Calcined Diatomaceous Earth
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Apart from non-calcined diatomaceous earth, Xinghui also offers calcined DE. Through high temperature calcination, the calcined diatomaceous earth features obviously improved heat resistance as compared with the natural one. It can be used in a temperature range of 1000~1200℃. As the base material of other heat insulation materials and refractories, it is also used for filling the heat insulting layers and making building mortars.
We supply two type of calcined diatomaceous earth for you. One is common type and another is that with high SiO2 content. The latter one comes with lower volume density while providing much higher heat resistance than the common one.
Specifications
| Type | Common type | High SiO2 type | ||||
| Volume density (g/cm3) | 0.6 | 0.7 | 0.8 | 0.4 | 0.5 | 0.6 |
| Service temperature ( ℃ ) | 1000 | 1200 | ||||
| Granularity (mm) | ＜ 1.5 | |||||
| SiO2 content % | ≥70 | ≥80 | ||||
| Fe2O3 content % | ≤ 6.0 | ≤ 4.0 | ||||
| Al2O3 content % | ≤ 15 | ≤ 10 | ||||
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