Patents Assigned to Nalco Company
  • Patent number: 9555420
    Abstract: A process of treating a gas stream containing mercury is disclosed.
    Type: Grant
    Filed: April 8, 2010
    Date of Patent: January 31, 2017
    Assignee: Nalco Company
    Inventors: Bruce A. Keiser, Nicholas S. Ergang, Richard Mimna
  • Patent number: 9550935
    Abstract: A method of inhibiting hydrates in a fluid comprising water and gas comprising adding to the fluid an effective hydrate-inhibiting amount of a composition comprising one or more copolymers of N-alkyl (alkyl)acrylamide monomers and one or more cationic monomers selected from acid and alkyl chloride quaternary salts of N,N-dialkylaminoalkyl (meth)acrylates and N,N-dialkylaminoalkyl (meth)acrylamides.
    Type: Grant
    Filed: December 24, 2014
    Date of Patent: January 24, 2017
    Assignee: Nalco Company
    Inventors: Peter G. Conrad, Erick J. Acosta, Kevin P. McNamee, Brian Bennett, Olga E. S. Lindeman, Joseph R. Carlise
  • Publication number: 20170009399
    Abstract: Methods of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength, and enhancing filler retention in a papermaking process are disclosed. The methods improve the efficiency of drainage aids, wet web strength aids, and/or wet strength aids by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives.
    Type: Application
    Filed: September 21, 2016
    Publication date: January 12, 2017
    Applicant: NALCO Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Stephen Ashton, Weiguo Cheng, Aleksandar Todorovic, Alan Smith
  • Patent number: 9534189
    Abstract: Hydraulic fluid and fire-resistant fluid compositions and methods of using the compositions are provided. In an embodiment, the present invention provides a method of utilizing fire-resistant fluid in hydraulic systems. For example, the method can comprise utilizing fire-resistant fluid in hydraulic systems of casters found in steel mills, in an environment where fire safety is of concern. The fire-resistant composition can comprise one or more glycerin by-products derived from a biodiesel manufacturing process. The fire-resistant composition can also comprise one or more glycerin by-products of transesterification reactions involving triglycerides. The fire-resistant fluid can be added to hydraulic systems as a solution.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: January 3, 2017
    Assignee: Nalco Company
    Inventors: Bo L. Tran, Joseph M. Hamnik, Stephen J. Blubaugh
  • Patent number: 9506202
    Abstract: The invention is directed towards methods, compositions, and apparatus for increasing the strength of paper made out of a furnish having a large proportion of OCC. The method involves the following steps: 1) Providing a paper furnish having a large amount of OCC in it, 2) adding strength promoter to the furnish prior to adding a strength agent to the furnish, 3) adding a strength agent to the furnish, and 4) making a paper product from the furnish. This method allows cheap OCC material to be used in a papermaking process without the quality problems that the anionic trash in OCC typically causes. Thus paper products having low costs and high quality can be produced.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: November 29, 2016
    Assignee: NALCO Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Weiguo Cheng
  • Patent number: 9505707
    Abstract: Disclosed and claimed is a composition and method of inhibiting the formation of hydrate agglomerates in a fluid comprising water, gas, and optionally liquid hydrocarbon. The composition comprises the following formula and the method comprises adding to the fluid an effective anti-agglomerant amount of any of the following formula and optionally salts thereof. R1, R2, and R3 are each independently CnH2n+1 or benzyl. R4 is C4-C20 alkyl or alkenyl. n is an integer from 0 to 10. X? is a counterion.
    Type: Grant
    Filed: December 15, 2011
    Date of Patent: November 29, 2016
    Assignee: NALCO Company
    Inventors: Peter A. Webber, Peter G. Conrad, Austen K. Flatt
  • Patent number: 9505988
    Abstract: The invention directed to a method of reducing the increase in viscosity and the drop in the heat transfer coefficient that commonly occurs with quenching media which is repeatedly circulated through a hot reaction vessel. The method comprises adding a preserving composition to the quenching media. The composition comprises: a) high temperature polymerization inhibitor, b) a tar dispersant, and c) a viscosity reducer. The method allows the quenching media to remain effective longer than would otherwise be the case. By doing so this prevents having to devote excessive resources for such problems as: controlling heat recovery, viscosity increases, product downgrades or having to operate equipment at temperatures beyond their optimum performance designs.
    Type: Grant
    Filed: October 19, 2011
    Date of Patent: November 29, 2016
    Assignee: NALCO Company
    Inventors: Maria Beata Manek, Meha H. Shah, Daniel K. Frye
  • Patent number: 9506201
    Abstract: The invention provides methods and compositions for softening paper. An inventive composition and method of its use softens paper products (like tissue paper) by de-bonding its cellulose fibers and by improving the smoothness of the resulting paper. The invention forms a surfactant-polymer complex that attaches de-bonding non-ionic surfactants to cellulose fibers that would otherwise not be retained by the cellulose fibers. This complex prevents the fibers from bonding with each other and makes the paper product smoother. Best of all, the composition is environmentally superior and is a non-toxic.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: November 29, 2016
    Assignee: Nalco Company
    Inventors: Gary S. Furman, Gillian Frette, Frank Koenig, Tobias Maurer
  • Patent number: 9487408
    Abstract: The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more particular silane based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: November 8, 2016
    Assignee: Nalco Company
    Inventors: Everett C. Phillips, Timothy La, Kailas B. Sawant
  • Patent number: 9487916
    Abstract: The invention provides a method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in a papermaking process The method improves the efficiency of drainage aids or wet web strength aids or wet strength aid by coating at least some of the filler particles with a material that prevents the filler materials form adhering to a those additives. The drainage additive or wet web strength additive or wet strength aid holds the cellulose fibers together tightly and is not wasted on the filler particles.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: November 8, 2016
    Assignee: NALCO Company
    Inventors: Yulin Zhao, Jun Li, Qing Long Rao, Stephen Ashton, Weiguo Cheng, Aleksandar Todorovic, Alan Smith
  • Patent number: 9458388
    Abstract: A method of correcting measurements of a chemical sensor used in an industrial facility. The method involves correcting for errors known to occur in the steady state and the dynamic state for specifically recognized situations. This method allows for correcting errors that occur due to deadtime, false zero measurements, and non-linear disturbances. The method combines automated measurement techniques and human know how to progressively learn and refine the accuracy of the corrections.
    Type: Grant
    Filed: July 25, 2012
    Date of Patent: October 4, 2016
    Assignee: Nalco Company
    Inventors: Jin Wang, Nigel P. Hilton, Glenn L. Scattergood, Sam Ferguson
  • Patent number: 9453798
    Abstract: The invention provides a method and apparatus for determining the amount of various materials in a liquid sample. Because the apparatus is particularly resilient it can be used repeatedly with very harsh liquid samples such as boot water from an oil refinery. The apparatus uses at least one volume and/or concentration independent optical analysis method to determine at least one of: the pH, amount of chloride, and/or amount of iron in the sample. The optical property can be colorimetric, fluorescent or both and result from adding dyes, complexing agents, turbidity inducing compounds, and other optically effecting reagents to the sample. Because the measurements are concentration and volume independent they can be done continuously, quickly, and avoid the inconvenient start and stop procedures in prior art measurement regimens.
    Type: Grant
    Filed: April 27, 2011
    Date of Patent: September 27, 2016
    Assignee: NALCO COMPANY
    Inventors: Rodney H. Banks, Steven R. Ciota, Sascha J. Welz
  • Patent number: 9446952
    Abstract: A process for generating aqueous chlorine dioxide solutions includes adding a solid phase alkali metal chlorite, a solid phase acid, and a solid phase oxidizing agent to an aqueous solution, wherein the solid phase acid ahs a pKa less than 4. Also disclosed are compositions for producing chlorine dioxide solutions.
    Type: Grant
    Filed: March 24, 2006
    Date of Patent: September 20, 2016
    Assignee: NALCO Company
    Inventor: Felice DiMascio
  • Patent number: 9447002
    Abstract: A method for retarding polymerization of vinyl monomers comprising adding a quinone methide to a liquid comprising the vinyl monomers is described.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: September 20, 2016
    Assignee: NALCO Company
    Inventor: Jonathan Masere
  • Patent number: 9416490
    Abstract: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a cross-linked glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a high stress environment. In addition, it is more soluble in the harsh condition than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.
    Type: Grant
    Filed: February 4, 2013
    Date of Patent: August 16, 2016
    Assignee: NALCO COMPANY
    Inventors: Prasad Y. Duggirala, Xiaojin Harry Li
  • Patent number: 9416020
    Abstract: The invention provides methods and compositions for inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes adding one or more GPS-surfactant based small molecules to the liquor fluid circuit. These scale inhibitors reduce DSP scale formation and thereby increase fluid throughput, increase the amount of time Bayer process equipment can be operational and reduce the need for expensive and dangerous acid washes of Bayer process equipment. As a result, the invention provides a significant reduction in the total cost of operating a Bayer process.
    Type: Grant
    Filed: January 9, 2014
    Date of Patent: August 16, 2016
    Assignee: Nalco Company
    Inventors: Carl Nicholas Urbani, Timothy La, John David Kildea
  • Patent number: 9409110
    Abstract: Disclosed and claimed is a method of removing contaminants from a process stream or stabilizing a system parameter in the process stream. The method includes providing a filtration system in communication with a controller, wherein the controller is operable to automatically initiate a flow from the process stream into the filtration system when the system parameter of the process stream is within above an upper threshold value and/or below a lower threshold value; and activating the filtration system, wherein the flow comprises a flow rate through the filtration system and the controller is operable to adjust the flow rate.
    Type: Grant
    Filed: July 14, 2011
    Date of Patent: August 9, 2016
    Assignee: NALCO COMPANY
    Inventors: Ana-Mariana Urmenyi, Amit Gupta, Chris D. Davies, Bert Simons
  • Patent number: 9404895
    Abstract: The invention embodies the application of different combinations of the monitoring and data processing aspects as a means to develop an early warning chatter alarming system. Configuring an early warning chatter alarming system can be as simple as using n? alarm settings to develop an alarming strategy from different trend conditions such as overall RMS, selected vibration frequencies, slope analysis, and wavelet analysis. A higher level of alarming is provided by using a time integrated approach to account for both intensity of the alarm variable and duration. Combining these different aspects with a predictive model incorporates process-operating conditions to enhance the alarming sensitivity for earlier detection and reduce false positives. Finally, combining the different alarming aspects with a rule-based decision making approach such as fuzzy logic allows alarming based on qualitative analysis of different data streams.
    Type: Grant
    Filed: October 20, 2011
    Date of Patent: August 2, 2016
    Assignee: Nalco Company
    Inventors: William A. Von Drasek, Gary S. Furman, Jr., Sammy Lee Archer
  • Publication number: 20160215449
    Abstract: The invention provides a method of improving the digestion of wood chips into pulp. The method involves: adding a cross-linked glycerol-based polymer additive to a solution used in the digestion process. This additive is unexpectedly effective at facilitating digestion. The branched and ether structure of the additive allows it to withstand the harsh nature of a high stress environment. In addition, it is more soluble in the harsh condition than other surfactants. The structure, resistance, and particular balance between hydrophobic and hydrophilic regions, causes the additive to increases the interaction between the wood chips and the digestion chemicals. This in turn reduces the costs, the amount of additive needed, and the amount of reject wood chunks that result from the digestion process.
    Type: Application
    Filed: February 4, 2013
    Publication date: July 28, 2016
    Applicant: NALCO COMPANY
    Inventors: Prasad Y. Duggirala, Xiaojin Harry Li
  • Patent number: 9388530
    Abstract: The invention provides methods and compositions for monitoring and controlling the thickness of coating on a creping cylinder is disclosed. The methodologies involve a coordinated scheme of apparatuses that function to monitor various aspects of a creping cylinder coating so that the thickness of the coating can be determined.
    Type: Grant
    Filed: February 18, 2014
    Date of Patent: July 12, 2016
    Assignee: NALCO COMPANY
    Inventors: William A. Von Drasek, Rodney H. Banks, Gary S. Furman