Amorphous silica particles and methods of producing amorphous silica particles

Abstract

An amorphous silica particles, gravel, other particles and products provide a safe replacement for crystalline silica sand, grave, or particles in consumer and industrial applications wherein dust may be produced during use or installation. The amorphous silica particles, gravel, other particles or products may comprise components that increase the density, hardness, and other properties from container glass. These components include, but are not limited to, iron oxides, aluminum oxides, and zirconium oxides.

1 . An abrasive blasting media, comprising:
 silicon oxide in the range of 50 wt. % to 75 wt. %;   iron oxides in the range of 20 wt. % to 45 wt. %; and   fluxing compounds in the range of 0 to 25 wt. %.   
     
     
         2 . The abrasive blasting media of  claim 1 , comprising
 aluminum oxides In the range of 0.5 wt. % to 10 wt. %.   
     
     
         3 . The abrasive blasting media of  claim 1 , comprising
 zirconium oxides in the range of 0.5 wt. % to 10 wt. %.   
     
     
         4 . The abrasive blasting media of  claim 1 , wherein the fluxing compounds are selected from the group comprising sodium oxides, calcium oxides, magnesium oxides, potassium oxides, lithium oxides, boric oxides, and combinations thereof. 
     
     
         5 . The abrasive blasting media of  claim 1 , wherein the ratio of Si to Fe in the abrasive blasting media is in the range of 3:4 to 4:1. 
     
     
         6 . The abrasive blasting media of  claim 1 , wherein the ratio of Si to Fe in the abrasive blasting media is in the range of 3:4 to 3:1. 
     
     
         7 . The abrasive blasting media of  claim 1 , wherein the iron oxides are in the range of 20 wt. % to 45 wt. %. 
     
     
         8 . The abrasive blasting media of  claim 1 , wherein the iron oxides are in the range of 20 wt. % to 30 wt. %. 
     
     
         9 . The abrasive blasting media of  claim 8 , wherein the fluxing compounds comprise sodium oxide and are in the range of 2 wt. % to 10 wt. % of the abrasive blasting media. 
     
     
         10 . An abrasive blasting media, consisting essentially of:
 silicon oxide in the range of 50 wt. % to 80 wt. %;   iron oxides in the range of 18 wt. % to 40 wt. %; and   fluxing compounds In the range of 1 wt. % to 10 wt. %.   
     
     
         11 . The abrasive blasting media of  claim 1 , wherein the fluxing compounds are selected from the group comprising sodium oxides, calcium oxides, magnesium oxides, potassium oxides, lithium oxides, boric oxides, and combinations thereof. 
     
     
         12 . The abrasive blasting media of  claim 10 , wherein the iron oxides are in the range of 18 wt. % to 30 wt. % and the silicon oxides are in the range of 55 wt. % to 80 wt. %. 
     
     
         13  An abrasive blasting media, consisting essentially of:
 silicon oxide in the range of 50 wt. % to 70 wt. %; 
 iron oxides in the range of 18 wt. % to 30 wt. %; 
 a combination of aluminum oxides and zirconium oxides In the range of 3 wt. % to 15 wt. %; and 
 fluxing compounds in the range of 1 wt. % to 14 wt. %. 
 
     
     
         14 . The abrasive blasting media of  claim 13 , wherein a combination of aluminum oxides and zirconium oxides in the range of 4 wt. % to 11 wt. %. 
     
     
         15 . The abrasive blasting abrasive of  claim 14 , wherein the abrasive blasting abrasive has a Knoop hardness greater than 630. 
     
     
         16 . The abrasive blasting abrasive of  claim 14 , wherein the abrasive blasting abrasive has a Knoop hardness greater than 650. 
     
     
         17 . The abrasive blasting abrasive of  claim 14 , wherein the abrasive blasting are particles having a particle size range wherein greater than 80% of the particles are in a size range from 425 microns to 2000 microns. 
     
     
         18 . The abrasive blasting abrasive of  claim 14 , wherein the abrasive blasting abrasive has a density greater than 2.8 and less than 3.5. 
     
     
         19 . The abrasive blasting media of  claim 14 , wherein the zirconium is less than 3 wt. %. 
     
     
         20 .- 75 . (canceled)