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炼油催化剂厂在生产过程中每年要排除大量的滤渣,对滤渣成分进行了分析,其中SiO2含量为60%左右,Al2O3含量为10%左右,重金属含量不超过土壤环境质量标准值(GB15618-95)。以丙烯酸(AA)、丙烯酰胺(AM)和催化剂厂滤渣等为主要原料,采用水溶液聚合法制备出了滤渣/P(AA-AM)高吸水复合材料,考察了引发剂用量、交联剂用量、单体中和度及滤渣用量对复合材料吸液倍率的影响。结果表明,当中和度为80%,滤渣、引发剂和交联剂用量分别为丙烯酸单体质量的25%、1.0%和0.04%时所制得复合材料吸蒸馏水、自来水和0.9%NaCl达到了1093.2g/g、323.4g/g和74.39g/g。复合材料在25℃下干燥10d,还保持50%的吸水量,在70℃下干燥10h吸水凝胶还可以保持40%的吸水量,表明复合材料具有良好的保水性能。
Refining catalyst plant in the production process every year to exclude a large number of residue, the residue analysis of the composition, of which SiO2 content of about 60%, Al2O3 content of about 10%, heavy metal content does not exceed the soil environmental quality standards (GB15618-95) . Aqueous superacid / P (AA-AM) superabsorbent composites were prepared by using acrylic acid (AA), acrylamide (AM) and catalyst plant residue as raw materials. The effects of initiator dosage, , Monomer neutralization degree and the amount of residue on the composite material aspiration rate. The results showed that when the degree of neutralization was 80%, the amount of residue, initiator and cross-linking agent were 25%, 1.0% and 0.04% of the mass of acrylic monomer respectively, the obtained composite distilled water, tap water and 0.9% NaCl reached 1093.2 g / g, 323.4 g / g and 74.39 g / g. The composite material was dried at 25 ℃ for 10 days and kept at 50% water absorption. After being dried at 70 ℃ for 10h, the water-absorbing gel could still maintain a water absorption of 40%, indicating that the composite material has good water-holding property.