非金属矿
非金屬礦
비금속광
NON-METALLIC MINES
2013年
1期
12-14
,共3页
张苏伊%周勇敏*%吴勇勇
張囌伊%週勇敏*%吳勇勇
장소이%주용민*%오용용
粉煤灰%煅烧%碱溶%酸溶%NaA 沸石
粉煤灰%煅燒%堿溶%痠溶%NaA 沸石
분매회%단소%감용%산용%NaA 비석
fly ash%calcination%alkali dissolve%acid dissolve%NaA zeolite
粉煤灰加碱煅烧活化后,分别采用碱溶和酸溶的方法成功制备出 NaA 沸石.研究了不同合成方法的工艺过程及参数,得出最佳碱溶参数为:温度100℃、时间0.5 h、液固比30 mL/g、NaOH 浓度2.5 mol/L ,此方法 Si、Al 溶解率分别为27.35%和9.13%.最佳酸溶参数为:液固比20∶1、盐酸溶液质量分数10%,此方法 Si、Al 溶解率分别为72.64%和70.01%.
粉煤灰加堿煅燒活化後,分彆採用堿溶和痠溶的方法成功製備齣 NaA 沸石.研究瞭不同閤成方法的工藝過程及參數,得齣最佳堿溶參數為:溫度100℃、時間0.5 h、液固比30 mL/g、NaOH 濃度2.5 mol/L ,此方法 Si、Al 溶解率分彆為27.35%和9.13%.最佳痠溶參數為:液固比20∶1、鹽痠溶液質量分數10%,此方法 Si、Al 溶解率分彆為72.64%和70.01%.
분매회가감단소활화후,분별채용감용화산용적방법성공제비출 NaA 비석.연구료불동합성방법적공예과정급삼수,득출최가감용삼수위:온도100℃、시간0.5 h、액고비30 mL/g、NaOH 농도2.5 mol/L ,차방법 Si、Al 용해솔분별위27.35%화9.13%.최가산용삼수위:액고비20∶1、염산용액질량분수10%,차방법 Si、Al 용해솔분별위72.64%화70.01%.
After calcining with alkali, fly ash was employed to synthesize NaA zeolites by alkali dissolve and acid dissolve method. The process and parameter were analyzed. The result shows that the best parameter of alkali dissolve are: the temperature is 100 ℃, the time is 0.5 h, the ratio of liquid and solid is 30 mL/g, the NaOH concentration is 3 mol/L. The dissolving rate of Si and Al are 27.35% and 9.13%. The best parameter of acid dissolve are 10% HCl , the ratio of liquid and solid is 20 mL/g. The dissolving rate of Si and Al in this method are 72.64% and 70.01%.
