Overview
This case presents laboratory test results for two separate quartz samples submitted by FOSHAN POWTECH / PTMS. Each sample was tested before magnetic separation and again after one pass through a magnet. The analyses were carried out by an independent third-party laboratory, and the laboratory test was reported in 2020.
The two groups come from two different quartz samples. Each "after" result should be read only against its own "before" result.
Test results
The laboratory measured SiO₂, Fe₂O₃ and whiteness (1200°C). Values are shown exactly as reported.
Group 1
| Item | Sample 1-A (before magnetic separation) | Sample 1-B (after one pass through a magnet) |
|---|---|---|
| SiO₂ | 94.49% | 98.60% |
| Fe₂O₃ | 0.080% | 0.036% |
| Whiteness (1200°C) | 85.3 | 93.2 |
Group 2
| Item | Sample 2-A (before magnetic separation) | Sample 2-B (after one pass through a magnet) |
|---|---|---|
| SiO₂ | 98.33% | 99.01% |
| Fe₂O₃ | 0.12% | 0.029% |
| Whiteness (1200°C) | 86.9 | 93.7 |
Notes on the results
The original laboratory report does not specify the particle size or the magnetic-separation conditions. The results are for reference only and are subject to a laboratory test on the customer's own sample.
Laboratory test results are not a guarantee of industrial-plant performance. Customers are welcome to send 5–10 kg for a free laboratory test; a report is issued within 5 days of sample receipt.
Test your own quartz
Every ore behaves differently. Send FOSHAN POWTECH / PTMS a 5–10 kg sample of your quartz for a free laboratory test, and we will share the before-and-after results with you.
FARRALI