公开(公告)号：EP3383797A1

公开(公告)日：2018-10-10

申请号：EP16871571.2

申请日：2016-12-02

申请人： Ecolab USA Inc.

发明人： WANG, Jing ,  O'BRIEN, Kevin ,  WEI, Mingli ,  CHENG, Weiguo ,  WANG, Jinfeng ,  MCDONALD, Kevin ,  HUANG, Xinyu C.

IPC分类号： C01F7/47 ,  C01F7/14 ,  B01D37/03 ,  B01D21/01 ,  C08L5/00 ,  C08L43/00

CPC分类号： C01F7/46 ,  B01D21/01 ,  C01F7/0653 ,  C08F230/06 ,  C08J3/246 ,  C08J2305/02 ,  C08J2343/00 ,  C08J2405/02 ,  C08J2443/00 ,  C08F220/56 ,  C08F220/06

摘要： Methods and compositions for improving performance of flocculants in an industrial production process. Methods include pH triggered cross-linking reaction between a flocculating agent, such as dextran, and a composition comprising a boronic acid-containing polymer. The pH trigger can be provided by a fluid having a pH of 8 or more. The production process can be a Bayer Process and the fluid is caustic liquor or slurry in the fluid circuit of the Bayer, wherein the reaction time is reduced over conventional methods and the cross-linked dextran composition effectuates improved flocculation of the trihydrate particles.