CAJ | 학술논문

水热法合成4A沸石的实验是在不同的碱度、不同的液固比、不同的晶化温度和不同的晶化时间条件下进行的,并进行了实验结果和各种合成因素的分析及研究.实验结果分析表明在加碱煅烧及合成沸石的过程中,使用NaOH的效果比使用Na2CO3和KOH,加入适量的晶种能缩短晶化反应时间并能提高合成沸石的质量.在碱度为2.5～4.0M、液固比6∶1～8∶1、晶化温度90～103℃以及晶化时间为3～5h的实验条件下,采用苏州高岭土合成了4A沸石.文中还采用X射线衍射仪和扫描电镜对合成的沸石样品进行了表征.
수열법합성4A비석적실험시재불동적감도、불동적액고비、불동적정화온도화불동적정화시간조건하진행적,병진행료실험결과화각충합성인소적분석급연구.실험결과분석표명재가감단소급합성비석적과정중,사용NaOH적효과비사용Na2CO3화KOH,가입괄량적정충능축단정화반응시간병능제고합성비석적질량.재감도위2.5～4.0M、액고비6∶1～8∶1、정화온도90～103℃이급정화시간위3～5h적실험조건하,채용소주고령토합성료4A비석.문중환채용X사선연사의화소묘전경대합성적비석양품진행료표정.
The experiments with hydrothermal method to synthesize 4A-type zeolite have been carried on in different conditions of alkalinity, liquid solid ratio, the temperature and time of crystallization and the experimental results and synthetical factors were analyzed and researched. Analysis and experimental results indicate that NaOH has more effect than Na2 CO3 and KOH in the process of synthesizing zeolites and alkali calcination, proper crystal seeds can cut down the time of crystallization and improve quality of synthesized zeolites. In the conditions of alkalinity 2.5-4.0M, liquid/solid ratio 6:1-8:1, temperature of crystallization 90-103℃ and time of crystallization 3-5h, 4A-type zeolite can be synthesized from SZT.The synthetical zeolites are characterized by X-ray diffraction (XRD) and scanning electron microscopy (SEM).