Water-softening Or Purifying Or Scale-inhibiting Agents Patents (Class 252/175)
  • Patent number: 10266434
    Abstract: Compositions and methods for remediation of contaminated materials, such as contaminated water, are provided. The composition may include at least one fermentable compound and at least one metal or metal containing compound to promote conversion of the contaminants into non-toxic substances through abiotic and/or biotic processes. The composition may further include sulfur or a sulfur containing compound, and/or microorganisms or derivative thereof.
    Type: Grant
    Filed: November 16, 2016
    Date of Patent: April 23, 2019
    Assignee: JRW BIOREMEDIATION, LLC
    Inventors: Donovan Smith, Gwyn Isenhouer, Michael R. Sieczkowski
  • Patent number: 10129975
    Abstract: A reconfigurable electronic component comprising a channel having first and second ends and outer walls defining a lumen; a liquid phosphonic acid within the lumen; and a liquid metal within the lumen. A first electrical contact at the first end of the channel and a second electrical contact in communication with the lumen at the second end of the channel. A predetermined amount of a solvent and a liquid metal may be within the lumen, and the solvent may comprise ethanol. The liquid metal may be selected from the group consisting of eutectic gallium indium (EGaIn) and eutectic gallium-indium-tin alloys. The phosphonic acid may be selected from the group consisting of decylphosphonic acid (DPA), fluorobenzylphosphonic acid (FPA), and difluorobenzylphosphonic acid (DFPA). The first and second electrical contacts comprise copper. An overflow channel and a reservoir for the liquid metal and phosphonic acid may be in fluid communication with the lumen.
    Type: Grant
    Filed: March 29, 2018
    Date of Patent: November 13, 2018
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Christopher Tabor, Nahid Ilyas
  • Patent number: 9676739
    Abstract: The present invention relates to a novel acid dianhydride, a method for preparing the same, and a polyimide prepared therefrom. More specifically, the acid dianhydride according to the present invention is useful as a colorless transparent polyimide unit exhibiting excellent thermal stability and a low dielectric ratio, and the polyimide of the present invention has excellent solubility to an organic solvent compared with the conventional polyimide.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: June 13, 2017
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Hyo Jun Park, Hak Gee Jung, Chang Sik Ha, Prdip Kumar Tapaswi, Young Sik Jeong
  • Patent number: 9434624
    Abstract: Compositions and methods for removing phosphates, nitrates and heavy metals from aqueous solutions.
    Type: Grant
    Filed: February 25, 2015
    Date of Patent: September 6, 2016
    Assignee: NCear Inc.
    Inventors: Steven A. Odom, Denny J. Ivey
  • Patent number: 9309490
    Abstract: A composition includes a polysaccharide graft polymer composition. In one embodiment, the polysaccharide graft polymer composition includes a polysaccharide residue present in an amount from about 5% to about 90% by weight of the polysaccharide graft polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide graft polymer composition.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: April 12, 2016
    Assignees: Ecolab USA Inc., Akzo Nobel Surface Chemistry LLC
    Inventors: Carter M. Silvernail, Erik C. Olson, Klin Rodrigues
  • Patent number: 9309489
    Abstract: A composition includes a polysaccharide hybrid polymer composition. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from about 5% to about 90% by weight of the polysaccharide hybrid polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide hybrid polymer composition.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: April 12, 2016
    Assignees: Ecolab USA Inc, Akzo Nobel Surface Chemistry LLC
    Inventors: Carter M. Silvernail, Erik C. Olson, Klin Rodrigues
  • Patent number: 9290849
    Abstract: There are provided methods of suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system, the method comprising: (a) introducing into the water stream a shot dose of a treatment composition comprising a corrosion inhibitor, the shot dose being introduced into the water stream over a first time period and the water stream having a first concentration of corrosion inhibitor during the first time period; (b) then reducing the amount of treatment composition that is introduced into the water stream; and (c) after the first time period, maintaining a second concentration of corrosion inhibitor in the water stream over a second time period, the second concentration being less than 25% of the concentration of corrosion inhibitor during the first time period.
    Type: Grant
    Filed: June 26, 2014
    Date of Patent: March 22, 2016
    Assignee: CHEMTREAT, INC.
    Inventors: John Richardson, Rajendra Kalakodimi, DeAnn Wills-Guy
  • Patent number: 9034209
    Abstract: Corrosion protection formulation comprising (A) from 0.01 to 5% by weight of alkylamine ethoxylates as surfactant component, (B) from 0.01 to 10% by weight of corrosion inhibitors, (C) from 0 to 0.3% by weight of thickeners, (D) from 5 to <75% by weight of freezing point-lowering alcohols selected from among alkanols, glycols, polyalkylene glycols and glycerol, (E) from 5 to 90% by weight of vegetable and/or fatty oils, (F) from 0 to 5% by weight of water and (G) from 0 to 5% by weight of conventional emulsifiers. The formulation is particularly suitable for protecting zinc or zinc-plated components or surfaces or cadmium or cadmium-plated metallic surfaces against corrosion caused by runway deicing compositions used at airports.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: May 19, 2015
    Assignee: BASF SE
    Inventors: Harald Dietl, Uwe Nitzschke
  • Publication number: 20150129472
    Abstract: Cellulose acetate or polyvinylpyrrolidone is electrospun into fibers having diameters of nanometer scale to form a first mat that is capable of absorbing hydrocarbons. A second mat may be formed from a solution of cellulose acetate or polyvinylpyrrolidone further containing tungsten trioxide. The solution is electrospun onto a copper mesh and then thermally oxidized to create a nanostructure comprising a grid or network of tungsten trioxide crystals and copper oxide crystals. The nanogrid is capable of photocatalyzing the degradation of hydrocarbons to carbon dioxide and water. The grid may be combined with the first mat to degrade hydrocarbons that the first mat absorbs.
    Type: Application
    Filed: June 27, 2012
    Publication date: May 14, 2015
    Inventors: Pelagia-Irene Gouma, Jusang Lee
  • Patent number: 9028747
    Abstract: Water treatment compositions are provided that are effective for mitigating corrosion or fouling of surfaces in contact with aqueous systems. The water treatment compositions can include one or more azole compounds, one or more transition metals, and one or more dispersants, in addition to various other additives. The water treatment compositions can exclude phosphorus and still be effective. Methods for mitigating corrosion or fouling of a surface in an aqueous system are also provided.
    Type: Grant
    Filed: December 28, 2012
    Date of Patent: May 12, 2015
    Assignee: Ecolab USA Inc.
    Inventor: Jasbir S. Gill
  • Publication number: 20150119245
    Abstract: A method for production and storage of hypochlorous acid is disclosed. The method comprises using high purity water achieved by a combination of softening and reverse osmosis steps. The shelf life is further improved by storing the hypochlorous acid in opaque PET bottles or Nylon/PE bags or nylon bags in a box. Solutions stored in opaque PET bottles exhibit the best stability. Anticipated uses of the extended life hypochlorous acid solution include sanitizer for food contact and non-food contact surfaces, a streak-free cleaner for smooth surfaces and a cut flower life extender. Other biocide uses include water treatment in oil and gas production, cooling tower, lazy river and swimming pools, process water distribution systems, drinking water, portable humidifier, fish tanks and treatment of metalworking fluids and lubricants.
    Type: Application
    Filed: April 28, 2014
    Publication date: April 30, 2015
    Applicant: EIJ Industries, Inc.
    Inventors: Pollis Robertson, JR., Paul Theruviparampil, Louis Bailey
  • Publication number: 20150102255
    Abstract: The present disclosure provides a liquid treatment device and a liquid treatment method each capable of efficiently generating plasma and treating a liquid in a short time period. A liquid treatment device according to the present disclosure includes a first electrode, a second electrode disposed in a liquid, an insulator disposed surrounding the first electrode through a space, the insulator having an opening portion at a position in contact with the liquid, and a power supply that applies an AC voltage or a pulse voltage between the first electrode and the second electrode.
    Type: Application
    Filed: December 18, 2014
    Publication date: April 16, 2015
    Inventors: Shin-ichi IMAI, Hironori KUMAGAI, Mari ONODERA
  • Publication number: 20150090640
    Abstract: Dual action amines provide corrosion protection from corrosion and fouling for a steam generator system and distillation tower of a petroleum or petrochemical refinery. These amines are chosen to provide protection for the steam condensate section of the boiler while simultaneously minimizing amine salt fouling and corrosion problems in the crude distillation tower and overhead condensing system of crude distillation units. The distribution ratio of the dual action amine should be about 4.0 or less, the amine pKa should be in the range of about 7.0 to about 11.0, and the amine HCl salt volatility index should be about 2.5 or less.
    Type: Application
    Filed: January 10, 2013
    Publication date: April 2, 2015
    Inventor: Trevor James Dale
  • Publication number: 20150090665
    Abstract: The present invention relates to activated solutions comprising one or more of hypochlorous acid, bicarbonate ions, and phosphate ions for use in water treatment, in particular water purification and descaling, and processes for making the same.
    Type: Application
    Filed: September 26, 2014
    Publication date: April 2, 2015
    Inventors: Douglas Randolph Vineyard, Jayapregasham Tharamapalan, Irina Vladimirovna Vineyard
  • Publication number: 20150076397
    Abstract: A composition for purifying raw water comprising alum, sodium carbonate, calcium hypochlorite and bentonice is described.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Inventors: Hifza RASHEED, Muhammad Aslam Tahir
  • Patent number: 8980101
    Abstract: A method of inhibiting scale formation and deposition from a feed stream passing through a membrane system is disclosed. The method comprises: (a) controlling the pH of said feed stream within the range between about 7.0 and about 8.2; (b) optionally controlling the temperature of said feed stream within the range between about 5° C. to about 40° C. when the membrane system is an RO system, a NF system, an ED system, an EDI system or a combination thereof; (c) optionally controlling the temperature of said feed stream within the range between about 40° C. and about 80° C. when the membrane system is an MD system; and (d) adding an effective amount of a scale inhibitor to said feed stream, said scale inhibitor comprises an AA-AMPS copolymer.
    Type: Grant
    Filed: September 4, 2008
    Date of Patent: March 17, 2015
    Assignee: Nalco Company
    Inventor: Deepak A. Musale
  • Patent number: 8968593
    Abstract: A product-by-process produces a product having a vibrational frequency to balance the chemistry of water when untreated water is exposed to the product to thereby enhance the biophysical properties of water, without adding any compound to the water. The result of the exposure is that the physical properties of specific gravity, conductivity, and resistivity of water are modified, and the biophysical properties of the treated water in organisms such as humans, including but not limited to hydration, oxygenation, and detoxification, are enhanced as verified by human clinical tests.
    Type: Grant
    Filed: June 14, 2014
    Date of Patent: March 3, 2015
    Inventor: David Schneider
  • Publication number: 20150041397
    Abstract: Mesoporous activated carbon is disclosed. In at least some embodiments, virgin activated carbon to be processed may be coconut shell-based. The enhanced activated carbon may have a mesopore structure of at least about 10%. The enhanced activated carbon may be produced through a calcium-catalyzed activation process. A chelator may also be used. Catalyzed thermal activation may be carried out until a desired mass loss is achieved.
    Type: Application
    Filed: October 28, 2014
    Publication date: February 12, 2015
    Inventor: Adam M. Redding
  • Patent number: 8951467
    Abstract: An embodiment prevents equipment fouling (deposition of unwanted material) in an oil recovery system via implementing passivation of metallic components. By preventing or at least slowing or inhibiting corrosion of equipment or components via passivation, such as passivating heat exchangers, metallic piping, and the like, an embodiment in turn reduces fouling thereof. Other embodiments are described and claimed.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: February 10, 2015
    Assignee: Chemtreat, Inc.
    Inventors: Robert Wright Bedinger, III, Benjamin Edward Niemaseck, Mark Jason Puchovich, John Richardson
  • Patent number: 8945314
    Abstract: A solid composition includes a polysaccharide hybrid polymer composition and a hydratable salt. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from approximately 5% to 90% by weight of the polysaccharide hybrid polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from approximately 10% to 75% by weight of the polysaccharide hybrid polymer composition.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: February 3, 2015
    Assignee: Ecolab USA Inc.
    Inventors: Kerrie E. Walters, Carter Silvernail
  • Publication number: 20150031141
    Abstract: This invention relates to the preparation and making use of a catalyst for the photo-catalytic degradation of methyl tertiary butyl ether (MTBE) in water. Palladium doped on composite Cerium oxide-zinc oxide (Ce2O3—ZnO) photo-catalyst was prepared by wetness incipient impregnation method. This catalyst composition demonstrated 99.6% degradation of MTBE at room temperature in a photo catalytic reaction conducted in oxygen saturated aqueous medium in the presence of UV light.
    Type: Application
    Filed: July 24, 2013
    Publication date: January 29, 2015
    Inventors: Zaki S. Seddigi, SALEH A. SALEH
  • Patent number: 8940183
    Abstract: A novel composition for a photocatalyst Fe doped ZnO nano-particle photocatalyst that enables the decontamination process by degrading toxic organic material such as brilliant cresyl blue, indigo carmine and gentian blue by using solar light is described. In the current disclosure method of making a specific size of the nano photocatalyst is described. Characterization of the photocatalyst, optimal working conditions and efficient use of solar light has been described to show that this photocatalyst is unique. The process described to use the photocatalyst to degrade toxic organic material using the solar light to activate the photocatalyst is cost efficient and cheap to clean our water resources.
    Type: Grant
    Filed: March 6, 2014
    Date of Patent: January 27, 2015
    Assignee: King Abdulaziz University
    Inventors: Abdullah Mohamed Asiri, Sher Bahadar Khan, Khalid Ahmad Alamry, Mohammed M Rahman, Mohamed Saeed Alamoodi
  • Publication number: 20150021514
    Abstract: Highly sulfated, high basicity polyaluminum chlorosulfate compositions that can be made by mixing dry aluminum hydroxychloride with a solution of aluminum sulfate or by diluting a dry mixture of aluminum hydroxychloride and aluminum sulfate with water.
    Type: Application
    Filed: July 17, 2014
    Publication date: January 22, 2015
    Inventor: James M. Dulko
  • Publication number: 20150021276
    Abstract: The present invention provides a method for producing chlorine dioxide by reducing sodium chlorate with a reducing agent in the presence of a strong acid comprising feeding ammonium salt to the reactor to produce also chloramine. The present invention also provides a method for disinfecting water.
    Type: Application
    Filed: January 23, 2013
    Publication date: January 22, 2015
    Inventors: Risto Rahkola, Ville Stalhandske
  • Patent number: 8927654
    Abstract: Provided are a water-treating agent which includes a specific nonionic polymer and a phosphorus compound and can exhibit the ability to inhibit the deposition of silica-based scale under wide ranges of water quality conditions and temperature conditions; and a method of treating water. The inhibitor for silica-based scale includes a nonionic polymer and a phosphorus compound, the nonionic polymer being: a polymer formed by the reaction of an unsaturated double bond and including units derived from at least one monomer selected from the group consisting of (meth)acrylamide, N-substituted (meth)acrylamide and N-vinyl lactam; and/or one or more polymers having an ether group and selected from the group consisting of alkyl alcohol/polyalkylene oxide adducts, aliphatic monocarboxylic acid/polyalkylene oxide adducts, and polyvinyl alcohol/polyalkylene oxide adducts.
    Type: Grant
    Filed: January 14, 2010
    Date of Patent: January 6, 2015
    Assignee: Kurita Water Industries Ltd.
    Inventor: Ikuko Nishida
  • Patent number: 8920671
    Abstract: An aspect of the present disclosure relates to a functional defoaming agent composition, and more particularly to an environmentally-friendly defoaming agent composition containing loess. In an aspect, a loess-based, environmentally-friendly functional defoaming agent includes: 1-20 wt % loess; 10-30 wt % silicone resin having a kinematic viscosity of 10-50,000 cst; 1-5 wt % thickening agent; 1-10 wt % natural surfactant; 1-10 wt % water-purifying agent; and 60-80 wt % water. In another aspect, a loess-based, environmentally friendly functional defoaming agent includes: 1-20 wt % inorganic mixture of loess with at least one selected from among elvan, tourmaline and germanium; 10-30 wt % silicone resin having a kinematic viscosity of 10-50,000 cst; 1-5 wt % thickening agent; 1-10 wt % natural surfactant; 1-10 wt % water-purifying agent; and 60-80 wt % water.
    Type: Grant
    Filed: June 29, 2010
    Date of Patent: December 30, 2014
    Assignee: Green Chemical Co., Ltd.
    Inventors: Gyunghee Park, Haekap Jeong
  • Patent number: 8920714
    Abstract: A corrosion prevention and control composition and method comprises combining primarily two-component polyurethane foam formed by reacting polyols with an isocyanate compound, and a 2 to 10 percent by weight of either an organic or inorganic gas-phase corrosion inhibitor. The closed cell foam provides a barrier protection for the underlying corrodible surface, while the inhibitor protects the metal from the absorbed moisture vapor, thereby preventing corrosion from occurring at the foam/metal interface. The resulting foam and inhibitor composition maintains better adhesion to the underlying corrodible structure in corrosive environments.
    Type: Grant
    Filed: November 5, 2012
    Date of Patent: December 30, 2014
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventor: John V. Kelley, II
  • Publication number: 20140361215
    Abstract: A product-by-process produces a product having a vibrational frequency to balance the chemistry of water when untreated water is exposed to the product to thereby enhance the biophysical properties of water, without adding any compound to the water. The result of the exposure is that the physical properties of specific gravity, conductivity, and resistivity of water are modified, and the biophysical properties of the treated water in organisms such as humans, including but not limited to hydration, oxygenation, and detoxification, are enhanced as verified by human clinical tests.
    Type: Application
    Filed: June 14, 2014
    Publication date: December 11, 2014
    Inventor: David Schneider
  • Patent number: 8889033
    Abstract: The invention relates to an aqueous solution of acrylic acid polymers, obtainable by polymerization of acrylic acid in feed mode with peroxodisulfate as initiator in the presence of hypophosphite in water as solvent, wherein (i) water and optionally one or more ethylenically unsaturated comonomers are initially charged, and (ii) acrylic acid in acidic, unneutralized form, optionally one or more ethylenically unsaturated comonomers, aqueous peroxodisulfate solution and aqueous hypophosphite solution are added continuously, and (iii) a base is added on completion of the acrylic acid feed to the aqueous solution, wherein the comonomer content does not exceed 30% by weight, based on total monomer content.
    Type: Grant
    Filed: February 1, 2012
    Date of Patent: November 18, 2014
    Assignee: BASF SE
    Inventors: Jürgen Detering, Bolette Urtel, Stephan Nied, Ewald Heintz
  • Publication number: 20140335589
    Abstract: Method and apparatus for separating a target substance from a fluid or mixture. Capsules having a coating and stripping solvents encapsulated in the capsules are provided. The coating is permeable to the target substance. The capsules having a coating and stripping solvents encapsulated in the capsules are exposed to the fluid or mixture. The target substance migrates through the coating and is taken up by the stripping solvents. The target substance is separated from the fluid or mixture by driving off the target substance from the capsules.
    Type: Application
    Filed: July 25, 2014
    Publication date: November 13, 2014
    Inventors: Roger D. Aines, Christopher M. Spadaccini, Joshuah K. Stolaroff, William L. Bourcier, Jennifer A. Lewis, Eric B. Duoss, John J. Vericella
  • Patent number: 8883035
    Abstract: A water hardness controlling agent includes a polyacrylic acid or salt thereof having a molecular weight of between about 1,000 and about 50,000 g/mol, an acrylic-maleic acid copolymer or salt thereof having a molecular weight of between about 1,000 and about 100,000 g/mol and a phosphonocarboxylic acid or salt thereof. A ratio of acrylic-maleic acid copolymer or salt thereof to polyacrylic acid or salt thereof to phosphonocarboxylic acid or salt thereof in parts per million is about 1-30:10-80:6-20.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: November 11, 2014
    Assignee: Ecolab USA Inc.
    Inventors: Altony J. Miralles, Carter M. Silvernail
  • Publication number: 20140319058
    Abstract: A novel metal-organic framework (MOF) templated process for the synthesis of highly porous inorganic sorbents for removing radionuclides, actinides, and heavy metals is disclosed. The highly porous nature of the MOFs leads to highly porous inorganic sorbents (such as oxides, phosphates, sulfides, etc) with accessible surface binding sites that are suitable for removing radionuclides from high level nuclear wastes, extracting uranium from acid mine drainage and seawater, and sequestering heavy metals from waste streams. In some cases, MOFs can be directly used for removing these metal ions as MOFs are converted to highly porous inorganic sorbents in situ.
    Type: Application
    Filed: April 1, 2014
    Publication date: October 30, 2014
    Inventors: Kathryn M.L. Taylor-Pashow, Wenbin Lin, Carter W. Abney
  • Publication number: 20140306148
    Abstract: A process for the preparation from a partially decomposed organic material like peat a granulated or pelletized sorption medium using low-temperature, thermal activation of the sorption medium to produce a high degree of granule or pellet hardness balanced against an efficacious level of ion-exchange and adsorption capacity, followed by chemical treatment of the thermally-activated sorption material via an acid solution and a salt solution to increase its ion-exchange and adsorption performance while minimizing the transfer of natural impurities found in the sorption medium to an aqueous solution is provided by this invention. The sorption medium of this invention can be used in a variety of aqueous solution treatment processes, such as wastewater treatment.
    Type: Application
    Filed: March 14, 2014
    Publication date: October 16, 2014
    Applicants: Regents of the University of Minnesota, American Peat Technology, LLC
    Inventors: Igor V. Kolomitsyn, Peggy Wallgren Jones, Douglas A. Green
  • Patent number: 8858821
    Abstract: A water treatment composition capable of effectively adsorbing pollutants from water is described. The composition includes magnetic extractants, which comprise magnetite nanoparticles containing functional groups. The composition is used to remove from water and aqueous streams oils and other contaminants. A process for removing contaminants from water and apparatus used in the process are also described.
    Type: Grant
    Filed: December 14, 2010
    Date of Patent: October 14, 2014
    Assignee: King Abdulaziz City for Science and Technology
    Inventors: Sulaiman M. Alfadul, Abdulrahman I. Alabdula'aly, Mujahid A. Khan
  • Patent number: 8858827
    Abstract: A water treatment agent for removing pollutant by reinforcing potassium permanganate with intermediate manganese consists of a potassium permanganate and a chelating agent, or, alternatively, consists of a potassium permanganate, a chelating agent and an inducer. The chelating agent is capable of forming a coordination complex with the intermediate manganese which is produced during the reaction of potassium permanganate and organic substance. Thus self decomposition of intermediate manganese is reduced so that the effective utilization rate is increased and the capability for potassium permanganate to degrade organic pollutants is enhanced. The inducer accelerates the production of the intermediate manganese and increases the utilization rate so that the capability of potassium permanganate for degrading the organic pollutants is further enhanced.
    Type: Grant
    Filed: June 8, 2009
    Date of Patent: October 14, 2014
    Assignee: Harbin Institute of Technology
    Inventors: Jun Ma, Jin Jiang, Pang Suyan, Liu Zenghe
  • Patent number: 8853144
    Abstract: A composition includes a polysaccharide graft polymer composition. In one embodiment, the polysaccharide graft polymer composition includes a polysaccharide residue present in an amount from about 5% to about 90% by weight of the polysaccharide graft polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide graft polymer composition.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: October 7, 2014
    Assignee: Ecolab USA Inc.
    Inventors: Carter Silvernail, Erik C. Olson, Klin Rodrigues
  • Patent number: 8841246
    Abstract: A composition includes a polysaccharide hybrid polymer composition. In one embodiment, the polysaccharide hybrid polymer composition includes a polysaccharide residue present in an amount from about 5% to about 90% by weight of the polysaccharide hybrid polymer composition and a residue of at least one ethylenically unsaturated monomer present in an amount from about 10% to about 75% by weight of the polysaccharide hybrid polymer composition.
    Type: Grant
    Filed: July 30, 2012
    Date of Patent: September 23, 2014
    Assignee: Ecolab USA Inc.
    Inventors: Carter Silvernail, Erik C. Olson, Klin Rodrigues
  • Patent number: 8840804
    Abstract: A formula and method for reducing water hardness includes the combination of a sulfate donor, salt of phosphoric acid, and salt of sulfamic acid. Preferred formulas include effective amounts of sodium bisulfate, sodium hexametaphosphate, and sulfamic acid. In a swimming pool, preferred formulas are effective in reducing calcium to under 200 ppm within a two day period. In addition, preferred formulas provide ongoing effectiveness in suppressing scaling, staining and cloudy water.
    Type: Grant
    Filed: April 3, 2009
    Date of Patent: September 23, 2014
    Assignee: United Chemical Corp.
    Inventor: Scott Hamilton
  • Publication number: 20140271916
    Abstract: Described herein are elements comprising a p-type semiconductor comprising mixed valence oxide compounds and an n-type semiconductor having a deeper valence band than the p-type semiconductor valence bands wherein the semiconductor types are in ionic communication with each other. The elements enhance photocatalytic activity.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Inventors: Ekambaram Sambandan, Bin Zhang
  • Publication number: 20140259336
    Abstract: A device may comprise first matter including a first material adapted, when in contact with a liquid, to clean the liquid and to maintain the liquid at a first color. The device may include second matter including a second material adapted, when in contact with the liquid, to maintain the liquid at a second color. The device may further include an interface configured to limit an exposure of the second material to the liquid before at least a portion of the first material contacts the liquid.
    Type: Application
    Filed: March 14, 2014
    Publication date: September 18, 2014
    Inventor: Aron Schuftan
  • Publication number: 20140251920
    Abstract: The present invention provides improved methods for purifying and/or removing multiply charged cations and suspended solids from water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing multiply charged cations and suspended solids from an aqueous or oil/aqueous mixed phase via foam fractionation. According to the invention, a hydrophobically modified polymer that acts as an associative thickener is used in the presence of a source of alkalinity or anionic reactant as well as surfactant in appropriate ratios to facilitate multiply charged cation and suspended solids removal for water purification in any of a number of commercial, environmental and industrial applications.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: ECOLAB USA INC.
    Inventors: Victor Fuk-Pong Man, Michael Charles Denoma
  • Publication number: 20140251919
    Abstract: The present invention provides improved methods for purifying and/or removing oily particles, and/or contaminants suspended or dissolved in water. In particular the process relates to an additive composition that has the appropriate surfactant characteristics for effectively removing an oil phase from an oil/aqueous mixed phase via foam fractionation. According to the invention, a hydrophobically modified polymer that acts as an associative thickener is combined with surfactant in appropriate ratios to facilitate oil removal for water purification in any of a number of commercial, environmental and industrial applications.
    Type: Application
    Filed: March 8, 2013
    Publication date: September 11, 2014
    Applicant: ECOLAB USA INC.
    Inventors: Victor Fuk-Pong Man, Michael Charles Denoma, Steven E. Lentsch
  • Publication number: 20140224733
    Abstract: The combination of colloidal silica in conjunction with a chemical, such as a cationically-modified water soluble polymer, e.g. aluminum brine dispersion polymer, clarifies combinations of oil and water, for instance wastewater comprising an oil-in-water emulsion. The colloidal silica may have an average silica particle size of about 0.5 to about 10 nanometers.
    Type: Application
    Filed: February 12, 2014
    Publication date: August 14, 2014
    Applicant: Baker Hughes Incorporated
    Inventors: KEITH A. OSNESS, Carlos J. Diaz
  • Publication number: 20140217024
    Abstract: The invention provides an efficient method to purify an aqueous solution, typically mine drainage water, especially of anions and cations present in the aqueous solution as dissolved solids, the anions and cations are removed by treatment with a positively charged extractant having at least eight carbon atoms, whereby an unstable emulsion is formed; the unstable emulsion is allowed to break into an extract phase loaded with the anions and cations, and a water phase depleted in anions and cations; a floc inherently forms in the loaded extractant phase and then the loaded extractant phase and floc are separated from the purified water and treated to remove the anions and cations as concentrated useful products; the treated aqueous phase now reduced in anion and/or cation content is also separated from the emulsion as a purified aqueous solution. The extractant phase is preferably recycled. A continuous water purification process is provided.
    Type: Application
    Filed: November 18, 2013
    Publication date: August 7, 2014
    Inventors: Bruce F. Monzyk, F. Michael Von Fahnestock, James K. Rose, H. Nick Conkle, Ming Wang, Satya P. Chauhan, Ruey K. Bruce, Tenisha Highsmith
  • Patent number: 8784679
    Abstract: Embodiments of a method of producing an aqueous powder composition for treating water comprise mixing sodium metabisulfite powder with amines, wherein the amines comprises liquid cyclohexylamine, and adding water to the mixture of sodium metabisulfite powder and liquid cyclohexylamine to catalyze the production of the aqueous powder composition.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: July 22, 2014
    Assignee: Dubois Chemicals, Inc.
    Inventors: Richard M. Moore, Lyle H. Steimel
  • Publication number: 20140183404
    Abstract: A novel composition for a photocatalyst Fe doped ZnO nano-particle photocatalyst that enables the decontamination process by degrading toxic organic material such as brilliant cresyl blue, indigo carmine and gentian blue by using solar light is described. In the current disclosure method of making a specific size of the nano photocatalyst is described. Characterization of the photocatalyst, optimal working conditions and efficient use of solar light has been described to show that this photocatalyst is unique. The process described to use the photocatalyst to degrade toxic organic material using the solar light to activate the photocatalyst is cost efficient and cheap to clean our water resources.
    Type: Application
    Filed: March 6, 2014
    Publication date: July 3, 2014
    Applicant: KING ABDULAZIZ UNIVERSITY
    Inventors: ABDULLAH MOHAMED ASIRI, SHER BAHADAR KHAN, KHALID AHMAD ALAMRY, MOHAMMED M. RAHMAN, MOHAMED SAEED ALAMOODI
  • Publication number: 20140183141
    Abstract: The present invention refers to lightweight and settable photocatalytic compositions and solid composites; methods of preparing the compositions and solid composites; and their use in water purification. The compositions are comprised of photocatalysts such as titanium dioxide (TiO2) and zinc oxide (ZnO), lightweight glass bubbles, and a hydraulic cementing binder. The lightweight and settable photocatalytic compositions can be formed into lightweight photocatalytic solid composites and/or structures by mixing with water and moist curing. This invention also describes relatively simple, fast, and cost effective methodologies to photodope the TiO2—ZnO compositions and composites with silver (Ag), to enhance and extend the photocatalytic activity from the ultraviolet into the visible light spectrum. The lightweight and settable TiO2—ZnO and Ag—TiO2—ZnO compositions are used in making solids, structures, coatings, and continuous or semi-continuous water purification panels for purifying contaminated water.
    Type: Application
    Filed: December 30, 2013
    Publication date: July 3, 2014
    Inventor: Deepika Saraswathy Kurup
  • Patent number: 8758556
    Abstract: A method for inhibiting the formation, deposition and adherence of calcium salt scale to metallic and other surfaces in the equipment, vessels and/or piping of a chemical pulp process facility comprising adding an effective scale inhibiting amount of a composition to the alkaline aqueous mixture in the digester of said chemical pulping process. Said composition consists of at least one phosphonate component (I) and at least one component (II) consisting of at least one carboxylated fructan compound.
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: June 24, 2014
    Assignee: Dequest AG
    Inventor: Sheldon Phillip Verrett
  • Patent number: 8753531
    Abstract: A product-by-process produces a product having a vibrational frequency to balance the chemistry of water when untreated water is exposed to the product to thereby enhance the biophysical properties of water, without adding any compound to the water. The result of the exposure is that the physical properties of specific gravity, conductivity, and resistivity of water are modified, and the biophysical properties of the treated water in organisms such as humans, including but not limited to hydration, oxygenation, and detoxification, are enhanced as verified by human clinical tests.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: June 17, 2014
    Inventor: David Schneider
  • Publication number: 20140158632
    Abstract: Described herein are methods of separating a first soluble salt from water that contains the first soluble salt and a second soluble salt, by (a) adding a composition to a water product containing a first soluble salt and a second soluble salt, the composition comprising seed crystals composed substantially of a target insoluble salt to be formed from the first soluble salt; and (b) collecting the target insoluble salt. These methods may be used, for example, to separate strontium from water that includes at least one soluble strontium salt and a second soluble salt (such as one soluble calcium salt).
    Type: Application
    Filed: December 6, 2013
    Publication date: June 12, 2014
    Applicant: ADVANCED WATER RECOVERY, LLC
    Inventors: Rakesh Govind, Robert Foster