Abstract
The coal fly ash (CFA) used in this study originated from a thermal power plant located in China Shandong (CS) province. During the experimental process, CS-CFA as raw materials was modified by acid solution (HCl) and alkaline solution (NaOH) with different concentration one after another for studying their effects on physical and chemical properties of coal fly ash. According to the results of characteristic analysis, CS-CFA modified by acid solution and then modified, respectively by 10 and 12M alkaline solution were used for the preparation of X molecular sieve. X molecular sieve was prepared at different temperature and time. The effect of temperature and time on the characteristic of X molecular sieve was discussed according to the result of adsorption experiments. Moreover, by comparison with commercial activated carbon, it has been demonstrated that synthetic X molecular sieve used for industrial production is feasible.
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