洗涤助剂P型分子筛的合成与性能表征  

Study on preparation and characterization of detergent P zeolite

作　　者：张金峰[1] 王思晨[1] 李瑞丰[2] 

机构地区：[1]陕西省石油化工研究设计院,陕西西安710054 [2]太原理工大学化学工程与技术学院教育部煤科学与技术重点实验室,山西太原030024

出　　处：《应用化工》2006年第12期946-948,共3页Applied Chemical Industry

摘　　要：采用具有高白度和较细粒度的煅烧高岭土为原料,通过水热合成法合成P型分子筛,最佳反应条件为:固液比1∶3(高岭土g/碱液mL),NaOH浓度4 mol/L,晶化温度90℃,晶化时间12 h。XRD表明,产品具有良好的P型分子筛特征峰,热重分析可知其具有好的稳定性;粒度分布图和扫描电镜图表明,所得产品是均匀的细小颗粒,和4A沸石相比,它的钙离子交换能力高,适宜作洗涤助剂。Taking calcine kaolin with high whiteness and uniform particles as raw materials, the P zeolite was synthesized by hydrothermal method, the optimum reaction condition were as follows： the ratio of solid to liquid was 1：3 （ kaolin g/sodium hydroxide mL）, the concentration of sodium hydroxide was 4 mot/L, reaction temperature was 90℃, reaction time was 12 h. It had better characteristic peak of P zeolite by X- ray diffraction, good stability by thermograrimetric analysis, and the narrower grain-size distribution by granularity distribution and SEM, moreover, compared with 4A molecular sieve, it had the high calcium ionic exchange ability, so it can be act as detergent.

关 键 词：P型分子筛 洗涤助剂 煅烧高岭土 钙交换 

分 类 号：O657.32[理学—分析化学]