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    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE
    1.
    发明公开
    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE 有权
    VERFAHREN UND ZWISCHENPRODUKTE ZUR HERSTELLUNG VON HOCHRAFFERIERTER ODER MIKROFIBRILLIERTE CELLULOSE

    公开(公告)号：EP2885458A4

    公开(公告)日：2016-04-20

    申请号：EP13830431

    申请日：2013-08-16

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  LAND HENSDAL CECILIA ,  AXRUP LARS ,  SAXELL HEIDI

    IPC: D21H11/18 ,  C08L1/02 ,  D21B1/34 ,  D21B1/38 ,  D21C9/00 ,  D21C9/18

    CPC classification number: D21H17/74 ,  C08L1/02 ,  C08L2205/16 ,  C12P19/04 ,  C12P19/14 ,  D21C5/005 ,  D21C9/002 ,  D21C9/005 ,  D21C9/007 ,  D21C9/18 ,  D21H11/18 ,  D21H17/005 ,  D21H17/675

    Abstract: A method for the production of highly refined or microfibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by mechanical means to obtain the final product. Dried cellulosic pulp is produced as an intermediate product of the method, having an average fibre length of at least 0.4 mm, while less than 50% of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices.

    Abstract translation: 一种用于生产高度精制或微纤化纤维素（MFC）的方法，包括以下步骤：处理纤维素纤维以去除纤维的主壁的至少主要部分，干燥经处理的纤维，再处理经处理的纤维，以及分解 润湿纤维通过机械手段获得最终产品。 干纤维素浆是作为该方法的中间产物生产的，其平均纤维长度至少为0.4mm，而少于天然未处理纤维的主壁材料的50％留在中间产品中。 代替运送大量稀释的MFC分散体，本发明可以将干燥的中间产物运输到MFC最终用户，MFC最终用户将通过使用标准的分解装置将中间产物转化成最终的MFC来完成该方法。

    Method for the preparation of cellulose ethers with a high solids process, product obtained and uses of the product
    7.
    发明专利
    Method for the preparation of cellulose ethers with a high solids process, product obtained and uses of the product 未知

    公开(公告)号：AU2013245244B2

    公开(公告)日：2017-09-14

    申请号：AU2013245244

    申请日：2013-04-04

    Applicant: STORA ENSO OYJ

    Inventor： SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  JOKELA VEIKKO

    IPC: C08B1/08 ,  C08B11/12

    Abstract: The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS

    METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT
    8.
    发明专利
    METHOD FOR THE PREPARATION OF CELLULOSE ETHERS WITH A HIGH SOLIDS PROCESS, PRODUCT OBTAINED AND USES OF THE PRODUCT 未知

    公开(公告)号：CA2869287A1

    公开(公告)日：2013-10-10

    申请号：CA2869287

    申请日：2013-04-04

    Applicant: STORA ENSO OYJ

    Inventor： SAXELL HEIDI ,  HEISKANEN ISTO ,  AXRUP LARS ,  LAND HENSDAL CECILIA ,  JOKELA VEIKKO

    IPC: C08B1/08 ,  C08B11/12

    Abstract: The present invention provides a method for production of cellulose ethers in a high solids process substantially without use of organic solvents as reaction and/or washing medium. In the method of the invention the first alkalization step is carried out by using high solids content cellulose pulp and solid sodium hydroxide. This is followed by an etherification step where the solids content is preferably further increased and the use of solid etherification reactant is preferred. As no organic solvents are used as reaction media the invented method enables production of cellulose ethers directly from never dried pulp with significant savings in energy and investment costs. The method is especially suitable for the production of carboxymethyl cellulose sodium salt (CMC) with low degree of substitution (DS

    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE
    9.
    发明专利
    METHOD AND INTERMEDIATE FOR THE PRODUCTION OF HIGHLY REFINED OR MICROFIBRILLATED CELLULOSE 未知

    公开(公告)号：CA2881332C

    公开(公告)日：2022-06-21

    申请号：CA2881332

    申请日：2013-08-16

    Applicant: STORA ENSO OYJ

    Inventor： HEISKANEN ISTO ,  LAND HENSDAL CECILIA ,  AXRUP LARS ,  SAXELL HEIDI

    IPC: D21H11/18 ,  C08L1/02 ,  D21B1/34 ,  D21B1/38 ,  D21C9/00 ,  D21C9/18

    Abstract: The invention concerns a method for the production of highly refined or micro- fibrillated cellulose (MFC), comprising the steps of treating cellulosic fibres to remove at least a major part of the primary wall of the fibres, drying the treated fibres, rewetting the treated fibres, and disintegrating the wetted fibres by me- chanical means to obtain the final product. The invention further concerns dried cellulosic pulp as an intermediate product of the method, having an aver- age fibre length of at least 0.4 mm, while less than 50 % of the primary wall material of natural untreated fibres is left in the intermediate product. Instead of transporting large amounts of dilute MFC dispersion the invention enables transport of the dry intermediate product to the MFC end user, who would complete the process by turning the intermediate product to final MFC by use of standard disintegrating devices.

    método para a preparação de éteres de celulose
    10.
    发明专利
    método para a preparação de éteres de celulose 未知

    公开(公告)号：BR112014024931B1

    公开(公告)日：2021-03-30

    申请号：BR112014024931

    申请日：2013-04-04

    Applicant: STORA ENSO OYJ

    Inventor： AXRUP LARS ,  HEISKANEN ISTO ,  JOKELA VEIKKO ,  LAND HENSDAL CECILIA ,  SAXELL HEIDI

    IPC: C08B1/08 ,  C08B11/12

    Abstract: método para a preparação de éteres de celulose com um processo de alto conteúdo de sólidos, produto obtido e usos do produto a presente invenção proporciona um método produção de éteres de celulose em um processo para a de alto conteúdo de sólidos substancialmente sem o uso de solventes orgânicos como um meio de reação e/ou lavagem. no método de a invenção a primeira etapa de alcalinização é levada a cabo usando polpa de celulose com alto conteúdo de sólidos e hidróxido de sódio sólido. isto é seguido por uma etapa de eterificação onde o conteúdo de sólidos é preferivelmente ainda aumentado e o uso de sólido reagente de eterificação é preferido. como solventes não orgânicos são usados como meios de reação o método inventado permite a produção de éteres de celulose diretamente da polpa nunca seca com significante economia em energia e custos de investimento. o método é especialmente adequado para a produção de sal de sódio de carboximetil celulose (cmc) com baixo grau de substituição (ds

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