Peter E. Pierini;Michael Schreck;Marco Grossstueck;Juergen Hermanns;Yvonne M. Goerlach-Doht
发明人:
Yvonne M. Goerlach-Doht,Juergen Hermanns,Peter E. Pierini,Marco Grossstueck,Michael Schreck
申请号：
US14009442
公开号：
US09334416B2
申请日:
2012.03.29
申请国别(地区):
US
年份:
2016
代理人:
摘要：
A particulate cellulose derivative is obtained in a process of grinding and drying a moist cellulose derivative which comprises the steps of A) providing a cellulose derivative having a moisture content of from 60 to 95 percent, based on the total weight of the moist cellulose derivative, B) grinding and partially drying the moist cellulose derivative in a gas-swept impact mill； and C) contacting the ground and partially dried cellulose derivative with an additional amount of a drying gas outside the gas-swept impact mill. The obtained particulate cellulose derivative has a high untapped bulk density and a good flowability.
