复合型絮凝剂聚合氯化铝铁（PAFC）的合成及其应用

Through the measure of advanced test including polycrystal X-ray diffraction、differentical thermal analysis, transmission electron microscope and so on, we determined the coal-serial kaolinite for the major reagent after analyzing its constitution, topography, composition and phase transition etc. Calcium oxide is subsidiary reagent. The synthesis method of polyaluminum ferric chloride adopted the singlestage process of acid pickling. We adopt the orthogonal experiment of five factor and four level, having seeken for the agreeable reaction condition. Chemical analysis fixes on the composition and ability of product. The pattern of infrared spectra determines the position and connect style of hydroxyl. Making a good result in the flocculating experiment, the turbid rate is more than 99% when the pH of original water (the Yellow river water) is between 5 and 9.