anionic polyacrylamide powder
1. Brief introduction
Solid product appearance is white or slightly yellow powder, the liquid is a colorless viscous, easy soluble in water, decomposes when temperature exceeds 120 °C. There is a positive group (-CONH2) in polyacrylamide molecules which can be adsorptive with the suspended particles in the solution, it has strong flocculation.
2. Use of anionic polyacrylamide powder:
(1) Industrial waste water treatment:
For the neutral or alkaline waste water with pH value of 7-14, large suspended particles and ions of positive charge, it has the best treating effect, such as the waste water from iron industry, electroplating factory, metallurgical industry, coal washing, etc..
(2) Drinking water treatment:
When the drinking water still does not meet the standard after the treatment of the precipitation and filtering, then the APAM can be used as the flocculant. Its dosage is 2%-5% of that of the inorganic flocculants, but the effect of former is dozens of times of that of latter.
(3) It can be used for the recycling of the loss of brewers' grains in the alcohol plant and starch in the starch factory.
(4) It can be used as the water block agent in the oil field, and also the oil-displacing agent during the tertiary recovery.
(5) It can be applied in the paper-making industry. It can be used as the dispersant, retention aid, etc. in the long fiber paper-making, and also the flocculant for the waste water from the paper-making.
3.chemical specification of anionic polyacrylamide
The PAM quality index of the anion type | The PAM quality index of the cation type | ||
Index name | Index | Index name | Index |
Solid content% | ≥90 | Solid content% | ≥90 |
Molecular weight M | 5-22 | Molecular weight M | 8-13 |
Hydrolysis degree | 10-50 | water-insoluble substance% | ≤2 |
water-insoluble substance% | ≤2 | Ion degree | ≤1 |
Residual monomer (%) | ≤0.05 | Residual monomer (%) | ≤0.05 |
PH | 4-8 | PH | 1-8 |
Water dissolves time H | 1-2 | Water dissolves time minute | 40-60 |
anionic polyacrylamide powder