亚微米4A沸石的合成、结构与性能研究  

SYNTHESIS, STRUCTURE AND PERFORMANCE STUTY ON SUBMICRON 4A-ZEOLITE

作　　者：杨效益[1] 张高勇[1] 李秋小[1] 董晋湘[1] 

机构地区：[1]中国日用化学工业研究所,太原030001

出　　处：《精细石油化工》2004年第3期33-35,共3页Speciality Petrochemicals

基　　金：国家高科技研究发展专项经费资助项目(2003AA327020)

摘　　要：介绍了以水玻璃、铝矾土和晶化导向剂为原料合成洗涤助剂用亚微米4A沸石的工艺过程,考察了各因素对合成的影响,并对亚微米4A沸石的结构和性能进行了研究。结果表明,最佳合成条件为n(SiO2):n(Al2O3)=1.9:1,晶化温度85℃,胶化时间20 min,晶化时间30 min,产物粒度<1 μm的占70％,钙交换能力为330 mg(CaCO3)／g(沸石)。The synthesis of submicron 4A-zeolite as detergent assistant from water glass and bauxite in hydrothermal system with crystallization director were introduced, and the effects of various factors were investigated. The structure and performance of the product were studied also. The results showed that the optimal synthetic conditions were as follows: n(SiO2):n(Al2O3) = 1. 9 : 1, crystallization temperature 85℃, gelation time 20 min, crystallization time 30 min, granularity is 70% <1 μm and calcium exchange capacity =330 mg(CaCO3)/g(4A-zeolite).

关 键 词：亚微米4A沸石 合成工艺 洗涤助剂 合成条件 粒度 液体洗涤剂 氢氧化钠 

分 类 号：TQ649.45[化学工程—精细化工]