Patents by Inventor Adriaan Dirk Kon
Adriaan Dirk Kon 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: 10093608Abstract: The invention pertains to a method for preparing succinic acid which comprises providing an aqueous magnesium succinate solution to an acidification step, wherein the magnesium succinate solution is acidified by the addition of hydrogen chloride, thereby obtaining an aqueous solution comprising succinic acid and magnesium chloride and subjecting the aqueous solution comprising succinic acid and magnesium chloride derived from the acidification step to a treatment step with active carbon followed by precipitating succinic acid from an aqueous mixture comprising succinic acid and magnesium chloride resulting from the active carbon treatment step in a precipitation step to form solid succinic acid. It has been found that the method according to the invention leads to succinic acid crystals with better properties than a comparable method wherein no active carbon treatment is used.Type: GrantFiled: July 14, 2016Date of Patent: October 9, 2018Assignee: PURAC BIOCHEM B.V.Inventors: Jan Van Breugel, Peter Paul Jansen, Jose Maria Vidal Lancis, Tanja Dekic Zivkovic, Adriaan Dirk Kon
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Patent number: 10081819Abstract: A method for manufacturing a mixed solution comprising propionate and acetate includes adding acid to a fermentation product to obtain an acidified fermentation product comprising propionate and acetate with a pH in the range of 2.5 to 8. The method optionally includes removing carbonate-related compounds from the mixed solution.Type: GrantFiled: February 22, 2010Date of Patent: September 25, 2018Assignee: Purac Biochem BVInventors: Diana Visser, Arne Olav Sliekers, Adriaan Dirk Kon
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Patent number: 10040746Abstract: The invention is directed to a method for recovering carboyxlic acid from an magnesium carboxylate containing aqueous mixture, including the steps of: contacting the aqueous mixture with an acidic ion exchanger, thereby forming a carboxylic acid mixture and an ion exchanger loaded with magnesium ions; contacting the ion exchanger loaded with magnesium ions with a hydrochloric acid solution, thereby forming a magnesium chloride solution; and thermally decomposing the magnesium chloride solution at a temperature of at least 300° C., thereby forming magnesium oxide (MgO) and hydrogen chloride (HCl).Type: GrantFiled: July 14, 2016Date of Patent: August 7, 2018Assignee: PURAC BIOCHEM B.V.Inventors: Adriaan Dirk Kon, André Banier De Haan, Paulus Loduvicus Johannes Van Der Weide, Tanja Ðekic {hacek over (Z)}ivkovic, Lucien Henri Leander Jozef De Koninck
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Publication number: 20180194706Abstract: The invention pertains to a method for preparing succinic acid comprising the steps of —providing an aqueous magnesium succinate solution to an acidification step, wherein the magnesium succinate solution is acidified by the addition of hydrogen chloride, thereby obtaining an aqueous solution comprising succinic acid and magnesium chloride; —subjecting an aqueous solution comprising succinic acid and magnesium chloride derived from the acidification step to a treatment step with active carbon, —precipitating succinic acid from an aqueous mixture comprising succinic acid and magnesium chloride resulting from the active carbon treatment step in a precipitation step to form solid succinic acid and a magnesium chloride solution, —separating the solid succinic acid from the magnesium chloride solution —subjecting the magnesium chloride solution to a thermal decomposition at a temperature of at least 300° C.Type: ApplicationFiled: July 14, 2016Publication date: July 12, 2018Inventors: Jan VAN BREUGEL, Peter Paul JANSEN, Jose Maria VIDAL LANCIS, Tanja DEKIC ZIVKOVIC, Adriaan Dirk KON
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Patent number: 9644218Abstract: The present invention pertains to a fermentation process for the production of an organic acid salt including the steps of fermenting a microorganism in a fermentation medium in a fermentation reactor to form a fermentation broth having an organic acid salt, wherein part of the organic acid salt is present in the solid state and part of the organic acid salt is dissolved in the fermentation broth; withdrawing at least part of the fermentation broth from the fermentation reactor, providing the broth to a hydrocyclone, and withdrawing a top effluent and a bottom effluent from the hydrocyclone; providing the bottom effluent from the hydrocyclone to a solid/liquid separation step, to form a solid fraction and a liquid fraction, providing at least 30 vol. % of the total of the top effluent from the hydrocyclone and the liquid fraction from the solid-liquid separation step to the fermentation reactor.Type: GrantFiled: April 24, 2013Date of Patent: May 9, 2017Assignee: PURAC BIOCHEM BVInventors: Jan Van Krieken, Adriaan Dirk Kon, André Banier De Haan, Frederik Gerrit Jan Kool
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Publication number: 20160318837Abstract: The invention is directed to a method for recovering carboyxlic acid from an magnesium carboxylate containing aqueous mixture, including the steps of: contacting the aqueous mixture with an acidic ion exchanger, thereby forming a carboxylic acid mixture and an ion exchanger loaded with magnesium ions; contacting the ion exchanger loaded with magnesium ions with a hydrochloric acid solution, thereby forming a magnesium chloride solution; and thermally decomposing the magnesium chloride solution at a temperature of at least 300° C., thereby forming magnesium oxide (MgO) and hydrogen chloride (HCl).Type: ApplicationFiled: July 14, 2016Publication date: November 3, 2016Applicant: PURAC BIOCHEM BVInventors: Adriaan Dirk KON, André Banier DE HAAN, Paulus Loduvicus Johannes VAN DER WEIDE, Tanja ÐEKIC ZIVKOVIC, Lucien Henri Leander Jozef DE KONINCK
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Patent number: 9422217Abstract: The invention is directed to a method for recovering carboyxlic acid from an magnesium carboxylate containing aqueous mixture, including the steps of: contacting the aqueous mixture with an acidic ion exchanger, thereby forming a carboxylic acid mixture and an ion exchanger loaded with magnesium ions; contacting the ion exchanger loaded with magnesium ions with a hydrochloric acid solution, thereby forming a magnesium chloride solution; and thermally decomposing the magnesium chloride solution at a temperature of at least 300° C., thereby forming magnesium oxide (MgO) and hydrogen chloride (HCl).Type: GrantFiled: May 23, 2013Date of Patent: August 23, 2016Assignee: PURAC BIOCHEM BVInventors: Adriaan Dirk Kon, André Banier De Haan, Paulus Loduvicus Johannes Van Der Weide, Tanja Ðekic Živkovic, Lucien Henri Leander Jozef De Koninck
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Publication number: 20150094491Abstract: The invention is directed to a method for recovering carboyxlic acid from an magnesium carboxylate containing aqueous mixture, including the steps of: contacting the aqueous mixture with an acidic ion exchanger, thereby forming a carboxylic acid mixture and an ion exchanger loaded with magnesium ions; contacting the ion exchanger loaded with magnesium ions with a hydrochloric acid solution, thereby forming a magnesium chloride solution; and thermally decomposing the magnesium chloride solution at a temperature of at least 300° C., thereby forming magnesium oxide (MgO) and hydrogen chloride (HCl).Type: ApplicationFiled: May 23, 2013Publication date: April 2, 2015Inventors: Adriaan Dirk Kon, André Banier De Haan, Paulus Loduvicus Johannes Van Der Weide, Tanja Dekic Zivkovic, Lucien Henri Leander Jozef De Koninck
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Publication number: 20150079647Abstract: The present invention pertains to a fermentation process for the production of an organic acid salt including the steps of fermenting a microorganism in a fermentation medium in a fermentation reactor to form a fermentation broth having an organic acid salt, wherein part of the organic acid salt is present in the solid state and part of the organic acid salt is dissolved in the fermentation broth; withdrawing at least part of the fermentation broth from the fermentation reactor, providing the broth to a hydrocyclone, and withdrawing a top effluent and a bottom effluent from the hydrocyclone; providing the bottom effluent from the hydocyclone to a solid/liquid separation step, to form a solid fraction and a liquid fraction, providing at least 30 vol.% of the total of the top effluent from the hydrocyclone and the liquid fraction from the solid-liquid separation step to the fermentation reactor.Type: ApplicationFiled: April 24, 2013Publication date: March 19, 2015Inventors: Jan Van Krieken, Adriaan Dirk Kon, André Banier De Haan, Frederik Gerrit Jan Kool
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Publication number: 20110300257Abstract: A method for manufacturing a mixed solution comprising propionate and acetate includes adding acid to a fermentation product to obtain an acidified fermentation product comprising propionate and acetate with a pH in the range of 2.5 to 8. The method optionally includes removing carbonate-related compounds from the mixed solution.Type: ApplicationFiled: February 22, 2010Publication date: December 8, 2011Applicant: Purac Biochem BVInventors: Diana Visser, Arne Olav Sliekers, Adriaan Dirk Kon