Abstract
ABSTRACT Effect of disagglomeration with different type of mill on recovery of abrasives was investigated. To evaluate an effect of disagglomeration on recovery of abrasive from waste sludge, disagglomerated waste sludge by different mills were air classified and yield of fine particles product were calculated. The results suggested that pin mill and jet mill are effective for disagglomeration of waste sludge. Pumice, garnet and rouge powders were easily recovered by air classification after disagglomeration by pin mill for the recycling of them as a abrasive powders in polishing procedure of CRT glass. Comparing to raw abrasive powders, shapes and mineralogical properties were very similar to those of new ones. These results suggest that the recycled abrasive powders can be used as an abrasive powders.
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