Patents by Inventor Evangelos Sklavounos
Evangelos Sklavounos 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: 20240101908Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: October 3, 2023Publication date: March 28, 2024Inventors: Thomas FENDERSON, Lasse KYLLONEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
-
Patent number: 11845899Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: GrantFiled: April 1, 2021Date of Patent: December 19, 2023Assignee: KEMIRA OYJInventors: Thomas Fenderson, Lasse Kyllonen, Alistair King, Evangelos Sklavounos, Frances Fournier, Sukhjit Aujla
-
Patent number: 11697772Abstract: Hydrotropic composition comprising at least one surface active cationic component, which is selected from a group of cholinium, guadinium or tetramethylguadinium, preferably cholinium, and a straight or branched carboxylate anion having at least six carbon atoms; and its uses, for treating of oil sands or the like, for treating tailings from separation of bitumen, asphaltenes or the like.Type: GrantFiled: March 31, 2021Date of Patent: July 11, 2023Assignee: KEMIRA OYJInventors: Alistair King, Evangelos Sklavounos, Tiina Laaksonen, Antti Rantamaki, Susanne Wiedmer, Lasse Kyllonen, Suvi-Katriina Ruokonen
-
Publication number: 20210292654Abstract: Hydrotropic composition comprising at least one surface active cationic component, which is selected from a group of cholinium, guadinium or tetramethylguadinium, preferably cholinium, and a straight or branched carboxylate anion having at least six carbon atoms; and its uses, for treating of oil sands or the like, for treating tailings from separation of bitumen, asphaltenes or the like.Type: ApplicationFiled: March 31, 2021Publication date: September 23, 2021Inventors: Alistair KING, Evangelos SKLAVOUNOS, Tiina LAAKSONEN, Antti RANTAMAKI, Susanne WIEDMER, Lasse KYLLONEN, Suvi-Katriina RUOKONEN
-
Publication number: 20210284914Abstract: The invention relates to method and composition for treating tailings from a separation process, where bitumen is separated from mineral solids. Tailings comprise an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method comprises addition of a flocculating agent comprising polyacrylamide to the tailings, as well as addition of an auxiliary agent comprising ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which comprise solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition comprises a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: April 1, 2021Publication date: September 16, 2021Inventors: Thomas FENDERSON, Lasse KYLLONEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
-
Publication number: 20210238482Abstract: The invention relates to a surfactant composition comprising an ionic liquid prepared from an unsubstituted or substituted primary, secondary or tertiary amine, or from an unsubstituted or substituted pyridine, amidine or guanidine with at least one fatty acid and/or resin acid. The invention also relates to a method for treating bitumen froth from a separation process, where bitumen is separated from mineral solids. The method comprises addition of said surfactant composition to the diluent and/or to the froth before phase separation.Type: ApplicationFiled: February 5, 2021Publication date: August 5, 2021Inventors: Lasse Kyllonen, Sukhjit Aujla, Frances Fournier, Thomas Fenderson, Alistair King, Evangelos Sklavounos
-
Patent number: 11001761Abstract: A method and a composition for treating tailings from a separation process are disclosed, where bitumen is separated from mineral solids. Tailings include an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method includes addition of a flocculating agent including polyacrylamide to the tailings, as well as addition of an auxiliary agent including ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which include solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition in a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: GrantFiled: December 7, 2017Date of Patent: May 11, 2021Assignee: Kemira OyjInventors: Thomas Fenderson, Lasse Kyllönen, Alistair King, Evangelos Sklavounos, Frances Fournier, Sukhjit Aujla
-
Patent number: 10995275Abstract: A hydrotropic composition including at least one surface active cationic component, which is selected from a group of cholinium, guadinium or tetramethylguadinium, preferably cholinium, and a straight or branched carboxylate anion having at least six carbon atoms and its uses, for treating of oil sands or the like, for treating tailings from separation of bitumen, asphaltenes or the like.Type: GrantFiled: January 11, 2018Date of Patent: May 4, 2021Assignee: Kemira OyjInventors: Alistair King, Evangelos Sklavounos, Tiina Laaksonen, Antti Rantamäki, Susanne Wiedmer, Lasse Kyllönen, Suvi-Katriina Ruokonen
-
Patent number: 10920149Abstract: The invention relates to a surfactant composition comprising an ionic liquid prepared from an unsubsituted or substituted primary, secondary or tertiary amine, or from an unsubstituted or substituted pyridine, amidine or guanidine with at least one fatty acid and/or resin acid. The invention also relates to a method for treating bitumen froth from a separation process, where bitumen is separated from mineral solids. The method comprises addition of said surfactant composition to the diluent and/or to the froth before phase separation.Type: GrantFiled: June 10, 2016Date of Patent: February 16, 2021Assignee: Kemira OyjInventors: Lasse Kyllönen, Sukhjit Aujla, Frances Fournier, Thomas Fenderson, Alistair King, Evangelos Sklavounos
-
Publication number: 20190345392Abstract: A hydrotropic composition including at least one surface active cationic component, which is selected from a group of cholinium, guadinium or tetramethylguadinium, preferably cholinium, and a straight or branched carboxylate anion having at least six carbon atoms and its uses, for treating of oil sands or the like, for treating tailings from separation of bitumen, asphaltenes or the like.Type: ApplicationFiled: January 11, 2018Publication date: November 14, 2019Applicant: Kemira OyjInventors: Alistair KING, Evangelos SKLAVOUNOS, Tiina LAAKSONEN, Antti RANTAMÄKI, Susanne WIEDMER, Lasse KYLLÖNEN, Suvi-Katriina RUOKONEN
-
Publication number: 20190284478Abstract: A method and a composition for treating tailings from a separation process are disclosed, where bitumen is separated from mineral solids. Tailings include an aqueous phase with suspended solid particulate material and residual bitumen and have a dry solids content <25 weight-%. The method includes addition of a flocculating agent including polyacrylamide to the tailings, as well as addition of an auxiliary agent including ionic liquid to tailings in conjunction with the flocculating agent. Flocs, which include solid particulate material, are formed and the formed flocs are separated from the aqueous phase. The composition in a copolymer of (meth)acrylamide and an auxiliary agent comprising ionic liquid.Type: ApplicationFiled: December 7, 2017Publication date: September 19, 2019Inventors: Thomas FENDERSON, Lasse KYLLÖNEN, Alistair KING, Evangelos SKLAVOUNOS, Frances FOURNIER, Sukhjit AUJLA
-
Publication number: 20180155628Abstract: The invention relates to a surfactant composition comprising an ionic liquid prepared from an unsubsituted or substituted primary, secondary or tertiary amine, or from an unsubstituted or substituted pyridine, amidine or guanidine with at least one fatty acid and/or resin acid. The invention also relates to a method for treating bitumen froth from a separation process, where bitumen is separated from mineral solids. The method comprises addition of said surfactant composition to the diluent and/or to the froth before phase separation.Type: ApplicationFiled: June 10, 2016Publication date: June 7, 2018Applicant: Kemira OyjInventors: Lasse Kyllönen, Sukhjit Aujla, Frances Fournier, Thomas Fenderson, Alistair King, Evangelos Sklavounos
-
Publication number: 20150225896Abstract: The present invention relates to producing chemicals and biofuels from wood material, e.g. mixed forest biomass. Specifically, the invention concerns a process for conditioning spent liquor produced by SO2-ethanol-water (SEW) fractionation of wood chips for fermentation to butanol, ethanol and acetone/isopropanol (so called ABE process) by Clostridia bacteria.Type: ApplicationFiled: April 20, 2015Publication date: August 13, 2015Inventors: Adriaan VAN HEININGEN, Evangelos SKLAVOUNOS
-
Patent number: 9012188Abstract: The present invention relates to producing chemicals and biofuels from wood material, e.g. mixed forest biomass. Specifically, the invention concerns a process for conditioning spent liquor produced by SO2-ethanol-water (SEW) fractionation of wood chips for fermentation to butanol, ethanol and acetone/isopropanol (so called ABE process) by Clostridia bacteria.Type: GrantFiled: March 16, 2012Date of Patent: April 21, 2015Assignee: API Intellectual Property Holdings, LLCInventors: Adriaan Van Heiningen, Evangelos Sklavounos
-
Publication number: 20140004582Abstract: The present invention relates to producing chemicals and biofuels from wood material, e.g. mixed forest biomass. Specifically, the invention concerns a process for conditioning spent liquor produced by SO2-ethanol-water (SEW) fractionation of wood chips for fermentation to butanol, ethanol and acetone/isopropanol (so called ABE process) by Clostridia bacteria.Type: ApplicationFiled: March 16, 2012Publication date: January 2, 2014Applicant: API Intellectual Property Holdings, LLCInventors: Adriaan Van Heiningen, Evangelos Sklavounos