Product Series
Non-ionic polyacrylamide (NPAM)
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Keywords: billion groups of environmental protection
Category: Products
Product Details
Product Description:
Non-ionic polyacrylamide (NPAM) is a water-soluble high molecular weight low ionic linear polymer. Non-ionic polyacrylamide (NPAM) has a very obvious effect on accelerating the clarification of the solution and promoting filtration. Non-ionic polyacrylamide (NPAM) is widely used in coal mine washing, textile industry auxiliaries, weak acid sewage treatment, metallurgical beneficiation, chemical grouting agent, soil humectant, etc.
Product indicators:
| Project | Unit | Indicators |
| Appearance | -- | White particles |
| molecular weight | million | 300-1500 |
| ion degree | % | ≦ 3 |
| water insoluble matter | % | ≦ 0.1 |
| Granularity | mm | 0.2-0.8 |
| Dissolution time | Hours | ≦ 1.5 |
| Residual monomer | % | ≦ 0.1 |
| Project | Unit | Indicators |
| Appearance | -- | White particles |
| molecular weight | million | 300-1500 |
| ion degree | % | ≦ 3 |
| water insoluble matter | % | ≦ 0.1 |
| Granularity | mm | 0.2-0.8 |
| Dissolution time | Hours | ≦ 1.5 |
| Residual monomer | % | ≦ 0.1 |
Specific use:
1, coal mine washing; can be used for washing coal tailings centrifugal sharing, used in the precipitation and filtration of pulverized coal and coal slime, can improve the recovery rate of pulverized coal and improve the filtration rate, and improve the water circulation rate.
2, textile auxiliaries; add some other chemicals can be formulated into chemical pulp, used for textile sizing, can improve the adhesion, permeability and the performance of the pulp, so that the fabric has a spinning electrostatic, reduce the sizing rate, reduce the stranded pulp spot, cloth machine breakage rate and fall.
3, sewage treatment; when the sewage system is acidic, the selection of non-ionic polyacrylamide is more suitable, and inorganic flocculant poly aluminum, aluminum sulfate and other use, in water treatment effect is better.
4, metallurgical beneficiation; such as zinc, manganese, copper ore flotation and smelting, the leachate and residue can be into PAM, improve the efficiency of sharing.
5. Sand prevention and sand fixation; The non-ionic polyacrylamide is dissolved into 0.3% concentration and added with crosslinking agent, which can be sprayed on the desert to prevent sand and fix sand.
6. Chemical grouting agent; 9.5 parts of non-ionic polyacrylamide plus 0.5 parts of NN-methylene bisacrylamide can be used as a chemical grouting agent for water plugging in dams, foundations, tunnels, etc.
7. Soil humectant; Water retention and sand fixation in soil. Slope grass, tree planting, sand and dust can play the role of moisturizing agent.
Method of use:
1. When polyacrylamide (PAM) is used, it should be prepared into an aqueous solution with a concentration of 0.01-0.05, and it is advisable to use neutral water without salt impurities.
2. When polyacrylamide (PAM) is dissolved, the non-ionic polyacrylamide product is evenly sprinkled into the stirred water, and the stirring speed is controlled at 100~300rpm. Appropriate heating (<60 ℃) can accelerate dissolution.
3. Adjust the PH value of the treated liquid to make the non-ionic polyacrylamide product fully play its role, and select the best PH value and the dosage of this series of products through experiments.
4. When adding non-ionic polyacrylamide (NPAM) product solution, the mixing with the treated solution should be accelerated. After flocs appear, the stirring speed should be slowed down to facilitate the growth of flocs and accelerate sedimentation.
Note:
1. Dissolution temperature. Dissolution requires a certain temperature to speed up the dissolution. However, if the temperature is too high, the molecular chain of the polymer will be broken and the use effect will be reduced. The more suitable dissolution temperature is 50-60 ℃.
2. Stirring conditions. Dissolution should avoid too strong shear stirring, too strong stirring will break the molecular chain, thereby reducing the use effect. Mixing should adopt low-speed blade, such as anchor type, frame type, multi-layer slurry type, etc. The stirring speed is about 60 r/min. Transport should also avoid the use of high-speed centrifugal pump, more suitable for the use of piston pump or diaphragm pump.
3. Uniform dispersion feeding. The key link of polyacrylamide dissolution is the uniform dispersion of the feed. After the mixer is started, it is best to use mechanical vibration screen feeding (screen mesh number is 10 mesh), try to avoid the production of "large mass", "fish eye" insoluble particles, so that polyacrylamide can be fully dissolved, play a good use effect.
4, avoid and iron solution. In the dissolving, stirring and conveying dosing system, it is best to use plastic, enamel, aluminum, stainless steel and other materials.
Packaging and storage:
25 kg/bag (plastic kraft paper bag lined with plastic bag).
This product is non-toxic, pay attention to moisture, rain, avoid sun exposure.
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