Guangxi polyaluminium chloride factory direct: what are the synthesis methods of polyaluminium chloride?
Guangxi Polyaluminum Chloride Factory OutletPolyaluminium chloride is an inorganic polymer flocculant. Compared with other coagulants, it has the advantages of wide application range and strong adaptability. Large alum flowers are easy to form quickly and have good sedimentation properties. The pH range is wide (between 5 and 9), and the pH value and alkalinity of the treated water decrease slightly. When the water temperature is low, the precipitation is still stable. Compared with other aluminum salts and iron salts, it has high alkalinity and little influence on equipment corrosion. With strong adsorption, in the hydrolysis process accompanied by electrochemical, condensation, adsorption, precipitation and other physical and chemical changes, the final generation of AL2(OH)3(OH), so as to achieve the purpose of purification.
Guangxi Polyaluminum Chloride Factory OutletThe difference between the spray drying method for PVC production and the drum drying method for polyaluminium chloride production: spray drying method: liquid raw material-filter press-spray drying method: finished product drum drying method: liquid raw material-natural sedimentation method-drum drying method-finished product.
Guangxi Polyaluminum Chloride Factory OutletThere are many synthetic methods of polyaluminum chloride. According to the different raw materials, it can be divided into metal aluminum method, active aluminum hydroxide method, aluminum trioxide method, aluminum chloride method, etc.
Metal aluminum method: the raw materials for synthesizing polyaluminum chloride by metal aluminum method are mainly aluminum processing scraps, such as aluminum scrap, aluminum ash, aluminum slag, etc.Guangxi Polyaluminum Chloride Factory OutletAccording to the process is divided into acid method, alkali method, and three kinds of method. The quality of the product is difficult to control in the acid method based on HCL. The alkali production process is difficult, the equipment investment is large, the amount of alkali is large, the raw material cost is high, the pH control cost is high. The most commonly used neutralization method, as long as the ratio is controlled, can generally meet the national standard.
Aluminum hydroxide method: the purity of aluminum hydroxide powder is higher,Guangxi Polyaluminum Chloride Factory OutletThe content of heavy metals and other toxic substances in the synthesized polyaluminum chloride is low, and the production process of pressurized acid dissolution is generally used. The process is simple, but the production of polyaluminum chloride salt base degree is low, so the general use of aluminum hydroxide heating acid solution plus calcium aluminate and two processes.
Alumina trioxide method: the raw materials of alumina are mainly gibbsite, bauxite, kaolin, coal gangue, etc. This process can be divided into two steps: one is to obtain crystalline aluminum chloride, and the other is to obtain polyaluminum chloride by pyrolysis or neutralization.
Aluminum chloride method: aluminum chloride powder as raw material, aluminum chloride polymerization treatment,Guangxi Polyaluminum Chloride Factory OutletIt is considered that this method is the most widely used, mainly including neutralization method, electrochemical method and thermal decomposition method.
Industrial polyaluminum chloride water purification agent manufacturer Guangxi Pingguo Fenghua Science and Technology specializes in producing and selling industrial polyaluminum chloride water purification agent, polyaluminum chloride water purification agent, drinking water grade polyaluminum chloride, providing you with polyaluminum chloride price consultation service, is Guangxi polyaluminum chloride supplier, polyferric sulfate manufacturer, phosphorus remover manufacturer, water purification agent manufacturer recommend brand, polyaluminum chloride Guangxi supplier, drinking water grade polyaluminum chloride production organization andGuangxi Polyaluminum Chloride Factory Outlet. The product has low cost, pure quality and excellent performance, and is widely used in urban and industrial sewage treatment projects.
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