) contacting chlorine with a solution of a hypochlorite below about 60° C., and a pH of...
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5516501 |
Process for the preparation of aqueous solutions of bromine based disinfectants
Processes for preparing a relatively concentrated aqueous solution of about 700-3000 ppm hyprobromous acid are provided. Hypochlorous acid solutions are prepared by either reacting chlorine gas...
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5422126 |
Halogen compositions for water treatment and method of preparation thereof
A method for providing aqueous solutions of HOBr or HOCl which includes adding bleach (NaOCl) to a solution of HBr or HCl until an identified absorbance or color change in the resulting solution is...
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5322677 |
Process for producing concentrated hypochlorous acid solutions
A process for producing an aqueous hypochlorous acid solution reacts droplets of an alkali metal hydroxide solution containing greater than 50 percent by weight of the alkali metal hydroxide with...
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5236614 |
Stable microemulsion disinfecting detergent composition
Low viscosity and high pH disinfecting and bleaching all purpose cleaning compositions in microemulsion form, suitable in both concentrated and diluted forms for applying to surfaces to be cleaned...
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5229027 |
Aqueous liquid automatic dishwashing detergent composition comprising hypochlorite bleach and an iodate or iodide hypochlorite bleach stabilizer
The present invention relates to an aqueous liquid automatic dishwashing detergent composition which have improved hypochlorite bleach stability. The detergent composition comprises hypochlorite...
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5194238 |
Process for the production of highly pure concentrated slurries of sodium hypochlorite
A process for producing sodium hypochlorite slurries admixes a hypochlorous acid solution having a concentration of 35 percent or greater by weight of HOCl with sodium hydroxide at a temperature...
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5116593 |
Method of producing a hypohalogenated acid
A method of using an elongated, generally vertically extending cocurrent reactor vessel for the production of hypochlorous acid by the mixing and reaction of a liquid alkali metal hydroxide and a...
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5116594 |
Salt handling apparatus for a hypochlorous acid reactor
Apparatus for the separation of a solid salt by-product from the product gaseous hypohalogenated acid of a reactor is disclosed which is effective to separate particles ranging in size from about...
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5102648 |
Process for the production of lithium hypochloride
A process for producing lithium hypochlorite which admixes an aqueous hypochlorous acid solution, having a concentration of 35 percent or greater by weight of HOCl, with an aqueous slurry of...
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5089095 |
Electrochemical process for producing chlorine dioxide from chloric acid
A process for producing chlorine dioxide by oxidizing a hypochlorous acid solution to produce a chloric acid solution, and, electrolyzing the chloric acid solution to produce chlorine dioxide. The...
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5037627 |
Hypochlorous acid process
A process for producing hypochlorous acid by reacting an aqueous solution of an alkali metal hydroxide in droplet form with gaseous chlorine to produce hypochlorous acid vapor and solid alkali...
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5028408 |
Process for the production of lithium hypochlorite
A process for producing lithium hypochlorite comprises admixing an aqueous hypochlorous acid solution having a concentration of 35 percent of greater by weight of HOCl with an aqueous slurry of...
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4990286 |
Zinc oxyfluoride transparent conductor
Transparent, electrically conductive and infrared-reflective films of zinc oxyfluoride are produced by chemical vapor deposition from vapor mixtures of zinc, oxygen and fluorine-containing...
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4879047 |
Effluent treatment
A catalyst for decomposing an oxidising agent, such as hypochlorite ions, in an effluent comprises an intimate mixture of at least one finely divided Group IIA oxide and finely divided nickel...
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4857292 |
Process for the production of calcium hypochlorite and product obtained by this process
An aqueous sodium hypochlorite solution (3) is added, in a quantity which is deficient relative to that required to decompose the entire amount of calcium chloride, to an aqueous calcium chloride...
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4838941 |
Magnesium cement
A reaction product of at least one of magnesium carbonate and magnesium silicate, with a metal chloride at a temperature exceeding 300° C. Such a product, when mixed with water, sets to be an...
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4820881 |
Decolorization
A process to decolorize and stabilize nitro compounds by contacting the nitro compound with an alkaline earth metal hypochlorite particulate material.
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4780303 |
Continuous process for the preparation of high strength sodium hypochlorite solutions
Processes for the continuous preparation of high concentration sodium hypochlorite which controls sodium chloride formed to prevent fouling of heat exchanger equipment and to provide sodium...
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4744956 |
Continuous reaction of gases with liquids
A continuous system, process and associated apparatus are disclosed for reacting a gas with a liquid to manufacture a gaseous or liquid product. The preferred system comprises a reactive gas, such...
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4605537 |
Sulfide as a hypochlorite kill agent
Residual hypochlorite contained in chlorinated slurries of either carbonaceous gold-containing ores or mixtures of carbonaceous and oxide gold-containing ores are reduced by reaction with sulfide...
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4594232 |
Process for preparing pentafluorotellurium hypofluorite
A novel method for synthesizing pentafluorotellurium hypofluorite by effecting a reaction between B(OTeF 5 ) 3 and elemental fluorine.
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4508697 |
Hypochlorite destruction using urea
A process for destroying waste alkali metal hypochlorite such as sodium hypochlorite is disclosed. The process involves reacting 50-90% and preferably 70-90% of the alkali metal hypochlorite with...
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4504456 |
Process and apparatus for the manufacture of hyprochlorous acid
A process and apparatus for the manufacture of chloride-free hypochlorous acid using hydrolyzing of chlorine with steam and water vapor, solid-gas stripping of the co-generated hydrochloric acid...
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4496452 |
Apparatus and process for producing chlorine gas and for employing such chlorine gas for the production of chlorine water
An electrolytic cell for the electrolysis of a sodium chloride solution includes a cathode compartment having therein a cathode for producing hydrogen during electrolysis and an anode compartment...
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4472254 |
Electric plasma discharge combustion synthesis of chlorine dioxide
A process for the production of chlorine dioxide comprises feeding an inert gas to a reaction zone and applying an electrical discharge to the inert gas to produce a high temperature plasma....
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4472362 |
Regeneration of crystalline lithium aluminates
Crystalline 2-layer lithium aluminate, especially when carried in an ion exchange resin, is regenerated for use as an extractor for Li + values in aqueous solution, said regeneration being done by...
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4462975 |
Synthesis of pentafluorotellurium hypofluorite
The present invention concerns itself with a method for synthesizing hypofluorite compounds by utilizing fluorine fluorosulfate as a fluorinating agent and to a novel pentafluorotellurium...
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4428918 |
Process and plant for the preparation of concentrated aqueous solutions of alkali metal hypochlorite
Process and plant for the preparation of concentrated aqueous solutions of alkali metal hypochlorite, in which a suspension of crystals of alkali metal chloride in an aqueous solution of alkali...
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4404179 |
Destruction of hypochlorite
Process for destruction of hypochlorite, e.g. sodium hypochlorite, in an apparatus comprising a nozzle connected to one end of a desorption tube the other end of which is connected to a vessel, in...
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RE31348 |
Hypochlorous acid process using sweep reactor
A process for preparing hypochlorous acid in a sweep reactor is described in which gaseous chlorine is passed rapidly across the surface of an agitated aqueous solution of alkali metal sodium ...
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4380533 |
Process for the production of dibasic magnesium hypochlorite
A process is described for the production of dibasic magnesium hypochlorite which comprises reacting a magnesium salt with an aqueous slurry of a crystalline hypochlorite salt in a reaction mixture...
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4333833 |
In-line disinfectant contactor
An in-line contactor adapted to bring about intimate contact between a disinfectant and a wastewater stream to produce a reaction between the disinfectant and pathogens effecting kills in a manner...
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4330521 |
Process for the manufacture of aqueous solutions of alkali metal hypochlorite
The invention concerns a process and an apparatus for the manufacture of aqueous solutions of alkali metal hypochlorite. The apparatus comprises a reaction vessel in which chlorine is caused to...
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4329330 |
Iodine (VII) oxytetrafluorohypofluorite and a process for preparing the same
A fluorinating agent having an empirical formula which comprises FOIF 4 O whereby said fluorinating agent is prepared by a metathetical reaction of solutions of NF 4 SbF 6 and CsIF 4 O 2 in...
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4297333 |
Method of decomposing hypochlorite ion in a basic solution
Disclosed is a hypochlorite decomposition catalyst of nickel (II) oxide and NiCo 2 O 4 spinel, a hypochlorite destruction process using the catalyst, and a method of synthesizing the catalyst on...
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4256710 |
Process for deodorization
A gas containing bad smell substances and a washing solution for deodorization are fed into a wash tower so as to carry out the deodorization by the gas-liquid contact. An aqueous solution of an...
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4190638 |
Production of hypochlorous acid
An aqueous hypochlorous acid production process is disclosed wherein the precipitate formed upon carbonating electrolytic cathode cell liquor is contacted in a fluidized bed with a mixture of...
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4146578 |
Hypochlorous acid process
A process for preparing hypochlorous acid is described in which gaseous chlorine is reacted with an aqueous solution of alkali metal hydroxide in a finely divided mist form at an elevated...
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4123377 |
Particulate detergent composition containing dibasic magnesium hypochlorite
A particulate detergent composition containing dibasic magnesium hypochlorite having a specific small particle size as the bleaching agent.
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