固态合成粉煤灰类脱硫吸附剂的制备及表征

THE PREPARATION AND CHARACTERIZATION UPON SOLID-STATE SYNTHESIS OF A SO_2 SORBENT FROM FLY ASH

采用固态化学反应的方法 ,在 1 0 0℃ ,1 0atm的条件下 ,处理粉煤灰 2d ,制备了含量在 75 30 % ,晶相组成纯度在 99%左右的碱性分子筛Na8(AlSiO4) 6·(OH) 2 ·2H2 O .在30 0℃ ,得到了一类无定形硅铝钠高效脱硫剂 (FA NSA) .在其它条件相同的情况下 ,温度对固态合成样品的影响非常大 .

NaOH,fly ash and H 2O are used in a solid state reaction at 10 atm for 2 days to prepare a basic sodalite Na 8(AlSiO 4) 6·(OH) 2·2H 2O at a temperature of 100℃ and an amorphous aluminosilicate material(FA NSA)coluld be obtained at 300℃.The effect of temperatures on solid state reaction is largely.