Polyaluminum chloride red mud sedimentation separation technical characteristics should consider what ratio High efficiency emulsion paper retention agent is my company in the past two years according to the current needs of medium and high speed paper machine, independent research and development of new products, the scope of application of aluminum chloride Wide, low dosage, retention and drainage effect is obvious. PDA dry powder paper retention aid is a new kind of efficient and efficient papermaking auxiliary agent that integrates retention and drainage aids. It belongs to amphoteric organic high polymer. It can significantly improve the retention of fillers and fine fibers and improve wet end Chemical additives: such as starch, sizing agents, such as retention; save slurry, additives, reduce the raw materials and sizing, enhance the role of input costs; reduce the concentration of white water under the net, reduce the workshop drainage of pollutants Especially for the improvement of ash content such as cultural paper and newsprint. NREP paper-making dry enhancer is a new type of paper-making dry-strengthening agent independently developed and produced by our company. The product is divided into various contents according to the kinds of paper produced by customers and the required physical Strength indicators to choose from. Poly aluminum chloride With the deinking waste paper, coated waste paper, the use of high-yield pulp and paper machine white water cycle closed in Chengdu increased wet paper machine disturbance substances (anionic garbage) solubility is increasing, the paper Department of wet operation hazards more and more. This product is a low molecular weight strong cationic polymer, added with the role of the PAC in the pulp combined with the role of fine materials, dissolved in dissolved organic matter and the charge density of the small fibers on the surface of the negative charge to balance the wet end of the charge, Reduce the interference of anionic impurities, and promote the retention of fillers, fine fibers and wet chemical additives (such as sizing agent, starch, polyaluminium chloride enhancer, etc.). Polyaluminum chloride can improve the single-pass retention rate and drainage rate of the paper web, improve the running performance of the paper machine, prolong the service life of the net and the blanket, reduce the amount of steam used in the dryer, and improve the speed and output. Polyaluminum Chloride This product is completely ionized over the entire pH range and can be adsorbed directly onto the pulp fibers and form ionic bonds through the combination of polyaluminum chlorides. The amino acids combine with the hydroxyl groups of the fibers to form covalent bonds that increase the inter-fiber Combined with the strength of the product is also a highly efficient dispersant fiber, fiber pulp distribution can be more uniform, can improve the sheet forming; the same time the product combines with the fiber, the fine fibers have a role in retention to improve the fiber Retention rate. As NREP papermaking enhancer not only increases the bonding area between fibers, increases the number of bonding points between the fibers but also increases the firmness of the bonding points, thereby effectively increasing the dry strength, breaking length and bursting strength of the paper , Tensile strength, ring crush strength, peel strength and other physical indicators. The sedimentation separation of polyaluminium chloride red mud is an extremely complicated physico-chemical process. The Bayer process dissolution slurry is a suspension formed by the red mud and sodium aluminate solution. Due to the complex physicochemical interaction between the red mud particles and the red mud particles and the solution, the phase composition, particle size distribution , The surface morphology of the red mud particles and the solid content of the red mud slurry, the liquid phase composition, the temperature of the red mud slurry have a significant impact on the precipitation process of the red mud slurry. If you can choose the right flocculant aluminum chloride, PAC flocculant technology can make solid-liquid separation speed greatly increased, and can reduce the size of the separation equipment. The mechanism of action of the polymer flocculant lies in that the effective agglutination between the edible particles leads to the "large particles" through the adsorption bridging and the surface neutralization charge, so that the sedimentation speed is greatly accelerated. Different dissolution of the pulp, the settlement of different performance, we must choose the right experimental PAC polymer flocculant, in order to achieve efficient separation of red mud.