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    Method for manufacturing microfibrillated polysaccharide
    3.
    发明授权
    Method for manufacturing microfibrillated polysaccharide 有权

    公开(公告)号：US10364297B2

    公开(公告)日：2019-07-30

    申请号：US15523177

    申请日：2015-10-26

    Applicant: Stora Enso OYJ

    Inventor： Lars Axrup ,  Henri Kastinen

    IPC: D21H11/18 ,  C08B1/00 ,  C08B15/00 ,  D21C9/00 ,  D21H11/20 ,  D21H15/02 ,  D21C5/00 ,  C08B15/02 ,  C08L1/02

    Abstract: The present invention relates to a method for manufacturing microfibrillated polysaccharide, preferably microfibrillated cellulose. The invention also relates to microfibrillated cellulose obtainable by the method and use of the microfibrillated cellulose. The method of manufacturing microfibrillated cellulose comprises the following steps: a) Providing a hemicellulose containing pulp, b) Providing wood degrading enzymes c) Mixing pulp and enzymes d) Keeping the mixture in a continuous, flowing system of essentially cylindrical geometry (for example in a plug-flow reactor), e) Conveying the mixture to one or more mixing zones for recirculating and homogenizing the mixture, and f) Harvesting microfibrillated cellulose with a relatively narrow size distribution during the recirculation.

    MIXING DRYING OF NANOFIBRILLATED POLYSACCHARIDE
    6.
    发明申请
    MIXING DRYING OF NANOFIBRILLATED POLYSACCHARIDE 审中-公开
    NANOFIBRILLATED POLYSACCHARIDE的混合干燥

    公开(公告)号：US20150308017A1

    公开(公告)日：2015-10-29

    申请号：US14441263

    申请日：2013-10-30

    Applicant: Stora Enso Oyj

    Inventor： Kaj Backfolk ,  Heidi Saxell ,  Isto Heiskanen ,  Lars Axrup ,  Cecilia Land Hensdal ,  Veikko Jokela ,  Esa Saukkonen ,  Ari Kotilainen ,  Henri Kastinen ,  Anna Kauppi

    IPC: D01F2/00

    CPC classification number: D01F2/00 ,  C08L1/04 ,  D21C9/007 ,  D21C9/06 ,  D21C9/18 ,  D21H11/18 ,  F26B3/36

    Abstract: A method for drying nanofibrillated polysaccharide to obtain a substantially dry nanofibrillated polysaccharide product, comprising the following steps: (i) providing an aqueous suspension of nanofibrillated polysaccharide; (ii) increasing the solid content of said suspension, thereby forming a high solid content microfibrillated cellulose suspension; and (iii) drying said high solid content microfibrillated cellulose suspension, through a simultaneous heating and mixing operation.

    Abstract translation: 一种干燥纳米纤维化多糖以获得基本干燥的纳米纤维化多糖产物的方法，包括以下步骤：（i）提供纳米纤维化多糖的水性悬浮液; （ii）增加所述悬浮液的固体含量，从而形成高固体含量的微纤化纤维素悬浮液; 和（iii）通过同时加热和混合操作来干燥所述高固含量微纤化纤维素悬浮液。

    Method of producing microfibrillated cellulose
    7.
    发明授权
    Method of producing microfibrillated cellulose 有权

    公开(公告)号：US10240288B2

    公开(公告)日：2019-03-26

    申请号：US14758708

    申请日：2013-12-30

    Applicant: Stora Enso OYJ

    Inventor： Isto Heiskanen ,  Henri Kastinen ,  Anna Kauppi ,  Jukka Kankkunen ,  Lars Axrup ,  Cecilia Land Hensdal ,  Heidi Saxell ,  Kaj Backfolk

    IPC: D21C9/00 ,  D21H11/18 ,  D21H17/00 ,  D21H11/04 ,  C08B15/08 ,  C08L1/04 ,  D21D1/20

    Abstract: The invention relates to methods of producing microfibrillated cellulose (MFC). According to the invention a fibrous pulp suspension is fibrillated mechanically at a consistency of less than 12.5%, dewatered to raise the consistency of the fibrillated suspension to at least 12.5%, and then subjected in the dewatered condition to further fibrillation. Alternatively an initially fibrillated fibrous pulp suspension may be dewatered and fibrillated in the dewatered condition, after which these dewatering and fibrillating steps are repeated one or more times so that pulp consistency is increased for each fibrillation step. The goals of raising the consistency between subsequent fibrillations are energy saving and an increased aspect ratio in MFC. The invention even comprises uses of the MFC product, e.g. as an additive for papermaking furnish or injection molded plastic composites.

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