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| Number | Title | Issue Date |
| 7431863 | Calcium hypochlorite composition Describes a composition comprising a mixture of calcium hypochlorite and hydrated magnesium sulfate having an average of from 3 to 5.5 moles of water of hydration per mole of magnesium sulfate. The amount of hydrated magnesium sulfate in the composition is such that... | 10/07/2008 |
| 7364669 | Method for reducing reactivity of calcium hypochlorite Stable compositions of calcium hypochlorite containing selected hydrated inorganic salts having a sufficiently high enthalpy and the ability to provide water release to sufficiently quench reactions and reduce the potential for conflagration. ... | 04/29/2008 |
| 7045077 | Calcium hypochlorite compositions Stable compositions of calcium hypochlorite containing selected hydrated inorganic salts having a sufficiently high enthalpy and the ability to provide water release to sufficiently quench reactions and reduce the potential for conflagration. ... | 05/16/2006 |
| 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. By decreasing the pH, the hypochlorite/hypochlorous acid equilibrium ... | 02/15/2005 |
| 6638446 | Lower reactivity blends of calcium hypochlorite and magnesium sulfate A non-Division 5.1 Oxidizer composition consisting essentially of a blend of hydrated calcium hypochlorite with magnesium sulfate heptahydrate, wherein the blend contains at least about 17% by weight of water based on the total weight of the blend.... | 10/28/2003 |
| 6309621 | Process for producing high test hypochlorite and calcium chloride aqueous solution An economical, industrial and ecologically-sound process for producing high test hypochlorite and a calcium chloride aqueous solution comprising the steps of (a) preparing milk of lime, (b) chlorinating the milk of lime to crystallize calcium hypochlorite... | 10/30/2001 |
| 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 less than about 5.5, with sufficient micromixing to achie... | 07/02/1996 |
| 5171562 | Turbine agglomerated calcium hypochlorite particle and process for the production thereof A hydrated calcium hypochlorite agglomerated particle is provided that is produced in a turbine agglomerator and has a plurality of connecting links of recrystallized material bridging the small particles forming the agglomerate which has therein a plural... | 12/15/1992 |
| 5164109 | Algicidally enhanced calcium hypochlorite compositions Compositions consisting essentially of calcium hypochlorite and a water soluble zinc salt, the compositions containing from about 40 percent to about 99 percent by weight of calcium hypochlorite, provide controlled release of the components for continuous... | 11/17/1992 |
| 5149398 | Apparatus for producing a fast dissolving granular product A process and apparatus utilizing the process of the present invention are provided to produce a fast dissolving, thermally sensitive granular product. The process employs a fluidized spray dryer having a fluidized bed of granular particles into which rec... | 09/22/1992 |
| 5098689 | Turbine agglomerated calcium hypochlorite particle and process for the production thereof A hydrated calcium hypochlorite agglomerated particle is provided that is produced in a turbine agglomerator and has a plurality of connecting links of recrystallized material bridging the small particles forming the agglomerate which has therein a plurla... | 03/24/1992 |
| 5091165 | Calcium hypochlorite product A calcium hypochlorite composition consists essentially of at least 75 percent by weight of Ca(OCl)2, from about 6 to about 14 percent by weight of water, and less than 1.5 percent by weight of an alkali metal chloride. The novel composition pr... | 02/25/1992 |
| 5085847 | Apparatus for producing a fast dissolving granular product A process and apparatus utilizing the process of the present invention are provided to produce a fast dissolving, thermally sensitive granular product. The process employs a fluidized spray dryer having a fluidized bed of granular particles into which rec... | 02/04/1992 |
| 5009806 | Calcium hypochlorite article Granular calcium hypochlorite containing from about 0.001 to about 1.0 weight percent of finely-divided polyfluorinated polymer, e.g., polytetrafluoroethylene, dispersed throughout the granules is described. The product may be compressed and formed into s... | 04/23/1991 |
| 4970020 | Calcium hypochlorite composition Granular calcium hypochlorite containing from about 0.001 to about 1.0 weight percent of finely-divided polyfluorinated polymer, e.g., polytetrafluoroethylene, dispersed throughout the granules is described. The product may be compressed and formed into s... | 11/13/1990 |
| 4965016 | Granular calcuim hypochlorite composition and process for preparation thereof A granular calcium hypochlorite composition comprising a particle of calcium hypochlorite dihydrate and/or calcium hypochlorite anhydride, the surface of which has been covered with a double decomposition product of calcium hypochlorite and an alkali meta... | 10/23/1990 |
| 4865760 | Calcium hypochlorite composition Granular calcium hypochlorite containing from about 0.001 to about 1.0 weight percent of finely-divided polyfluorinated polymer, e.g., polytetrafluoroethylene, dispersed throughout the granules is described. The product may be compressed and formed into s... | 09/12/1989 |
| 4863709 | Calcium hypochlorite composition and process for preparation thereof Disclosed is a granular calcium hypochlorite composition having a calcium hypochlorite content of at least 55 wt. % and composed of particles having an ellipsoidal shape in section, wherein at least 50 wt. % of the ellipsoidal particles have a short diame... | 09/05/1989 |
| 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 solution (2), the sodium chloride which precipitates (6) is... | 08/15/1989 |
| 4849201 | Process for preparing chlorinated lime A process for preparing chlorinated lime solid having an available chlorine ontent in the range of about 30 to about 50 weight percent by contacting a chlorine source, e.g., liquid chlorine, with a basic calcium-containing substance, e.g., hydrated lime, i... | 07/18/1989 |
| 4842841 | Continuous process for producing granular calcium hypochlorite particles A continuous process for producing granular calcium hypochlorite particles comprises admixing lime and an aqueous liquid in a mixing zone to form a lime slurry. The lime slurry is fed into a crystallizing zone along with a calcium hypochlorite-containing ... | 06/27/1989 |
| 4820881 | Decolorization A process to decolorize and stabilize nitro compounds by contacting the nitro compound with an alkaline earth metal hypochlorite particulate material.... | 04/11/1989 |
| 4728454 | Rapidly dissolving granular hydrated calcium hypochlorite A rapidly dissolving granular hydrated calcium hypochlorite product is comprised of hydrated calcium hypochlorite particles having at least 95 percent of the particles within a size range of from about 300 to about 850 microns. The product has a packed bu... | 03/01/1988 |
| 4605508 | Rapidly dissolving granular hydrated calcium hypochlorite A rapidly dissolving granular hydrated calcium hypochlorite product is comprised of hydrated calcium hypochlorite particles having at least 95 percent of the particles within a size range of from about 300 to about 850 microns. The product has a packed bu... | 08/12/1986 |
| 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 ion-providing chemical compounds preferably sodium hydrosul... | 08/12/1986 |
| 4561994 | Surfactant free stable hypochlorite paste This invention discloses a stable, surfactant-free, aqueous hypochlorite paste readily dispersible in hot or cold water, thickened with non-reactive inorganics without having alkali metal silicates, providing up to 10% available chlorine and with a viscos... | 12/31/1985 |
| 4529578 | Production of calcium hypochlorite Crystals of dibasic calcium hypochlorite are produced by reacting lime with a solution containing hypochlorite ions under conditions suitable to produce large crystals of dibasic calcium hypochlorite, a mother liquor and fine insoluble impurities and sepa... | 07/16/1985 |
| 4521397 | Process for producing calcium hypochlorite hydrate crystals A process for producing calcium hypochlorite hydrate crystals, which comprises continuously supplying a basic calcium hypochlorite slurry and chlorine gas, and reacting them at a temperature of from 20°-50° C. and at a chlorination rate of from 92 to 98... | 06/04/1985 |
| 4517166 | Two-stage chlorination process for the production of solid bleaching powder with a high active chlorine content The subject of the invention is a two-stage process for the production of bleaching powder with a high active chlorine content, which comprises suspending slaked lime in the aqueous solution resulting from the second chlorination stage after the separatio... | 05/14/1985 |
| 4504457 | Continuous process for producing granular calcium hypochlorite particles A continuous process for producing granular calcium hypochlorite particles comprises admixing lime and an aqueous liquid in a mixing zone to form a lime slurry. The lime slurry is fed into a crystallizing zone along with a calcium hypochlorite-containing ... | 03/12/1985 |
| 4500506 | Production of calcium hypochlorite Neutral calcium hypochlorite is made by producing and separating out from the mother liquor crystals of dibasic calcium hypochlorite; reacting the dibasic calcium hypochlorite with a solution free of insoluble impurities and containing hypochlorite ions t... | 02/19/1985 |
| 4487751 | Process for calcium hypochlorite A process for producing calcium hypochlorite comprises wetting lime with an aqueous slurry of fine basic calcium hypochlorite crystals in a mixing zone to form an aqueous lime slurry. The aqueous lime slurry is reacted with a calcium hypochlorite solution... | 12/11/1984 |
| 4483842 | Method for removing dibasic calcium hypochlorite scale Dibasic calcium hypochlorite scale present on the surfaces of process equipment, e.g., process vessels, used for the manufacture of neutral calcium hypochlorite is removed chemically by controllably adding chlorine to the process liquor under conditions o... | 11/20/1984 |
| 4483715 | Method for removing dibasic calcium hypochlorite scale Dibasic calcium hypochlorite scale found on the surfaces of process equipment used for the manufacture of calcium hypochlorite is removed chemically by submerging the scale in water, thereby to form an aqueous alkaline solution, and controllably adding hy... | 11/20/1984 |
| 4468377 | Continuous process for the manufacture of calcium hypochlorite Calcium hypochlorite is produced by admixing a slurry of lime containing soluble impurities with a saturated calcium hypochlorite solution in a crystallizing zone. An impure slurry of coarse and small dibasic calcium hypochlorite crystals and fine insolub... | 08/28/1984 |
| 4448759 | Method for separating particulate calcium hypochlorite and sodium chloride Calcium hypochlorite particles and larger sodium chloride crystals are separated by passing an aqueous slurry containing such particles and crystals into a first classification zone comprising a two-stage substantially vertical elutriator-classifier. A fi... | 05/15/1984 |
| 4428919 | Method for separating particulate calcium hypochlorite and sodium chloride Calcium hypochlorite particles and larger separable sodium chloride crystals produced in a process for manufacturing calcium hypochlorite are effectively separated by use of a staged upward-flow elutriator-classifier. In particular, an aqueous slurry of t... | 01/31/1984 |
| 4416864 | Process for calcium hypochlorite A process for producing calcium hypochlorite from lime containing insoluble impurities comprises reacting the lime with an aqueous solution of hypochlorous acid to form a reaction mixture comprised of coarse dibasic calcium hypochlorite crystals and fine ... | 11/22/1983 |
| 4399117 | Production of neutral calcium hypochlorite from its dibasic salt A process for producing neutral calcium hypochlorite comprises admixing lime, an alkali metal hypochlorite and dibasic calcium hypochlorite crystals in a mixing zone slurry. The mixing zone slurry is reacted with chlorine to form a paste of neutral calciu... | 08/16/1983 |
| 4397832 | Manufacture of calcium hypochlorite A process for making calcium hypochlorite from caustic soda calcium hydroxide and chlorine by feeding to a stirred reactor an aqueous solution of the total required amount of caustic soda and an aqueous suspension of up to 80% by weight of the total requi... | 08/09/1983 |
