| Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632) |
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| 09/30/2009 | CN100545104C Automatic control device for treating cooling circulation water system by ozone |
| 09/24/2009 | US20090236290 Water treatment device comprising a reactor and means for injecting a reagent into the reactor mounted on mobile supporting means |
| 09/23/2009 | CN101538815A Scale inhibitor in green liquor manufacturing system, inhibiting method and green liquor manufacturing system |
| 09/23/2009 | CN101538362A Method for synthesizing polyepoxysuecinic acid salt |
| 09/23/2009 | CN101538090A Multifunctional drag reduction agent of circulating water pipeline |
| 09/23/2009 | CN101538069A Liquid environment-friendly heating water anti-theft agent and preparation method thereof |
| 09/23/2009 | CN100542981C High concentration circulation water scaling-proof water softener and water treatment method |
| 09/22/2009 | CA2378039C Process and apparatus for the capacitive demineralization of liquids containing ions |
| 09/17/2009 | WO2009114708A2 Desalination system and process |
| 09/16/2009 | CN201309865Y Full-automatic agent-feeding device |
| 09/16/2009 | CN201309864Y Intelligent materialized water treatment device |
| 09/15/2009 | US7588696 Antimicrobial water softener salt and solutions |
| 09/15/2009 | CA2416465C Treatment of iron sulphide deposits |
| 09/09/2009 | EP1542933B1 Process for inhibiting scale and fouling on the metal surfaces exposed to an aqueous system |
| 09/09/2009 | CN201305512Y Water quality hardness mixer |
| 09/09/2009 | CN101525186A Water treatment method used in bauxite desilication process and suitable for hardwater areas |
| 09/09/2009 | CN101525185A Phosphorus-free corrosion and scale inhibitor and preparation method thereof |
| 09/09/2009 | CN100537454C Desalination scale inhibitors |
| 09/02/2009 | EP1685069B1 Auto-regenerable hot and cold water softener |
| 09/02/2009 | EP1525206B1 Polyaminomethylenephos phonate derivatives |
| 09/02/2009 | CN101519245A Preparation method of silicon dioxide colloid cleaning agent |
| 09/02/2009 | CN101519244A Compound scale inhibitor for treating recirculated cooling water and preparation method thereof |
| 08/27/2009 | US20090211983 Using sodium cation-exchanged softened water as makeup water for cooling tower, providing bypass filter for suspended solids removal from water, treating water with composition for control of corrosion and deposition, and using effective biocide for control of biological growth; environmentally friendly |
| 08/27/2009 | US20090211947 Method for Reducing Fouling in Furnaces |
| 08/26/2009 | EP2091869A2 System and method for ultrasonic cleaning of ultraviolet disinfection system |
| 08/26/2009 | CN101516792A Water treatment system and method with a continuous partial flow bypass path |
| 08/26/2009 | CN101514060A Device for treating emergency drinking water |
| 08/26/2009 | CN101514055A Micromolecular gamma-polyglutamic acid or scale inhibition application of gamma-polyglutamates in form of Na+ thereof |
| 08/26/2009 | CN100532529C Water softening products and its use method in article washing machine |
| 08/26/2009 | CN100532458C Environment-friendly type composite antisludging agent for inhibiting silicon dioxide dirt deposition in water |
| 08/26/2009 | CN100532295C Composite corrosion-retarding antisludging agent for treating high-concentration multiple circulating water |
| 08/25/2009 | US7578968 Effecting biocidal activity in aqueous well fluid by blending with the fluid a biocidally-effective amount of a sulfamate stabilized, bromine-based biocide formed from a halogen source which is bromine chloride, bromine and chlorine, a source of sulfamate anions, alkali metal base, and water |
| 08/20/2009 | WO2009102817A2 Methods for removing dissolved metallic ions from aqueous solutions |
| 08/20/2009 | US20090206298 Calcium Reduction Composition and Method |
| 08/20/2009 | CA2714486A1 Methods for removing dissolved metallic ions from aqueous solutions |
| 08/19/2009 | CN101511740A Water softening method and water softener |
| 08/19/2009 | CN101508492A Environment-friendly composite dirt dispersion agent for oil-field flooding treatment |
| 08/19/2009 | CN100528763C Oxygen scavenger and boiler water treatment chemical |
| 08/19/2009 | CN100528762C Oxygen scavenger and boiler water treatment chemical |
| 08/13/2009 | WO2009100000A2 Apparatus and method for improved electrolytic water treatment process |
| 08/13/2009 | WO2009099485A1 Methods and systems for processing waste water |
| 08/13/2009 | CA2713752A1 Methods and systems for processing waste water |
| 08/12/2009 | CN201288101Y Water treating device for softening, clarifying and filtering lime |
| 08/12/2009 | CN201288098Y Water heater corrosion protection scale inhibition apparatus employing corollary oxide material |
| 08/12/2009 | CN101506105A Method and integral system for treating water for cooling towers and processess requiring removal of silica from the water |
| 08/12/2009 | CN101503426A Novel technique for coproduction of 2-phosphonobutane-1,2,4-tricabroxylic acid and methyl chloride |
| 08/12/2009 | CN100525620C Composition for prevention of slime and method for preventing slime |
| 08/11/2009 | US7572381 adding a copolymer of vinylphosphonic acid or sodium or potassium salt or vinylsulfonic acid or salt and acrylic or methacrylic acid or salt, a terpolymer of above monomers in a water system to inhibit the formation of basrium sulfate scale at high (e.g. wellhead) and low (e.g. seabed) temperature |
| 08/06/2009 | US20090196892 Process for preparing water soluble articles |
| 08/06/2009 | US20090196891 Process for preparing water soluble articles |
| 08/05/2009 | EP1636142B1 Tagged scale inhibiting polymers, compositions comprising the same, and method for preventing or controlling scale formation |
| 08/05/2009 | CN201284242Y Powder chemical adding apparatus |
| 08/05/2009 | CN101501050A Alpha-amino acid phosphonic acid compounds, method of preparation and use thereof |
| 08/05/2009 | CN101500951A Method of scale inhibition |
| 08/05/2009 | CN101497626A Preparation of alpha, alpha'-diphosphono aliphatic dicarboxylic acid |
| 08/05/2009 | CN101497481A Scale inhibitor for reverse osmosis membrane and preparation thereof |
| 08/05/2009 | CN101497480A Novel industrial water treatment agent and preparation thereof |
| 07/30/2009 | WO2009092738A1 Method of water treatment |
| 07/30/2009 | WO2009062924A3 Methods of minimizing sulfate scale in oil field |
| 07/30/2009 | US20090188802 Ion removal device and method for using the same |
| 07/30/2009 | DE102008005992A1 Verfahren zur Herabsetzung der Versinterung von Drainagerohren Method for reducing the sintering of drainage pipes |
| 07/30/2009 | CA2712617A1 Method of water treatment |
| 07/29/2009 | EP2082991A1 Method of Water Treatment |
| 07/29/2009 | EP2082094A1 A process for reducing scaling in the pulp and paper industry and use of carbon dioxide therefor |
| 07/29/2009 | EP2081872A1 Hydrophobically modified polyamine scale inhibitors |
| 07/29/2009 | EP1737938A4 Vapor compression air conditioning or refrigeration system cleaning compositions and methods |
| 07/29/2009 | CN101492207A Dirt dispersion agent and method of producing the same |
| 07/29/2009 | CN100518919C Water catalytic decarbonation appliance |
| 07/28/2009 | US7566689 Textile article immersed in or retaining water; has calcium-binding moieties to soften the wash water and improve cleaning |
| 07/23/2009 | US20090186858 Synergistic compositions |
| 07/23/2009 | US20090184061 Reagent injector for equipping a water treatment reactor, comprising a nozzle associated with a dispersing member, and corresponding water treatment device |
| 07/22/2009 | EP2079667A1 Composition |
| 07/21/2009 | US7563362 Auto-regenerable hot and cold water softener |
| 07/16/2009 | WO2009021852A9 Inhibition of corrosion in boilers by polyhydroxy benzene addition |
| 07/16/2009 | US20090179173 Water Softening Method |
| 07/16/2009 | US20090178587 Control of biofilms in industrial water systems |
| 07/15/2009 | EP2007684B1 Reactor and method for decalcifying water and simultaneous removal of pollutants |
| 07/15/2009 | CN100513332C Corrosion inhibitor used for closed circulation water system |
| 07/15/2009 | CN100513331C Control of cooling water system using rate of consumption of fluorescent polymer |
| 07/09/2009 | US20090173692 Fluid flow of aqueous liquid containing dissolved minerals and hydrocarbons through warm lime softener; acidification with mineral acid from pH of 11 to 9 ; microfiltration, ion exchanging, reverse osmosis, and air stripping; recycling sludge; antiscaling; removal of silica and boron without magnesium |
| 07/08/2009 | CN201268626Y Apparatus for adding concentrated sulfuric acid to circulating water |
| 07/08/2009 | CN101475266A Fluorescent tracing scale inhibitor and preparation thereof |
| 07/08/2009 | CN100509654C Low-phosphorus composite antiincrustation corrosion inhibitor and use for water treatment |
| 07/08/2009 | CN100509653C Low-phosphorus antiincrustation corrosion inhibitor and use thereof |
| 07/08/2009 | CN100509652C No-phosphate corrosion and scale inhibitor and application thereof |
| 07/02/2009 | WO2009080498A1 Scale inhibition |
| 07/02/2009 | US20090170817 Corrosion inhibition |
| 07/01/2009 | EP1456132A4 Fractional deionization process |
| 07/01/2009 | CN201264950Y Scale inhibitor adding apparatus |
| 06/25/2009 | WO2009077327A1 A method of building of hard water and a builder system for a detergent composition |
| 06/25/2009 | US20090159420 Cooling water corrosion inhibition method |
| 06/24/2009 | CN101462800A Composite water treatment medicament |
| 06/24/2009 | CN100503476C Preparation method for highly effective maleic anhydride series polymer antisludging agent |
| 06/18/2009 | US20090151804 Cooling medium flow path |
| 06/17/2009 | EP2069028A1 A block for chemically dosing a stream of fluid and an apparatus for housing the block |
| 06/17/2009 | CN100500586C Apparatus for electrolysis method water treatment |
| 06/11/2009 | WO2009073064A1 Water treatment process for oilfield produced water |
| 06/11/2009 | US20090145820 Systems for fluid treatment having multiple cycles |
| 06/11/2009 | CA2702034A1 Water treatment process for oilfield produced water |
| 06/10/2009 | DE10302888B4 Vorrichtung zur Bestimmung der Konzentration von Härtebildnern und Verfahren zur Prozeßsteuerung Apparatus for determining the concentration of hardness salts and methods for process control |