| 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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| 08/28/1984 | CA1173336A1 Cleaning composition |
| 08/28/1984 | CA1173228A1 Stabilization of silicates using salts of substituted nitrogen or sulfur containing siliconates |
| 08/15/1984 | EP0115727A1 Process for inhibiting the deposition of clay in water |
| 08/14/1984 | US4465516 Asymmetrical diesters of ortho-phosphoric acid useful as corrosion inhibitors |
| 07/18/1984 | EP0113408A1 Acrolein and formaldehyde polycondensation products as hydrogen and iron sulphide scavengers in aqueous media |
| 07/17/1984 | US4460477 Use of a carboxylic functional polyampholyte to inhibit the precipitation and deposit of scale in aqueous systems |
| 07/17/1984 | US4460472 Scale inhibitor for reverse osmosis water purification system |
| 07/11/1984 | EP0113060A1 Method of eliminating manganese deposits from water works installations |
| 07/10/1984 | US4459241 Antideposit agents |
| 07/10/1984 | CA1170540A1 Polymers for prevention of fouling by iron oxides in cooling system |
| 07/04/1984 | EP0112738A1 Scale preventing method |
| 07/03/1984 | US4457847 Sequestering calcium and magnesium |
| 06/27/1984 | EP0111959A2 Hydrochloric acid compositions and their use |
| 06/19/1984 | US4455240 Cationic polymers |
| 06/19/1984 | US4455235 Scale inhibition method employing (meth)acrylic acid/methallylsulfonate copolymer |
| 06/19/1984 | US4454914 Method for conditioning geothermal brine to reduce scale formation |
| 06/13/1984 | EP0110440A2 Inhibition of the staining of porcelain surfaces by manganese |
| 06/13/1984 | EP0109967A1 Water decarbonating process |
| 06/12/1984 | US4454046 Boiler scale prevention employing an organic chelant |
| 06/12/1984 | CA1169057A1 Heteroalklene bis anthraquinones |
| 06/12/1984 | CA1168950A1 Ascorbic acid and stereoisomers as oxygen scavengers for boiler feed water |
| 06/07/1984 | WO1984002126A1 Process for the prevention of magnesium and calcium scaling in desalination apparatus |
| 06/07/1984 | WO1984002125A1 Method for eliminating manganiferous scales from watersupply pla nts, treatment solution and utilization thereof |
| 06/05/1984 | US4452713 Inhibition of the staining of porcelain surfaces by manganese |
| 06/05/1984 | US4452704 Method for treating aqueous mediums |
| 05/23/1984 | EP0109200A1 High calcium tolerant deposit control method |
| 05/16/1984 | EP0108685A2 A glassy crystalline phosphate product and a process for the production thereof |
| 05/15/1984 | US4448682 Production of purified brine |
| 05/09/1984 | EP0107962A1 Scale inhibitor |
| 05/08/1984 | CA1167182A1 Selective scale formation |
| 05/01/1984 | US4446046 Poly (alkenyl) phosphonic acid and methods of use thereof |
| 05/01/1984 | US4446045 Composition for treating aqueous mediums |
| 05/01/1984 | US4446028 Isopropenyl phosphonic acid copolymers used to inhibit scale formation |
| 04/24/1984 | US4444794 Production of alkali metal glucoheptanate from sweet potatoes |
| 04/24/1984 | US4444675 Alkaline scale abatement |
| 04/18/1984 | EP0105612A1 Improved boiler scale prevention employing HEDTA as a chelant |
| 04/17/1984 | US4443609 Tetrahydrothiazole phosphonic acids or esters thereof |
| 04/17/1984 | US4443340 Control of iron induced fouling in water systems |
| 04/10/1984 | US4442009 Antiscaling agents |
| 04/03/1984 | US4440721 Aqueous liquids containing metal cavitation-erosion corrosion inhibitors |
| 03/27/1984 | US4439339 Descaler composition and method |
| 03/21/1984 | EP0103254A2 Process for preparing copolymers of monoethylenically unsaturated mono- and dicarboxylic acids (anhydride) |
| 03/14/1984 | EP0102587A1 Method of protecting water-containing systems against corrosion |
| 03/14/1984 | EP0102401A1 Method of preventing scale deposits in water systems |
| 03/13/1984 | US4436628 Polyphosphoric acid as a scale and corrosion inhibitor |
| 03/06/1984 | US4435556 Method of making and using novel scale inhibiting terpolymer |
| 03/06/1984 | US4435303 Descaling composition |
| 02/28/1984 | US4434059 Acrylamide-acrylic acid polymer |
| 02/28/1984 | CA1163046A1 Acrylic polymeric compositions, process for preparing them and their use for inhibiting scale deposition |
| 02/21/1984 | US4432884 Copolymer of alkylolamide land alkenyl compound |
| 02/21/1984 | US4432879 Adding 2-phosphonbutane-1,2,4-tricarboxylic acid and copolymer of methacrylic acid/2-acrylamido-2-methylpropanesulfonic acid or malic acid/styrenesulfonic acid |
| 02/21/1984 | CA1162491A1 Liquid treatment apparatus |
| 02/14/1984 | US4431547 Use of acrylamide/acrylic acid copolymers for prevention of fouling by Ca3 (PO4)2 |
| 02/14/1984 | US4431543 Using an anaerobic-aerobic activated sludge; sewage treatment; pollution control |
| 01/31/1984 | US4428872 Composition to inhibit staining of porcelain surfaces by manganese |
| 01/24/1984 | US4427568 Composition for treating aqueous mediums |
| 01/10/1984 | CA1160136A1 Method and composition for treating aqueous mediums |
| 01/10/1984 | CA1160036A1 Aminomethylenephosphonic acid solutions |
| 01/03/1984 | CA1159762A1 Desupersaturation of supersaturated aqueous calcium sulfate solutions |
| 12/27/1983 | CA1159344A1 Method for removing scale from porous diffusion tiles |
| 12/27/1983 | CA1159244A1 Corrosion inhibiting glass composition |
| 12/13/1983 | US4420399 Quaternary aminomethyl phosphonates as scale inhibitors |
| 11/23/1983 | EP0094822A1 Scale-inhibiting compositions and process for inhibiting scale in systems exposed to water |
| 11/22/1983 | US4416785 Scale-inhibiting compositions of matter |
| 11/22/1983 | CA1157341A1 Water-softening composition |
| 11/09/1983 | EP0093508A1 Method and composition for inhibiting corrosion and deposition in aqueous systems |
| 11/08/1983 | CA1156642A1 Method for preparing a cation exchanger and method for using such an exchanger for extracting metals from liquids |
| 11/08/1983 | CA1156534A1 Particulate dispersant enhancement using acrylamide- acrylic acid copolymers |
| 11/02/1983 | EP0092913A1 Method of scrubbing flue gases |
| 11/01/1983 | CA1156178A1 Anodically polarized surface for biofouling and scale control |
| 10/25/1983 | CA1155682A1 Method and apparatus for testing the effectiveness of chemicals such as scale inhibitors or scale removers |
| 10/19/1983 | EP0091763A1 Method and composition of inhibiting corrosion and deposition in aqueous systems |
| 10/18/1983 | US4410569 Palladium (II) bis(hexafluoroacetylacetonate), adducts derived therefrom and uses thereof |
| 10/11/1983 | US4409192 Gas scrubbing methods |
| 10/11/1983 | US4409151 Carbonylation, phosphonation |
| 10/11/1983 | US4409121 Corrosion inhibitors |
| 10/05/1983 | EP0090574A1 Polyitaconic acid threshold scale inhibitor |
| 10/04/1983 | US4407761 From a short chain aminocarboxylic acid |
| 09/28/1983 | EP0089654A2 2-Acrylamido-2-methyl-propanephosphonic acids and their salts, process for their preparation |
| 09/27/1983 | US4406811 Composition and method for controlling corrosion in aqueous systems |
| 09/27/1983 | CA1154346A1 Method and composition for treating aqueous mediums |
| 09/21/1983 | EP0089256A1 Scale preventing product for flat irons and boilers, and its use |
| 09/21/1983 | EP0089189A1 A calcium carbonate, magnesium hydroxide and calcium sulfate hemihydrate scale inhibitor |
| 09/20/1983 | US4405461 Control of silica scaling in industrial processes |
| 09/20/1983 | CA1154006A1 Method of improving sulfite antioxidant performance in high solids scrubbers |
| 09/13/1983 | CA1153726A1 Process for scale inhibition in evaporative desalination units |
| 09/06/1983 | US4403293 Control apparatus for use in multiple steam generator or multiple hot water generator installations |
| 09/06/1983 | US4402758 Purging oxygen distribution system with nonoxidizing gas, injection hydrochloride gas, and repeat purging |
| 08/30/1983 | CA1152848A1 Method and composition for treating aqueous mediums |
| 08/23/1983 | CA1152506A1 5,8-dihydroxy-1,4-bis(guanidinyl-amino) anthraquinones |
| 08/16/1983 | CA1151968A1 Method and composition for treating aqueous mediums |
| 08/09/1983 | US4397748 Partially hydrolyzed addition polymer as flow control agent |
| 08/09/1983 | CA1151498A1 Treatment of aqueous systems |
| 08/04/1983 | WO1983002607A1 Process for inhibiting scale |
| 08/02/1983 | CA1150978A1 Control system for meter actuated regeneration in a water treatment system |
| 07/26/1983 | CA1150711A1 Crystallising of a zeolithe during industrial manufacturing processes |
| 07/19/1983 | US4394261 System for controlling clarification of boiler feed water and the like |
| 07/12/1983 | US4392955 Sedimentation and clarification |
| 06/29/1983 | EP0082657A2 Polyampholytes and their use |
| 06/28/1983 | US4390670 Acrylate/maleate copolymers, their preparation and use as antiscalants |