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    • 1. 发明申请
    • METHOD OF DIGESTING LIGNOCELLULOSIC MATERIAL
    • 消化液体材料的方法
    • WO2013119977A1
    • 2013-08-15
    • PCT/US2013/025379
    • 2013-02-08
    • BASF SE
    • DUROCHER, DavidFRIEL, Thomas, C.ZACK, Kenneth, L.
    • C08H8/00D21C3/22B01F17/00D21C3/02
    • D21C5/00C08H8/00D21C3/02D21C3/222D21C3/24
    • A method of digesting lignocellulosic material includes the steps of providing the lignocellulosic material and a caustic composition having a pH of at least about 10. The caustic composition includes water, an alkaline- or alkaline earth- metal hydroxide, and up to about 1 percent by weight based on a total weight of the composition of a branched digestion additive. The branched digestion additive has the structure: wherein A is at least one alkyleneoxy group and each alkyleneoxy group has from 2 to 4 carbon atoms, n is 0 or 1, B is a branched aliphatic hydrocarbon group having from 8 to 15 carbon atoms, X is H or B-0-(A) m , and each m is independently an average value from 3 to 30, and wherein the caustic composition has a Draves Wetting Time of less than 100 seconds as determined using ASTM D2281.
    • 一种消化木质纤维素材料的方法包括提供木质纤维素材料和pH至少约10的苛性组合物的步骤。苛性组合物包括水,碱金属或碱土金属氢氧化物,最高约1% 基于支化消化添加剂组合物的总重量的重量。 支链消化添加剂具有以下结构:其中A是至少一个亚烷基氧基,每个亚烷基氧基具有2至4个碳原子,n是0或1,B是具有8至15个碳原子的支链脂族烃基,X 是H或B-O-(A)m,并且每个m独立地为3至30的平均值,并且其中所述苛性组合物具有小于100秒的Draves润湿时间,使用ASTM D2281测定。