DEVICE FOR CONTINUOUSLY PRODUCING CHEMICALLY-MODIFIED CELLULOSE AND METHOD USED IN SAME

    公开(公告)号:EP3345930A1

    公开(公告)日:2018-07-11

    申请号:EP16851868.6

    申请日:2016-09-30

    摘要: This invention concerns an apparatus for continuously producing chemically-modified cellulose, obtained by reacting a fine-powder cellulose fiber material and a hydrophobizing chemical substance, and a method that is used in the apparatus. The apparatus constitutes part of an apparatus for continuously producing a cellulose nanofiber composite separator for lithium ion batteries out of a fine-powder cellulose fiber starting material, and contributes to efficiently producing a cellulose nanofiber composite separator for lithium ion batteries. Specifically, the apparatus has a first mechanism for transporting a fine-powder cellulose fiber starting material and a hydrophobizing chemical substance, a specific extruder, a solvent tank connected to the extruder, and a dryer connected to the solvent tank, and the method has a step of washing, in the solvent tank, chemically-modified cellulose having been produced out of the fine-powder cellulose fiber starting material and the hydrophobizing chemical substance in the extruder, and then drying the chemically-modified cellulose in the dryer, in order to remove any unreacted hydrophobizing chemical substance.

    Process for manufacturing xylooligosaccharides
    3.
    发明公开
    Process for manufacturing xylooligosaccharides 有权
    Verfahren zur Herstellung von Xylooligosacchariden

    公开(公告)号:EP1466926A2

    公开(公告)日:2004-10-13

    申请号:EP04014480.0

    申请日:2003-05-19

    摘要: A process for manufacturing xyloligosaccharides comprises:

    steaming a corncob meal under conditions of a temperature of 150 to 250°C and a pressure of 20 to 29 Mpa;
    filtering the steamed corncob meal to obtain a filtrate from which solid has been removed;
    performing an enzyme treatment by reacting xylanase with soluble xylan in the filtrate to hydrolyze xylan;
    removing any suspended matter from a reaction product obtained during the enzyme treatment; and
    drying the reaction product.

    摘要翻译: 制造低聚糖的方法包括:在150〜250℃的温度和20〜29Mpa的压力的条件下蒸煮玉米芯粉; 过滤蒸煮的玉米芯粉,得到已除去固体的滤液; 通过将木聚糖酶与可溶性木聚糖反应在滤液中进行酶处理以水解木聚糖; 从酶处理期间获得的反应产物中除去任何悬浮物; 并干燥反应产物。

    Method and apparatus for controlling acetylation of cellulose
    5.
    发明公开
    Method and apparatus for controlling acetylation of cellulose 失效
    用于控制纤维素乙酰化的方法和装置

    公开(公告)号:EP0789033A3

    公开(公告)日:1998-12-02

    申请号:EP97101138

    申请日:1997-01-24

    申请人: DAICEL CHEM

    发明人: YAMASHITA MITSURU

    IPC分类号: B01J19/00 C08B3/06 C08B17/02

    摘要: In a production process of a cellulose acetate which comprises (a) a reduced pressure-acetylation step of acetylating a cellulose under a reduced pressure in the presence of sulfuric acid or other acidic catalyst, with distilling off a gaseous phase component of the reaction system out of the system, and (b) a post-acetylation step of allowing the acetylation to further proceed by increasing the pressure as compared with the pressure of the reduced pressure-acetylation step by means of release of the pressure reduction of the reaction system or the like, the shift operation from the reduced pressure-acetylation step to the post-acetylation step is conducted by taking a distilling rate of a distillate in the reduced pressure-acetylation step as an index to control the reaction temperature of the post-acetylation step. The shift operation from the reduced pressure-acetylation step to the post-acetylation step may also be conducted by taking a distilling rate after the distilling rate in the reduced pressure-acetylation step has reached a maximum value.

    Method and apparatus for controlling acetylation of cellulose
    6.
    发明公开
    Method and apparatus for controlling acetylation of cellulose 失效
    Verfahren und Einrichtung zur Kontrolle von Acetylierung von Cellulose

    公开(公告)号:EP0789033A2

    公开(公告)日:1997-08-13

    申请号:EP97101138.2

    申请日:1997-01-24

    IPC分类号: C08B3/06

    摘要: In a production process of a cellulose acetate which comprises (a) a reduced pressure-acetylation step of acetylating a cellulose under a reduced pressure in the presence of sulfuric acid or other acidic catalyst, with distilling off a gaseous phase component of the reaction system out of the system, and (b) a post-acetylation step of allowing the acetylation to further proceed by increasing the pressure as compared with the pressure of the reduced pressure-acetylation step by means of release of the pressure reduction of the reaction system or the like, the shift operation from the reduced pressure-acetylation step to the post-acetylation step is conducted by taking a distilling rate of a distillate in the reduced pressure-acetylation step as an index to control the reaction temperature of the post-acetylation step. The shift operation from the reduced pressure-acetylation step to the post-acetylation step may also be conducted by taking a distilling rate after the distilling rate in the reduced pressure-acetylation step has reached a maximum value.

    摘要翻译: 在乙酸纤维素的生产方法中,其包括(a)在硫酸或其它酸性催化剂存在下,在减压下乙酰化纤维素的减压乙酰化步骤,将反应体系的气相成分蒸馏出来 和(b)通过减压反应体系的释放或减压乙酰化步骤的压力与减压乙酰化步骤相比通过增加压力来进一步进行乙酰化的后乙酰化步骤,或 通过将减压乙酰化步骤中的馏出物的蒸馏速度作为控制后乙酰化步骤的反应温度的指标进行从减压乙酰化步骤到后乙酰化步骤的转移操作。 从减压乙酰化步骤到后乙酰化步骤的转移操作也可以在减压乙酰化步骤中的蒸馏速率达到最大值之后通过蒸馏速率进行。