Patents by Inventor Vili Ravanko
Vili Ravanko 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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Patent number: 7722721Abstract: The invention relates to a process of recovering galactose from a solution derived from plant-based biomass. In the process of the invention, the starting solution is subjected to one or more chromatographic fractionation steps, which may carried out with a strongly basic anion exchange resin and optionally with a strongly acid cation exchange resin, in any desired sequence, followed by recovering at least one fraction enriched in galactose. The galactose fraction thus obtained is further purified by crystallization to obtain crystalline galactose. The invention also relates to non-animal derived crystalline D-galactose.Type: GrantFiled: March 5, 2007Date of Patent: May 25, 2010Assignee: Danisco Sweeteners OyInventors: Heikki Heikkilä, Katja Häkkä, Juho Jumppanen, Pia Saari, Nina Nurmi, Vili Ravanko
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Patent number: 7407586Abstract: The invention relates to an equipment for fractionating a solution by a sequential SMB process, which equipment comprises a feed column and one or several other columns, which include a chromatographic separation resin bed. The equipment of the invention is characterized in that the feed column consists of or comprises a compartment where the resin bed is shallower than that of one or more of the other columns of the equipment. The invention also relates to a method for fractionating a solution into two or more fractions with the equipment of the invention.Type: GrantFiled: June 29, 2005Date of Patent: August 5, 2008Assignee: Finnfeeds Finland OyInventors: Juho Jumppanen, Jarmo Kuisma, Hannu Paananen, Vili Ravanko, Jukka Rinne
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Publication number: 20070155677Abstract: The invention relates to a process of recovering galactose from a solution derived from plant-based biomass. In the process of the invention, the starting solution is subjected to one or more chromatographic fractionation steps, which may carried out with a strongly basic anion exchange resin and optionally with a strongly acid cation exchange resin, in any desired sequence, followed by recovering at least one fraction enriched in galactose. The galactose fraction thus obtained is further purified by crystallization to obtain crystalline galactose. The invention also relates to non-animal derived crystalline D-galactose.Type: ApplicationFiled: March 5, 2007Publication date: July 5, 2007Applicant: Danisco Sweeteners OyInventors: Heikki Heikkila, Katja Hakka, Juho Jumppanen, Pia Saari, Nina Nurmi, Vili Ravanko
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Patent number: 7128833Abstract: The invention relates to an equipment for fractionating a solution by a sequential SMB process, which equipment comprises a feed column and one or several other columns, which include a chromatographic separation resin bed. The equipment of the invention is characterized in that the feed column consists of or comprises a compartment where the resin bed is shallower than that of one or more of the other columns of the equipment. The invention also relates to a method for fractionating a solution into two or more fractions with the equipment of the invention.Type: GrantFiled: February 25, 2003Date of Patent: October 31, 2006Assignee: Finnfeeds Finland OyInventors: Juho Jumppanen, Jarmo Kuisma, Hannu Paananen, Vili Ravanko, Jukka Rinne
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Patent number: 7060188Abstract: The invention relates to a system and a process for fractionating a solution into two or more fractions. The system of the invention comprises at least two compartments having a diameter of at least about one meter and including a uniform packing of a polymer-based ion exchange resin with a bead size in the range of about 50 to about 250 ?m. The mixing volume of the fluid fronts in the system of the invention is not more than 5% of the volume of the compartment.Type: GrantFiled: February 25, 2004Date of Patent: June 13, 2006Assignee: Finnfeeds Finland OyInventors: Hannu Paananen, Jarmo Kuisma, Heikki Heikkilä, Vili Ravanko, Jari Lewandowski, Ari Kärki
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Patent number: 7037378Abstract: The invention relates to the recovery of deoxy sugars, such as fucose from biomass-derived solutions, such as spent liquors obtained from pulping processes. The invention is based on the use of chromatographic fractionation with specific column packing materials and combinations thereof. The deoxy sugar product obtained from the chromatographic fractionation may be further purified by crystallization. The invention also provides a novel crystalline fucose product and a novel process for the crystallization of fucose.Type: GrantFiled: September 24, 2003Date of Patent: May 2, 2006Assignee: Danisco Sweetners OyInventors: Juho Jumppanen, Vili Ravanko, Heikki Heikkilä, Juha Nurmi, Nina Nurmi, Pia Saari, Katja Häkkä, Jari Lewandowski
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Patent number: 7022239Abstract: The present invention relates to a method of fractionating liquid mixtures or solutions, comprising the steps of subjecting a feed in the form of a liquid mixture or solution to a first chromatographic separation, thereby recovering at least a fraction (A) and a fraction (B) both containing a first component or product, subjecting a mixture or solution derived from or comprising said fraction (A) to a second chromatographic separation, thereby recovering at least a fraction (C) rich in said first component or product and subjecting a mixture or solution derived from or comprising said fraction (B) to a third chromatographic separation, thereby recovering at least a fraction (D) also rich in said first component or product, and whereby at least two fractions are recovered from the second and third chromatographic separations.Type: GrantFiled: March 14, 2003Date of Patent: April 4, 2006Assignee: Danisco Sweeteners OyInventors: Heikki Heikkilä, Jarmo Kuisma, Jari Lewandowski, Hannu Paananen, Vili Ravanko, Jukka Rinne
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Patent number: 6987183Abstract: The present invention is directed to a method comprising a multistep process for recovering one or more monosaccharides from a solution containing at least two monosaccharides selected from the group consisting of rhamnose, arabinose, xylose and mixtures thereof by using chromatographic separation comprising at least one step, where a weak acid cation exchange resin is used for the chromatographic separation.Type: GrantFiled: September 28, 2001Date of Patent: January 17, 2006Assignee: Danisco Sweeteners OyInventors: Heikki Heikkila, Juho Jumppanen, Ve{grave over (s)}a Kurula, Vili Ravanko, Tiina Tervala, Nina Mayra
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Publication number: 20050256307Abstract: The present invention pertains to a chromatographic process for separating saccharide monomers from dimers and/or saccharide trimers from dimers. The separation is effected with a cation exchange resin. If saccharide monomers are separated from saccharide dimers the cation exchange resin has a high degree of crosslinking. If the saccharide dimers are separated from saccharide trimers the cation exchange resins has a low degree of crosslinking.Type: ApplicationFiled: February 4, 2003Publication date: November 17, 2005Inventors: Vili Ravanko, Nina Mayra, Heikki Heikkila, Hannu Koivikko, Pekka Kekki, Hannu Kalliomaki, Matti Tylli, Johanna Nygren
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Publication number: 20050236332Abstract: The invention relates to an equipment for fractionating a solution by a sequential SMB process, which equipment comprises a feed column and one or several other columns, which include a chromatographic separation resin bed. The equipment of the invention is characterized in that the feed column consists of or comprises a compartment where the resin bed is shallower than that of one or more of the other columns of the equipment. The invention also relates to a method for fractionating a solution into two or more fractions with the equipment of the invention.Type: ApplicationFiled: June 29, 2005Publication date: October 27, 2005Applicant: Finnfeeds Finland OyInventors: Juho Jumppanen, Jarmo Kuisma, Hannu Paananen, Vili Ravanko, Jukka Rinne
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Patent number: 6924371Abstract: The invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly acid cation exchange resin is utilized. The weakly acid cation exchange resin is used for separation of hydrophobic saccharides, such as deoxy, methyl and anhydrosugars and anhydrosugaralcohols from more hydrophilic saccharides.Type: GrantFiled: March 31, 2003Date of Patent: August 2, 2005Assignee: Danisco Sweeteners OyInventors: Ari Kärki, Heikki Heikkilä, Juho Jumppanen, Jari Tiihonen, Tiina Tervala, Nina Mäyrä, Vili Ravanko, Hannu Paananen, Erkki Paatero
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Patent number: 6911565Abstract: The present invention relates to a process for the production of xylitol. The process utilises ribulose for the preparation of xylitol and involves several different conversion reactions, such as reduction, epimerisation and/or isomerisation. The present invention also relates to the use of ribulose for the preparation of xylitol.Type: GrantFiled: September 26, 2002Date of Patent: June 28, 2005Assignee: Danico Sweetners OyInventors: Heikki Heikkilä, Heikki Ojamo, Andrei Miasnikov, Vili Ravanko, Matti Tylli
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Patent number: 6894199Abstract: The present invention relates to the production of xylitol. In particular, processes utilising L-xylose as an intermediate for xylitol production are described. The present invention also relates to process for the preparation or L-xylose, as an intermediate, by-product or end-product to be used per se.Type: GrantFiled: April 29, 2002Date of Patent: May 17, 2005Assignee: Danisco Sweeteners OyInventors: Heikki Heikkilä , Heikki Ojamo, Matti Tylli, Vili Ravanko, Juha Nurmi, Piia Haimi, Raimo Alen, Hannu Koivikko
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Publication number: 20050061313Abstract: The invention relates to the recovery of deoxy sugars, such as fucose from biomass-derived solutions, such as spent liquors obtained from pulping processes. The invention is based on the use of chromatographic fractionation with specific column packing materials and combinations thereof. The deoxy sugar product obtained from the chromatographic fractionation may be further purified by crystallization. The invention also provides a novel crystalline fucose product and a novel process for the crystallization of fucose.Type: ApplicationFiled: September 24, 2003Publication date: March 24, 2005Applicant: Danisco Sweeteners OyInventors: Juho Jumppanen, Vili Ravanko, Heikki Heikkila, Juha Nurmi, Nina Nurmi, Pia Saari, Katja Hakka, Jari Lewandowski
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Publication number: 20050033045Abstract: The invention relates to a process of recovering galactose from a solution derived from plant-based biomass. In the process of the invention, the starting solution is subjected to one or more chromatographic fractionation steps, which may carried out with a strongly basic anion exchange resin and optionally with a strongly acid cation exchange resin, in any desired sequence, followed by recovering at least one fraction enriched in galactose. The galactose fraction thus obtained is further purified by crystallization to obtain crystalline galactose. The invention also relates to non-animal derived crystalline D-galactose.Type: ApplicationFiled: June 24, 2004Publication date: February 10, 2005Applicant: DANISCO SWEETENERS OYInventors: Heikki Heikkila, Katja Hakka, Juho Jumppanen, Pia Saari, Nina Nurmi, Vili Ravanko
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Publication number: 20040251204Abstract: The invention relates to a system and a process for fractionating a solution into two or more fractions. The system of the invention comprises at least two compartments having a diameter of at least about one meter and including a uniform packing of a polymer-based ion exchange resin with a bead size in the range of about 50 to about 250 &mgr;m. The mixing volume of the fluid fronts in the system of the invention is not more than 5% of the volume of the compartment.Type: ApplicationFiled: February 25, 2004Publication date: December 16, 2004Applicant: Finnfeeds Finland OYInventors: Hannu Paananen, Jarmo Kuisma, Heikki Heikkila, Vili Ravanko, Jari Lewandowski, Ari Karki
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Patent number: 6773512Abstract: The invention relates to a chromatographic separation process of recovering mannose with high purity. The invention is based on the use of a chromatographic separation resin including a resin which is at least partly in a Ba2+ form resin and a resin which is in other than Ba2+ form.Type: GrantFiled: December 30, 2002Date of Patent: August 10, 2004Assignee: Danisco Sweeteners OyInventors: Anu Ennelin, Juho Jumppanen, Vili Ravanko, Juha Nurmi, Miikka Kaira, Heikki Heikkilä
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Patent number: 6770757Abstract: The invention relates to a method comprising a multistep process for recovering betaine, erythritol, inositol, sucrose, mannitol, glycerol and amino acids from corresponding starting materials. The invention comprises the use of a weakly acid cation exchange resin in chromatographic column in the multistep process. The starting materials are especially beet molasses, betaine molasses, syrups, thick juices, raw juices, corn steep cane based solutions and glycerol.Type: GrantFiled: September 28, 2001Date of Patent: August 3, 2004Assignee: Finnfeeds Finland OyInventors: Hannu Paananen, Jarmo Kuisma, Vili Ravanko, Nina Mayra, Heikki Heikkila, Jari Lewandowski
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Publication number: 20040006223Abstract: The invention relates to the use of a weakly acid cation exchange resin for chromatographic separation of carbohydrates. In the invention the hydrophilic/hydrophobic interaction of carbohydrates, sugars and sugar alcohols with the weakly acid cation exchange resin is utilised. The weakly acid cation exchange resin is used for separation of hydrophobic saccharides, such as deoxy, methyl and anhydrosugars and anhydrosugaralcohols from more hydrophilic saccharides.Type: ApplicationFiled: March 31, 2003Publication date: January 8, 2004Inventors: Ari Karki, Heikki Heikkila, Juho Jumppanen, Jari Tiihonen, Tiina Tervala, Nina Mayra, Vili Ravanko, Hannu Paananen, Erkki Paatero
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Publication number: 20030222021Abstract: The invention relates to a chromatographic separation process of recovering mannose with high purity. The invention is based on the use of a chromatographic separation resin including a resin which is at least partly in a Ba2+ form resin and a resin which is in other than Ba2+ form.Type: ApplicationFiled: December 30, 2002Publication date: December 4, 2003Inventors: Anu Ennelin, Juho Jumppanen, Vili Ravanko, Juha Nurmi, Miikka Kaira, Heikki Heikkila