Mineral field
Polyacrylamide is used in mining, processing and tailings treatment of minerals such as coal, gold, silver, copper, iron, lead, zinc, aluminum, uranium, nickel, phosphorus, potassium, manganese, and salt. The main purpose is to improve solid-liquid separation. Efficiency and recovery; where in the coal industry, coal slurry and tailings settling and clarification, tailings filtration and solid-liquid separation during centrifugation; in gold or silver or copper mines, settling added to the thickener before the filter tank In the mineral solution with low pH value (less than 4), such as lead-zinc ore, it is used for sedimentation additives, etc.; in aluminum ore, when the sodium aluminate solution and red mud are separated, it is added during the washing process. An adjuvant to promote rapid sedimentation of red mud particles to obtain a clarified overflow that meets the requirements.
【Technical index】
Item |
Index | ||
| Non-ionic | Anionic | Cationic | |
| Appearance | White or slightly yellow powder | White or slightly yellow powder | White or slightly yellow powder |
| Solid content≥% | 89 | 89 | 89 |
| Molecular weight (10,000) | 800-1000 | 800-2200 | 800-1200 |
| Free monomer≤% | 0.5 | 0.5 | 0.5 |
| Water solubility (hours) | 1 | 1 | 1 |
| Charge Density% | ≤5 | 10-40 | 10-70 |
【Storage, transportation and precautions】 Polyacrylamide itself is not toxic. Only when the inhaled amount is greater than five thousandths, it is harmful because the absorption of nutrients by the gastrointestinal mucosa is blocked. Residual acrylamide monomers in water purification flocculants are toxic, and food applications should be strictly controlled. Storage and transportation should pay attention to moisture-proof.
【Package specification】Dry powder 25kg/bag, inner bag with PVC film, outer bag with kraft paper bag.
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