公开(公告)号：SE1451174A1

公开(公告)日：2016-04-04

申请号：SE1451174

申请日：2014-10-03

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  GAIDELIS VALENTAS ,  SIDARAVICIUS JONAS

IPC: B01D35/06 ,  B01D61/42 ,  C07G1/00 ,  C08L97/00 ,  D21C11/00

公开(公告)号：CA2834460A1

公开(公告)日：2012-11-22

申请号：CA2834460

申请日：2012-05-11

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  KOTILAINEN ARI ,  GAIDELIS VALENTAS ,  SIDARAVICIUS JONAS

IPC: D21C9/00 ,  B01D61/56 ,  D21C9/06 ,  D21C9/18 ,  D21H11/18

Abstract: The present invention relates to a process for dewatering a slurry comprising microfibrillated cellulose wherein the process comprises the following steps of, providing a slurry comprising microfibrillated cellulose and liquid, subjecting the slurry to an electric field inducing the liquid of the slurry to flow and separating the liquid from the microfibrillated cellulose. The invention also relates to microfibrillated cellulose dewatered according to the process.

公开(公告)号：LT3200902T

公开(公告)日：2019-09-25

申请号：LT15845606

申请日：2015-09-30

Applicant: STORA ENSO OYJ

Inventor： HEISKANEN ISTO ,  BACKFOLK KAJ ,  GAIDELIS VALENTAS ,  SIDARAVICIUS JONAS

IPC: B01D61/42 ,  B01D35/06 ,  C07G1/00 ,  C08L9/00 ,  D21C11/00

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

IPC: B01D61/42 ,  B01D35/06 ,  C07G1/00 ,  C08L9/00 ,  D21C11/00

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.

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.

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

IPC: D21C9/06 ,  B01D61/56 ,  D21C9/18 ,  D21H11/18

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.

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

IPC: D21C9/06 ,  B01D61/56 ,  D21C9/18 ,  D21H11/18

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.