Patents
Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632)
05/2005
05/24/2005US6896980 Water-scavenging agent for an organic electroluminescent device and organic electroluminescent device comprising same
05/24/2005US6896814 Multistage process; controlling voltage
05/24/2005CA2099162C Method and composition for inhibiting silica and silicate deposition
05/19/2005WO2005046288A2 Waterboiler system with solids removal apparatus
05/19/2005WO2005044868A1 Acrylic-acid-based homopolymers comprising taurine modified for the treatment of water
05/19/2005WO2005044736A1 Auto-regenerable hot and cold water softener
05/19/2005WO2005010454A3 Cleaning agent, device and process for removing scale
05/19/2005US20050104031 Water treatment; reaction product of amine and phosphoric acid, phosphonic acid; treat water in a boiler and boiler feedlines or cooling tower; water purification
05/19/2005US20050103723 Water treatment system and method
05/19/2005US20050103722 Using electrochemistry device; measuring physical properties; deionization
05/19/2005US20050103717 A pressurized reservoir system in line with an electrodeionization device; provides treated water to a point of use by removing any hardness-causing species contained in water from a water source
05/19/2005US20050103631 Water treatment system and method
05/19/2005US20050103630 Water treatment system and method
05/19/2005US20050103622 Water treatment system and method
05/19/2005CA2544771A1 Taurine-modified acrylic acid-based homopolymers for water treatment
05/18/2005CN1616361A Composite scale-proof corrosion inbibitor containing poly epoxy succinic acid and its use
05/18/2005CN1202028C Pretreatment filming agent and pretreatment filming method for circulating cooling water system
05/18/2005CN1202027C Modified lignin sulfonate water treatment agent and its preparation method
05/12/2005WO2005042803A1 Water treatment device
05/12/2005WO2005042037A1 Module for purifying a fluid containing a cleaning agent, and methods of fabricating and using this kind of module
05/11/2005EP1529758A1 Discharge apparatus
05/11/2005CN1615273A Fractional deionization process
05/10/2005CA2083590C Polymers for the treatment of boiler water
05/06/2005WO2005040050A1 Formulation for corrosion and scale inhibition
05/06/2005CA2541449A1 Preparation for corrosion and scale inhibition
05/05/2005US20050092672 Waterboiler system with solids removal apparatus
05/04/2005EP1528222A1 Process to prevent the formation of scale deposits in tunnel drainage systems
05/04/2005EP1527078A2 Novel phosphonocarboxylic acid esters
05/04/2005CN1199885C Composite scale resistant corrosion inhibitor and its use in reusing ammonia-nitrogen containing waste awter in circulating cooling water
05/04/2005CN1199884C Antiscale and anticorrosive cleaning agent for boiler and its prepn
04/2005
04/27/2005EP1525206A1 Polyaminomethylenephos phonate derivatives
04/27/2005CN1609020A Water treating method with scale and corrosion inhibitor containing epoxy amber acid polymer
04/27/2005CN1609019A Scale and corrosion inhibiting method for industrial boiler
04/26/2005CA2369244C An integrated method for steam-enhanced bitumen production using a process waste stream for flue gas desulphurization
04/21/2005WO2005035104A1 Method for removing at least one constituent from a solution
04/20/2005EP1523487A1 Method of preventing or reducing aluminosilicate scale in a bayer process
04/20/2005EP0975551B1 Inhibition of calcium oxalate scale in aqueous based solutions
04/20/2005CN1607189A Industrial boiler heat delivery surface dirty-proof method
04/19/2005US6881244 Method and device for preventing deposits in steam systems
04/19/2005US6881231 Reducing deposition of mineral salts, in particular, from aqueous supersaturated solutions; reducing scaling
04/14/2005WO2005032698A1 Method for avoiding clogging of filtration membranes
04/13/2005EP1522339A1 Method and apparatus for removing at least one constituent from a solution
04/12/2005US6878309 Slowly releases the additive components to aqueous system, thereby delivering an effective concentration level of additive components over an extended period
04/07/2005WO2005030655A1 Use of cerium salts to inhibit manganese deposition in water systems
04/07/2005WO2005012192B1 Bio degradation of oxyanions such as perchlorate on ion exchange resins
04/07/2005WO2005005329A3 Water-softening method
04/07/2005WO2004106246A3 Methods, devices and compounds for dosing additives to water systems
04/07/2005US20050072720 Point-of-use water softener
04/07/2005DE10340923A1 Unit protecting hot water storage and heating cylinder from limescale deposition by intentional crystal nucleation, has container for nucleation granules with side inlet openings
04/06/2005EP1519899A1 Filter appliance and inner container for a filter appliance
04/06/2005CN2690389Y Descaling and anti-scaling device
04/06/2005CN1603253A Composite anti-dirty corrosion inhibiting agent and application thereof
04/06/2005CN1603252A Composite anti-dirty corrosion inhibiting agent and application thereof
04/05/2005CA2252697C Use of hydroxamated polymers to alter bayer process scale
03/2005
03/31/2005WO2005028377A1 Wastewater purification method
03/31/2005WO2005028088A1 Treatment of semi-permeable filtration membranes
03/30/2005CN2688692Y Preparing system for solid-liquid mixed emulsion
03/30/2005CN1194912C Dispersing and antisludging corrosion inhibitor of low-phosphorus polymer
03/29/2005CA2241529C Methods and compositions for controlling biofouling using fluorosurfactants
03/24/2005WO2005026614A1 Vapor producing device and cooker with the same
03/24/2005WO2005026065A1 Treatment of iron sulphide deposits
03/24/2005US20050061753 Adding a cerium-containing compound into an aqueous system to stabilize manganese against chemical oxidation
03/24/2005US20050061197 contacting biofilm with an aqueous medium containing bromine based-biocide: a sulfamate-stabilized, bromine-based biocide or 1,3-dibromo-5,5-dialkylhydantoin; a biodispersant
03/23/2005EP1515917A1 Method for precipitating or flocculating substances contained in solutions
03/23/2005CN1597572A Sulfuric acid type composite water cleaning agent
03/23/2005CN1597076A Process for treating aqueous systems
03/22/2005US6869529 Automatic chemical feed system
03/22/2005US6869503 Composition for inhibiting calcium salt scale
03/17/2005US20050056589 Treatment of semi-permeable filtration membranes
03/16/2005CN1193086C Cleaning compositon
03/09/2005CN1589625A Process for preparing biocide formulations
03/09/2005CN1192127C Scale inhibiting method, detergent and use of copolymer in detergent
03/08/2005US6863822 Method and apparatus for parallel desalting
03/08/2005US6863808 Modular water softener system
03/02/2005CN2682057Y Gravity flow type resin regeneration water softener
02/2005
02/24/2005WO2005017231A1 Inhibition of corrosion in fluid systems
02/24/2005WO2004090067A3 Drilling fluids with improved shale inhibition and methods of use in subterranean formations
02/24/2005US20050042239 Micro-mixied water and water insoluble biocide such as 2-octyl-3-isothiazolone or 4,5-dichloro-2-octyl-3-isothiazolone; corrosion inhibitior, agrichemical, antiscale agents, dispersants, and/or acrylic polymers; surfactant-free
02/24/2005US20050042238 Process for treating aqueous systems
02/24/2005US20050040363 comprising mixtures of sequestration, chelation, buffers, dispersants, peptization, deflocculation, emulsifiers, abrasives and adsorbers, used for corrosion resistance, as antiscaling agents and to improve heat exchanging in heating, ventilation and air conditioning (HVAC) systems
02/24/2005US20050040112 Method and apparatus for reducing scale, corrosion, and paraffin buildup in hydrocarbon piping
02/23/2005EP1508363A1 Process for treating aqueous systems
02/23/2005EP1508276A1 Process for preparing biocide formulations in the form of emulsion
02/22/2005US6858180 Process for inhibiting scale
02/21/2005CA2477365A1 Process for preparing biocide formulations
02/17/2005US20050035328 Modified amine for boiler water treatment
02/16/2005CN1579962A Incrustation scale protective composition, and its preparing method and use
02/15/2005US6855257 Method and system for heat transfer
02/15/2005US6855252 Chemical dispenser cartridge for filter devices
02/10/2005WO2005012193A1 Scale inhibition in water systems
02/10/2005WO2005012192A1 Bio degradation of oxyanions such as perchlorate on ion exchange resins
02/10/2005CA2531063A1 Bio degradation of oxyanions such as perchlorate on ion exchange resins
02/09/2005CN2677370Y Water outlet pipe for water of dechloration descaling and activation
02/03/2005WO2005010454A2 Cleaning agent, device and process for removing scale
02/03/2005US20050025661 Inhibition of corrosion in fluid systems
02/03/2005US20050023505 Controlled release cooling additive composition
02/02/2005CN2675643Y Automatic regenerated water softening treatment device for household
02/02/2005CN2675638Y Descaling apparatus by means of differential temperature method
02/02/2005CN2675637Y Flexible sectionalized continuous mixing reactor for water treatment
02/01/2005US6849188 Magnetic conditoning of fluids and gases and apparatus therefor
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