Patents Assigned to Unimin Corporation
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Patent number: 9446377Abstract: A continuous reactor vessel for a rotary reactor having a first disk and a second disk separating three zones wherein the first disk includes a material feed opening spaced from its peripheral edge by an inlet peripheral spacing and configured to receive a material inlet tube, the second disk including an axial extension spaced from the second peripheral edge having at least one axially extending side wall and an end cap with at least one reaction zone discharge opening in the extension. The at least one opening allowing for a continuous and controlled reactor discharge rate of the associated granular product from the reaction zone into the discharge zone, the discharge opening being spaced from the second peripheral edge by an outlet peripheral spacing such that the peripheral spacings define a controlled depth of a dead bed accumulation of the associated granular product in the reaction zone.Type: GrantFiled: October 25, 2013Date of Patent: September 20, 2016Assignee: Unimin CorporationInventors: Michael McKinney, Shane McMahan, Cameron McQueen
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Patent number: 9266115Abstract: An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or “engineered” particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size “engineered” powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.Type: GrantFiled: June 24, 2014Date of Patent: February 23, 2016Assignee: UNIMIN CORPORATIONInventors: David D Kragten, Christy Karr, Scott Van Remortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Patent number: 9085671Abstract: A simulated wood product such as decking, fencing and architectural trim of the type heretofore made from a plastic with a natural wood powder as filler, wherein at least most, if not all, of the wood powder is replaced by a powder formed from a hard naturally occurring mineral, such as nepheline syenite or feldspar.Type: GrantFiled: March 18, 2013Date of Patent: July 21, 2015Assignee: UNIMIN CORPORATIONInventor: Scott Van Remortel
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Patent number: 9034096Abstract: An ultra-fine nepheline syenite powder produced from a pre-processed nepheline syenite powder feedstock. The powder having a “controlled” maximum grain size D95 or D99 of less than about 20 microns and a “controlled” minimum grain size D5 in the range of 2-8 microns with a particle size spread D5-D95 of less than about 12 microns.Type: GrantFiled: June 27, 2008Date of Patent: May 19, 2015Assignee: Unimin CorporationInventors: Scott VanRemortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Patent number: 8864900Abstract: A useable particulate nepheline syenite having a grain size to provide an Einlehner Abrasive Value of less than about 100 is described. The particulate nepheline syenite is generally free from agglomeration and moisture free. At least 99% of the nepheline syenite particles have a size less than 10 microns. In practice, the nepheline syenite grain size is less than about 5 microns and the distribution profile of the particulate system is generally 4-5 microns.Type: GrantFiled: November 17, 2010Date of Patent: October 21, 2014Assignee: Unimin CorporationInventors: Jerry William Janik, Scott Van Remortel
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Patent number: 8858699Abstract: Nepheline syenite powder with a controlled particle size where 99.9% of the particles are less than 6 microns, which powder has a moisture content of less than 0.8% and an Einlehner Abrasive Value of less than 100 and products using this fine grain ultra fine nepheline syenite powder.Type: GrantFiled: May 11, 2007Date of Patent: October 14, 2014Assignee: Unimin CorporationInventors: Scott Van Remortel, Frank Cangelosi, Jerry William Janik
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Patent number: 8795427Abstract: An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or “engineered” particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size “engineered” powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.Type: GrantFiled: March 15, 2012Date of Patent: August 5, 2014Assignee: Unimin CorporationInventors: David D. Kragten, Christy Karr, Scott Van Remortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Publication number: 20130253098Abstract: A simulated wood product such as decking, fencing and architectural trim of the type heretofore made from a plastic with a natural wood powder as filler, wherein at least most, if not all, of the wood powder is replaced by a powder formed from a hard naturally occurring mineral, such as nepheline syenite or feldspar.Type: ApplicationFiled: March 18, 2013Publication date: September 26, 2013Applicant: UNIMIN CORPORATIONInventor: Scott Van Remortel
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Patent number: 8464969Abstract: A method of making frac sand having a selected grade from a naturally occurring, mined sand having a SiO2 content of at least about 80 percent and having a particle size range where the maximum particle size is less than about 8.Type: GrantFiled: August 3, 2011Date of Patent: June 18, 2013Assignee: Unimin CorporationInventor: Mark J. Ziegler
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Patent number: 8304360Abstract: A blend of ball clays for use as the ball clay component of a slip to produce a ceramic sanitary ware item by a slip casting process. The clay blend including 20-50 percent of a fine-grained ball clay with a low carbon content and 45-55 percent of its particles having a size less than 0.5 microns and about 85-95 percent of the particles less than about 20 microns.Type: GrantFiled: January 4, 2010Date of Patent: November 6, 2012Assignee: Unimin CorporationInventors: Victor Manuel Palacios Villanueva, Garry F. Webb
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Publication number: 20120263954Abstract: An ultra-fine inorganic powder for use as a filler and formed from a hard, naturally occurring mined material, in particular nepheline syenite, where the powder has a targeted controlled maximum particle size of less than 5 microns and a generally uncontrolled minimum particle size.Type: ApplicationFiled: April 26, 2012Publication date: October 18, 2012Applicant: UNIMIN CORPORATIONInventors: Scott Van Remortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Patent number: 8235313Abstract: A method of making frac sand having a selected grade from a naturally occurring, mined sand having a SiO2 content of at least about 80 percent and having a particle size range where the maximum particle size is less than about 8.Type: GrantFiled: September 10, 2009Date of Patent: August 7, 2012Assignee: Unimin CorporationInventor: Mark J. Ziegler
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Publication number: 20120171491Abstract: An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or “engineered” particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size “engineered” powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.Type: ApplicationFiled: March 15, 2012Publication date: July 5, 2012Applicant: UNIMIN CORPORATIONInventors: David D. Kragten, Christy Karr, JR., Scott VanRemortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Patent number: 8182601Abstract: An ultra-fine powder formed from a naturally occurring mineral or rock material and having a controlled or “engineered” particle size distribution (PSD) to match the infrared spectra with a maximum particle size in the range of 14-17 microns measured as either D99, or preferably D95, and a minimum particle size D5 in the range of 4-7 microns. Preferably the maximum particle size is about 15 microns, the minimum particle size is about 5 microns and the D50 particle size is about 8-10 microns with the moisture content of the particle size “engineered” powder being less than about 0.20 percent by weight and preferably about 0.05 to 0.08 percent by weight of the powder. This specially “engineered” ultra-fine powder is used to reduce the thermicity of thermal film to a value less than about 20%.Type: GrantFiled: September 25, 2008Date of Patent: May 22, 2012Assignee: Unimin CorporationInventors: David D. Kragten, Christy Karr, Jr., Scott VanRemortel, Robert Ratcliff, Ibezim Anazia, Louis M. Schlesinger
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Patent number: 8097078Abstract: An improvement in a mixture for forming into a body that is to be fired into a “whiteware ceramic product” wherein the mixture is a compound of clay and other minerals with a ferric oxide content of less than about 5.0% by weight of the dry mixture. The improvement includes adding to the mixture a binder in the form of a combination of protein and a vegetable flour with an equivalent gram strength of at least 30 grams and a protein content of 20-50% of the binder, where the binder is in the range of 0.05% to 0.50% by weight of the dry mixture.Type: GrantFiled: October 21, 2008Date of Patent: January 17, 2012Assignee: Unimin CorporationInventor: Clayton Collins
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Patent number: 8070080Abstract: The method of converting nepheline syenite particulate feedstock with a grain size profile to an ultra-fine grain finish product for subsequent commercial use, the ultra-fine grain final product has a maximum grain size of less than about 6 microns.Type: GrantFiled: January 5, 2011Date of Patent: December 6, 2011Assignee: Unimin CorporationInventors: Louis M. Schlesinger, Mauricio Duran Sanchez, Gerardo Hernandez Gonzalez, Artemio Gonzalez Acevedo
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Publication number: 20110290917Abstract: A method of making frac sand having a selected grade from a naturally occurring, mined sand having a SiO2 content of at least about 80 percent and having a particle size range where the maximum particle size is less than about 8.Type: ApplicationFiled: August 3, 2011Publication date: December 1, 2011Applicant: UNIMIN CORPORATIONInventor: Mark J. Ziegler
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Patent number: 8022019Abstract: Method and system for making a spherical proppant having a selected grade from a naturally occurring mined mineral having a hardness of over 6.0 Mohs. The method and system involves preprocessing the mineral mechanically into a semi-dry feedstock comprising a mass of particles with initial sphericity values generally less than 0.60; subjecting the semi-dry feedstock to an aggressive abrasive attrition operation for a process time; and, controlling the process time to a value wherein the particles of the feedstock are converted to final processed particles having a sphericity greater than 0.60 by increasing the sphericity of the feedstock particles by at least 0.10. In addition, the processed particles are screened to obtain a proppant having a selected grade.Type: GrantFiled: November 20, 2009Date of Patent: September 20, 2011Assignee: Unimin CorporationInventors: David John Rush, Juan Leal Gonzalez
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Publication number: 20110163192Abstract: The method of converting nepheline syenite particulate feedstock with a grain size profile to an ultra-fine grain finish product for subsequent commercial use, the ultra-fine grain final product has a maximum grain size of less than about 6 microns.Type: ApplicationFiled: January 5, 2011Publication date: July 7, 2011Applicant: UNIMIN CORPORATIONInventors: Louis M. Schlesinger, Mauricio Duran Sanchez, Gerardo Hernandez Gonzalez, Artemio Gonzalez Acevedo
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Publication number: 20110165421Abstract: The method of converting nepheline syenite particulate feedstock with a grain size profile to an ultra-fine grain finish product for subsequent commercial use, the ultra-fine grain final product has a maximum grain size of less than about 6 microns.Type: ApplicationFiled: January 5, 2011Publication date: July 7, 2011Applicant: UNIMIN CORPORATIONInventors: Louis M. Schlesinger, Mauricio Duran Sanchez, Gerardo Hernandez Gonzalez, Artemio Gonzalez Acevedo