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)
12/2005
12/29/2005CA2570219A1 Improvement of sludge quality
12/28/2005EP1152986B1 Scale and/or corrosion inhibiting composition
12/28/2005CN1714051A Stabilized aqueuos folic acid preparation and its production
12/28/2005CN1714049A Magnetic conditioning of fluids and gases and apparatus therefor
12/22/2005WO2005121411A2 Process for preventing membrane degeneration using complexing agents
12/22/2005WO2005121032A1 Water-softening product and process for its preparation and use thereof
12/22/2005US20050282712 Scale control composition for high scaling environments
12/22/2005CA2570012A1 Water-softening product and process for its preparation and use thereof
12/15/2005WO2005118863A2 Microporous materials, methods of making, using, and articles thereof
12/15/2005US20050277752 functionalized mordant polymers having a high-affinity and high capacity for metal-ions; to remove metal-ions from environments such as drinking water, food, biological fluids, industrial effluents and radioactive waste
12/15/2005US20050274927 Bio degradation of oxyanions such as perchlorate on ion exchange resins
12/15/2005US20050274926 Using polymer as antiscaling agents
12/14/2005EP1604955A2 A mixture of chemicals for establishing in freshwater aquariums a standard ion concentration complying with a biotope
12/14/2005EP1604716A1 Device for chemically treating of Water, in particular to avoid boiler scale
12/14/2005EP1523487B1 Method of preventing or reducing aluminosilicate scale in a bayer process
12/14/2005EP1328479B1 Method and composition for the treatment of blackwater collection systems
12/14/2005CN1706759A Scale and corrosion inhibitor for continuous casting soft water and steel making soft water system
12/14/2005CA2470869A1 Water softener and purifier
12/13/2005CA2143405C Method of inhibiting scale and controlling corrosion in cooling water systems
12/08/2005WO2005116296A1 Method of cooling water treatment and treatment chemical
12/08/2005WO2005115927A1 Device for reduction of scale formation
12/08/2005US20050268947 Removal of blockages from pipework
12/07/2005CN1230456C Itaconic acid copolymer, and preparing method and use thereof
12/07/2005CN1230239C Water softener
12/01/2005WO2005113457A2 Closed loop flow control of a hplc constant flow pump to enable low-flow operation
12/01/2005US20050263740 Process for cleaning wash water
11/2005
11/30/2005CN1703376A Method and reactor for decalcifying and simultaneously removing harmful substances
11/30/2005CN1702047A Method of cooling water treatment and treatment chemical
11/30/2005CN1229284C Green phosphate-free water treating agent
11/24/2005WO2005110925A2 Control of cooling water system using rate of consumption of fluorescent polymer
11/23/2005CN1228268C Method for preparing slaked lime hydrate emulsion and method for preparing vinylidene chloride, and method for preventing adherent scale
11/17/2005WO2005108311A1 Water treatment method in high cycle dispensing systems for scale control
11/17/2005WO2005108307A2 Apparatus and process for water conditioning
11/17/2005WO2005074688A3 Synergistic biocidal compositions comprising a thp salt
11/16/2005CN1227165C Corrosion and scale inhibitor for water treatment and its prepn.
11/15/2005US6964275 section of a ship with marine scale is isolated and an aqueous acidic cleaning solution is circulated through the fouled pipe at a controlled pH to dissolve and loosen the scale; after cleaning all of the sections, the system is restored
11/10/2005US20050247638 adding buffers and conditioners to water, causes precipitation of solids, then removing the precipitated solids, conditioners and buffers for disposal; water treatment; softening hard water
11/10/2005US20050247637 Passing water through metal particulates and polyphosphates before heating to reduce scale deposits in heated water contacted portions of such systems, by forming a crystal or scale that does not adhere well to surfaces
11/10/2005US20050247269 Scale conditioning agents and treatment method
11/03/2005US20050242042 Control of cooling water system using rate of consumption of fluorescent polymer
11/02/2005CN1225416C Scale inhibiting, Corrosion retarding and environment protecting water treating agent
11/02/2005CN1225415C Water-treatment agent for steam-boiler device
11/02/2005CN1225411C Industrial sewage deodorant and preparing process thereof
10/2005
10/27/2005US20050235821 Water softener
10/26/2005EP1587761A1 Magnetic conditioning of fluids and gases and apparatus therefor
10/26/2005EP0638049B2 Process for preventing deposits in a structure's drainage system
10/26/2005CN1686869A Water treatment agent and preparation method thereof
10/20/2005WO2005097689A1 Improved scale conditioning agents and treatment method
10/20/2005US20050230268 electrolytic cells including water tanks, electrodes and a direct current power source, used for trapping and precipitating gramnegative bacteria from water; water treatment
10/20/2005CA2562979A1 Improved scale conditioning agents and treatment method
10/19/2005CN1683259A Use of phosphorus containing organic waste liquid in scale resistance and slow etching agent
10/19/2005CN1223525C Cleaning method
10/13/2005US20050227878 One-bath particle-free chemical cleaning
10/13/2005US20050224339 Chemical generator device
10/12/2005CN1681740A Method and system for heat transfer
10/12/2005CN1222532C Phosphorus compound, its preparation method and purpose thereof
10/06/2005US20050218080 of a metal cooling water system containing soluble silica in source water; pretreatment removal of hardness ions (calcium and magnesium), maintenance of electroconductivity by elevating pH level to above 9.0
10/05/2005EP1542933A4 Process for inhibiting scale and fouling on the metal surfaces exposed to an aqueous system
10/04/2005CA2069789C Polyether polyamino methylene phosphonates for high ph scale control
09/2005
09/29/2005US20050210745 Methods of utilizing waste waters produced by water purification processing
09/29/2005DE102004003286A1 System zur Wasserenthärtung durch Fällenthärtung System for water softening Fällenthärtung
09/28/2005EP1579033A1 Metal corrosion inhibitor and hydrogen chloride formation inhibitor in a crude oil atmospheric distillation unit
09/28/2005EP1578698A1 Stabilized aqueous folic acid preparation and process for providing the same
09/28/2005EP1578694A1 Method and apparatus for high efficiency evaporation operation
09/27/2005US6949193 Cooling water scale and corrosion inhibition
09/27/2005US6949192 Apparatus for producing USP or WFI purified water
09/22/2005US20050205839 Method of producing remover and remover
09/21/2005CN1671718A Method of preventing or reducing aluminosilicate scale in a bayer process
09/21/2005CN1669953A Scale protectant and its preparation method and application
09/21/2005CN1219727C Multifunctional natural mineral preparation
09/15/2005US20050199853 Vapor compression air conditioning or refrigeration system cleaning compositions and methods
09/14/2005EP1572592A2 A combined electrochemical system for scale treatment and eradicating legionella pneumophila bacteria in water supply systems
09/14/2005CN2725289Y Water softening apparatus
09/14/2005CN2725271Y Rust remoring scale inhibiting apparatus for cooling water circulation system
09/14/2005CN1666963A Antiscale scale-remover for industrial water treatment
09/14/2005CN1666960A Softened water treating process and device adapted for garbage engineering
09/14/2005CN1218883C Phosphate stabilizing compositions
09/09/2005WO2005082793A1 Desalination scale inhibitors
09/09/2005WO2005049510A3 Water treatment system and method
09/08/2005US20050194025 section of a ship with marine scale is isolated and an aqueous acidic cleaning solution is circulated through the fouled pipe at a controlled pH to dissolve and loosen the scale; after cleaning all of the sections, the system is restored
09/07/2005CN1217976C Scale and corrosion inhibitors
09/06/2005CA2297013C Scale and/or corrosion inhibiting composition
09/01/2005WO2005012192A8 Bio degradation of oxyanions such as perchlorate on ion exchange resins
08/2005
08/31/2005EP1567455A1 Bio degradation of oxyanions such as perchlorate on ion exchange resins
08/31/2005CN2721617Y Water treater with electrolysis
08/31/2005CN1662458A Method of purifying fischer-tropsch derived water
08/31/2005CN1660707A Biodegradable green compounded water treatment agent for delayed corrosion and blocking dirty, and preparation method
08/31/2005CN1216811C Methods for preventing scaling inveolving inorganic compositions, and inorganic compositions therefor
08/30/2005US6936172 A water treatment system comprising a magnetic field generator for fluxing and directing water fluid go through or cut through the magnetic line in an angle, filtration; reduce membrane fouling, changing most precipitates to aragonite
08/30/2005CA2231674C Magnesiosilicates
08/25/2005WO2005078047A1 Drilling fluids with improved shale inhibition and methods of drilling in subterranean formations
08/25/2005WO2005077843A1 Water-softening method
08/25/2005CA2556101A1 Water-softening method
08/24/2005EP1566362A1 Method of dissolving scale
08/24/2005CN2719838Y Scale-preventing device
08/24/2005CN2719830Y Magnetized scale-proof descaling device
08/24/2005CN1659104A Methods for reducing boron concentration in high salinity liquid
08/24/2005CN1215994C Method of scale removal and sterilization for cooling water system
08/23/2005US6932909 Adding a scale control agent and an oxidizer and/or precipitating and settling the metals in hydroxide form
08/18/2005WO2005075061A1 Brine-conserving nanofiltration water softener system
1 ... 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 ... 87