Patents
Sitemap › C02 - Treatment of water, waste water, sewage, or sludge › C02F - Treatment of water, waste water, sewage, or sludge › C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632)
09/2003
09/18/2003US20030173303 Mixture of stabilizer agents and copolymers comprising acrylic acids, esters, amides, anhydrides and/or copolycarbons, used in water treatment or pollution control apparatus as antideposit agents
09/18/2003US20030173302 Method of controlling deposit formation in aqueous systems
09/18/2003US20030172963 System for cleaning drainage pipes in movable equipment
09/17/2003EP1343922A2 Corrosion inhibition method suitable for use in potable water
09/17/2003CN1442376A Method of preventing darkening (blackening) of aluminium cover in water bath sterilization
09/17/2003CN1442375A Water quality stabilizing agent
09/16/2003US6620338 Composition for inhibition of metal corrosion
09/16/2003US6620328 For inhibiting the barium sulfate scale in an open cooling water system using polyphosphate mixture
09/16/2003CA2240711C Low molecular weight structured polymers
09/16/2003CA2137007C Method for removing alkaline sulfate scale
09/15/2003CA2386445A1 Fluid treatment apparatus
09/10/2003CN1441707A Cleaning system for drainage pipe in movable machine
08/2003
08/28/2003WO2003071282A1 Inhibitor of the adhesion of metal oxide-containing material to waste liquor line of automatic analyzer
08/28/2003US20030162677 Mixture of hydroxycarboxylic acid, sulfamic acid and ammoniumsulfate
08/28/2003US20030160001 Using polysuccinimide; water treatment; antideposit agents
08/28/2003CA2476495A1 Inhibitor for adhesion of metal hydroxide-containing substance to waste liquor line of autoanalyzer
08/27/2003EP1338572A1 Process for preventing the scale formation of double salts containing phosphate
08/27/2003EP1337473A1 Electrochemical cell and electrochemical treatment of contaminated water
08/27/2003CN1438185A Green scale corrosion inhibitor
08/27/2003CN1119297C Composite anticorrosion antifoulant for softening circulated water
08/26/2003US6610210 Disposable cartridge for on-premises water treatment system
08/26/2003US6609564 For cooling an object of heat exchange such as machinery, air, or liquid, which serves to prevent oxidation and deterioration of metal materials used in pipes for supplying/circulating the heat exchange water
08/21/2003US20030156970 Sulphur-free lignin and derivatives thereof for reducing the formation of slime and deposits in industrial plants
08/21/2003US20030155308 Flocculation, precipitation, filtration
08/20/2003EP1336436A1 Washing system for drain pipe inside mobile frame
08/20/2003EP1335881A1 Process for desalination of seawater
08/20/2003CN1436740A Corrosion inhibiting method for cooling water system of production equipment in shutdown period
08/14/2003US20030150816 Use of high flux density magnets; non-uniform flux density pairing; magnetic field focused on an air gap using advanced insulative shielding and parallel alignment control; incremental conditioning and modular design
08/13/2003CN1435384A Corrosion-and scaling-inhibiting water treating agent
08/12/2003US6605155 Remover for scale deposited on titanium material
08/07/2003WO2003064325A1 Method for determining the dissolution rate of a solid water treatment product
08/07/2003CA2473134A1 Method for determining the dissolution rate of a solid water treatment product
08/06/2003EP1332114A2 Treatment of scale
08/06/2003CN1117035C Water treatment agent
08/05/2003US6602411 Activating efficiency of water in the magnetic treating apparatus is enhanced by the electric conductors 4 located in the magnetic field-generating region 5 or by utilizing a magnetic circuit having the dipole magnetic ring structure 10.
08/05/2003CA2135638C Salts of polyaspartic acid by high temperature reaction
07/2003
07/31/2003WO2003062151A1 Method of generating fresh water and fresh-water generator
07/31/2003US20030141486 Scale and corrosion inhibitors
07/31/2003US20030141258 Method for determining the dissolution rate of a solid water treatment product
07/30/2003EP1330413A1 Method for disposing of waste, produced in an aluminium anodisation plant
07/30/2003CN1432539A Neutral scavenger for running water circulating system
07/29/2003CA2119056C Methods for inhibiting deposition and fouling in scrubber systems
07/29/2003CA2055098C Monitoring and dosage control of tagged polymers in cooling water systems
07/24/2003WO2003059539A2 Countermeasure washdown system cleaning
07/24/2003WO2003059537A1 Cleaning method and cleaning fluid for aeration bodies
07/24/2003DE10213612C1 Keeping reduced pressure drinking- or service water systems clean, further reduces pressure and monitors for sharp drop, on which pressure is increased
07/23/2003EP1328479A2 Method and composition for the treatment of blackwater collection systems
07/23/2003EP1328329A1 Water filter cartridge having a proportional flow feeder
07/23/2003CN1115306C Corrosion-retarding scale inhibitor for boiler
07/22/2003US6596175 Method for treating stator cooling water to prevent clogging of strainer in the cooling system of an industrial electrical generator
07/22/2003US6596159 Automatic regeneration valve for water softener
07/17/2003US20030132166 Method of treating mine drainage
07/15/2003CA2052732C Method for inhibiting scale formation
07/10/2003WO2003055810A1 Compact water treatment device
07/10/2003US20030129078 Mixture with oxime in aqueous solution; corrosion resistance
07/10/2003US20030127391 Antifouling agents, antiscaling agents, corrosion resistance;controlling filter membrane flux
07/10/2003US20030127381 Apparatus for producing USP or WFI purified water
07/08/2003US6589461 Mixing polyphosphonate, orthophosphate and phosphonate powder with water to initiate exothermic reaction, pouring the material into a mold placed inside an insulated hermetic cabinet and allowed to quiescently cool and form solid cake
07/03/2003WO2003053859A1 Fractional deionization process
07/03/2003US20030122104 Supplying additive to open circulation system
07/03/2003US20030121457 Stabilised calcium hydroxide slurries
07/02/2003EP0900179B1 Use of hydroxamated polymers to alter bayer process scale
07/02/2003CN1427860A Scale and corrosion inhibitors
07/01/2003US6587753 Use of control matrix for boiler control
07/01/2003US6585868 Reduced water producing apparatus
06/2003
06/26/2003US20030116492 Modular water softener system
06/25/2003EP1097258A4 Inhibition of silica and silicate deposition
06/25/2003CN1425618A Composite scale resistant corrosion inhibitor
06/24/2003US6582595 Compact water conditioning apparatus
06/19/2003WO2003029153A3 Scale control composition
06/19/2003US20030110573 Comprises maleic acid derivative as crosslinking agent and cyanamide as esterification catalyst; improved durability
06/18/2003CN1424986A Descaling agent for scales on titanium materials
06/18/2003CN1424259A Method for eliminating effection on three element composite surface tension by wastewater of oil field
06/12/2003WO2003020649B1 Thickened aqueous compositions
06/11/2003CN1423622A Sulphur-free lignin and derivatives thereof for reducing the formation of slime and deposits in industrial plants
06/11/2003CN1422823A Method for preparing lime hydrate emulsion and method for preparing vinylidene chloride from said lime hydrate emulsion
06/05/2003WO2003046332A1 Oil-soluble scale inhibitors with formulation for environmently friendly composition
06/05/2003WO2003045857A1 Sulfosuccinamate surfactants as deposition inhibitors
06/05/2003WO2003045856A1 Water-softening tablet
06/05/2003WO2003045855A1 Cleaning method
06/04/2003EP1315926A2 Water softener valve
06/04/2003EP1235754B1 Apparatus for removing deposits and/or pollutans from water
06/04/2003CN1421403A Water treatment agent
06/03/2003US6572789 Phosphinosuccinic acids and oligomers
05/2003
05/28/2003EP1313834A1 Cleaning method
05/28/2003EP1313670A1 Cleaning method
05/21/2003CN1419562A Novel phosphorus compounds
05/21/2003CN1418830A Amphoteric bacteria-killing corrosion-inhibitor
05/21/2003CN1418829A Corrosion inhibition method for non-passive metal and boiler
05/15/2003WO2003040046A1 Coolant treatment formulation
05/15/2003WO2003040043A1 Water treatment process and apparatus
05/15/2003US20030091467 Scale inhibitor for an aqueous system
05/14/2003EP1156986B1 System for treating fluids in an electric field
05/14/2003CN1417138A Composite scale-inhibiting corrosion inhibitor suitable for reusing ammonia nitrogen containing effluent as circular cooling water
05/08/2003WO2001064006A3 Treatment of scale
05/08/2003US20030085175 Metal oxides dispersant composition
05/07/2003EP0946268B1 Method and apparatus for high efficiency reverse osmosis operation
05/07/2003CN1415561A Method of scale removal and sterilization for cooling water system
05/06/2003CA2074460C Corrosion inhibitors
05/02/2003EP1305106A1 Multi-stage filtration and softening module and reduced scaling operation
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