CAJ | 학술논문

以磷肥生产废弃物氟硅酸制备氟化铵溶液时副产的白碳黑为原料,以铝矾土为铝源,制备了晶化导向剂,并采用水热法制备了4A分子筛.考察了晶化导向剂加入量、晶化时间和晶化温度对4A分子筛性能的影响.实验结果表明,当晶化导向剂的加入量为7%(质量分数)、晶化温度为80℃、晶化时间为2 h时,制备的4A分子筛的钙交换容量(以CaCO_3计)为336 mg/g,并采用X射线衍射仪和红外光谱仪对4A分子筛的结构进行了表征.
이린비생산폐기물불규산제비불화안용액시부산적백탄흑위원료,이려반토위려원,제비료정화도향제,병채용수열법제비료4A분자사.고찰료정화도향제가입량、정화시간화정화온도대4A분자사성능적영향.실험결과표명,당정화도향제적가입량위7%(질량분수)、정화온도위80℃、정화시간위2 h시,제비적4A분자사적개교환용량(이CaCO_3계)위336 mg/g,병채용X사선연사의화홍외광보의대4A분자사적결구진행료표정.
The white carbon black, by-product in the preparation of ammonium fluoride solution from phosphate fertilizer production waste fluorosilicic acid, was used as raw material, and bauxite was used as aluminum source, to prepare crystallization director and then to prepare 4A molecular sieve by hydrothermal synthetic method. The effects of crystallization director dosage, crystallization temperature and crystallization time on the capability of 4A molecular sieve were studied. The experimental results show that when the crystallization director dosage is 7% (mass fraction) , the crystallization temperature is 80 ℃, and the crystallization time is 2 h, the exchange capacity of the prepared 4A molecular sieve for calcium is 336 mg/g (calculated by CaCO_3). The structure of 4A molecular sieve was characterized by XRD and IR.