中山大学学报（自然科学版）
中山大學學報（自然科學版）
중산대학학보（자연과학판）
ACTA SCIENTIARUM NATURALIUM UNIVERSITATIS SUNYATSENI
2009年
z2期
155-157
,共3页
姚刚%卿山%马林转%岳争超%何屏%李瑛
姚剛%卿山%馬林轉%嶽爭超%何屏%李瑛
요강%경산%마림전%악쟁초%하병%리영
循环流化床飞灰%合成%分子筛
循環流化床飛灰%閤成%分子篩
순배류화상비회%합성%분자사
ashes of circulating fluidized bed%synthesis%molecular sieve
利用循环流化床锅炉粉煤灰在n(SiO2)/n(Al2O3)≈3.3、Na2O/SiO2为1.2～L 5、H2O/Na2O为40～70、凝胶温度和时间分别为60-70℃、时间2 h、晶化反应温度在90-95℃,晶化时间为4-6 h的条件下可以合成出较高结晶度的分子筛,通过XRD表征发现,产品具有良好的P型分子筛特征峰,其相对结晶度为53%.热重分析可知其具有好的稳定性.
利用循環流化床鍋爐粉煤灰在n(SiO2)/n(Al2O3)≈3.3、Na2O/SiO2為1.2～L 5、H2O/Na2O為40～70、凝膠溫度和時間分彆為60-70℃、時間2 h、晶化反應溫度在90-95℃,晶化時間為4-6 h的條件下可以閤成齣較高結晶度的分子篩,通過XRD錶徵髮現,產品具有良好的P型分子篩特徵峰,其相對結晶度為53%.熱重分析可知其具有好的穩定性.
이용순배류화상과로분매회재n(SiO2)/n(Al2O3)≈3.3、Na2O/SiO2위1.2～L 5、H2O/Na2O위40～70、응효온도화시간분별위60-70℃、시간2 h、정화반응온도재90-95℃,정화시간위4-6 h적조건하가이합성출교고결정도적분자사,통과XRD표정발현,산품구유량호적P형분자사특정봉,기상대결정도위53%.열중분석가지기구유호적은정성.
Experimental study showed when n (SiO2) /n (Al2O3)≈3.3, Na2O/SiO2 was 1.2～1.5, H2O/Na2O was 40～70, the gel temperature was 60 -70 ℃, time continued 2h, reaction temperature was 90 -95 ℃, the crystallization time continued 4 -6 h, the fly ash of circulating fluidized bed boiler could synthesize the molecular sieve of higher crystallinity. It had better characteristic peak of P zeolite by the characterization of XRD, good stability by TGA. The relative degree of crystallization was 53%.
