Properties and potential applications of zeolitic materials produced from fly ash using simple method of synthesis
Properties and potential applications of zeolitic materials produced from fly ash using simple method of synthesis
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DOI：
10.1016/j.powtec.2006.05.004
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发表时间：
2006-08-03
影响因子：
5.2
通讯作者：
Czimerova, Adriana
中科院分区：
文献类型：
--
作者：
Derkowski, Arkadiusz;Franus, Wojciech;Czimerova, Adriana
提出了一种以粉煤灰为原料合成沸石材料的低能耗工艺。以f级粉煤灰为原料，在110℃以下的常压条件下，采用NaOH和NaCl溶液制备了富含沸石相Na-X （FAU）、NaP1 （GIS）和sodalite （SOD）的3种不同的沸石材料（X、P和S），分析了所得沸石产品的组成和理化性质，并与原料粉煤灰和工业吸附剂进行了比较。沸石化导致CEC显著增加（从5.5增加到239 meq 100 g(-1)），并且具有吸附重金属离子（超过40 mg g(-1)）和保留复杂和有机分子（EGME）的高能力，这在x材料中最为明显。使用沸石化产品对废物和工作润滑油进行吸附净化，使其在石油工业中具有商业应用。标准反应后洗涤后的有毒元素的浸出性是环保的。(c) 2006 Elsevier B.V.版权所有
Very low energy-consuming procedure is proposed for synthesis of zeolitic materials from fly ash. Three different zeolite materials (X, P and S), rich in zeolite phases, Na-X (FAU), NaP1 (GIS) and sodalite (SOD) were produced from F-class fly ash, using NaOH and NaCl solutions under atmospheric pressure at temperature below 110 degrees C.Obtained zeolitic products were analysed for their composition and physicochemical properties then compared to the raw fly ash and commercial adsorbents. The zeolitization results in a significant increase of CEC (from 5.5 up to 23 9 meq 100 g(-1)), and the high ability to adsorb heavy metal ions (over 40 mg g(-1)) and retain complex and organic molecules (EGME), mostly evident for material X. Adsorptive purification of waste and working lubricating oils using zeolitic products allow to provide their commercial applications in petroleum industry. Leachability of toxic elements after standard post-reaction washing is environmentally safe. (c) 2006 Elsevier B.V. All rights reserved.