METHOD FOR PRODUCING POROUS CELLULOSE BEADS

    公开(公告)号:SG192992A1

    公开(公告)日:2013-10-30

    申请号:SG2013065180

    申请日:2012-03-06

    Applicant: KANEKA CORP

    Abstract: The objective of the present invention is to provide a convenient method for producing porous cellulose beads having high mechanical strength without using an auxiliary material which is5 highly toxic and corrosive and without a cumbersome and industrially adverse step. The method for producing porous cellulose beads according to the present invention is characterized in comprising the steps of mixing a cold alkaline aqueous solution and cellulose to prepare a cellulose dispersion and bringing the cellulose10 dispersion into contact with a coagulating solvent.

    METHOD FOR PRODUCING POROUS CELLULOSE BEADS

    公开(公告)号:CA2828369A1

    公开(公告)日:2012-09-13

    申请号:CA2828369

    申请日:2012-03-06

    Applicant: KANEKA CORP

    Abstract: The purpose of the present invention is to provide a method for simply and easily producing porous cellulose beads having high mechanical strength without using a toxic and highly corrosive auxiliary starting material and without including a complicated process that is commercially disadvantageous. A method for producing porous cellulose beads of the present invention is characterized in that a cellulose dispersion liquid, which is obtained by mixing an alkaline aqueous solution at a low temperature with cellulose, is brought into contact with a coagulation solvent.

    METHOD FOR MANUFACTURING POROUS CELLULOSE BEADS
    4.
    发明公开
    METHOD FOR MANUFACTURING POROUS CELLULOSE BEADS 审中-公开
    VERFAHREN ZUR HERSTELLUNG VONPORÖSENCELLULOSEPERLEN

    公开(公告)号:EP3059251A4

    公开(公告)日:2017-07-19

    申请号:EP14854425

    申请日:2014-10-14

    Applicant: KANEKA CORP

    Abstract: The present invention provides a method for easily and efficiently producing cellulose beads which has narrow pore size distribution and pore structure suitable for an adsorbent and of which adsorption performance is excellent without using highly toxic and highly corrosive auxiliary raw material and without industrially disadvantageous cumbersome step. The method for producing porous cellulose beads according to the present invention is characterized in comprising (a) the step of preparing a fine cellulose dispersion by mixing a low temperature alkaline aqueous solution and cellulose, (b) the step of preparing a mixed liquid by adding a water-soluble low molecular organic compound to the fine cellulose dispersion, (c) the step of preparing an emulsion by dispersing the mixed liquid in a dispersion medium, (d) the step of contacting the emulsion with a coagulating solvent.

    Abstract translation: 本发明提供一种容易且高效地制造纤维素珠的方法,该纤维素珠具有适用于吸附剂的窄孔径分布和孔结构,并且其吸附性能优异,而不使用高毒性和高腐蚀性的辅助原料,并且不存在工业上不利的麻烦步骤。 本发明的多孔性纤维素珠的制造方法的特征在于,包括:(a)将低温碱性水溶液与纤维素混合而制备微细纤维素分散液的工序;(b)通过添加混合液 (c)通过将该混合液体分散在分散介质中制备乳液的步骤,(d)使该乳液与凝结溶剂接触的步骤。

    Method of manufacturing cellulose porous film
    9.
    发明专利
    Method of manufacturing cellulose porous film 审中-公开
    制造纤维素多孔膜的方法

    公开(公告)号:JP2012057137A

    公开(公告)日:2012-03-22

    申请号:JP2010204969

    申请日:2010-09-13

    Abstract: PROBLEM TO BE SOLVED: To provide a method of safely and simply manufacturing a porous cellulose film which can be utilized as an adsorbent of various substances without using a solvent with high toxicity, such as calcium thiocyanate, wherein the method controls the shape, the membranous thickness, and the shape of a hole.SOLUTION: The method of manufacturing a cellulose porous film is characterized as follows. A solution containing cellulose and an ion liquid is solidified by bringing the solution into contact with a cellulose undissolved liquid. The ion liquid which can be separated/recovered is used, thereby manufacturing a cellulose porous film more safely, at lower cost, and with outstanding productive efficiency. The kind and composition of a cellulose undissolved solvent, the shape of a mold to be used, and the injection rate of a cellulose solution to a mold are altered, thereby changing the shape, thickness, and pore diameter of a cellulose porous film. The cellulose porous film can be utilized as an adsorbent of various substances.

    Abstract translation: 要解决的问题:提供一种安全简单地制造多孔纤维素膜的方法,其可以用作各种物质的吸附剂,而不使用高毒性的溶剂,例如硫氰酸钙,其中该方法控制形状 ,膜厚度和孔的形状。 解决方案:制造纤维素多孔膜的方法的特征如下。 通过使溶液与纤维素未溶解的液体接触,将含有纤维素和离子液体的溶液固化。 使用可分离/回收的离子液体,从而以更低的成本,更优良的生产效率更安全地制造纤维素多孔膜。 纤维素未溶解溶剂的种类和组成,待使用的模具的形状以及纤维素溶液对模具的注入速度发生了改变,从而改变了纤维素多孔膜的形状,厚度和孔径。 纤维素多孔膜可以用作各种物质的吸附剂。 版权所有(C)2012,JPO&INPIT

    Method for producing cellulose porous particle
    10.
    发明专利
    Method for producing cellulose porous particle 有权
    生产纤维素多孔颗粒的方法

    公开(公告)号:JP2011214003A

    公开(公告)日:2011-10-27

    申请号:JP2011061700

    申请日:2011-03-18

    Abstract: PROBLEM TO BE SOLVED: To provide a method for safely and simply forming porous cellulose particles, which are usable as adsorbents for various materials, with a small amount of solvent without using liquid-liquid dispersion and for varying an operation parameter for formation of the cellulose particles over a wide range.SOLUTION: In the method for producing cellulose porous particles, the cellulose porous particles are formed when a solution including cellulose and an ionic liquid is turned into droplets in gas, and then, brought into contact with a cellulose-insoluble solvent to be solidified. The cellulose porous particles produced by this method can be suitably used as adsorbents for various materials.

    Abstract translation: 要解决的问题:提供一种安全简单地形成可用作各种材料的吸附剂的多孔纤维素颗粒的方法,其中使用少量溶剂而不使用液 - 液分散体并改变用于形成纤维素的操作参数 颗粒在很宽的范围内。解决方案:在制造纤维素多孔颗粒的方法中,当包含纤维素和离子液体的溶液在气体中变成液滴时,形成纤维素多孔颗粒,然后与不溶于纤维素的 溶剂固化。 通过该方法制造的纤维素多孔颗粒可以适合用作各种材料的吸附剂。

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