RECOVERY OF WOOD ACETYLATION FLUID
    52.
    发明公开
    RECOVERY OF WOOD ACETYLATION FLUID 审中-公开
    木材乙酰化液的回收

    公开(公告)号:EP3169455A1

    公开(公告)日:2017-05-24

    申请号:EP15738676.4

    申请日:2015-07-17

    Abstract: Disclosed is the integration of the production of acetic anhydride from ketene, and the acetylation of wood using acetylation fluid comprising acetic acid and acetic anhydride. The invention involves recovering acetylation fluid from wood acetylation, and sending this to an acetic anhydride distillation unit belonging to the acetic anhydride production plant.

    Abstract translation: 公开了乙烯酮生产乙酸酐的集成和乙酸乙酰化流体(包括乙酸和乙酸酐)对木材的乙酰化。 本发明涉及从木材乙酰化回收乙酰化流体,并将其送入属于乙酸酐生产工厂的乙酸酐蒸馏单元。

    RECOVERY AND USE OF WOOD ACETYLATION FLUID
    56.
    发明公开
    RECOVERY AND USE OF WOOD ACETYLATION FLUID 审中-公开
    木材乙酰化液的回收利用

    公开(公告)号:EP3169456A1

    公开(公告)日:2017-05-24

    申请号:EP15738680.6

    申请日:2015-07-17

    Abstract: Disclosed is the integration of the production of acetic anhydride from ketene, and the acetylation of wood using acetylation fluid comprising acetic acid and acetic anhydride. The invention involves recirculating acetylation fluid recovered from wood acetylation to a unit for the production of acetic anhydride from acetic acid and ketene. The acetic anhydride product stream can, in turn, be directly used as a wood acetylation fluid.

    Abstract translation: 公开了乙烯酮生产乙酸酐的集成和乙酸乙酰化流体(包括乙酸和乙酸酐)对木材的乙酰化。 本发明涉及将从木材乙酰化回收的乙酰化流体再循环至由乙酸和乙烯酮生产乙酸酐的单元。 乙酸酐产物流又可以直接用作木材乙酰化液。

    PROCESS FOR THE ACETYLATION OF WOOD
    59.
    发明公开
    PROCESS FOR THE ACETYLATION OF WOOD 审中-公开
    木材乙酰化方法

    公开(公告)号:EP3169495A2

    公开(公告)日:2017-05-24

    申请号:EP15739567.4

    申请日:2015-07-16

    CPC classification number: B27K3/0278 B27K3/346 B27K5/001 C08B3/06 C08H8/00

    Abstract: Disclosed is a process for the acetylation of wood, wherein the wood is impregnated with acetylation fluid and heated in stages. It is thereby secured that an acetylation reaction is conducted at a temperature above the boiling temperature of the acetylation fluid, at a stage where the impregnated wood is largely devoid of free acetylation fluid (i.e., acetylation fluid not retained in the wood matrix or in capillaries). Preferably, the process is conducted in a plant having conveyors, such as transportation screws, in the zones in which the separate heating steps are conducted.

    Abstract translation: 公开了一种木材乙酰化方法,其中木材用乙酰化液浸渍并分阶段加热。 由此确保乙酰化反​​应在乙酰化流体的沸点温度以上的温度下进行,在浸渍木材大部分没有游离乙酰化流体的阶段(即乙酰化流体未保留在木质基质或毛细血管中 )。 优选地,该方法在具有输送机例如输送螺杆的工厂中进行单独加热步骤的区域中进行。

    METHOD FOR THE MODIFICATION OF WOOD
    60.
    发明公开
    METHOD FOR THE MODIFICATION OF WOOD 审中-公开
    VERFAHREN ZUR BEARBEITUNG VON HOLZ

    公开(公告)号:EP3142837A1

    公开(公告)日:2017-03-22

    申请号:EP15721018.8

    申请日:2015-05-12

    Abstract: Disclosed is a method for the continuous impregnation of wood elements, such as wood chips. The method comprises the subsequent steps of subjecting the wood elements to vacuum, to contact with acetylation fluid, and to impregnation pressure. Preferably, the process is conducted in a plant having conveyors, such as transportation screws, in suitable positions between the zones in which the subsequent process steps are conducted. The impregnation method is used in connection with the acetylation of the wood elements, and preferably is followed by a continuous acetylation process conducted in an acetylation reaction zone downstream of the zone where the impregnation is conducted.

    Abstract translation: 公开了一种用于连续浸渍诸如木片的木质元素的方法。 该方法包括以下步骤:使木质元件真空,与乙酰化液体接触,并进行浸渍压力。 优选地,该方法在具有输送机(例如输送螺杆)的工厂中,在进行后续工艺步骤的区域之间的适当位置进行。 浸渍方法与木材元素的乙酰化有关,优选在进行浸渍的区域下游的乙酰化反应区进行连续乙酰化处理。

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