PROCESS OF PRODUCING XYLOSE AND DISSOLVING PULP
    1.
    发明申请
    PROCESS OF PRODUCING XYLOSE AND DISSOLVING PULP 有权
    生产木糖和溶解浆的方法

    公开(公告)号:US20110192560A1

    公开(公告)日:2011-08-11

    申请号:US13125152

    申请日:2009-10-20

    摘要: The present invention relates to a process for the production of xylose and dissolving pulp from xylan-containing biomass, such as hardwood. The invention is based on prehydrolysis of the xylan-containing biomass with SO2 in specified conditions, followed by chromatographic fractionation, nanofiltration or precipitation crystallization of the xylose-containing prehydrolyzate to obtain a xylose product having a xylose content of at least 55% on DS. The dissolving pulp obtained from the process can be used for example for the production of viscose.

    摘要翻译: 本发明涉及由含木聚糖的生物质如硬木生产木糖和溶解纸浆的方法。 本发明基于在特定条件下含SO2的含木聚糖的生物质的预水解,然后进行色谱分级,含木糖的预水解产物的纳滤或沉淀结晶,得到DS上木糖含量至少为55%的木糖产物。 从该方法获得的溶解纸浆可用于例如粘胶纤维的生产。

    Separation process
    2.
    发明申请
    Separation process 审中-公开
    分离过程

    公开(公告)号:US20050096464A1

    公开(公告)日:2005-05-05

    申请号:US10697763

    申请日:2003-10-30

    IPC分类号: C07H1/08 C13K13/00

    CPC分类号: C07H1/08 C13K13/00 C13K13/007

    摘要: The invention relates to a process of recovering arabinose and optionally other monosaccharides from vegetable fiber rich in heteropolymeric arabinose, such as gum arabic. Said other monosaccharides are typically selected from galactose and rhamnose. The process of the invention comprises controlled hydrolysis of the arabinose-rich vegetable fiber and fractionation of the hydrolysis product to obtain a fraction enriched in arabinose and optionally other product fractions followed by crystallization of arabinose. The invention also relates to a novel method of crystallizing arabinose from biomass-derived material. Furthermore, the invention relates to novel crystalline L-arabinose.

    摘要翻译: 本发明涉及从富含异聚阿拉伯糖的植物纤维如阿拉伯树胶中回收阿拉伯糖和任选的其它单糖的方法。 所述其它单糖通常选自半乳糖和鼠李糖。 本发明的方法包括控制富含阿拉伯糖的植物纤维的水解和水解产物的分级,以获得富含阿拉伯糖和任选的其它产物级分的级分,随后结晶阿拉伯糖。 本发明还涉及从生物质衍生的材料中结晶阿拉伯糖的新方法。 此外,本发明涉及新的结晶L-阿拉伯糖。

    Separation process
    4.
    发明申请
    Separation process 审中-公开
    分离过程

    公开(公告)号:US20070112187A1

    公开(公告)日:2007-05-17

    申请号:US10587870

    申请日:2004-10-29

    IPC分类号: C07H1/00

    CPC分类号: C07H1/08 C13K13/00 C13K13/007

    摘要: The invention relates to a process of recovering arabinose and optionally other monosaccharides from vegetable fiber rich in heteropolymeric arabinose, such as gum arabic. Said other monosaccharides are typically selected from galactose and rhamnose. The process of the invention comprises controlled hydrolysis of the arabinose-rich vegetable fiber and fractionation of the hydrolysis product to obtain a fraction enriched in arabinose and optionally other product fractions followed by crystallization of arabinose. The invention also relates to a novel method of crystallizing arabinose from biomass-derived material. Furthermore, the invention relates to novel crystalline L-arabinose.

    摘要翻译: 本发明涉及从富含异聚阿拉伯糖的植物纤维如阿拉伯树胶中回收阿拉伯糖和任选的其它单糖的方法。 所述其它单糖通常选自半乳糖和鼠李糖。 本发明的方法包括控制富含阿拉伯糖的植物纤维的水解和水解产物的分级,以获得富含阿拉伯糖和任选的其它产物级分的级分,随后结晶阿拉伯糖。 本发明还涉及从生物质衍生的材料中结晶阿拉伯糖的新方法。 此外,本发明涉及新的结晶L-阿拉伯糖。

    Separation process
    10.
    发明授权
    Separation process 有权
    分离过程

    公开(公告)号:US07008485B2

    公开(公告)日:2006-03-07

    申请号:US10451859

    申请日:2001-12-28

    IPC分类号: C13D3/16 B01D37/00

    CPC分类号: C13B20/165 C13K13/002

    摘要: The invention relates to a process of separating compounds with a small molar mass from compounds having a molar mass less than 1.9 times that of the compounds with a small molar mass using nanofiltration. The compounds with a small molar mass have a typical molar mass less than 250 g/mol. In one embodiment of the invention, pentose sugars are separated from hexose sugars. The invention can be applied to the recovery of xylose from spent liquors and to the recovery of betaine from sugar beet pulp extracts, for example.

    摘要翻译: 本发明涉及一种使用纳滤法从具有小摩尔质量的化合物的摩尔质量小于1.9倍的化合物分离具有小摩尔质量的化合物的方法。 具有小摩尔质量的化合物具有小于250g / mol的典型摩尔质量。 在本发明的一个实施方案中,戊糖与己糖分离。 本发明可以应用于例如从废液中回收木糖和从甜菜浆提取物中回收甜菜碱。