NPAM for Mineral Processing
Nonionic polyacrylamide works in acidic environments where anionic and cationic types lose effectiveness. Ideal for gold, copper, and iron ore processing where pH drops below neutral. Also widely used in coal washing plants for fine coal recovery.
Specifications
| Type | Nonionic |
| Molecular Weight | 5–10 million Da |
| Ionicity | 0-3% |
| Solid Content | ≥90% |
| Dissolving Time | ≤90 min |
| Residual Monomer | ≤0.05% |
| Effective pH | 4.0–8.0 |
| Packaging | 25 kg PP woven bags + Kraft paper |
Key Features
- Effective in acidic conditions (pH 4–8)
- High fine coal recovery rate >90%
- No charge interference with mineral surfaces
- Suitable for soil stabilization
Applications
- Gold & copper ore processing
- Coal washing — fine coal recovery
- Acid mine drainage treatment
- Soil stabilization
Brand Equivalents & Replacements
Our NPAM for Mineral Processing is a tested replacement for these international brands. Free samples available for side-by-side comparison.
| Brand | Grade | Notes |
|---|---|---|
| SNF | FLOPAM AN 910 PWG | Used in gold CIL circuits |
| BASF | Rheomax ETD | Mineral processing grade equivalent |
Need a replacement for a different grade? Contact us with your current product specs.
Dosage Guide
5–20 ppm for mineral slurry; 2–5 ppm for coal fines.
Frequently Asked Questions — NPAM for Mineral Processing
Why nonionic instead of anionic for gold mining?
Gold CIL/CIP circuits operate at pH 10–11 with activated carbon. Anionic PAM can adsorb onto carbon and reduce gold recovery. Nonionic PAM has minimal carbon interference, protecting leach efficiency.
What about acidic tailings?
At pH 4–6, anionic PAM loses charge and becomes ineffective. Nonionic PAM maintains flocculation ability down to pH 4.0, making it the only option for acid mine drainage and acid leach tailings.
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