Patents by Inventor Kirill N. Bakeev

Kirill N. Bakeev has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20210301371
    Abstract: This disclosure provides a method of improving gold recovery in a cyanide leaching circuit comprising a gold ore slurry. The method includes the step of providing a gold recovery additive chosen from polyacrylic acid, copolymers of acrylic acid and a sulfonated co-monomer, and combinations thereof, wherein the additive has a weight average molecular weight of from about 500 to about 10,000 g/mol. The method also includes the step of combining the gold recovery additive with the gold ore slurry in the cyanide leaching circuit, wherein the gold recovery additive is present in an amount of from about 10 to about 1000 g per ton of dry gold ore to improve the recovery of gold from the gold ore slurry.
    Type: Application
    Filed: March 30, 2021
    Publication date: September 30, 2021
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventor: Kirill N. Bakeev
  • Publication number: 20210123117
    Abstract: Formation of CaSO4 and Fe2O3 containing deposits is reduced in a pressure oxidation autoclave and/or adjacent circuits during pressure oxidation of gold-containing ore. The gold-containing ore is combined with water to create an aqueous slurry that is heated and introduced into the autoclave. The method includes providing a scale inhibitor that is free of an organic polymer and includes an inorganic phosphate according to formula (I), (XPO3)m, wherein X is Na, K, H, or combinations thereof, and m is at least about 6, an inorganic phosphate according to formula (II), Yn+2PnO3n+1, wherein Y is Na, K, H, an organic phosphonate; or combinations thereof, and n is at least about 6. The method includes the step of combining the scale inhibitor and at least one of the gold-containing ore, the water, and the aqueous slurry to reduce scale.
    Type: Application
    Filed: October 29, 2019
    Publication date: April 29, 2021
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Kirill N. Bakeev, Andrew M. DiMaio
  • Publication number: 20210002826
    Abstract: Scale build-up on metal surfaces of a black liquor evaporator is prevented or mitigated by treating the black liquor with a deposit inhibiting concentration of a water-soluble polymer containing a polycarboxylate chain and a 3-mercaptopropionic acid end group.
    Type: Application
    Filed: June 30, 2020
    Publication date: January 7, 2021
    Applicant: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Daniel Joseph Nicholson, Kirill N. Bakeev
  • Patent number: 10759662
    Abstract: A method for reducing formation of scale in phosphoric acid production is provided herein. Phosphate-containing ore is combined with an acid to form an acidic slurry and the acidic slurry is processed to form an acidic stream. The method includes providing a scale inhibitor including an inorganic phosphate. The method further includes combining the scale inhibitor and at least one of the phosphate-containing ore, the acidic slurry, and the acidic stream, to reduce the formation of scale. A system for phosphoric acid production exhibiting a reduced formation of scale is also provided herein. The system includes a substrate having a surface in contact with at least one of the phosphate-containing ore, the acidic slurry formed from the phosphate-containing ore and the acid, and the acidic stream formed from the acidic slurry. The system including the scale inhibitor exhibits a reduced formation of scale on the surface.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: September 1, 2020
    Inventors: Kirill N. Bakeev, Andrew M. DiMaio, Anthony M. Shepherd
  • Publication number: 20190276314
    Abstract: A method for reducing formation of scale in phosphoric acid production is provided herein. Phosphate-containing ore is combined with an acid to form an acidic slurry and the acidic slurry is processed to form an acidic stream. The method includes providing a scale inhibitor including an inorganic phosphate. The method further includes combining the scale inhibitor and at least one of the phosphate-containing ore, the acidic slurry, and the acidic stream, to reduce the formation of scale. A system for phosphoric acid production exhibiting a reduced formation of scale is also provided herein. The system includes a substrate having a surface in contact with at least one of the phosphate-containing ore, the acidic slurry formed from the phosphate-containing ore and the acid, and the acidic stream formed from the acidic slurry. The system including the scale inhibitor exhibits a reduced formation of scale on the surface.
    Type: Application
    Filed: March 12, 2018
    Publication date: September 12, 2019
    Inventors: Kirill N. Bakeev, Andrew M. DiMaio, Anthony M. Shepherd
  • Patent number: 10399087
    Abstract: A process for enhancing mining processes and in particular to the combination of anionic grinding aids with cationic flocculating agents, an anionic flocculant containing sulphonated and/or carboxylated groups, a terpolymer and combinations thereof at the flocculating stage in mineral ore processing applications, thereby enhancing the effectiveness of mining processes particularly in the grinding and flocculating of the mineral ore slurry.
    Type: Grant
    Filed: September 2, 2015
    Date of Patent: September 3, 2019
    Assignee: SOLENIS TECHNOLOGIES, L.P.
    Inventors: Kirill N Bakeev, Andrew M DiMaio
  • Patent number: 9719008
    Abstract: The current technology relates to mining processes and compositions which inhibit the growth of complex scale. More specifically it relates to a process for preventing/inhibiting and/or controlling gypsum scale in aqueous mineral ore slurries, and for inhibiting scale in relatively high solids content environments in industrial mining operations.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: August 1, 2017
    Assignee: Solenis Technologies, L.P.
    Inventors: Kirill N Bakeev, Andrew M DiMaio
  • Publication number: 20160059152
    Abstract: A process for enhancing mining processes and in particular to the combination of anionic grinding aids with cationic flocculating agents, an anionic flocculant containing sulphonated and/or carboxylated groups, a terpolymer and combinations thereof at the flocculating stage in mineral ore processing applications, thereby enhancing the effectiveness of mining processes particularly in the grinding and flocculating of the mineral ore slurry.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Kirill N. Bakeev, Andrew M. DiMaio
  • Publication number: 20150105303
    Abstract: The current technology relates to mining processes and compositions which inhibit the growth of complex scale. More specifically it relates to a process for preventing/inhibiting and/or controlling gypsum scale in aqueous mineral ore slurries, and for inhibiting scale in relatively high solids content environments in industrial mining operations.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 16, 2015
    Inventors: Kirill N. Bakeev, Andrew M. DiMaio
  • Patent number: 8748542
    Abstract: A synthetic polymer has a water-soluble or water-swellable polyurethane backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
    Type: Grant
    Filed: June 18, 2009
    Date of Patent: June 10, 2014
    Assignee: Hercules Incorporated
    Inventors: Kirill N. Bakeev, De-Kai Loo, Angie H. Ma, Tuyen T. Nguyen, Jeffrey K. Politis
  • Patent number: 8686070
    Abstract: A joint compound with improved crack resistance is formed by combining water, a filler such as calcium carbonate, a latex emulsion binder, a thickening system such as methylhydroxyethyl cellulose, and nanocrystalline cellulose. The nanocrystalline cellulose is provided in an amount effective to reduce the crack formation during drying.
    Type: Grant
    Filed: February 19, 2013
    Date of Patent: April 1, 2014
    Assignee: Hercules Incorporated
    Inventors: Kirill N. Bakeev, Thomas J. Podlas
  • Publication number: 20140037816
    Abstract: Aqueous multiphase compositions are stabilized using a blend of cellulose ether and nanocrystalline cellulose. The multiphase compositions can include particulates dispersed in water, oil in water emulsions, foams, and combinations of these systems. The blend can be used to stabilize aqueous paint systems, personal care products such as shampoos and detergents formed as oil in water emulsions, and foaming products such as detergents, shampoos, other personal care products and edible compositions such as whip cream substitutes. Further, this blend can reduce or eliminate the need for surfactants in many of these multiphase compositions.
    Type: Application
    Filed: July 26, 2013
    Publication date: February 6, 2014
    Applicant: HERCULES INCORPORATED
    Inventors: Kirill N. Bakeev, Brian John Huebner, Gijsbert Kroon, Tuttu Maria Nuutinen
  • Patent number: 8430957
    Abstract: Hydroxyethylcellulose with a low molar substitution and which is uniformly substituted is useful in cement-based systems, including mortars. The cement-based system exhibits long pot life, as well as very high water retention capability at hot temperature, as well as better paste stability and optimized setting behavior for hot as well as cold temperature compared to typical, cement-based systems with commercial cellulose ether compounds. Less hydrophilic cellulose ethers such as methylhydroxyethylcellulose can be added as a second cellulose ether.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: April 30, 2013
    Assignee: Hercules Incorporated
    Inventors: Wilfried Adolf Hohn, Kirill N. Bakeev, John Kenneth Bard, Michael Dittel, Teng-Shau Young
  • Publication number: 20120312195
    Abstract: Hydroxyethylcellulose with a low molar substitution and which is uniformly substituted is useful in cement-based systems, including mortars. The cement-based system exhibits long pot life, as well as very high water retention capability at hot temperature, as well as better paste stability and optimized setting behavior for hot as well as cold temperature compared to typical, cement-based systems with commercial cellulose ether compounds. Less hydrophilic cellulose ethers such as methylhydroxyethylcellulose can be added as a second cellulose ether.
    Type: Application
    Filed: May 31, 2012
    Publication date: December 13, 2012
    Inventors: Wilfried Adolf Hohn, Kirill N. Bakeev, John Kenneth Bard, Michael Dittel, Teng-Shau Young
  • Publication number: 20100324177
    Abstract: A synthetic polymer has a water-soluble or water-swellable polyethyleneglycol backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
    Type: Application
    Filed: June 18, 2009
    Publication date: December 23, 2010
    Inventors: Kirill N. BAKEEV, De-Kai Loo, Angie H. Ma, Tuyen T. Nguyen, Jeffrey K. Politis
  • Publication number: 20090253832
    Abstract: A synthetic polymer has a water-soluble or water-swellable polyurethane backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
    Type: Application
    Filed: June 18, 2009
    Publication date: October 8, 2009
    Inventors: Kirill N. BAKEEV, De-Kai Loo, Angie H. Ma, Tuyen T. Nguyen, Jeffrey K. Politis
  • Patent number: 7550542
    Abstract: A synthetic polymer has a water-soluble or water-swellable polymer backbone and terminal groups and/or intermediate groups of blocks of hydrophobes of alkyl- or aryl compounds containing a polymerizable cyclic monomer or a polymerizable double bond (or alkene) group or derivatives thereof. The blocks of hydrophobes are composed of two or more units of the same or different hydrophobes. These synthetic polymers are used as rheology modifiers, especially in latex paints.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: June 23, 2009
    Assignee: Hercules Incorporated
    Inventors: Kirill N. Bakeev, De-Kai Loo, Angie H. Ma, Tuyen T. Nguyen, Jeffrey K. Politis
  • Patent number: 7531591
    Abstract: An aqueous dispersion includes an associative thickener based on a hydrophobically modified poly(acetal- or ketal-polyether) (HM-PAPE) and at least one viscosity reducing agent selected from ethoxylated alcohols, ethoxylated acetyleneic diols, phosphate esters, dialkyl sulfosuccinates, and mixtures thereof. This aqueous dispersion improves the incorporation of the HM-PAPEs into aqueous based protective coatings. This dispersion also improves water-borne coating compositions that optionally contain latex.
    Type: Grant
    Filed: November 8, 2005
    Date of Patent: May 12, 2009
    Assignee: Hercules Incorporated
    Inventors: Kirill N. Bakeev, James G. Binder, Theo Klootwijk, Dirk Kruythoff, Betty Maagdenberg-Roels, Tuyen T. Nguyen, Jeffrey K. Politis, Willimlen G. Salomons
  • Publication number: 20020166995
    Abstract: A method of enhancing the efficacy of a polymeric wax inhibitor for an oil which comprises applying said inhibitor in an aliphatic glycol ether solvent.
    Type: Application
    Filed: March 7, 2001
    Publication date: November 14, 2002
    Applicant: ISP INVESTMENTS INC.
    Inventors: Alison M. Robinson, Jonathan R. Stromberg, Michael J. Jurek, Kirill N. Bakeev
  • Patent number: 6451891
    Abstract: A composition is provided herein for preventing or retarding the formation of gas hydrates or for reducing the tendency of gas hydrates to agglomerate, during the transport of a fluid comprising water and a hydrocarbon, through a conduit. The composition is a homopolymer of an N-alkyl(meth)acrylamide, N,N-dialkyl(meth)acrylamide or copolymers thereof with N-vinyl-N-methylacetamide, in a defined solvent, which homopolymers and copolymers are made and applied in the defined solvent, which, most preferably, is a low molecular weight glycol ether such as 2-butoxyethanol.
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: September 17, 2002
    Assignee: ISP Investments Inc.
    Inventors: Vu Thieu, Kirill N. Bakeev, Jenn S. Shih