Patents Assigned to Nalco Company
  • Patent number: 9388044
    Abstract: A method of producing stable disinfectant for use as a biocidal composition. The method comprises: providing reagents, asynchronously feeding the reagents into a wide space, and allowing all the reagents to come into contact and mix with each other. The reagents comprise: a) an amine source in concentrated form, b) an oxidizing halogen compound in concentrated form, and c) a diluent. The use of asynchronous feeding and a wide space results in a dynamic biocide regimen. This regimen results in a changing environment that infestations have difficulty adapting to. This method also imparts superior results due to the avoidance of channeling effects which would otherwise weaken the effects of the biocide.
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: July 12, 2016
    Assignee: NALCO COMPANY
    Inventors: Amit Gupta, Laura E. Rice, Randall Elliott, Yu-Mei Lu, Wen Li Tu
  • Patent number: 9382467
    Abstract: A corrosion inhibitor composition and method of inhibiting corrosion on a surface in an oil or gas application is disclosed and claimed. The corrosion inhibitor includes at least one fatty acid; at least one alkanolamine; at least one alkylamine; and at least one organic sulfonic acid. The method of inhibiting corrosion includes on a surface in an oil or gas application comprises contacting an effective dosage of the corrosion inhibitor with the surface.
    Type: Grant
    Filed: November 21, 2013
    Date of Patent: July 5, 2016
    Assignee: Nalco Company
    Inventors: G. Richard Meyer, Keith Allen Monk
  • Publication number: 20160185636
    Abstract: A composition and method of inhibiting scale formation and deposition from a feed stream passing through a membrane system is disclosed. The composition that is used to inhibit scale formation includes a composition containing an AA-AMPS copolymer and PMA.
    Type: Application
    Filed: April 22, 2011
    Publication date: June 30, 2016
    Applicant: Nalco Company
    Inventors: Deepak A. Musale, Benjamin Bingjia Yao
  • Publication number: 20160152878
    Abstract: This invention is method of producing a creping cylinder adhesive comprising: contacting a dry form PVOH with a liquid form PVA at a temperature of less than 80° C., maintaining the PVOH and PVA at a temperature of between 90-95° C. until the PVOH is completely dissolved into a medium, and allowing the medium to cool to below 80° C.
    Type: Application
    Filed: February 8, 2016
    Publication date: June 2, 2016
    Applicant: NALCO COMPANY
    Inventors: GARY S. FURMAN, JR., MINGLI WEI, CHRISTOPHER D. KALEY, DAVID J. CASTRO, VLADIMIR A. GRIGORIEV
  • Patent number: 9353261
    Abstract: Disclosed and claimed is a microemulsion-based demulsifier composition and a method of demulsifying an emulsion comprising hydrocarbon and water. The demulsifier composition includes (i) an oil-like phase comprising at least one nonionic surfactant having a hydrophilic-lipophilic balance (HLB) of less than about 9; (ii) a coupling agent capable of stabilizing the demulsifier composition; (iii) at least one water-soluble or dispersible nonionic surfactant that is different from the at least one nonionic surfactant in the oil-like phase; (iv) at least one additional surfactant selected from anionic, cationic, amphoteric, and combinations thereof; (v) at least one nonionic demulsifier; and (vi) water.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: May 31, 2016
    Assignee: Nalco Company
    Inventor: Duy T. Nguyen
  • Patent number: 9352980
    Abstract: Disclosed is a method of controlling a real-time oxidation-reduction potential in a hot water system to inhibit corrosion in the hot water system. The method includes defining one or more operational protective zones in the hot water system. One or more of the operational protective zones includes an oxidation-reduction potential probe that is operable to measure a real-time oxidation-reduction potential in the hot water system at operating temperature and pressure. The probe transmits the measured real-time potential to the controller, which assesses and interprets the transmitted potential to determine whether it conforms to an oxidation-reduction potential setting. If the measured potential does not conform the oxidation-reduction potential setting, the controller is operable to feed or remove one or more active chemical species into or from the hot water system and further operable to change at least one system parameter.
    Type: Grant
    Filed: July 2, 2014
    Date of Patent: May 31, 2016
    Assignee: Nalco Company
    Inventors: Peter D. Hicks, David A. Grattan
  • Publication number: 20160122196
    Abstract: In the mining process, linear, branched, hyperbranched or dendrimeric polyols or mixtures thereof are employed as process stabilization aids for aqueous solutions and, or suspensions of metal salts. A specific application area of the polyols is the stabilization of bauxite liquor in the Bayer process of producing alumina from bauxite.
    Type: Application
    Filed: January 11, 2016
    Publication date: May 5, 2016
    Applicant: Nalco Company
    Inventors: Jing Wang, Xiaojin Harry Li, Heinrich Enoch Bode
  • Patent number: 9328003
    Abstract: The invention provides methods and compositions for separating metals from a liquid medium, the method uses a copolymer derived from at least two monomers: acrylic-x and an alkylamine, wherein said polymer is modified to contain a functional group capable of scavenging one or more compositions containing one or more metals are disclosed. The treated liquid is then passed through a filtration system. The scavenging effect of the combination of the treatment with the filtration is unexpectedly greater than the sum of its parts.
    Type: Grant
    Filed: November 11, 2013
    Date of Patent: May 3, 2016
    Assignee: Nalco Company
    Inventors: Deepak A. Musale, Daniel E. Schwarz, Paul J. Zinn, Bruce A. Keiser, Jitendra T. Shah
  • Patent number: 9315715
    Abstract: Methods of treating hydrocarbon fluids to reduce the apparent viscosity of hydrocarbon fluids encountered in petroleum operations and reducing deposits within a well annulus or a pipeline are disclosed. The method comprises contacting such fluids with a hydrophobically modified polysaccharide to create water external emulsions. The disclosed hydrophobically modified polysaccharides have been demonstrated to reduce interfacial tension to below 65 mN/m and thereby improve the transportability of inherently viscous hydrocarbon fluids, such as heavy crude oils.
    Type: Grant
    Filed: October 20, 2009
    Date of Patent: April 19, 2016
    Assignee: Nalco Company
    Inventors: Marcus D. Faust, Jr., Thomas M. Weathers, Jr., Duy T. Nguyen
  • Patent number: 9295745
    Abstract: The invention is directed towards methods and compositions for identifying the specific microorganisms present in a particular portion of a papermaking processes. The method involves obtaining and comparing a diversity index of a sample from the process. Because no system is completely free from biological infestation, utilizing information taken from the changes in the populations provides information useful in protecting the system from unwanted effects. Not only does the diversity index allow for the distinguishing between biological and non-biological events, it even allows for the prediction of problems without previously knowing that a particular organism will cause a particular problem.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: March 29, 2016
    Assignee: NALCO COMPANY
    Inventors: Laura E. Rice, Liliya Lund
  • Patent number: 9290802
    Abstract: The invention is directed towards methods and compositions for identifying the specific microorganisms present in a particular potion of a papermaking processes. The method involves obtaining a sample from the process which is such that little or no live examples of the microorganism remain. However because DNA from the organisms is still present, an analysis which identifies portions of DNA specific to the particular organism will correctly identify the microorganism present. This allows for analysis of infestations present on felts or paper sheets which typically no longer have many live microorganisms on them when samples are taken for analysis.
    Type: Grant
    Filed: December 23, 2013
    Date of Patent: March 22, 2016
    Assignee: NALCO COMPANY
    Inventors: Laura E. Rice, Liliya Lund
  • Patent number: 9290620
    Abstract: The invention provides a method of efficiently producing branched, cyclic glycerol-based polyols with a co-product as anti-biodegrading agent from inexpensive readily available glycerol monomer. The method involves polymerizing glycerol or glycerol with at least another monomer to multiple other monomers in the presence of particular amount of a strong base as the catalyst under a particular distillation environment. The polyol produced by the inventive method is beneficial of reducing scales in Bayer liquid for aluminum production process and improving brightness of coated paper substrates without greening effect.
    Type: Grant
    Filed: October 21, 2009
    Date of Patent: March 22, 2016
    Assignee: NALCO COMPANY
    Inventors: Xiaojin Harry Li, Joanna L. Shih, Heinrich E. Bode, Jing Wang, Frederick J. Swiecinski
  • Patent number: 9284625
    Abstract: A hyperbranched polyglycerol is employed as a process stabilization aid of pregnant liquor of a Bayer process of producing alumina from bauxite. The hyperbranched polyglycerol has a molecular weight of from about 1,000 to about 1,000,000.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: March 15, 2016
    Assignee: Nalco Company
    Inventors: Jing Wang, Xiaojin Harry Li, Heinrich Enoch Bode
  • Patent number: 9283511
    Abstract: Composite materials for carbon dioxide (C02) capture that include: (1) a mesoporous carbon source; and (2) an in situ polymerized polymer that is associated with the mesoporous carbon source, where the in situ polymerized polymer is selected from the group consisting of thiol-based polymers, amine-based polymers, and combinations thereof. Methods of making the composite materials for C02 capture include: (1) associating a mesoporous carbon source with monomers, where the monomers are selected from the group consisting of thiol-based monomers, amine-based monomers, and combinations thereof; and (2) polymerizing the monomers in situ to form said composite materials. Further embodiments of the present invention pertain to methods of capturing C02 from an environment by associating the environment with one or more of the aforementioned composite materials.
    Type: Grant
    Filed: October 25, 2011
    Date of Patent: March 15, 2016
    Assignees: WILLIAM MARSH RICE UNIVERSITY, NALCO COMPANY
    Inventors: James M. Tour, Garry Chih-Chau Hwang, Jay R. Lomeda
  • Patent number: 9265851
    Abstract: The invention is directed towards methods and compositions for identifying the specific microorganisms present in a particular portion of a papermaking processes. The method involves obtaining and comparing a diversity index of a sample from the process. Because no system is completely free from biological infestation, utilizing information taken from the changes in the populations provides information useful in protecting the system from unwanted effects. Not only does the diversity index allow for the distinguishing between biological and non-biological events, it even allows for the prediction of problems without previously knowing that a particular organism will cause a particular problem.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: February 23, 2016
    Assignee: NALCO COMPANY
    Inventors: Laura E. Rice, Liliya Lund
  • Patent number: 9267082
    Abstract: The invention is directed towards a method of removing mercury bearing species from a hydrocarbon containing fluid. The method comprises the steps of: i) adding dithiocarbamate polymer to the fluid in an amount such that the number of mercury bonding sites on the polymer exceeds the amount of mercury atoms by at least 10% and ii) removing the mercury bearing dithiocarbamate polymer with a water/oil separation device. The invention relies upon an unexpected reversal in the solubility of dithiocarbamate polymer at very high concentrations. Because of the high solubility the polymer remains within the water phase of the hydrocarbon fluid and can be removed without the need for cumbersome precipitation methods and complicated solid liquid separation devices.
    Type: Grant
    Filed: August 20, 2013
    Date of Patent: February 23, 2016
    Assignee: NALCO COMPANY
    Inventors: Michael L. Braden, Samuel A. Lordo
  • Patent number: 9265259
    Abstract: The invention is directed to compositions and methods of their use as effective biocidal agents for water streams. The composition comprises a halogen source, halogen stabilizers containing a sulfur bearing species and ammonium salts/urea, and an alkali. The sulfur bearing species includes sulfamic acid or its salt equivalent. By having optimized mixing ratio of halogen to stabilizer and that of ammonium salts to sulfamic acid or sulfamate, a synergistic effect occurs which both increases the efficacy of the composition as a biocide and it avoids adverse impacts on other chemicals that are present in the water stream. Best of all the composition is easy to form and easy to introduce into a water stream of concern. Its introduction can be as simple as mixing two containers of reagent prior to introduction to the water process stream.
    Type: Grant
    Filed: November 4, 2011
    Date of Patent: February 23, 2016
    Assignee: NALCO COMPANY
    Inventors: Wen Li Tu, Laura E. Rice, Andrew J. Cooper, Elisa M. Luth, Yu-mei Lu, Jian Kun Shen
  • Patent number: 9266301
    Abstract: This invention is method of creping a paper web comprising a) applying to a rotating creping cylinder an adhesive composition having a pH of about 6.5 to about 8 and comprising one or more vinylamine/N-vinyl formamide polymers composed of about 10 to about 99 mole percent vinylamine monomer and about 90 to about 1 mole percent N-vinylformamide monomer; b) pressing the paper web against the creping cylinder to effect adhesion of the paper web to the creping cylinder; and c) dislodging the paper web from the creping cylinder with a doctor blade.
    Type: Grant
    Filed: October 22, 2012
    Date of Patent: February 23, 2016
    Assignee: NALCO COMPANY
    Inventors: Gary S. Furman, Mingli Wei, Winston Su, Christopher D. Kaley, David J. Castro, Vladimir Grigoriev
  • Publication number: 20160024395
    Abstract: A method of optimizing system parameters in a crude unit to reduce corrosion and corrosion byproduct deposition in the crude unit is disclosed and claimed. The method includes measuring or predicting properties associated with the system parameters and using an automated controller to analyze the properties to cause adjustments in the chemical program to optimize the system parameters. Adjusting the system parameters effectively controls corrosion in the crude unit by reducing the corrosiveness of a fluid in the process stream and/or by protecting the system from a potentially corrosive substance. System parameter sensing probes are arranged at one or more locations in the process stream to allow accurate monitoring of the system parameters in the crude unit.
    Type: Application
    Filed: October 5, 2015
    Publication date: January 28, 2016
    Applicant: NALCO COMPANY
    Inventors: Glenn L. Scattergood, Sam Ferguson
  • Patent number: 9242880
    Abstract: The invention provides a method of controlling biological fouling of water containing items. The method involves combining at least two reactants, a peroxygen source and an acyl group donor to form peracetic acid. Because the peracetic acid can be made in situ, the entire sum of its short lifespan can be used controlling biocidal fouling and storage and transport is simplified. The invention further facilitates the ease of controlling biocidal fouling by allowing the injection of the biocidal agent in liquid form, in a non-acidic environment, and without the need for any halogen. This allows the inventive biocide to be used with chemistries for which prior art biocides are inapplicable.
    Type: Grant
    Filed: December 28, 2010
    Date of Patent: January 26, 2016
    Assignee: Nalco Company
    Inventors: Amit Gupta, Charles J. Reedy, Barbara E. Moriarty, Jeffery M. Atkins