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1. 发明申请

WO2015097445A1 A METHOD FOR TREATING CELLULOSIC MATERIAL 审中-公开
标题翻译：一种处理细胞材料的方法
公开(公告)号：WO2015097445A1
公开(公告)日：2015-07-02
申请号：PCT/GB2014/053752
申请日：2014-12-18
申请人： WEYLAND AS , DE BRESSER, Sara
发明人： EINEN, Jørn , AMUNDSEN, Line , DUSTAN, Andrew , EYAL, Aharon
IPC分类号： C07H1/08 , C13K1/02 , C12P7/10
CPC分类号： C07H1/08 , C12P2203/00 , C13K1/02 , Y02E50/16
摘要： The present invention provides a method comprising: (i) contacting a cellulose-comprising input material with an aqueous hydrolyzing solution comprising at least 35%wt. of at least one mineral acid to form a hydrolyzate comprising a mixture of water-soluble carbohydrates and optionally a solid fraction; (ii) contacting said hydrolyzate with an extractant comprising a first solvent S1, to form a first (preferably solid) residue (preferably comprising precipitated carbohydrates, e.g. mono-, di- and/or oligo-saccharides) and an acid-comprising extract; (iii) separating said acid-comprising extract from said first residue; (iv) modifying said acid-comprising extract to form a second (preferably liquid) residue (preferably comprising dissolved carbohydrates) and an acid-comprising modified extract; (v) fractionating said modified extract into an S1 -enriched fraction and an acid- enriched fraction; (vi) reusing said SI - enriched fraction to form said extractant; and (vii) reusing said acid-enriched fraction to form said aqueous hydrolyzing solution; wherein (a) at least 10%wt. of the cellulose is hydrolyzed and said mixture of water- soluble carbohydrates comprises monosaccharides, disaccharides and/or oligosaccharides; (b) SI forms a single phase when mixed with an identical weight of 70% sulfuric acid aqueous solution at 25°C; (c) S1 comprises at least 65%wt. of said extractant; and (d) said acid-comprising extract comprises at least 60 %wt. of the acid and at least 5%wt. of the carbohydrates in said hydrolyzate.
摘要翻译：本发明提供了一种方法，其包括：（i）使包含纤维素的输入材料与包含至少35重量％的至少一种无机酸形成包含水溶性碳水化合物和任选的固体部分的混合物的水解产物; （ii）使所述水解产物与包含第一溶剂S1的萃取剂接触以形成第一（优选固体）残留物（优选包括沉淀的碳水化合物，例如单糖，二糖和/或寡糖）和含酸的提取物; （iii）从所述第一残余物分离所述含酸提取物; （iv）修饰所述含酸提取物以形成第二（优选液体）残留物（优选包含溶解的碳水化合物）和含酸的改性提取物; （v）将所述修饰的提取物分馏成富含S1的馏分和富含酸的级分; （vi）重新使用所述富SI馏分形成所述萃取剂; 和（vii）重新使用所述富酸级分以形成所述水性水解溶液; 其中（a）至少10重量％的纤维素水解，所述水溶性碳水化合物的混合物包括单糖，二糖和/或寡糖; （b）当与相同重量的70％硫酸水溶液在25℃下混合时，SI形成单相; （c）S1包含至少65重量％的所述萃取剂; 和（d）所述含酸提取物包含至少60重量％的酸和至少5重量％的所述水解产物中的碳水化合物。

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