Patents by Inventor Jared Ira Leikam

Jared Ira Leikam 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: 20210101808
    Abstract: Methods and systems for treating tailings at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises (i) providing a tailings stream comprising bicarbonates and a pH less than 9.0, (ii) adding a coagulant comprising calcium hydroxide to the tailings stream to form a mixture having a pH of at least 11.5 and a soluble calcium level no more than 800 mg/L, and (iii) dewatering the mixture to produce a product having a solids content of at least 40% by weight. In some embodiments, the pH and soluble calcium level of the mixture cause chemical modification of clay materials of the mixture via pozzolanic reactions. In some embodiments, the undrained shear strength of the product increases over a period of time of at least two days.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Inventors: Nikolas Andrei Romaniuk, Jared Ira Leikam, Jesse Wayne Fox, Michael John Tate, Narain Hariharan
  • Publication number: 20210101807
    Abstract: Methods and systems for treating tailings at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises (i) providing a tailings stream comprising bicarbonates and a pH less than 9.0, (ii) adding a coagulant comprising calcium hydroxide to the tailings stream to form a mixture having a pH of at least 11.5 and a soluble calcium level no more than 800 mg/L, and (iii) dewatering the mixture to produce a product having a solids content of at least 40% by weight. In some embodiments, the pH and soluble calcium level of the mixture cause chemical modification of clay materials of the mixture via pozzolanic reactions. In some embodiments, the undrained shear strength of the product increases over a period of time of at least two days.
    Type: Application
    Filed: December 16, 2020
    Publication date: April 8, 2021
    Inventors: Jared Ira Leikam, Nikolas Andrei Romaniuk, Jesse Wayne Fox, Michael John Tate, Narain Hariharan
  • Publication number: 20210069640
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 less than 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Application
    Filed: November 23, 2020
    Publication date: March 11, 2021
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Publication number: 20210061668
    Abstract: Methods and systems for producing calcium carbonate from calcium hydroxide and carbon dioxide are disclosed herein. In some embodiments, a method for producing calcium carbonate comprises (i) providing a first plurality of particles comprising solid-state calcium hydroxide, and (ii) introducing a gas stream comprising carbon dioxide to the first plurality of particles to produce a second plurality of particles comprising calcium carbonate. Individual ones of the first plurality of particles can include a specific surface area of at least 20 m2/g and a free moisture content of from 2% to 20%. The second plurality of particles comprising calcium carbonate are not produced via precipitation.
    Type: Application
    Filed: November 11, 2020
    Publication date: March 4, 2021
    Inventors: Brent LaMar, Jared Ira Leikam, Joseph Lewis
  • Patent number: 10894730
    Abstract: Methods and systems for treating tailings at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises (i) providing a tailings stream comprising bicarbonates and a pH less than 9.0, (ii) adding a coagulant comprising calcium hydroxide to the tailings stream to form a mixture having a pH of at least 11.5 and a soluble calcium level no more than 800 mg/L, and (iii) dewatering the mixture to produce a product having a solids content of at least 40% by weight. In some embodiments, the pH and soluble calcium level of the mixture cause chemical modification of clay materials of the mixture via pozzolanic reactions. In some embodiments, the undrained shear strength of the product increases over a period of time of at least two days.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: January 19, 2021
    Assignee: GRAYMONT (PA) INC.
    Inventors: Jared Ira Leikam, Nikolas Andrei Romaniuk, Jesse Wayne Fox, Michael John Tate, Narain Hariharan
  • Patent number: 10874982
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Grant
    Filed: February 25, 2020
    Date of Patent: December 29, 2020
    Assignee: GRAYMONT (PA) INC.
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Patent number: 10870585
    Abstract: Methods and systems for producing calcium carbonate from calcium hydroxide and carbon dioxide are disclosed herein. In some embodiments, a method for producing calcium carbonate comprises (i) providing a first plurality of particles comprising solid-state calcium hydroxide, and (ii) introducing a gas stream comprising carbon dioxide to the first plurality of particles to produce a second plurality of particles comprising calcium carbonate. Individual ones of the first plurality of particles can include a specific surface area of at least 20 m2/g and a free moisture content of from 2% to 20%. The second plurality of particles comprising calcium carbonate are not produced via precipitation.
    Type: Grant
    Filed: September 17, 2019
    Date of Patent: December 22, 2020
    Assignee: GRAYMONT (PA) INC.
    Inventors: Brent LaMar, Jared Ira Leikam, Joseph Lewis
  • Publication number: 20200239349
    Abstract: Methods and systems for treating oil sands tailings streams at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises providing a tailings stream including 10-55% solids by total weight, increasing the pH of the tailings stream by combining the tailings stream with lime to produce a lime-tailings mixture having a pH of at least 11.0, and dewatering the lime-tailings mixture to produce a first stream having 10% or less solids by total weight and a second stream having 50% or more solids by total weight. The first stream can correspond to a release water stream, and the second stream can correspond to a cake. The lime slurry can include about 10% lime by total weight, and can comprise lime hydrate, quicklime, or a combination thereof. Dewatering the lime-tailings mixture can include routing the lime-tailings mixture to a centrifuge unit and/or a pressure or vacuum filtration unit.
    Type: Application
    Filed: April 3, 2020
    Publication date: July 30, 2020
    Inventors: Michael John Tate, Jared Ira Leikam, Jesse Wayne Fox, Nikolas Andrei Romaniuk
  • Publication number: 20200188846
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Application
    Filed: February 25, 2020
    Publication date: June 18, 2020
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Patent number: 10647606
    Abstract: Methods and systems for treating oil sands tailings streams at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises providing a tailings stream including 10-55% solids by total weight, increasing the pH of the tailings stream by combining the tailings stream with lime to produce a lime-tailings mixture having a pH of at least 11.0, and dewatering the lime-tailings mixture to produce a first stream having 10% or less solids by total weight and a second stream having 50% or more solids by total weight. The first stream can correspond to a release water stream, and the second stream can correspond to a cake. The lime slurry can include about 10% lime by total weight, and can comprise lime hydrate, quicklime, or a combination thereof. Dewatering the lime-tailings mixture can include routing the lime-tailings mixture to a centrifuge unit and/or a pressure or vacuum filtration unit.
    Type: Grant
    Filed: August 18, 2017
    Date of Patent: May 12, 2020
    Assignee: Graymont Western Canada Inc.
    Inventors: Michael John Tate, Jared Ira Leikam, Jesse Wayne Fox, Nikolas Andrei Romaniuk
  • Patent number: 10610825
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Grant
    Filed: June 20, 2019
    Date of Patent: April 7, 2020
    Assignee: Graymont (PA) Inc.
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Publication number: 20200087158
    Abstract: Methods and systems for producing calcium carbonate from calcium hydroxide and carbon dioxide are disclosed herein. In some embodiments, a method for producing calcium carbonate comprises (i) providing a first plurality of particles comprising solid-state calcium hydroxide, and (ii) introducing a gas stream comprising carbon dioxide to the first plurality of particles to produce a second plurality of particles comprising calcium carbonate. Individual ones of the first plurality of particles can include a specific surface area of at least 20 m2/g and a free moisture content of from 2% to 20%. The second plurality of particles comprising calcium carbonate are not produced via precipitation.
    Type: Application
    Filed: September 17, 2019
    Publication date: March 19, 2020
    Inventors: Brent LaMar, Jared Ira Leikam, Joseph Lewis
  • Publication number: 20200079664
    Abstract: Methods and systems for treating tailings at an elevated pH using lime are disclosed herein. In some embodiments, the method comprises (i) providing a tailings stream comprising bicarbonates and a pH less than 9.0, (ii) adding a coagulant comprising calcium hydroxide to the tailings stream to form a mixture having a pH of at least 11.5 and a soluble calcium level no more than 800 mg/L, and (iii) dewatering the mixture to produce a product having a solids content of at least 40% by weight. In some embodiments, the pH and soluble calcium level of the mixture cause chemical modification of clay materials of the mixture via pozzolanic reactions. In some embodiments, the undrained shear strength of the product increases over a period of time of at least two days.
    Type: Application
    Filed: September 10, 2019
    Publication date: March 12, 2020
    Inventors: Jared Ira Leikam, Nikolas Andrei Romaniuk, Jesse Wayne Fox, Michael John Tate, Narain Hariharan
  • Publication number: 20190351368
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Application
    Filed: June 20, 2019
    Publication date: November 21, 2019
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Patent number: 10369518
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: August 6, 2019
    Assignee: Graymont (PA) Inc.
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng
  • Publication number: 20190135663
    Abstract: Methods and systems for treating oil sands tailings streams using multiple dosages of lime are disclosed herein. In some embodiments, the method comprises providing a tailings stream including 3-40% solids by total weight, combining the tailings stream with a first dosage of lime to produce a first mixture having a pH of less than 12.0, and then combining the first mixture with a polymer to produce a second mixture. In some embodiments, the method can further include combining the second mixture with a second dosage of lime to produce a third mixture having a pH greater than 12.0, and dewatering the third mixture in a centrifuge unit and/or a pressure filtration unit to produce a product stream having 55% or more solids by weight.
    Type: Application
    Filed: November 8, 2018
    Publication date: May 9, 2019
    Inventors: Michael John Tate, Jared Ira Leikam, Jesse Wayne Fox, Nikolas Andrei Romaniuk
  • Publication number: 20180264403
    Abstract: Calcium hydroxide-containing compositions can be manufactured by slaking quicklime, and subsequently drying and milling the slaked product. The resulting calcium hydroxide-containing composition can have a size, steepness, pore volume, and/or other features that render the compositions suitable for treatment of exhaust gases and/or removal of contaminants. In some embodiments, the calcium hydroxide-containing compositions can include a D10 from about 0.5 microns to about 4 microns, a D90 less than about 30 microns, and a ratio of D90 to D10 from about 8 to about 20, wherein individual particles include a surface area greater than or equal to about 25 m2/g.
    Type: Application
    Filed: March 15, 2018
    Publication date: September 20, 2018
    Inventors: Michael John Tate, Jared Ira Leikam, Michael Roach, Joseph Lewis, Shiaw Tseng