Overview
This case presents two separate laboratory chemical analyses of silica sand, tested for FOSHAN POWTECH / PTMS and reported in 2026. One report is labelled on the original record as silica sand by wet processing. The other is labelled as silica sand after iron removal (second pass), by dry processing.
These are two independent laboratory reports, not a before-and-after pair for the same sample. They have different record dates and should not be treated as a before-and-after result for the same feed, or used to compare wet processing with dry processing as if they used the same sample.
Values are shown exactly as reported. The original reports measured only SiO₂ and Fe₂O₃. They do not specify the equipment or further process conditions beyond the wet-processing and dry-processing labels quoted above.
Test results
Silica sand, wet processing
As labelled on the original report (“BY WET PROCESSING”). Granular sample, about 190 g submitted. Method JC/T 753-2022. Laboratory record, 2026.
Laboratory sample bag for the wet-processing analysis.
| Item | Result |
|---|---|
| SiO₂ | 99.45% |
| Fe₂O₃ | 0.013% |
Silica sand, dry processing, after a second iron-removal pass
As labelled on the original report (“by dry processing”; iron removal, second pass). Granular sample, about 200 g submitted. Method JC/T 753-2022. Laboratory record, 2026.
Laboratory sample bag for the dry-processing analysis (second iron-removal pass). This is a separate sample from the wet-processing bag above, not a before-and-after pair.
| Item | Result |
|---|---|
| SiO₂ | 98.86% |
| Fe₂O₃ | 0.019% |
Notes on the results
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.
A desensitized English transcription of these two results tables is available as a PDF. It is not the original issued report.
Test your own silica sand
Every ore behaves differently. Send FOSHAN POWTECH / PTMS a 5–10 kg sample of your silica sand for a free laboratory test, and we will share the results with you.
FARRALI