MANUFACTURING OF NITROGEN-CONTAINING MATERIALS
    1.
    发明申请
    MANUFACTURING OF NITROGEN-CONTAINING MATERIALS 审中-公开
    含氮材料的制造

    公开(公告)号:US20150321967A1

    公开(公告)日:2015-11-12

    申请号:US14412662

    申请日:2013-07-03

    IPC分类号: C05C11/00 C05C3/00

    摘要: It has been discovered that waste cross-linked polymer materials both synthetic (scrap tire rubber, used polyurethane, and epoxy and phenol resins in discarded printed circuit boards) and natural (wood biomass, keratin, and chitin) can be conveniently depolymerized at slightly elevated temperatures and moderate pressures by the action of a liquid chemical reagent. The proposed inexpensive process results in a substantial to total depolymerization of synthetic polymers and thereby recovers valuable liquid and solid materials. When applied to lignocellulosic biomass, the proposed process, depending on the reaction conditions, either unlocks the lignin-hemicellulose matrix making cellulose more available for fermenting microorganisms or results in carbonization, or coalification of the biomass that may be desirable in terms of sequestering excessive carbon from the Earth's biosphere.

    摘要翻译: 已经发现,合成废旧交联聚合物材料(废旧轮胎橡胶,用过的聚氨酯,废弃印刷电路板中的环氧树脂和酚醛树脂)和天然(木材生物质,角蛋白和壳多糖)可以在略高的 温度和中等压力通过液体化学试剂的作用。 所提出的廉价方法导致合成聚合物的大量全部解聚,从而回收有价值的液体和固体材料。 当应用于木质纤维素生物质时,所提出的方法取决于反应条件,可解开制备纤维素的木质素 - 半纤维素基质,使纤维素更可用于发酵微生物或导致碳化,或生物质的煤化,这在隔离过量碳方面是可取的 从地球的生物圈。