公开(公告)号：US20170158522A1

公开(公告)日：2017-06-08

申请号：US14960129

申请日：2015-12-04

Applicant: Ecolab USA Inc.

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

IPC: C01F7/46 ,  C08J3/24 ,  B01D21/01

CPC classification number: C01F7/46 ,  B01D21/01 ,  C01F7/0653 ,  C01F7/145 ,  C01F7/148 ,  C01F7/47 ,  C08F230/06 ,  C08J3/246 ,  C08J2305/02 ,  C08J2343/00 ,  C08J2405/02 ,  C08J2443/00 ,  C08F220/56 ,  C08F220/06

Abstract: 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.