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21.发明专利
公开(公告)号：CA2962712A1
公开(公告)日：2016-04-07
申请号：CA2962712
申请日：2015-09-30
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: The present invention relates to a process for purifying, such as salt/ion depletion, and/or ash reduction,and/or sulphur removal, and/or free sugar depletion,and/or VOC depletion or fractionating,preferably by using dewatering, of a slurry comprising a lignin or lignin derivative or a combination thereof. A lignin or lignin derivative obtainable from said process and uses thereof are also disclosed.
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公开(公告)号：ZA201308335B
公开(公告)日：2014-11-26
申请号：ZA201308335
申请日：2013-11-06
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , KOTILAINEN ARI , SIDARAVICIUS JONAS , BACKFOLK KAJ , GAIDELIS VALENTAS
IPC: B01D20060101 , D21C20060101 , D21H20060101
Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: —providing a slurry comprising cellulose and liquid, —subjecting the slurry to an electric field inducing the liquid of the slurry to flow, —separating the liquid from the cellulose thus obtaining a liquid depleted slurry, —adding a washing liquid, such as an organic solvent, to the liquid depleted slurry—subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and—separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
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公开(公告)号：AU2012257467A1
公开(公告)日：2013-11-14
申请号：AU2012257467
申请日：2012-05-11
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: - providing a slurry comprising cellulose and liquid, - subjecting the slurry to an electric field inducing the liquid of the slurry to flow, - separating the liquid from the cellulose thus obtaining a liquid depleted slurry, - adding a washing liquid, such as an organic solvent, to the liquid depleted slurry - subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and - separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
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Patent Agency Ranking
公开(公告)号：CA2835302A1
公开(公告)日：2012-11-15
申请号：CA2835302
申请日：2012-05-11
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: - providing a slurry comprising cellulose and liquid, - subjecting the slurry to an electric field inducing the liquid of the slurry to flow, - separating the liquid from the cellulose thus obtaining a liquid depleted slurry, - adding a washing liquid, such as an organic solvent, to the liquid depleted slurry - subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and - separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
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公开(公告)号：SE2150362A1
公开(公告)日：2022-09-27
申请号：SE2150362
申请日：2021-03-26
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , SIDARAVICIUS JONAS , BACKFOLK KAJ , MALDZIUS ROBERTAS , LOZOVSKI TADEUS
Abstract: The present invention relates to an arrangement for determining the permeability of a sample, said arrangement comprising a source of fluid medium arranged such that at least a fraction of said medium can be brought into contact with a first surface of said sample to be tested; means for measuring the electrical properties at a second surface of said sample, wherein the second surface is opposite said first surface of said sample; and a controller for recording said electrical properties, and for determining the transmission rate of the fluid medium through the sample based on the recorded electricalproperties.
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公开(公告)号：AU2012257467B2
公开(公告)日：2017-05-11
申请号：AU2012257467
申请日：2012-05-11
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: The present invention relates to a process for purifying a slurry comprising cellulose, such as microfibrillated cellulose, wherein the process comprises the following steps: - providing a slurry comprising cellulose and liquid, - subjecting the slurry to an electric field inducing the liquid of the slurry to flow, - separating the liquid from the cellulose thus obtaining a liquid depleted slurry, - adding a washing liquid, such as an organic solvent, to the liquid depleted slurry - subjecting the liquid depleted slurry to an electric field inducing the washing liquid of the slurry to flow and - separating the washing liquid from the cellulose, thus obtaining a purified cellulose. The invention also relates to cellulose such as microfibrillated cellulose obtainable from said process.
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公开(公告)号：PL2707541T3
公开(公告)日：2017-01-31
申请号：PL12785526
申请日：2012-05-11
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
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公开(公告)号：CL2013003258A1
公开(公告)日：2014-08-22
申请号：CL2013003258
申请日：2013-11-13
Applicant: STORA ENSO OYJ
Inventor： HEISKANEN ISTO , BACKFOLK KAJ , KOTILAINEN ARI , GAIDELIS VALENTAS , SIDARAVICIUS JONAS
Abstract: Proceso de purificación, y/o reducción de sales/iones, y/o reducción de azúcar libre, de preferencia, mediante deshidratación, de una lechada que contiene celulosa como celulosa microfibrilada para evitar la hornificación, el cual comprende los pasos de: - proporcionar una lechada que comprende celulosa y líquido; - someter la lechada a un campo eléctrico para hacer que el líquido de la lechada fluya; - separar el líquido de la celulosa para obtener, de esta manera una lechada reducida en líquido; - añadir un líquido de lavado, como un solvente orgánico, a la lechada reducida en líquido; - someter la lechada reducida en líquido a un campo eléctrico, para que el líquido de lavado de la lechada fluya; y - separar el líquido de lavado de la celulosa, para obtener una celulosa purificada.
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