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    PROCESS FOR FRACTIONATING LIGNOCELLULOSICS
    2.
    发明授权
    PROCESS FOR FRACTIONATING LIGNOCELLULOSICS 有权

    公开(公告)号：EP3072117B1

    公开(公告)日：2018-09-26

    申请号：EP14799802.5

    申请日：2014-11-19

    申请人： Annikki GmbH

    发明人： DYBOV, Alexander ,  MAYER, Bernd ,  PRINCE, Christopher Lucas

    IPC分类号： C07G1/00

    CPC分类号： C07G1/00

    摘要： A method for the isolation of lignin from a lignocellulosic biomass, comprising providing a lignocellulosic biomass; extracting sugar free lignin from the lignocellulosic biomass by contacting said biomass with an organic aqueous solution comprising water and at least one water miscible organic solvent, either discontinuously or continuously, whereby a biomass-solvent suspension is formed; separating the sugar free lignin solution from the biomass-solvent suspension to obtain a sugar free lignin solution and a cellulosic material enriched with lignin carbohydrate complexes and hemicellulose, and optionally isolating sugar free lignin from the sugar free lignin solution; extracting the lignin carbohydrate complexes from the cellulosic material enriched with lignin carbohydrate complexes and hemicellulose by contacting said cellulosic material with a liquid comprising at least water, whereby treated biomass suspension is formed; separating the lignin carbohydrate complexes solution from said treated biomass suspension to obtain a lignin carbohydrate complexes solution and cellulosic material enriched with hemicellulose, and, optionally isolating lignin carbohydrate complexes from the solution obtained and isolating further sugar free lignin from the mother liquor of said lignin carbohydrate complexes isolation, optionally after combining the mother liquor of said lignin carbohydrate complexes isolation with the sugar free lignin solution obtained from extracting sugar free lignin from the lignocellulosic biomass.

    PROCESS FOR LIGNIN PURIFICATION AND ISOLATION
    5.
    发明公开
    PROCESS FOR LIGNIN PURIFICATION AND ISOLATION 审中-公开
    方法LIGNINREINIGUNG和隔离

    公开(公告)号：EP3080353A1

    公开(公告)日：2016-10-19

    申请号：EP14821093.3

    申请日：2014-12-11

    申请人： Annikki GmbH

    发明人： DYBOV, Alexander ,  MATEJKA, Julia

    IPC分类号： D21C11/00 ,  D21C11/04

    CPC分类号： D21C11/0007 ,  C07C29/86 ,  C07G1/00 ,  D21C11/0035 ,  D21C11/0085 ,  D21C11/04

    摘要： A method for removing inorganic salts from an alcoholic basic lignin solution, comprising the steps of adding an acid to said solution whereby an alcoholic lignin solution is formed, and separating a precipitate comprising an inorganic precipitate from said solution, and a method for separating lignin from an alcoholic basic lignin solution, comprising the steps of adding an acid to said solution whereby an alcoholic lignin solution is formed, separating a precipitate comprising an inorganic precipitate from said solution, removing ethanol from said solution, optionally adjusting the pH of the mixture obtained, and separating lignin from said mixture, and, a method for avoiding foaming during alcohol recovery from an alcoholic mixture comprising lignin, optionally after separation of an inorganic precipitate, which method is characterized in that a pH of 2 to 9 of the alcoholic mixture is adjusted during alcohol recovery.

    PROCESS FOR FRACTIONATING LIGNOCELLULOSICS
    6.
    发明公开
    PROCESS FOR FRACTIONATING LIGNOCELLULOSICS 审中-公开
    木质纤维素的方法分离

    公开(公告)号：EP3072117A1

    公开(公告)日：2016-09-28

    申请号：EP14799802.5

    申请日：2014-11-19

    申请人： Annikki GmbH

    发明人： DYBOV, Alexander ,  MAYER, Bernd ,  PRINCE, Christopher

    IPC分类号： G07G1/00

    CPC分类号： C07G1/00

    摘要： A method for the isolation of lignin from a lignocellulosic biomass, comprising providing a lignocellulosic biomass; extracting sugar free lignin from the lignocellulosic biomass by contacting said biomass with an organic aqueous solution comprising water and at least one water miscible organic solvent, either discontinuously or continuously, whereby a biomass-solvent suspension is formed; separating the sugar free lignin solution from the biomass-solvent suspension to obtain a sugar free lignin solution and a cellulosic material enriched with lignin carbohydrate complexes and hemicellulose, and optionally isolating sugar free lignin from the sugar free lignin solution; extracting the lignin carbohydrate complexes from the cellulosic material enriched with lignin carbohydrate complexes and hemicellulose by contacting said cellulosic material with a liquid comprising at least water, whereby treated biomass suspension is formed; separating the lignin carbohydrate complexes solution from said treated biomass suspension to obtain a lignin carbohydrate complexes solution and cellulosic material enriched with hemicellulose, and, optionally isolating lignin carbohydrate complexes from the solution obtained and isolating further sugar free lignin from the mother liquor of said lignin carbohydrate complexes isolation, optionally after combining the mother liquor of said lignin carbohydrate complexes isolation with the sugar free lignin solution obtained from extracting sugar free lignin from the lignocellulosic biomass.

    VERFAHREN ZUR HERSTELLUNG VON ZELLSTOFF MIT NIEDRIGEM LIGNINGEHALT AUS LIGNOCELLULOSISCHEM MATERIAL
    7.
    发明公开
    VERFAHREN ZUR HERSTELLUNG VON ZELLSTOFF MIT NIEDRIGEM LIGNINGEHALT AUS LIGNOCELLULOSISCHEM MATERIAL 有权
    VERFAHREN ZUR HERSTELLUNG VON ZELLSTOFF MIT NIEDRIGEM LIGNINGEHALT AUS LIGNOCELLULISISCHEM MATERIAL

    公开(公告)号：EP2844796A1

    公开(公告)日：2015-03-11

    申请号：EP13723025.6

    申请日：2013-04-24

    申请人： Annikki GmbH

    发明人： DYBOV, Alexander ,  BOECK, Florian

    IPC分类号： D21C3/00 ,  D21C3/02 ,  D21C3/04 ,  D21C3/20

    CPC分类号： D21H17/66 ,  D21C3/00 ,  D21C3/02 ,  D21C3/026 ,  D21C3/04 ,  D21C3/20 ,  D21C5/005

    摘要： The invention relates to a method for obtaining pulp having low lignin content, characterized by a combination of the measures in which a) lignocellulosic material is treated with an aqueous solution, which contains a C
    1-6 alcohol and has a pH value of 10 to 14, at a temperature below 100°C, whereupon the aqueous solution, in which lignin that was cleaved from the lignocellulose is dissolved, is separated from the solid, which is a material enriched with cellulose and hemicellulose, b) hemicellulose is removed from the material enriched with cellulose and hemicellulose from a), c) the material obtained in b), which is depleted of hemicellulose, is treated in aqueous alkaline solution with an alkali, alkaline-earth, or ammonium sulfite, in particular Na
    2 SO
    3 , and/or with oxygen, wherein lignin goes into solution and pulp having low lignin content is obtained; and pulp that can be produced by means of the method.

    摘要翻译： 一种用于生产木质素含量低的纤维素的方法，其特征在于以下措施的组合：a）木质纤维素材料在包含C 1-6醇的水溶液中并且在10-14℃的温度下处理 其中从木质纤维素分离的木质素以溶解形式存在的水溶液与表示富含纤维素和半纤维素的材料的固体分离，b）从半纤维素的材料中除去半纤维素 ），c）在碱性亚硫酸盐，碱土金属亚硫酸盐或亚硫酸铵，特别是Na 2 SO 3和/或在碱性水溶液中用氧处理b）中得到的半纤维素贫化物质，b） 木质素溶解，得到木质素含量低的纤维素; 以及可以通过该方法生产的纤维素。