Patents Assigned to ChemTreat, Inc.
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Patent number: 10640673Abstract: Methods are described for maintaining unpaved roads. The methods include applying an aqueous composition to a section of an unpaved road (such as a mine haul road in a mine). The aqueous composition includes from 5 to 10,000 ppm of a synthetic polymer in water, and may be applied periodically. The synthetic polymer may be compatible with chemical processes employed by the mine, and the method may also include subsequently mining the section of the mine haul road.Type: GrantFiled: February 2, 2016Date of Patent: May 5, 2020Assignee: CHEMTREAT, INC.Inventors: Donald Roe, James Wilkins
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Publication number: 20200079673Abstract: Methods and systems are provided for removing calcite deposits by contacting polysuccinimide with water to dissolve the polysuccinimide and supplying the dissolved polysuccinimide to surfaces fouled with the calcite deposits. The pH of the water that dissolves the polysuccinimide can be adjusted based on the amount of calcium in the water. Adjusting the pH will affect the dissolution rate of the polysuccinimide in water and the rate of removal of the calcite deposits.Type: ApplicationFiled: September 12, 2019Publication date: March 12, 2020Applicant: CHEMTREAT, INC.Inventors: Kevin GOTTSCHALK, Phil GODSAVE, Raymond M POST
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Patent number: 10471165Abstract: Devices and methods for sterilizing and/or disinfecting workpieces, such as medical and dental instruments. The device can include a chamber that receives the workpieces and can be sealed. The chamber is filled with chlorine dioxide gas to a threshold concentration and for a time sufficient to sterilize and/or disinfect the workpieces.Type: GrantFiled: August 28, 2017Date of Patent: November 12, 2019Assignee: CHEMTREAT, INC.Inventors: John Richardson, Kevin White, Benjamin Niemaseck, Douglas McIlwaine, James Wilkins, Rob Bedinger, Yatao Liu, James Liang-Hiong Chia, Stephen C. Fanning, Tim Taylor
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Patent number: 10407778Abstract: A method for inhibiting corrosion of a corrodible metal surface that contacts water in a water system is provided. The method may include introducing into the water a treatment composition including an ex-situ halogenated triazole compound in an amount sufficient for inhibiting corrosion. A method of measuring a concentration of the ex-situ halogenated triazole compound in water in a water system is also provided. The method may include inducing the halogenated triazole compound to fluoresce and measuring an intensity of the fluorescence emitted from the water to determine the concentration of the halogenated triazole compound in the water. The concentration of the halogenated triazole can be monitored and controlled. The concentration of the halogenated triazole can be adjusted to a desired level based on the measured fluorescence value.Type: GrantFiled: June 9, 2017Date of Patent: September 10, 2019Assignee: CHEMTREAT, INCInventors: Prasad Kalakodimi, Raymond Post, Caibin Xiao, Dale Stuart
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Publication number: 20190116787Abstract: Methods and liquid compositions for stabilizing an oxidizing biocide in a water system. The liquid composition comprises a hydantoin, and a surfactant, a ratio of a concentration of the hydantoin to the surfactant in the liquid composition is in a range of 1:1 to 99:1 by volume. The method comprises mixing a hydantoin, a surfactant and an oxidizing biocide with water to form a liquid treatment composition, and then adding the liquid treatment composition to a water stream in the water system, the liquid treatment composition improving the efficacy of the oxidizing biocide in the water stream.Type: ApplicationFiled: October 24, 2017Publication date: April 25, 2019Applicant: CHEMTREAT, INC.Inventors: Kevin BOUDREAUX, Prasad KALAKODIMI, Douglas MCILWAINE, Saarika KONERU
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Patent number: 10221489Abstract: Compositions and methods for preventing corrosion of equipment having a corrodible metal surface that contacts water in a hydrostatic system are provided. Compositions may include a liquid-phase corrosion inhibitor and vapor-phase corrosion inhibitor. Methods may include introducing into the hydrostatic system a liquid-phase corrosion inhibitor, vapor-phase corrosion inhibitor and/or a scaling inhibitor. A protective film can be formed on the corrodible metal surface.Type: GrantFiled: January 27, 2016Date of Patent: March 5, 2019Assignee: CHEMTREAT, INCInventors: Rajendra Prasad Kalakodimi, John Richardson, Curt Turner
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Patent number: 10214459Abstract: Methods are described for preventing corrosion in a corrosion-aggressive media. The methods include combining a stannous corrosion inhibitor composition with a corrosion-aggressive media (such as a nitrogen-based solution, or more specifically a liquid solution of AN or UAN) to provide a treated solution. The stannous corrosion inhibitor composition may include a caustic. Also described is a liquid including from 0.1 wt % to 25 wt % of a stannous salt and from 1 wt % to 50 wt % of a caustic, and a liquid composition including a solution of urea ammonium nitrate and a stannous material. The liquid and stannous corrosion inhibitor compositions substantially prevent corrosion of a metal surface even when used in very small amounts and at a low pH.Type: GrantFiled: July 12, 2016Date of Patent: February 26, 2019Assignee: CHEMTREAT, INC.Inventors: Rajendra Prasad Kalakodimi, Joseph Clatterbuck, Tzongyeu Du
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Publication number: 20190055140Abstract: Methods for removing a target selenium entity from fluids by treating the fluid with a rare earth impregnated media containing an immobilized rare earth. The methods including obtaining a contaminated fluid comprising water and dissolved selenate; contacting the feed fluid with a rare earth impregnated media for removal of at least a portion of the selenate from the feed fluid thereby forming a treated fluid comprising less selenium than the feed fluid.Type: ApplicationFiled: August 20, 2018Publication date: February 21, 2019Applicant: CHEMTREAT, INC.Inventors: William H. HENDERSON, John Philip RICHARDSON, Vladimir DJUKANOVIC
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Patent number: 10174429Abstract: There are provided methods and methods and compositions for suppressing corrosion of a corrodible metal surface that contacts a water stream in a water system. The method comprises introducing into the water stream a treatment composition, the treatment composition including a Tin(II) corrosion inhibitor and a hydroxycarboxylic acid promoter.Type: GrantFiled: November 5, 2015Date of Patent: January 8, 2019Assignee: CHEMTREAT, INCInventors: Rajendra Prasad Kalakodimi, Curt Turner, DeAnn Wills-Guy
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Patent number: 10024751Abstract: Multiple chemical tracers are provided in a fluid system, and measured to evaluate parameters of the system. The multiple chemical tracers include at least one reactive chemical tracer that provides a measurable signal with an intensity that changes as the reactive chemical tracer reacts in the fluid system. The signals of the multiple chemical tracers are compared to each other to evaluate a system parameter, such as temperature, pH, or system events.Type: GrantFiled: August 15, 2016Date of Patent: July 17, 2018Assignee: CHEMTREAT, INCInventors: John Richardson, Kevin White, Patrick Wood, James Wilkins
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Patent number: 10005665Abstract: Methods and systems for producing high purity gaseous chlorine dioxide are provided. A solid chlorite reactant is contacted with an ozone-containing reactant gas, or a gas containing both ozone and a component that reacts with any hydroxide byproduct (such as carbon dioxide), to produce chlorine dioxide. The reaction can be monitored and controlled to ensure that excess chlorite reactant is provided and to prevent ozone from passing into the product gas.Type: GrantFiled: October 8, 2015Date of Patent: June 26, 2018Assignee: CHEMTREAT, INC.Inventors: John Richardson, Kevin White, Benjamin Niemaseck, Douglas McIlwaine, James Wilkins
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Patent number: 9977004Abstract: Systems and methods are provided for measuring the amount of cationic organic water treatment additives in water systems. Disclosed systems and methods monitor, analyze and control the amounts of cationic organic water treatment additive supplied to the water. Disclosed systems and methods may include various dyes and surfactants for facilitating the monitoring and control of the cationic organic water treatment additives.Type: GrantFiled: December 22, 2014Date of Patent: May 22, 2018Assignee: CHEMTREAT, INC.Inventors: John Richardson, Douglas McIlwaine, Benjamin Niemaseck
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Patent number: 9976090Abstract: Methods for preventing or reducing fouling of equipment having a metal surface that contacts a reaction byproduct in a fuel production system are provided. The method may include treating the metal surface in the fuel production system by contacting a fouling inhibitor with the metal surface. The fouling inhibitor includes a bicyclic organic compound with an aromatic ring and a heterocyclic ring, and is delivered to the metal surface of the system in sufficient amount and for sufficient time to reduce a fouling deposit on at least a portion of the metal surface.Type: GrantFiled: November 3, 2014Date of Patent: May 22, 2018Assignee: CHEMTREAT, INCInventor: Vince Spaeth
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Publication number: 20180055963Abstract: Devices and methods for sterilizing and/or disinfecting workpieces, such as medical and dental instruments. The device can include a chamber that receives the workpieces and can be sealed. The chamber is filled with chlorine dioxide gas to a threshold concentration and for a time sufficient to sterilize and/or disinfect the workpieces.Type: ApplicationFiled: August 28, 2017Publication date: March 1, 2018Applicants: CHEMTREAT, INC., METREXInventors: John RICHARDSON, Kevin WHITE, Benjamin NIEMASECK, Douglas MCILWAINE, James WILKINS, Rob BEDINGER, Yatao LIU, James CHIA, Stephen FANNING, Tim TAYLOR
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Patent number: 9889452Abstract: There is provided methods for separating a target material from a raw material by mixing the raw material with water to form a slurry, adding a collector compound to the slurry to modify a relative hydrophobicity of a surface of the target material, adding a facilitator compound to enhance the modification of the relative hydrophobicity of the surface, and forming a froth including a concentrate of the target material. Disclosed methods may also include adding a facilitator compound to a raw material slurry that has been treated with a collector compound and a reagent for neutralizing the collector compound.Type: GrantFiled: December 22, 2014Date of Patent: February 13, 2018Assignee: CHEMTREAT, INC.Inventors: Brian Danyliw, John Richardson
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Patent number: 9890061Abstract: Methods for removing a target anion entity, such as a phosphate ion, from fluids by treating the fluid with a substrate containing an immobilized rare earth, the substrate being either a first loaded substrate including a first immobilized cationic rare earth, the first loaded substrate being formed by precipitating a rare earth in a clay such that the rare earth is fixed inside a porous structure of the clay and/or fixed on the surface of the clay; or a second loaded substrate comprising a second immobilized cationic rare earth that is bonded to the second loaded substrate via a chelating ligand.Type: GrantFiled: October 5, 2015Date of Patent: February 13, 2018Assignee: CHEMTREAT, INC.Inventors: John Richardson, Vladimir Djukanovic, William Henderson
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Patent number: 9890066Abstract: Disclosed are combinations of one or more cationic starch(es) and aluminum salts to produce a composition for detackifying paint at lower doses than those required using conventional treatments while providing improved handling and a more “green” environmental profile. The compositions may be utilized in methods of detackifying and dispersing solvent borne paints and/or coagulating/flocculating and dispersing waterborne paints during the treatment of paint spray booth water.Type: GrantFiled: October 7, 2011Date of Patent: February 13, 2018Assignee: CHEMTREAT, INC.Inventor: Robert J. Guerrini
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Publication number: 20180024103Abstract: Methods and systems are disclosed for analyzing and treating a fluid containing a peroxyacid and/or peroxide. A method of analyzing the fluid includes introducing into the fluid a decomposition agent that catalyzes decomposition of the peroxyacid and/or peroxide into decomposition products including oxygen, then directly or indirectly measuring an amount of oxygen produced after introduction of the decomposition agent, and determining an amount of the peroxyacid and/or peroxide present in the fluid. The amount of peroxyacid and/or peroxide in the fluid can also be monitored and controlled by further adjusting the amount of the peroxyacid and/or peroxide in the fluid based on the determined amount thereof. A system for performing the methods includes a decomposition agent infusion device for introducing the decomposition agent into a fluid sample, and a sensor for directly or indirectly measuring an amount of oxygen produced after introduction of the decomposition agent.Type: ApplicationFiled: July 19, 2017Publication date: January 25, 2018Applicant: CHEMTREAT, INC.Inventors: John RICHARDSON, Mark PUCHOVICH, Benjamin NIEMASECK, Kevin WHITE, James WILKINS, Robert BEDINGER
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Publication number: 20180016197Abstract: Methods are described for preventing corrosion in a corrosion-aggressive media. The methods include combining a stannous corrosion inhibitor composition with a corrosion-aggressive media (such as a nitrogen-based solution, or more specifically a liquid solution of AN or UAN) to provide a treated solution. The stannous corrosion inhibitor composition may include a caustic. Also described is a liquid including from 0.1 wt % to 25 wt % of a stannous salt and from 1 wt % to 50 wt % of a caustic, and a liquid composition including a solution of urea ammonium nitrate and a stannous material. The liquid and stannous corrosion inhibitor compositions substantially prevent corrosion of a metal surface even when used in very small amounts and at a low pH.Type: ApplicationFiled: July 12, 2016Publication date: January 18, 2018Applicant: CHEMTREAT, INC.Inventors: Rajendra Prasad KALAKODIMI, Joseph CLATTERBUCK, Tzongyeu DU
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Publication number: 20170356093Abstract: A method for inhibiting corrosion of a corrodible metal surface that contacts water in a water system is provided. The method may include introducing into the water a treatment composition including an ex-situ halogenated triazole compound in an amount sufficient for inhibiting corrosion. A method of measuring a concentration of the ex-situ halogenated triazole compound in water in a water system is also provided. The method may include inducing the halogenated triazole compound to fluoresce and measuring an intensity of the fluorescence emitted from the water to determine the concentration of the halogenated triazole compound in the water. The concentration of the halogenated triazole can be monitored and controlled. The concentration of the halogenated triazole can be adjusted to a desired level based on the measured fluorescence value.Type: ApplicationFiled: June 9, 2017Publication date: December 14, 2017Applicant: CHEMTREAT, INC.Inventors: Prasad KALAKODIMI, Raymond POST, Caibin XIAO, Dale STUART