Patents Assigned to Nalco Company
  • Patent number: 8585992
    Abstract: The invention is directed towards methods and compositions for treating slurry to better dewater alumina trihydrate precipitated from the Bayer process. The method comprises using a product comprising the combination of at least two surfactants together with an optional coupling agent to treat the alkaline slurry with certain amount of alumina trihydrate present. Synergistic effects between binary combinations of nonionic and anionic surfactants result in more efficient dewatering aids for alumina trihydrate slurry when combinations of such surfactants are applied. A coupling agent may be used in formulations to reduce viscosity of such surfactant combinations, allowing the practical application of such products.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: November 19, 2013
    Assignee: Nalco Company
    Inventors: Paul Qi Wang, Steven Qun Dong
  • Patent number: 8561458
    Abstract: The current invention relates to a bracket for use in conjunction with test coupons to allow for the consistent and long term monitoring of corrosive elements in a facility. The invention is able to have multiple coupons attached to a single bracket allowing for the testing various corrosive elements. Additionally the coupons can be placed at varying angles and locations to allow for a more complete analysis of the environments.
    Type: Grant
    Filed: June 19, 2008
    Date of Patent: October 22, 2013
    Assignee: Nalco Company
    Inventors: Patrick J. Macuch, Paul B. Desch
  • Patent number: 8551435
    Abstract: This invention provides novel processes utilizing compositions comprising substituted polyamines as acid gas scrubbing solutions and methods of using the compositions in an industrial system. The invention relates to the use of such polyamine compounds in industrial processes to remove acidic contaminants from natural and industrial fluid streams, such as natural gas, combustion gas, natural gas, synthesis gas, biogas, and other industrial fluid streams. The compositions and methods of the invention are useful for removal, absorption, or sequestration of acidic contaminants and sulfide contaminants including CO2, H2S, RSH, CS2, COS, and SO2.
    Type: Grant
    Filed: February 15, 2012
    Date of Patent: October 8, 2013
    Assignee: Nalco Company
    Inventors: Alan M. Blair, Keith N. Garside, William J. Andrews, Kailas B. Sawant
  • Patent number: 8551904
    Abstract: A process for making a ceramic catalyst material includes mixing a catalyst precursor material with a mineral particulate to form a mixture; adding a binder, silicon carbide, and a parting agent to the mixture to form unfired spheroids; and heating the unfired spheroids at a temperature effective to oxidize the silicon carbide and the catalyst precursor material to form the ceramic catalyst material. In another embodiment, the process includes the addition of a catalyst metal oxide salt to an aluminosilicate hydrogel aggregate mixture. Once the mixture sets, the set mixture is heated to a temperature to effective to produce a high surface area ceramic catalyst material.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: October 8, 2013
    Assignee: Nalco Company
    Inventor: Felice DiMascio
  • Patent number: 8551925
    Abstract: Disclosed are imidazoline-based foamers and corrosion inhibitors for treatment of oil and gas wells for enhanced production. The invention also includes methods of foaming a fluid by introducing the disclosed foamers to oil and gas wells.
    Type: Grant
    Filed: November 15, 2007
    Date of Patent: October 8, 2013
    Assignee: Nalco Company
    Inventors: Duy T. Nguyen, G. Richard Meyer
  • Patent number: 8545776
    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: September 25, 2009
    Date of Patent: October 1, 2013
    Assignee: Nalco Company
    Inventors: Timothy La, Ji Cui, John D. Kildea, David H. Slinkman
  • Patent number: 8541622
    Abstract: This invention provides novel compositions comprising substituted polyamines as acid gas scrubbing solutions and methods of using the compositions in an industrial system. The invention relates to the use of such polyamine compounds in industrial processes to remove acidic contaminants from natural and industrial fluid streams, such as natural gas, combustion gas, natural gas, synthesis gas, biogas, and other industrial fluid streams. The compositions and methods of the invention are useful for removal, absorption, or sequestration of acidic contaminants and sulfide contaminants including CO2, H2S, RSH, CS2, COS, and SO2.
    Type: Grant
    Filed: June 30, 2009
    Date of Patent: September 24, 2013
    Assignee: Nalco Company
    Inventors: Alan M. Blair, Keith N. Garside, William J. Andrews, Kailas B. Sawant
  • Patent number: 8530597
    Abstract: A structured water soluble polymer produced by polymerization of amine-containing monomers or pre-formed polymers is described. Various structured polymers are prepared and characterized. The structured polymers are particularly valued in the papermaking industry.
    Type: Grant
    Filed: August 21, 2009
    Date of Patent: September 10, 2013
    Assignee: Nalco Company
    Inventors: Pious V. Kurian, Peter E. Reed, Michael R. St. John, Winston Su, Jeffrey R. Cramm
  • Patent number: 8524074
    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. As a result, the invention allows mercury contaminated crude oil to be easily rid of its mercury with easy to use equipment already present in a typical oil refinery.
    Type: Grant
    Filed: August 17, 2011
    Date of Patent: September 3, 2013
    Assignee: Nalco Company
    Inventors: Michael L. Braden, Samuel A. Lordo
  • Patent number: 8518262
    Abstract: A method of integrating individual water treatment assemblies into a seamless water treatment control system. A Reverse Osmosis assembly contains a controller wherein all other pretreatment and post-treatment assemblies are electrical coupled thereto. The controller is preprogrammed for use in recognizing the coupling of the pretreatment and/or post treatment assemblies wherein and for receiving all control commands for operation thereof. The controller employs cells that allows and installer to interconnect assemblies by coupling low voltage control signal wiring having predefined inputs, set up as PnP, or by use of a personal wireless network.
    Type: Grant
    Filed: March 16, 2007
    Date of Patent: August 27, 2013
    Assignee: Nalco Company
    Inventors: Scott Watkins, Raymond Perdue
  • Patent number: 8518214
    Abstract: 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: July 18, 2011
    Date of Patent: August 27, 2013
    Assignee: Nalco Company
    Inventors: Gary S. Furman, Jr., Gillian Frette, Frank Koenig, Tobias Maurer
  • Patent number: 8501010
    Abstract: Diallcoxysilane and monoalkoxysilane functionalized polymers were applied as scale control agents in Bayer process. The polymer inhibitors reduced the quantity of aluminum silicate scale formed in spent liquor while significantly changed the morphology of the scale. Also a method is provided for reducing aluminum silicate scale of Bayer process by adding the dialkoxysilane and monoalkoxysilane functionalized polymer into the Bayer liquor stream.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: August 6, 2013
    Assignee: Nalco Company
    Inventor: Ji Cui
  • Patent number: 8500957
    Abstract: A method for monitoring with enhanced sensitivity of the deposition of one or more organic materials dispersed in an aqueous medium in a papermaking process which includes measuring the rate of deposition of the organic materials from the aqueous medium onto a quartz crystal microbalance having a top side contacting with the aqueous medium coated with a layer containing a material with surface energy in the range from about 34 to about 49 dynes/cm2, and a second, bottom side isolated from the aqueous medium is disclosed. Additionally, a method for measuring the effectiveness of an inhibitor that decreases the deposition of the organic materials in a papermaking process is also disclosed.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: August 6, 2013
    Assignee: Nalco Company
    Inventors: Sergey M. Shevchenko, Michael J. Murcia
  • Publication number: 20130189529
    Abstract: The invention provides a method of inhibiting the accumulation of DSP scale in the liquor circuit of Bayer process equipment. The method includes pre-treating surfaces of the process equipment with one or more particular silane based small molecules. 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: Application
    Filed: March 8, 2013
    Publication date: July 25, 2013
    Applicant: NALCO COMPANY
    Inventor: Nalco Company
  • Patent number: 8491753
    Abstract: A composition and method for improving retention and drainage in a papermaking process is disclosed. An unexpected synergistic effect has been observed when certain amounts of a promoter are used in conjunction with a microparticle. Optionally, a flocculent is also used to further improve the observed synergism. The microparticle includes an inorganic anionic or cationic siliceous material. The promoter includes a modified diallyl-N,N-disubstituted ammonium halide polymer. The flocculant includes one or more high molecular weight, water-soluble cationic, anionic, nonionic, zwitterionic, or amphoteric polymers.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: July 23, 2013
    Assignee: Nalco Company
    Inventors: Jane B. Wong Shing, Javier S. Cardoso
  • Publication number: 20130180923
    Abstract: Disclosed herein are methods for controlling mercury emissions, and more particularly, to methods for controlling mercury re-emissions from a wet flue gas desulfurizer used in a combustion process.
    Type: Application
    Filed: October 22, 2012
    Publication date: July 18, 2013
    Applicant: Nalco Company
    Inventor: Nalco Company
  • Patent number: 8480856
    Abstract: An apparatus for and method of monitoring and optionally controlling the addition of one or more surface additives to a papermaking process via fluorometric means is disclosed.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: July 9, 2013
    Assignee: Nalco Company
    Inventors: Rodney H. Banks, Zhiyi Zhang, James L. Thomas
  • Publication number: 20130161265
    Abstract: Disclosed are systems and methods for monitoring and 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: Application
    Filed: February 21, 2013
    Publication date: June 27, 2013
    Applicant: NALCO COMPANY
    Inventor: NALCO COMPANY
  • Publication number: 20130166608
    Abstract: Methods for chemical management, observing the effectiveness of an industrial facility, or of organizing the assets of a business organization. The method is computerized and may involve receiving specification data for pieces of equipment and organizing the equipment into data structures of templates. The templates may be organized in a hierarchical structure where the lowest levels correspond to templates for a single piece of equipment and higher levels correspond to categories of pieces of equipment.
    Type: Application
    Filed: February 11, 2013
    Publication date: June 27, 2013
    Applicant: NALCO COMPANY
    Inventor: Nalco Company
  • Patent number: 8470238
    Abstract: Compositions and methods of using such compositions for reducing copper ion discharge from aqueous systems is disclosed and claimed. The composition includes a synergistic combination of at least two different benzotriazoles or salts thereof that effectively provides an erosion-resistant barrier on copper-containing surfaces of industrial systems.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: June 25, 2013
    Assignee: Nalco Company
    Inventors: Kaveh Sotoudeh, Michael A. Kamrath, Jasbir S. Gill