GLASS MATERIAL FOR TREATING HARD SURFACES, COMPRISING PARTICLES OF BROKEN GLASS, AND A PROCESS FOR MAKING SAID PARTICLES

摘要

11 The glass material is an abrasive material and comprises substantially particles of broken glass having sizes selected with mesh sieve sizes of grade 4 to grade 200. The process for making particles of broken glass material comprises steps of (a) burning recycled glass material to eliminate unwanted material; (b) screening coarsely glass material obtained from step (a); (c) submitting glass material obtained from step (b) to an electromagnet to remove unwanted metal pieces; (d) grinding glass material obtained from step (c) to produce broken glass material; and (e) sifting the broken glass material obtained from step (d) to produce the particles of broken glass, the particles having sizes of grade 4 to grade 200, whereby the particles of broken glass can be used for treating hard surfaces.