| 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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| 10/15/1986 | EP0197213A1 Treatment of a medium for the reduction of biofouling |
| 10/14/1986 | US4617129 Scale inhibition |
| 10/09/1986 | WO1986005772A1 Method and apparatus for reducing pitting in copper water pipes |
| 10/07/1986 | US4615840 Aminomethylenephosphonic acid solutions |
| 10/07/1986 | CA1212349A1 Use of chelating agents in water desalination |
| 10/01/1986 | CN85100618A Method for preventing fouling of turbine blades for differential pressure power generation |
| 09/30/1986 | US4614596 Roatation, varying velocities |
| 09/30/1986 | US4614595 Method of water treatment |
| 09/17/1986 | EP0194342A2 Scale inhibiting composition |
| 09/09/1986 | US4610792 Wastewater clean up with activated carron, lime and filter aid |
| 09/03/1986 | EP0192651A1 1,3 disubstituted aromatic cyclohexane imides and method of use thereof as chelating agents |
| 09/02/1986 | US4609757 Carboxylation to carbazic acids |
| 09/02/1986 | US4609483 Scale inhibiting composition |
| 08/27/1986 | EP0192630A2 Aminomethylenephosphonate compositions |
| 08/26/1986 | CA1210302A1 Boiler scale prevention employing an organic chelant |
| 08/19/1986 | US4606890 2-hydroxy-phosphonoacetic acid and metal ions |
| 08/19/1986 | US4606828 Etched alloy projections, depressurization, crystallization |
| 08/19/1986 | CA1210168A1 Use of polycondensation products of acrolein and formaldehyde for removing hydrogen sulphide and iron sulphide in aqueous systems |
| 08/06/1986 | EP0189401A1 Electrostatic water treatment and electrode therefor. |
| 08/06/1986 | CN85100271A Cleaning agent for remove incrustant in stainless steel heat exchanger |
| 08/05/1986 | US4604233 Thickened aqueous hydrochloric acid composition for descaling, or treatment of subterranean formations |
| 08/05/1986 | US4604212 Use of copolymers of carboxylic monomer and betaine-containing monomer as corrosion and scale inhibitors |
| 08/05/1986 | US4604211 Industrial water systems |
| 08/05/1986 | CA1209009A1 Polyampholytes and their use |
| 07/30/1986 | EP0188884A1 Method of controlling iron induced fouling in water systems |
| 07/30/1986 | CN85100471A Recipe of water treatment reagent of tungsten system |
| 07/29/1986 | US4603006 Antifouling agents |
| 07/29/1986 | CA1208521A1 Scale inhibitor for reverse osmosis water purification system |
| 07/17/1986 | WO1986004051A1 Solution for cleansing a cooling system |
| 07/15/1986 | US4600524 Copolymer of allysulfonic acid and meleic acid |
| 07/08/1986 | CA1207211A1 Composition and method for inhibiting scale |
| 07/02/1986 | CN85107471A Method to prepare water stabilizer from adipic dinitrile waste |
| 06/18/1986 | EP0184894A1 Carboxylic-sulfonic-polyalkylene oxide polymers and their use as scale and corrosion inhibitors |
| 06/17/1986 | US4595517 Also includes sodium silicate and water |
| 06/11/1986 | EP0184558A1 Scale-inhibiting method and compound |
| 06/11/1986 | EP0184414A2 Compositions for controlling alkaline-earth metal scales |
| 06/11/1986 | EP0183894A2 Use of mixture of acids and/or acid salts for removing iron and manganese deposits and stains |
| 06/10/1986 | CA1205715A1 Systems inhibited against corrosion and/or scale deposition |
| 06/03/1986 | CA1205348A1 Method of inhibiting scale |
| 05/20/1986 | US4589995 Maleic acid copolymer, production thereof and scale-preventing agent containing the same |
| 05/20/1986 | US4589985 Anionic polymer |
| 05/14/1986 | EP0180673A1 Mixtures containing nitrilotriacetic acid and iminodiacetic acid (or salts thereof) as a sequestering agent |
| 05/09/1986 | WO1986002631A1 Solution process and solvent for hardly soluble carbonates |
| 05/06/1986 | US4587021 Inhibition of the formation of inorganic or biological CaCO3 -containing deposits by a proteinaceous fraction obtained from CaCO3 -forming organisms |
| 05/06/1986 | CA1204040A1 Anti-tartrate and precipitating agent for the treatment of industrial and/or domestic waste waters |
| 04/30/1986 | CN85203278U Combine water-treatment device |
| 04/29/1986 | US4585560 Inhibition of inorganic and biological CaCO3 deposition by a polysaccharide fraction obtained from CaCO3 -forming organisms |
| 04/22/1986 | US4584105 Scale inhibitors for preventing or reducing calcium phosphate and other scales |
| 04/22/1986 | US4584104 Silica inhibition: prevention of silica deposition by boric acid/orthorborate ion |
| 04/22/1986 | CA1203451A1 Treatment of aqueous systems |
| 04/16/1986 | EP0177509A1 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content |
| 04/15/1986 | CA1203328A1 Method for the elimination or prevention of blockages in bottom aerators in water treatment and sewage treatment under operating conditions |
| 04/08/1986 | US4581145 Maleic anhydride-vinyl sulfonic acid copolymer and an organic phosphonate |
| 04/08/1986 | US4581058 Inhibiting growth and proliferation of microorganisms |
| 04/08/1986 | CA1202860A1 Boiler water treatment |
| 04/01/1986 | US4579956 Amino-phosphonates |
| 04/01/1986 | US4579720 Chelation |
| 03/18/1986 | US4576722 Scale and sludge compositions for aqueous systems |
| 03/18/1986 | CA1201962A1 Method of removing scale |
| 03/11/1986 | US4575454 Chelating, antiscasling agents |
| 03/11/1986 | US4575425 Process for controlling calcium oxalate scale over a wide pH range |
| 03/05/1986 | EP0172950A1 Polymeric alkylenephosphoric acid piperazine derivatives as scale inhibitors |
| 02/27/1986 | WO1986001192A1 Polymeric alkylenephosphoric acid piperazine derivatives as scale inhibitors |
| 02/26/1986 | EP0172288A1 The use of polymeric alkylenephosphoric acid piperazine derivatives for scale control in flue gas desulfurization |
| 02/19/1986 | EP0172154A2 Inhibition of scale formation with a maleate polymer |
| 02/13/1986 | WO1986000820A1 1,3 disubstituted aromatic cyclohexane imides and method of use thereof as chelating agents |
| 02/12/1986 | EP0171049A2 Calcium sulfate inhibition |
| 02/12/1986 | EP0171048A2 Scale inhibition in water systems |
| 02/11/1986 | US4569779 Solution for cleansing a cooling system |
| 02/11/1986 | CA1200457A1 Polyitaconic acid threshold scale inhibitor |
| 02/04/1986 | US4568469 Use of methylene phosphonic acid compositions derived from aminohydrocarbyl piperazine-urea adducts to inhibit scale |
| 02/04/1986 | US4568468 Preventing precipitation of scale production metal ions from their aqueous solutions |
| 01/28/1986 | US4566974 Method of inhibiting scale with copolymer |
| 01/28/1986 | US4566973 Copolymer of an acrylic acid and an acrylamide |
| 01/28/1986 | US4566972 Ethylenediaminetetraacetic acid or salt, maleic acid-styrenesulfonic acid copolymer |
| 01/21/1986 | CA1199550A1 Method of cleaning the jacket of a glass-lined reactor |
| 01/14/1986 | US4564456 Organosilylackylammonium salt |
| 01/07/1986 | US4563284 Inhibition of salt precipitation in aqueous systems |
| 01/07/1986 | US4563283 Process for clarifying bicarbonate bearing waters using measurement and control of carbon dioxide content |
| 01/02/1986 | EP0166020A1 New metal ion control agents based on dicyclopentadiene derivatives |
| 12/31/1985 | US4561983 Method for controlling mollusks |
| 12/31/1985 | US4561982 Oxidized polysaccharide |
| 12/31/1985 | US4561981 Treatment of fouling with microcapsules |
| 12/27/1985 | EP0165333A1 New compounds containing quaternary ammonium and methylenephosphonic acid groups |
| 12/24/1985 | US4560481 Method of controlling iron induced fouling in water systems |
| 12/18/1985 | EP0164514A1 Use of lamellar crystalline sodium silicates in water-softening processes |
| 12/17/1985 | US4559156 Cooling and adding acrylamide-methacrylic acid copolymer; especially usefull in hardwater systems |
| 12/17/1985 | CA1198027A1 Carboxylate polymers for internal scale control agents in boiler systems |
| 12/04/1985 | EP0163494A2 A method of treating water to inhibit corrosion and diminish mineral deposition |
| 12/03/1985 | US4556493 Composition and method for inhibiting scale |
| 12/03/1985 | CA1197509A1 Polymeric quaternary ammonium compounds and their uses |
| 11/26/1985 | US4555557 Polymerization catalyst, neutralization |
| 11/19/1985 | US4554090 Combination corrosion/scale inhibitor |
| 11/12/1985 | US4552665 Stabilization of soluble manganese and its reaction products |
| 11/05/1985 | US4551262 Composition for preventing deposition of inorganic salts |
| 10/23/1985 | EP0159185A2 Copolymers of carboxylic monomer and betaine-containing monomer |
| 10/22/1985 | US4548787 Aqueous liquids containing metal cavitation-erosion corrosion inhibitors |
| 10/15/1985 | US4547559 Acrylate/maleate copolymers, their preparation and use as antiscalants |
| 10/15/1985 | US4547294 Alkaline scale abatement in cooling towers |
| 10/09/1985 | EP0157552A2 Carboxylic/sulfonic/quaternary ammonium polymers for use as scale and corrosion inhibitors |