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    FRACTIONATOR
    2.
    发明公开
    FRACTIONATOR 失效
    分馏

    公开(公告)号：EP0721528A1

    公开(公告)日：1996-07-17

    申请号：EP94929078.0

    申请日：1994-09-29

    申请人： KVAERNER HYMAC AS

    发明人： STRID, Kent ,  OSWALDSSON, Rolf ,  ENGEWIK, Terje ,  RASMUSSEN, Sigmund

    IPC分类号： B03B5 ,  D21D5 ,  D21F1

    CPC分类号： D21D5/00 ,  B03B5/56 ,  D21D5/005 ,  D21F1/66

    摘要： A fractionator for fractioning a suspension in at least two fractions, including a drum (1) rotatable about a substantially horizontal axis and having axially spaced end walls (3, 4), a centrally arranged inlet (9) for suspension, a flow channel for suspension in the drum and outlet means (15) for fractions. The flow channel (12-10, 10-13, 13-11, 11-14, 14-2) extends from the inlet (9) forth and back between the end walls of the drum and radially outwards towards an outlet (15) for the at least two fractions. Preferably, the flow channel is defined by substantially concentric cylindrical walls (10-14), of which every second (10, 11) in its one axial end is tightly connected to one end wall (3) of the drum and every second (12, 13, 14) in its one axial end is tightly connected to the other end wall (4) of the drum, so that flow can take place between the respective other ends of the cylindrical walls and the one and the other end wall, respectively, of the drum.

    PROCESS FOR MAKING PARTLY-HYDROLYZED CELLULOSE USING COMPRESSED CELLULOSIC MATERIALS
    3.
    发明公开
    PROCESS FOR MAKING PARTLY-HYDROLYZED CELLULOSE USING COMPRESSED CELLULOSIC MATERIALS 有权
    VERFAHREN ZUR HERSTELLUNG TEILWEISE HYDROLYSIERTER CELLULOSE MITHILFE KOMPRIMIERTER CELLULOSEMATERIALIEN

    公开(公告)号：EP2898141A4

    公开(公告)日：2016-07-06

    申请号：EP12885040

    申请日：2012-09-20

    申请人： NORAM ENGINEERING AND CONSTRUCTORS LTD

    发明人： LOCKHART JAMES M ,  WEARING JAMES T ,  GULAMHUSEIN ALI ,  HOBENSHIELD EVAN J ,  DEVRIES DURK

    IPC分类号： D21C9/00 ,  D21C3/04 ,  D21C3/06

    CPC分类号： D21H17/65 ,  D21C9/002 ,  D21C9/004 ,  D21C9/007 ,  D21D5/005 ,  D21F7/086 ,  D21H11/04

    摘要： A method and apparatus for contacting and reacting fine cellulosic material with acid to produce partly-hydrolyzed cellulose, in which the cellulose is compressed to form higher density material, resulting in reduced consumption of acid and increased uniformity of reaction times. Cellulosic material, such as ground wood pulp, is compressed to reduce the interstitial spaces therein. The compressed material is contacted with an acid, such as sulfuric acid, which is allowed to wick into the interstitial spaces and react with the cellulose to produce partly-hydrolyzed cellulose.

    摘要翻译： 一种使细纤维素材料与酸接触和反应以产生部分水解的纤维素的方法和装置，其中纤维素被压缩以形成较高密度的材料，导致酸的消耗减少并且反应时间的均匀性增加。 纤维素材料如磨木浆被压缩以减少其中的间隙空间。 将压缩的材料与酸（例如硫酸）接触，其被允许吸入间隙空间并与纤维素反应以产生部分水解的纤维素。

    MAGNETIC DEINKING OF WASTE PAPERS
    4.
    发明授权
    MAGNETIC DEINKING OF WASTE PAPERS 失效
    废纸脱墨磁

    公开(公告)号：EP0885325B1

    公开(公告)日：2001-07-04

    申请号：EP96910340.7

    申请日：1996-03-08

    申请人： WESTVACO CORPORATION

    发明人： MARWAH, Nipun ,  GOLD, Allen, A.

    IPC分类号： D21C5/02

    CPC分类号： D21B1/325 ,  D21C5/02 ,  D21C5/025 ,  D21D5/00 ,  D21D5/005 ,  Y02W30/646 ,  Y02W30/648

    摘要： An improved process is disclosed for deinking waste paper which contains laser, electrostatic, and other non-impact printing toners/inks to produce high quality (high brightness, little to no dirt content) pulp with little or no fiber loss. The process involves attachment of ink particles in the waste paper pulp to a magnetic carrier material with the help of an agglomeration agent followed by removal of the attached ink particles by magnetic separation. The magnetic treatment preferably is conducted at ambient or greater temperature, at neutral to alkaline pH, and at a low pulp consistency. Agglomeration and magnetite addition, followed by exposure of the repulped waste paper to a magnetic field provides near complete ink removal over exposure to the magnetic field without such pretreatment. Also, the process may be employed as an additional step in a conventional process for removing inks from reprographic printed papers, such as ink removal by screening, flotation, centrifugal cleaning, washing, and sedimentation with or without decantation.

    FRACTIONATOR
    5.
    发明授权
    FRACTIONATOR 失效
    分馏

    公开(公告)号：EP0721528B1

    公开(公告)日：1999-07-21

    申请号：EP94929078.7

    申请日：1994-09-29

    申请人： KVAERNER PULPING AS.

    发明人： STRID, Kent ,  OSWALDSSON, Rolf ,  ENGEWIK, Terje ,  RASMUSSEN, Sigmund

    IPC分类号： D21D5/00 ,  B03B5/56

    CPC分类号： D21D5/00 ,  B03B5/56 ,  D21D5/005 ,  D21F1/66

    摘要： A fractionator for fractioning a suspension in at least two fractions, including a drum (1) rotatable about a substantially horizontal axis and having axially spaced end walls (3, 4), a centrally arranged inlet (9) for suspension, a flow channel for suspension in the drum and outlet means (15) for fractions. The flow channel (12-10, 10-13, 13-11, 11-14, 14-2) extends from the inlet (9) forth and back between the end walls of the drum and radially outwards towards an outlet (15) for the at least two fractions. Preferably, the flow channel is defined by substantially concentric cylindrical walls (10-14), of which every second (10, 11) in its one axial end is tightly connected to one end wall (3) of the drum and every second (12, 13, 14) in its one axial end is tightly connected to the other end wall (4) of the drum, so that flow can take place between the respective other ends of the cylindrical walls and the one and the other end wall, respectively, of the drum.

    MAGNETIC DEINKING OF WASTE PAPERS
    6.
    发明公开
    MAGNETIC DEINKING OF WASTE PAPERS 失效
    废纸脱墨磁

    公开(公告)号：EP0885325A1

    公开(公告)日：1998-12-23

    申请号：EP96910340.0

    申请日：1996-03-08

    申请人： WESTVACO CORPORATION

    发明人： MARWAH, Nipun ,  GOLD, Allen, A.

    IPC分类号： D21C ,  B03C1 ,  D21B1 ,  D21C5 ,  D21D5

    CPC分类号： D21B1/325 ,  D21C5/02 ,  D21C5/025 ,  D21D5/00 ,  D21D5/005 ,  Y02W30/646 ,  Y02W30/648

    摘要： An improved process is disclosed for deinking waste paper which contains laser, electrostatic, and other non-impact printing toners/inks to produce high quality (high brightness, little to no dirt content) pulp with little or no fiber loss. The process involves attachment of ink particles in the waste paper pulp to a magnetic carrier material with the help of an agglomeration agent followed by removal of the attached ink particles by magnetic separation. The magnetic treatment preferably is conducted at ambient or greater temperature, at neutral to alkaline pH, and at a low pulp consistency. Agglomeration and magnetite addition, followed by exposure of the repulped waste paper to a magnetic field provides near complete ink removal over exposure to the magnetic field without such pretreatment. Also, the process may be employed as an additional step in a conventional process for removing inks from reprographic printed papers, such as ink removal by screening, flotation, centrifugal cleaning, washing, and sedimentation with or without decantation.

    "> Magnetic removal of
    9.
    发明公开
    Magnetic removal of"stickies"from waste papers 失效
    Abtrennung von Klebstoffen aus Altpapier mit Hilfe von Magnetkraft

    公开(公告)号：EP0869218A1

    公开(公告)日：1998-10-07

    申请号：EP97302250.2

    申请日：1997-04-02

    申请人： WESTVACO CORPORATION

    发明人： Marwah, Nipun ,  Gold, Allen A.

    IPC分类号： D21C1/00 ,  D21C5/02 ,  D21B1/32 ,  B03C1/00

    CPC分类号： D21C5/02 ,  D21C5/025 ,  D21D5/005 ,  Y02W30/648

    摘要： An improved process is disclosed for removing "stickies" from waste paper which contains hot-melt and pressure-sensitive adhesives and lattices to produce high quality (high brightness, little to no dirt content) pulp with little or no fiber loss. The process involves attachment of sticky particles in the waste paper pulp to a magnetic carrier material with the help of an agglomeration agent followed by removal of the attached sticky particles by magnetic separation. The magnetic treatment preferably is conducted at ambient or greater temperature, at neutral to alkaline pH and at a low pulp consistency. Agglomeration and magnetite addition, followed by exposure of the repulped waste paper to a magnetic field provides near complete sticky removal over exposure to the magnetic field without such pre-treatment.

    摘要翻译： 公开了一种改进的方法，用于从含有热熔和压敏粘合剂和网格的废纸中除去“粘性物质”，以产生很少或没有纤维损失的高质量（高亮度，少至无污垢）的纸浆。 该方法包括借助于附聚剂将废纸浆中的粘性颗粒附着到磁性载体材料，然后通过磁力分离除去附着的粘性颗粒。 磁性处理优选在中性至碱性pH和低浆浓度的环境温度或更高温度下进行。 聚集和磁铁矿的添加，随后将再生废纸暴露于磁场，在暴露于磁场的情况下提供接近完全的粘性去除，而无需这种预处理。