公开(公告)号：US20190084837A1

公开(公告)日：2019-03-21

申请号：US16134072

申请日：2018-09-18

Applicant: Cytec Industries Inc.

Inventor： Airong SONG ,  Qi DAI ,  Lino MAGLIOCCO ,  Raymond Salvatore FARINATO ,  Xin LI

IPC: C01F7/06 ,  C08F228/02 ,  C08F222/02 ,  B02C23/06

Abstract: Bauxite grinding compositions that can significantly reduce the viscosity of bauxite slurry, which allow alumina refinery plants to increase throughput of bauxite grinding or pre-desilication. Described are processes to improve the grinding of a bauxite containing slurry in a Bayer process comprising: adding an effective amount of a bauxite grinding composition to the bauxite containing slurry before or during the grinding step or pre-desilication step, wherein the bauxite grinding composition comprises dextran, maltitol or a co-polymer.