A new pigment disperser for high solids paper coating colors

被引：7

作者：

Duquesnoy, JA

Tanguy, PA

Thibault, F

Leuliet, JC

机构：

[1] ECOLE POLYTECH,DEPT CHEM ENGN,NSERC,PAPRICAN IND CHAIR,MONTREAL,PQ H3C 3A7,CANADA

[2] INRA,LGPTA,F-59651 VILLENEUVE DASCQ,FRANCE

来源：

CHEMICAL ENGINEERING & TECHNOLOGY | 1997年 / 20卷 / 06期

关键词：

D O I：

10.1002/ceat.270200611

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In paper coating make-down, a poor dispersion of pigments in coating colors may lead to coater runnability problems. This is manifested bt coat defects at the paper surface excessive coater blade wear, and an over-consumption of pigments. For this reason, high shear impellers operated at high speed are used, yielding a high energy consumption. A new method to disperse high solids mix at low energy consumption is presented. This method based on the use of a rod impeller scraping the fluid surface in the vessel, is tested on a slurry composed of calcined and delaminated clays up to a solids content of 66.7 wt.% without dispersing aids.

引用

页码：424 / 428

页数：5