公开(公告)号：US06509461B2

公开(公告)日：2003-01-21

申请号：US09788116

申请日：2001-02-16

申请人： Hartwig Schlesiger ,  Martin Morning ,  Gunter Weber ,  René Kiesewetter ,  Rudolf Lelgemann

发明人： Hartwig Schlesiger ,  Martin Morning ,  Gunter Weber ,  René Kiesewetter ,  Rudolf Lelgemann

IPC分类号： C08B1100

CPC分类号： C08J3/12 ,  C08B11/20 ,  C08J2301/08 ,  C08L1/00

摘要： The present invention relates to a new, particularly economical process for producing particulate water-soluble cellulose derivatives. The process involves forming a feed composition of swollen and/or dissolved cellulose derivative, and water. The feed composition is contacted with a carrier and heat exchange gas, in a sieve-free high rotational speed gas jet impact mill, and the cellulose derivative of the feed composition is converted into a solid state form of finely particulate particles. The particulate cellulose derivative is then separated from the heat exchange gas and carrier gas, and optionally dried. The mill drying and the particulate cellulose derivative product are influenced by establishing a specific water content in the swollen and/or dissolved cellulose derivative.

摘要翻译： 本发明涉及用于生产颗粒状水溶性纤维素衍生物的新的，特别经济的方法。 该方法包括形成溶胀和/或溶解的纤维素衍生物和水的进料组合物。 在无筛的高转速气体冲击式研磨机中，将进料组合物与载体和热交换气体接触，并将进料组合物的纤维素衍生物转化成固态形式的细颗粒。 然后将颗粒状纤维素衍生物与热交换气体和载气分离，并任选地干燥。 研磨干燥和颗粒状纤维素衍生物产物受到溶胀和/或溶解的纤维素衍生物中特定含水量的影响。