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Milled Zircon
Our dry milled zircon is widely used in
a number of industries which include:
Investment Casting Frit & Color Pigments
Chemicals Refractory Coatings
Electronics Foundry Coatings
Friction Products
Continental Mineral has specialized in dry milled zircon for over a half century. Our state of the art equipment and commitment to continuous improvement have established us as the standard of industry. We produce standard products such as 200, 325, 400 and 600 mesh milled zircon. For customers that have custom particle size specifications, we are fully equipped to meet your desired specifications.
We also market and package granular zircon to complete our wide range of zircon products.
Properties of Continental Mineral Processing Milled Zircon (ZrSiO4)
| Typical Chemical Analysis (in weight %) |
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| Calcined |
Uncalcined |
|
| *ZrO2 Zirconium Oxide |
65% Min. |
65% Min. |
| SiO2 Silicon Dioxide |
32.5% Typ. |
32.5% Typ. |
| Al2O3 Aluminum Oxide |
2.0% Max. |
0.7% Max. |
| TiO2 Titanium Dioxide |
0.35% Max. |
0.2% Max. |
| Fe2O3 Iron Oxide |
0.054% Max. |
0.1% Max. |
| U & Th Uranium & Thorium |
475 Max. |
475 Max. |
| * - Includes 1-4% HfO2 |
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| Typical Physical Properties |
|
| Melting Point |
Greater than 40000 |
| Coefficient of Thermal Expansion |
4.2 x 10-6cm/cm/0C |
| Hardness |
7.5 Moh’s Scale |
| Thermal Conductivity |
14.5 BTU/sq. ft./hr./0F/in. |
| Index of Refraction |
2.0 |
| Thermal Stability |
No change to 30900F(17000C) |
| Average Particle Size |
|
| 200 Mesh |
26 – 29 Microns |
| 325 Mesh |
17 – 20 Microns |
| 400 Mesh |
14 – 16 Microns |
| 600 Mesh |
10 – 12 Microns |
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