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[篇名]
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粉煤灰水热法提硅合成沸石工艺研究
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[著者]
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谭宏斌; 熊海涛
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[机构]
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陕西理工学院材料学院, 陕西 汉中 723003; 陕西理工学院化环学院
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[中文关键词]
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粉煤灰; 水热合成; 沸石; 吸附能力
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[外文关键词]
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fly ash
hydrothermal synthesis zeolite adsorption ability
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[分类号]
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[刊名]
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非金属矿
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[出版时间]
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2008年1月
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[来源]
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VOL31,NO.1._13—14
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[中文摘要]
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以粉煤灰为原料,研究了水热反应时间对粉煤灰转变产物、溶液中Si4+浓度和制备A型沸石的影响,结果表明:80℃、水热6天,合成了含P型沸石和X型沸石的粉煤灰沸石;水热36h时,溶液中Si4+浓度最大为0.51mol/L;水热26h,合成的A型沸石结晶较好。对A型沸石、粉煤灰沸石、活性炭、天然沸石和粉煤灰的吸附性能进行了研究,结果表明:合成的A型沸石吸附能力最好,对Cd2+的吸附率达99.83%。
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[外文摘要]
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The effect on
hydrothermal reaction time for Si4+ concentration, fly ash transformation
production and zeolite A synthesized were studied
using fly ash as raw material. The result indicated that the fly ash zeolite was synthesized at hydrothermal 6d, the
solution concentration is 0.51mol/L when the hydrothermal time is 36h, and
the zeolite A is synthesized in hydrothermal 26h
using the Si4+, at 80℃ hydrothermal condition. And the
adsorptions of zeolite A, fly ash zeolite, the activated charcoal, the natural zeolite and fly ash were studied.The
results indicated that the zeolite A adsorption
is best,its adsorption
rate is 99.83%.
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