Process for preparing polyalumium hydroxy chloro sulfate as a flocculant for treating water

摘要

The invention of aluminum sulfate, which is commercially available in formulations for existing water treatment (Aluminum sulfate, AS) and poly aluminum chloride (Polyaluminum chloride, PAC) by complementing the disadvantages of low salt and airway monomolecular having conventional flocculant is using, excellent stability as high basicity, having the water treatment coagulant activity and aggregation of poly-reactive hydroxide chloride, aluminum sulfate (Polyaluminum hydroxy chloro sulfate, a method for PAHCS) to manufacture. ; First, the scheme is reacted with an alkali aluminum sulfate as poly aluminum sulphate is the same as the following, ; General expression of poly aluminum sulphate obtained in the above ; [Al ₂ (OH) _n (SO ₄ ) _{3-n / 2} ] _{m indicated by} and, ; where n and m are 1 n 5 m & . The 10 ; Poly sulfuric acid obtained from the following scheme that poly aluminum hydroxide chloride, sulfuric acid by the reaction of aluminum and poly-aluminum chloride are as follows, ; general formula [Al ₂ (OH) _a Cl _b (SO ₄ ) _c ] _m and m and m is the m & . The 10