METHODS FOR INTEGRATING THE PRODUCTION OF CELLULOSE NANOFIBRILS WITH THE PRODUCTION OF CELLULOSE NANOCRYSTALS
    1.
    发明申请
    METHODS FOR INTEGRATING THE PRODUCTION OF CELLULOSE NANOFIBRILS WITH THE PRODUCTION OF CELLULOSE NANOCRYSTALS 有权
    用于生产纤维素纳米微粒的方法用于生产纤维素纳米微粒

    公开(公告)号:US20130303750A1

    公开(公告)日:2013-11-14

    申请号:US13472137

    申请日:2012-05-15

    摘要: Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs.

    摘要翻译: 提供了从纤维素制备纤维素纳米晶体(CNC)和纤维素纳米纤维(CNF)的生产方法。 该方法使用比最大CNC生产更温和的酸水解条件,以实现纤维素降解成可溶性糖。 还提供了在酸水解期间纤维素纤维(CF)和/或纤维素微原纤维(CMF)形式的带负电荷的纤维素固体残余物(CSR)以及由CSR制造的CNF。

    Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals
    2.
    发明授权
    Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals 有权
    将纤维素纳米纤维的生产与纤维素纳米晶体的生产相结合的方法

    公开(公告)号:US08710213B2

    公开(公告)日:2014-04-29

    申请号:US13472137

    申请日:2012-05-15

    IPC分类号: C08B15/00 C08B5/14 C08B5/00

    摘要: Methods for integrating the production of cellulose nanocrystals (CNC) and cellulose nanofibrils (CNF) from cellulose are provided. The methods use milder acid hydrolysis conditions than those for maximal CNC production to achieve reduced degradation of cellulose into soluble sugars. Also provided are negatively charged cellulosic solid residues (CSRs) in the form of cellulose fibers (CF) and/or cellulose microfibrils (CMF) during the acid hydrolysis, as well as CNFs fabricated from the CSRs.

    摘要翻译: 提供了从纤维素制备纤维素纳米晶体(CNC)和纤维素纳米纤维(CNF)的生产方法。 该方法使用比最大CNC生产更温和的酸水解条件,以实现纤维素降解成可溶性糖。 还提供了在酸水解期间纤维素纤维(CF)和/或纤维素微原纤维(CMF)形式的带负电荷的纤维素固体残余物(CSR)以及由CSR制造的CNF。

    Oxidation of lignin and polysaccharides mediated by polyoxometalate
treatment of wood pulp
    3.
    发明授权
    Oxidation of lignin and polysaccharides mediated by polyoxometalate treatment of wood pulp 失效
    通过多金属氧酸盐处理木浆介导的木质素和多糖的氧化

    公开(公告)号:US5549789A

    公开(公告)日:1996-08-27

    申请号:US224449

    申请日:1994-04-07

    CPC分类号: D21C9/1063 D21C9/1057

    摘要: A method for oxidative degradation of lignin and polysaccharide fragments dissolved during polyoxometalate delignification or bleaching of wood pulp, wood fiber or pulp obtained from a non-woody plant. The method comprises the steps of obtaining a spent polyoxometalate bleaching solution containing a polyoxometalate of the formula [V.sub.l Mo.sub.m W.sub.n Nb.sub.o Ta.sub.p (TM).sub.q X.sub.r O.sub.s ].sup.x- where 1 is 0-18, m is 0-40, n is 0-40, o is 0-10, p is 0-10, q is 0-9, r is 0-6, TM is a d-electron-containing transition metal ion, and X is a heteroatom which is p or d block element, provided that l+m+n+o+p.gtoreq.4, l+m+q>0 and s is sufficiently large that x>0, and heating the solution in the presence of an oxidant under conditions wherein the dissolved organic compounds are oxidatively degraded to volatile organic compounds and water.

    摘要翻译: 一种木质素和多糖片段的氧化降解方法,其在多金属氧酸盐脱木质素或从非木本植物获得的木浆,木纤维或纸浆的漂白中溶解。 该方法包括以下步骤:获得含有式[VlMomWnNboTap TM qXrO] x-的多金属氧酸盐的废多金属氧酸盐漂白溶液,其中1为0-18,m为0-40,n为0-40,o为0- 10,p为0-10,q为0-9,r为0-6,TM为含d电子的过渡金属离子,X为p或d为杂原子的嵌段元素,条件是l + m + n + o + p> / = 4,1 + m + q> 0,s足够大,使x> 0,并且在氧化剂存在下加热溶液,其中溶解的有机化合物氧化降解为挥发性 有机化合物和水。