What is the difference between cationic, anionic and nonionic polyacrylamide in use?
In the water treatment industry, flocculants polyacrylamide can be divided into cationic polyacrylamide, anionic polyacrylamide, nonionic polyacrylamide, zwitterionic polyacrylamide. The same time as the above-
First, cationic polyacrylamide overview
Cationic polyacrylamide is a white powder particles, has a strong flocculation effect, so the broad cationic polyacrylamide is widely used in water treatment and metallurgy, paper, petroleum, chemical, textile, mineral processing and other fields. Broad water production of cationic polymer flocculant is a water-soluble linear polymer compounds, molecular weight between 600-1800 million, in methanol, ethanol can be dissolved, insoluble in ketones, esters, hydrocarbons and other organic solvents The In acidic or alkaline medium were positive electrons, so that the effective suspension of suspended solids in the sewage of sewage with flocculation and sedimentation. The same time as the above-
Second, anionic polyacrylamide overview
Anionic polyacrylamide, the appearance of white powder particles, with flocculation, thickening, shear resistance and other properties, soluble in water, almost insoluble in organic solvents, widely used in oil, paper, chemicals, mineral processing industry. The same time as the above-
Anionic polyacrylamide (PAM) Product Description: Anionic polyacrylamide molecular weight from 600 million to 25 million water solubility, and can be dissolved in any proportion of water and insoluble in organic solvents. Effective pH range of 7 to 14, in the neutral alkaline medium was a high polymer electrolyte characteristics, and salt electrolytes sensitive, and high-priced metal ions can be cross-linked into insoluble gel. The same time as the above-
Third, non-ionic polyacrylamide overview
Nonionic polyacrylamide is a water-soluble polymer or polyelectrolyte. Because of its molecular chain contains a certain number of polar groups, it can be adsorbed by the water suspended solid particles, so that the particles between the bridge or through the charge and the particles condensed to form a large floc. Therefore, it can accelerate the deposition of particles in the suspension, there is a very clear solution to speed up the clarification, and promote the effect of filtration. Mainly used for a variety of industrial wastewater flocculation settlement, sediment clarification. Such as paper and pulp wastewater wastewater treatment, mineral processing and metal smelting process of wastewater treatment, steel and stone processing plant wastewater treatment. The same time as the above-
What is the difference between cationic, anionic, and nonionic polyacrylamide in use?
1, cationic polyacrylamide is mainly used for urban sewage treatment plant sludge dewatering, such as the production of food alcohol wastewater, papermaking wastewater, beer wastewater, monosodium glutamate wastewater, sugar wastewater, organic high content of wastewater, beverage wastewater, textile printing and dyeing wastewater And other industries used as coagulant cargo sludge dewatering agent. In addition, cationic polyacrylamide can also be used as oil chemical additives, such as clay anti-swelling agent, oilfield acidification thickener, and paper-based enhancer. The same time as the above-
2, anionic polyacrylamide is mainly used to deal with inorganic solid-based neutral suspension. In the mining, for the clarification and flotation tailings, coal filtration, tailings (slag) dehydration, flotation tailings clarification, concentrate thickening and filtration, potassium alkali hot solution and flotation processing fluid to clarify , Fluorite and barite flotation tailings clarification, anionic polyacrylamide is also used for salt processing of the original salt water, sludge dewatering clarification and phosphate salt recovery of water treatment. In the casting and metal manufacturing industry, anionic polyacrylamide is used for the purification of the furnace gas wash water, the clarification of the powder metallurgy plant and the acid washing plant, the purification of the electrolyte and the clarification of the electroplating waste. The same time as the above-
3, non-ionic polyacrylamide can be used for textile industry auxiliaries, when adding some other chemicals can be formulated into a chemical slurry for textile sizing to improve the adhesion, permeability and desizing performance, the fabric with anti Electrostatic, reduce the sizing rate, reduce the twist pulp spot, cloth machine breakage rate and falling objects. Nonionic polyacrylamide is also mainly used as a sewage treatment agent, suitable for acidity of the suspension, as the most suitable for the use of flocculants, then PAM is the role of adsorption bridge, so that the suspension of particles flocculation sedimentation, to purified water purpose.