公开(公告)号：US10889654B2

公开(公告)日：2021-01-12

申请号：US15027366

申请日：2014-10-08

申请人： SOLVAY ACETOW GmbH

发明人： Andreas Hummel ,  Hans-Juergen Ehret

IPC分类号： C08B3/06 ,  C08B31/04 ,  C08B37/00 ,  C02F1/44 ,  C07C51/487 ,  C08B3/28 ,  C02F101/30 ,  C02F103/28

摘要： The invention concerns a process for the manufacture of an acylated polysaccharide which comprises. (a) reacting a polysaccharide with an acylating agent to produce an acylated polysaccharide and (b) washing the acylated polysaccharide with water containing from 0.05 to 15 mg/l Ca2+-ions (c) recovering the washed acylated polysaccharide and an aqueous phase containing carboxylic acid from step (b).