公开(公告)号：US10415183B2

公开(公告)日：2019-09-17

申请号：US14784457

申请日：2014-04-15

申请人： Metsä Fibre Oy

发明人： Ismo Reilama ,  Esko Turunen

IPC分类号： C08H8/00 ,  D21C9/08 ,  D21C9/00 ,  C08B16/00 ,  C08B37/00 ,  C08B37/14 ,  D21C3/00 ,  D21C3/20 ,  D01D1/02 ,  D01F2/02

摘要： A method of producing regenerated cellulose and hemicellulose from a fiber pulp which is prepared by using chemical cooking. Hemicellulose and, correspondingly, cellulose is separated from the pulp, in order to form separate fractions, by dissolving them in such a solvent or an aqueous solution of it, from which they are precipitated by adding water, after which the regenerated hemicellulose and cellulose can be recovered. Hemicellulose-containing pulp, which for example is used as raw material of paper, can be efficiently fractionated into polymeric hemicellulose-rich fractions and very pure cellulose fractions, such as regenerated cellulose fiber, various cellulose particles or cellulose films.

公开(公告)号：US20160032021A1

公开(公告)日：2016-02-04

申请号：US14784457

申请日：2014-04-15

申请人： METSÄ FIBRE OY

发明人： Ismo Reilama ,  Esko Turunen

IPC分类号： C08B16/00 ,  D21C9/00

CPC分类号： D21C9/08 ,  C08B16/00 ,  C08B37/0003 ,  C08B37/0057 ,  C08B37/14 ,  C08H8/00 ,  D01D1/02 ,  D01F2/02 ,  D21C3/00 ,  D21C3/20 ,  D21C9/00

摘要： A method of producing regenerated cellulose and hemicellulose from a fibre pulp which is prepared by using chemical cooking. Hemicellulose and, correspondingly, cellulose is separated from the pulp, in order to form separate fractions, by dissolving them in such a solvent or an aqueous solution of it, from which they are precipitated by adding water, after which the regenerated hemicellulose and cellulose can be recovered. Hemicellulose-containing pulp, which for example is used as raw material of paper, can be efficiently fractionated into polymeric hemicellulose-rich fractions and very pure cellulose fractions, such as regenerated cellulose fibre, various cellulose particles or cellulose films.

摘要翻译： 由使用化学烹调制备的纤维纸浆生产再生纤维素和半纤维素的方法。 通过将半纤维素和相应的纤维素从纸浆中分离出来，通过将它们溶解在它们的溶剂或其水溶液中形成分离的级分，通过加入水使它们沉淀，之后再生的半纤维素和纤维素可以 被收回。 例如用作纸的原料的含半纤维素的纸浆可以有效地分级成聚合的富含半纤维素的级分和非常纯的纤维素级分，例如再生纤维素纤维，各种纤维素颗粒或纤维素膜。