Aluminum chlorohydrate is an inorganic polymer.With certain cementitious property, it can be used as fireproof coating, ultrapure alumina products and fireproof concrete.Polyaluminium chloride is a high-priced polyhydroxyl electrolyte, which can be regarded as the intermediate product of the hydrolysis of AlCl3 into Al(OH)3. The colloidal nucleus is positively charged and the hydrolysis is acidic.The composition of this kind of product is a mixed system composed of various water-bearing complexes in a certain proportion under certain conditions.Its expression is [Al2(OH)n· cl6-n]m, where n= 1-5, m 10.Due to the different preparation and properties, polyaluminium chloride can also be called hydroxyl aluminum chloride, basic aluminum chloride, polyalumina, etc.The main physical and chemical performance indexes are basicity degree, pH value, Al2O3 content and relative density, etc.Polyaluminium chloride is rich in raw materials, low cost, does not reduce the fire resistance of refractory concrete, high temperature activity is strong, in the addition of a small amount of coagulant, room temperature hardening and other characteristics, is a promising cementing material.
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In water treatment, coagulation flocculation involves the addition of compounds that promote the clumping of fines into larger floc so that they can be more easily separated from the water. Coagulation is a chemical process that involves neutralization of charge ... Coagulation is affected by the type of coagulant used, its dose and mass; pH
flocculation are used to separate the suspended solids portion from the water. ... Coagulant chemicals with charges opposite those of the suspended solids are added to the ... These stages are followed by sedimentation, and then filtration