Patents by Inventor Jukka Räsänen
Jukka Räsänen 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).
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Publication number: 20230339828Abstract: Herein is provided a process for combined renewable 1-decene and renewable carboxylic diacid production from a fatty acid ester containing feedstock, wherein the feedstock is first subjected to metathesis reaction conditions, recovery of 1-decene and then to microbial oxidation to yield diacids in a fermentation broth. Diacids of unusual carbon chains lengths are thereby obtainable.Type: ApplicationFiled: September 25, 2020Publication date: October 26, 2023Applicant: Neste OyjInventors: Jukka HIETALA, Jukka RÄSÄNEN, Anja LEMINEN, Virpi RÄMÖ
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Patent number: 11795124Abstract: Herein is provided a process for producing renewable products, such as alkenes, from a feedstock of biological origin. The process includes subjecting a feedstock including fatty acid glycerides and optionally free fatty acids, wherein at least one hydrocarbon chain is unsaturated, to esterification reaction in the presence of an alcohol. The ester stream thereby obtained is then fractionated and a fraction including esters of unsaturated C18 fatty acids is subjected to metathesis conditions in the presence of an alkene to obtain metathesis products. Fractionation of the metathesis products includes recovery of at least renewable 1-decene, and unsaturated C10-C15 fatty acid esters.Type: GrantFiled: September 25, 2020Date of Patent: October 24, 2023Assignee: Neste OyjInventors: Jukka Hietala, Anja Leminen, Virpi Rämö, Jukka Räsänen
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Patent number: 11512157Abstract: The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first overhead stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (G) passing the second overhead stream to a third fractionator; (H) withdrawing a third overhead stream and a third bottom stream from the third fractionator; characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.Type: GrantFiled: November 22, 2018Date of Patent: November 29, 2022Assignee: BOREALIS AGInventors: Mohammad Al-Haj Ali, Erik Eriksson, Guhan Mathivanan, Jukka Räsänen, Henry Sleijster, Sameer Vijay, Samuli Zitting
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Publication number: 20220363613Abstract: Herein is provided a process for producing renewable products, such as alkenes, from a feedstock of biological origin. The process includes subjecting a feedstock including fatty acid glycerides and optionally free fatty acids, wherein at least one hydrocarbon chain is unsaturated, to esterification reaction in the presence of an alcohol. The ester stream thereby obtained is then fractionated and a fraction including esters of unsaturated C18 fatty acids is subjected to metathesis conditions in the presence of an alkene to obtain metathesis products. Fractionation of the metathesis products includes recovery of at least renewable 1-decene, and unsaturated C10-C15 fatty acid esters.Type: ApplicationFiled: September 25, 2020Publication date: November 17, 2022Applicant: Neste OyjInventors: Jukka HIETALA, Anja LEMINEN, Virpi RÄMÖ, Jukka RÄSÄNEN
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Publication number: 20220356131Abstract: A process for combined renewable 1-decene and renewable carboxylic diacid production from a fatty acid ester containing feedstock, wherein the feedstock is first subjected to metathesis reaction conditions, recovery of 1-decene and then to microbial oxidation to yield diacids in a fermentation broth. Diacids of unusual carbon chains lengths are thereby obtainable.Type: ApplicationFiled: September 25, 2020Publication date: November 10, 2022Applicant: Neste OyjInventors: Jukka HIETALA, Jukka RÄSÄNEN, Anja LEMINEN, Virpi RÄMÖ
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Patent number: 11213765Abstract: The present invention provides a process for recovering transition metal tetrahalides from a waste stream coming from a catalyst manufacturing process by (a) establishing a mixed stream comprising transition metal tetrahalide and transition metal alkoxyhalides; (b) forming a falling liquid film from the mixed stream of step (a) at a temperature of from 25 to 85° C. and an absolute pressure of from 0.05 to 0.6 bar; and (c) establishing from the film of step (b) a first vapour stream containing from 90 to 100% of recoverable components and a second liquid stream containing about 10 to 80% of titanium haloalkoxides.Type: GrantFiled: July 30, 2019Date of Patent: January 4, 2022Assignee: Borealis AGInventors: Mikko Lylykangas, Jukka Räsänen, Klaus Nyfors, Pekka Malinen
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Patent number: 11149096Abstract: The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapor phase coexist; (B) withdrawing a vapor stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterized in that at least a part of the second overhead stream is withdrawn as a purge stream.Type: GrantFiled: November 22, 2018Date of Patent: October 19, 2021Assignee: BOREALIS AGInventors: Mohammad Al-Haj Ali, Erik Eriksson, Guhan Mathivanan, Jukka Räsänen, Henry Sleijster, Sameer Vijay, Samuli Zitting
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Publication number: 20210171677Abstract: The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first overhead stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; (G) passing the second overhead stream to a third fractionator; (H) withdrawing a third overhead stream and a third bottom stream from the third fractionator; characterised in that at least a part of the third bottom stream is withdrawn as a purge stream.Type: ApplicationFiled: November 22, 2018Publication date: June 10, 2021Inventors: Mohammad AL-HAJ ALI, Erik ERIKSSON, Guhan MATHIVANAN, Jukka RÄSÄNEN, Henry SLEIJSTER, Sameer VIJAY, Samuli ZITTING
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Patent number: 10829610Abstract: The present invention deals with a process for polymerising olefins in a solution and withdrawing a stream of the solution from the polymerisation reactor and passing it to a sequence of heating steps. The heated solution is passed to a separation step, which is conducted at a pressure of no more than 15 bar and in which separation step a liquid phase comprising the polymer and a vapour phase coexist. A vapour stream and a concentrated solution stream comprising the polymer are withdrawn from the separation step. At least a part of the vapour stream is passed to the first polymerisation reactor, to the second polymerisation reactor or to both.Type: GrantFiled: December 21, 2016Date of Patent: November 10, 2020Assignee: BOREALIS AGInventors: Mohammad Al-Haj Ali, Michiel Bergstra, Erik Eriksson, Guhan Mathivanan, Jukka Räsänen, Henry Sleijster, Sameer Vijay, Christof Wurnitsch, Samuli Zitting, Vasileios Kanellopoulos, Jani Aho
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Publication number: 20200277413Abstract: The present invention relates to a process for removing hydrocarbons comprising the steps of: (A) passing a stream of a solution into a separator wherein a liquid phase comprising polymer and a vapour phase coexist; (B) withdrawing a vapour stream and a concentrated solution stream from the separator; (C) passing at least a part of the vapour stream into a first fractionator; (D) withdrawing a first overhead stream and a first bottom stream from the first fractionator; (E) passing the first bottom stream to a second fractionator; (F) withdrawing a second overhead stream and a second bottom stream from the second fractionator; characterised in that at least a part of the second overhead stream is withdrawn as a purge stream.Type: ApplicationFiled: November 22, 2018Publication date: September 3, 2020Inventors: Mohammad Al-Haj Ali, Erik Eriksson, Guhan Mathivanan, Jukka Räsänen, Henry Sleijster, Sameer Vijay, Samuli Zitting
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Publication number: 20190351346Abstract: The present invention provides a process for recovering transition metal tetrahalides from a waste stream coming from a catalyst manufacturing process by (a) establishing a mixed stream comprising transition metal tetrahalide and transition metal alkoxyhalides; (b) forming a falling liquid film from the mixed stream of step (a) at a temperature of from 25 to 85° C. and an absolute pressure of from 0.05 to 0.6 bar; and (c) establishing from the film of step (b) a first vapour stream containing from 90 to 100% of recoverable components and a second liquid stream containing about 10 to 80% of titanium haloalkoxides.Type: ApplicationFiled: July 30, 2019Publication date: November 21, 2019Inventors: Mikko Lylykangas, Jukka Räsänen, Klaus Nyfors, Pekka Malinen
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Patent number: 10369491Abstract: The present invention provides a process for recovering transition metal tetrahalides from a waste stream coming from a catalyst manufacturing process by (a) establishing a mixed stream comprising transition metal tetrahalide and transition metal alkoxyhalides; (b) forming a falling liquid film from the mixed stream of step (a) at a temperature of from 25 to 85° C. and an absolute pressure of from 0.05 to 0.6 bar; and (c) establishing from the film of step (b) a first vapor stream containing from 90 to 100% of recoverable components and a second liquid stream containing about 10 to 80% of titanium haloalkoxides.Type: GrantFiled: November 11, 2011Date of Patent: August 6, 2019Assignee: Borealis AGInventors: Mikko Lylykangas, Jukka Räsänen, Klaus Nyfors, Pekka Malinen
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Publication number: 20190126511Abstract: Process for hydraulic conveying of polyolefin pellets comprising the steps of: (i) extruding molten polyolefin into strands and cutting the strands into pellets in an underwater pelletiser (A); (ii) withdrawing a first pellet suspension stream (1.1) from the pelletiser; (iii) concentrating the first pellet suspension stream in a first pellet separator (B); (iv) passing the concentrated pellet stream (1.4) to a hydraulic conveying line through a first vessel (D) and mixing it with water thereby producing a second pellet suspension stream (1.5); (v) withdrawing the second pellet suspension stream from the first vessel and passing it to a second pellet separator (E); (vi) separating the pellets from water in the second pellet separator thereby creating a second water stream (1.6) and a dry pellet stream (1.10) and passing the second water stream back to the first vessel; wherein any one of the first or second pellet suspension stream or the dry pellet stream comprises an antiblock.Type: ApplicationFiled: May 9, 2017Publication date: May 2, 2019Inventors: Jukka Räsänen, Samuli Zitting, Henry Sleijster, Michiel Bergstra, Sameer Vijay
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Publication number: 20180371201Abstract: The present invention deals with a process for polymerising olefins in a solution and withdrawing a stream of the solution from the polymerisation reactor and passing it to a sequence of heating steps. The heated solution is passed to a separation step, which is conducted at a pressure of no more than 15 bar and in which separation step a liquid phase comprising the polymer and a vapour phase coexist. A vapour stream and a concentrated solution stream comprising the polymer are withdrawn from the separation step. At least a part of the vapour stream is passed to the first polymerisation reactor, to the second polymerisation reactor or to both.Type: ApplicationFiled: December 21, 2016Publication date: December 27, 2018Inventors: Mohammad AL-HAJ ALI, Michiel BERGSTRA, Erik ERIKSSON, Guhan MATHIVANAN, Jukka RÄSÄNEN, Henry SLEIJSTER, Sameer VIJAY, Christof WURNITSCH, Samuli ZITTING, Vasileios KANELLOPOULOS, Jani AHO
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Publication number: 20140042010Abstract: The present invention provides a process for recovering transition metal tetrahalides from a waste stream coming from a catalyst manufacturing process by (a) establishing a mixed stream comprising transition metal tetrahalide and transition metal alkoxyhalides; (b) forming a falling liquid film from the mixed stream of step (a) at a temperature of from 25 to 85° C. and an absolute pressure of from 0.05 to 0.6 bar; and (c) establishing from the film of step (b) a first vapour stream containing from 90 to 100% of recoverable components and a second liquid stream containing about 10 to 80% of titanium haloalkoxides.Type: ApplicationFiled: November 11, 2011Publication date: February 13, 2014Applicant: BOREALIS AGInventors: Mikko Lylykangas, Jukka Räsänen, Klaus Nyfors, Pekka Malinen