WET MILLING OF ALUMINA AND PREPARATION OF SLURRIES FOR MONOLITHIC STRUCTURES IMPREGNATION

被引:44
作者
BLACHOU, V [1 ]
GOULA, D [1 ]
PHILIPPOPOULOS, C [1 ]
机构
[1] NATL TECH UNIV ATHENS,DEPT CHEM ENGN,CHEM PROC ENGN LAB,GR-15773 ATHENS,GREECE
关键词
D O I
10.1021/ie00001a049
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
The wet grinding of alumina with HCl for forming stable dispersions was investigated in a laboratory ball mill. Acid concentrations in the range 1-10 wt % of dry alumina do not influence the wet-milling product. The viscosity of the alumina slurries produced from the wet-milling process is strongly dependent on pH while minimum viscosity was achieved at pH 3.5-3.8. Impregnation of ceramic monolithic substrates with alumina dispersions of varying particle size distributions affects the pore volume distribution of the alumina coating in the intermediate pore radius region.
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收藏
页码:364 / 369
页数:6
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