Patents
Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632)
07/2006
07/26/2006EP1682451A2 Water treatment system and method
07/26/2006EP1682450A2 Flow-through tank for water treatment
07/26/2006CN2799085Y Shower nozzle capable of purifying and softening water
07/26/2006CN1807287A Highly effective multifunctional reverse osmosis membrane antiscaling agent and its preparation method
07/26/2006CN1807286A Saving and environment-friendly type water softener and its softening method
07/26/2006CN1265899C Cleaning system for drainage pipe in movable machine
07/25/2006US7081212 Solid free-flowing phosphonate composition
07/20/2006WO2005073361A8 Cleaning method
07/20/2006US20060157422 Water treatment system and method
07/20/2006US20060157420 Adding an initial amount of oxygen scavenger to the boiler water to provide a concentration of oxygen scavenger of 50 ppm;adding an initial amount of alkaline chemical, automatically monitoring the pH and the oxidation-reduction potential of the boiler water; adjusting the pH
07/19/2006EP1681273A1 Water-softening tablet
07/19/2006CN1805982A Water-soluble polymer and its production process and uses
07/18/2006US7077976 Reacting an amino compound with phosphoric acid compound
07/18/2006US7077962 Method and apparatus for parallel desalting
07/13/2006WO2006073619A2 Automated process for inhibiting corrosion in an inactive boiler containing an aqueous system
07/13/2006WO2006072134A1 Composition and method for treatment of residues in pumping, bore, and reticulation equipment
07/13/2006WO2006072125A1 Scale removal apparatus and method
07/13/2006US20060151401 Method and reactor for decalcifying and simultaneously removing harmful substances
07/13/2006US20060151394 Cooling water corrosion inhibition method
07/13/2006CA2616411A1 Scale removal apparatus and method
07/12/2006EP1677836A1 Module for purifying a fluid containing a cleaning agent, and methods of fabricating and using this kind of module
07/12/2006CN1800057A Closed circulated utilization technology for industrial production acid waste water
07/06/2006US20060144286 Viscoelastic coating paste for protecting against macrofouling and method for producing a coating
07/05/2006CN1796309A Composite agent for anti water incrustation in use for reverse osmosis system and application
07/05/2006CN1796308A High molecular water softener, synthetic method and application
07/05/2006CN1796307A Method for treating circulating cooling water
07/05/2006CN1262489C Method for controlling scale formation and deposition in aqueous systems
07/05/2006CN1262488C Corrosion inhibition method for non-passive metal and boiler
07/05/2006CN1262487C Method for removing boiler scale
07/05/2006CN1262328C Water filter cartridge having a proportional flow feeder
06/2006
06/29/2006US20060142170 Descaling and corrosion inhibiting composition
06/28/2006EP1673310A1 Formulation for corrosion and scale inhibition
06/28/2006CN1792891A Apparatus for physical Chemical treating of circulating water
06/28/2006CN1792869A Waste water treating device and method
06/28/2006CN1792859A Tech. for treating waste water of yellow ginger acid hydrolysis
06/28/2006CN1261377C Composite anti-dirty corrosion inhibiting agent and application thereof
06/28/2006CN1261376C Polyepoxysuccinic acid as environment protecting scale inhibitor and its preparation process
06/27/2006CA2469409C Regulating water treatment agent dosage based on operational system stresses
06/22/2006WO2006064940A1 Amino group-containing water-soluble copolymer
06/22/2006US20060131241 Phosphonamide and phosphonamide blend compositions and method to treat water
06/21/2006EP1670573A1 Method and apparatus for removing at least one constituent from a solution
06/21/2006CN1789178A Method for preparing biodegradable water treatment agent PECS
06/20/2006US7064098 Composition for removing scale deposited on titanium materials
06/15/2006WO2005110925A3 Control of cooling water system using rate of consumption of fluorescent polymer
06/14/2006EP1669668A1 Vapor producing device and cooker with the same
06/14/2006EP1667787A1 Method for avoiding clogging of filtration membranes
06/14/2006CN1785853A Non-Phosphorus composite anti incrustation eorrosion snhibiter and its application in water treatment
06/14/2006CN1259123C System for producing and preparing solid liquid mixing emulsion
06/08/2006WO2005121411A3 Process for preventing membrane degeneration using complexing agents
06/08/2006US20060118761 Corrosion inhibition method for use in recirculating cooling water systems
06/08/2006DE19922535B4 Vorrichtung zur Waschwasserenthärtung Apparatus for softening of washing water
06/07/2006EP1663880A1 Use of cerium salts to inhibit manganese deposition in water systems
06/07/2006EP1663879A1 Treatment of iron sulphide deposits
06/07/2006EP1483207A4 Method for determining the dissolution rate of a solid water treatment product
06/07/2006CN1784359A Polymer for water treatment
06/07/2006CN1781858A Low phosphine compound slow corrosion antisludging agent
06/07/2006CN1781857A Methoxy group naphthyl fluorescence marked water treating agent and its preparing method
06/01/2006US20060113505 Scale inhibitor, composition useful for preparing same, and method of inhibiting scale
05/2006
05/31/2006EP1661863A1 Method and device for treating and/or purifying of fluids containing water hardness
05/31/2006EP1330413B1 Method for disposing of waste, produced in an aluminium anodisation plant
05/31/2006CN1778718A Treatment for softening seawater by single-decalcification
05/31/2006CN1778695A Waste liquid treatment and treating system thereof
05/31/2006CN1257848C Method for inhibiting chloride ion corrosion in recirculated cooling water
05/26/2006WO2006053626A1 Cleaning method for removing deposits containing magnetite out of a pressure vessel of a power plant
05/26/2006CA2586556A1 Cleaning process for removing magnetite-containing deposits from a pressure vessel of a power station
05/24/2006EP1252855B1 Control system for a water softener device, in particular for household appliances
05/23/2006US7048852 Method and apparatus for treating water or wastewater to reduce organic and hardness contamination
05/23/2006US7048803 Method of dissolving scale
05/23/2006US7047985 Removal of blockages from pipework using carbamate and nitric acid treatment steps
05/18/2006WO2005046288B1 Waterboiler system with solids removal apparatus
05/17/2006EP1047834B1 Silica-acid colloid blend in a microparticle system used in papermaking
05/17/2006CN1772656A Composit scale and corrosion inbibitor for circular cooling wate treatment
05/11/2006WO2005123612A3 Composition comprising metal-ion sequestrant
05/10/2006CN1769216A Antiscaling block and its production method
05/10/2006CN1255338C Water treating method with scale and corrosion inhibitor containing epoxy amber acid polymer
05/10/2006CN1255337C Modified nanometer kaolin-analog antiscaling agent for boiler and its preparation method
05/04/2006WO2006046095A1 Water-softening product, its preparation and its use
05/04/2006WO2006046055A1 Water-softening method
05/04/2006WO2006046002A1 Improvements in or relating to a water softening product
05/04/2006WO2006046001A1 Improvements in or relating to a water softening product
05/04/2006CA2585346A1 Improvements in or relating to a water softening product
05/04/2006CA2585298A1 Water-softening method
05/04/2006CA2585291A1 Process for the preparation of highly purified, dialkyl phosphinic acids
05/04/2006CA2584883A1 Copolymer composition for particle aggregation
05/04/2006CA2584187A1 Improvements in or relating to a water softening product
05/04/2006CA2566523A1 Water-softening product, its preparation and its use
05/03/2006EP1652969A1 Deruster composition and method
05/03/2006EP1652826A1 Water dispenser
05/03/2006EP1652825A2 Hydrophobically modified polymers and its use as dispersant and for preventing scale
05/03/2006EP1651797A1 Inhibition of corrosion in fluid systems
05/03/2006EP1651348A2 Regenerant reuse
05/03/2006CN1765774A Sodium carbonate salt water prerefining and antiscaling process and prerefining reacting trough
05/03/2006CN1765475A Self air feeding type gas liquid mixing blade
05/03/2006CN1254443C Scale and corrosion inhibiting method for industrial boiler
05/03/2006CN1254442C Scale inhibiting dispersant for high temperature gas scrubbing water system and its manufacturing method
05/03/2006CN1254441C Softening and coagulating treatment process of gas scrubbing water
05/02/2006US7037434 producing a softened alkaline water stream by using an alkali agent to precipitate the hardness minerals; utilizing the softened alkaline water stream to scrub a flue gas containing sulfur dioxide
05/02/2006CA2256559C N-bis- or n-tris-[(1,2-dicarboxy-ethoxy)-ethyl]-amine derivatives and preparation and use of the same
05/02/2006CA2194182C Determining biodegradability of iminodiacetic acid derivatives, degradable chelants, uses and compositions thereof
04/2006
04/27/2006WO2006044952A1 Compositions for cleaning with softened water
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