STIDU ON MACHANOCHEMIAL EFFECT OF POWDERY QUARTZ IN DRY AND WET GRINDING

Powdery quartz with average particle size of10. 4 μm which is a natural weathered quartz were ground inplanetary ball mill. Variations of particle size distribution,specific surface area, crystal structure,facial amorphous andthermal character in dry grinding and wet grindding wereexamined against grinding time. The results displayed thatthe fine grinding causes the structural disorder,facial amor-phism and the facial activity enhancing accompained by par-ticle size reduction as grinding proceeds,and the wet grind-ing lowered notably “Grinding Limit”of the powdery quartzwith this planetary ball mill.

STUDY ON MACHANOCHEMICAL EFFECT OF POW- DERY QUARTZ IN DRY AND WET GRINDING

Powdery quartz with average particle size of 10. 4 um which is a natural weathered quartz "were ground in planetary ball mill. Variations of particle size distribution, specific surface area,crystal structure,facial amorphous and thermal character in dry grinding and wet grindding -were examined against grinding time. The results displayed that the fine grinding causes the structural disorder, facial amor-phism and the facial activity enhancing accompained by par-ticle size reduction as grinding proceeds > and the wet grind-ing lowered notably "Grinding Limit"of the powdery quartz with this planetary ball mill.