全文下载：2013060575
李建民， 林润雄*
（青岛科技大学 高分子科学与工程学院，山东 青岛 266042）
摘要： 以磷肥生产废弃物含氟硅胶为原料，采用水热法制备了纳米4A分子筛。考察了陈化时间、晶化时间和晶化温度对4A分子筛制备的影响。实验结果表明，陈化时间为6 h、晶化温度95℃，晶化4 h时，可获得粒径40～50 nm的纳米4A分子筛。每克4A分子筛的钙离子交换容量为330 mg CaCO3，白度为97%，完全满足洗涤助剂的要求。
关键词： 纳米4A分子筛； 水热合成； 磷肥； 硅胶； 纳米材料
中图分类号： TQ 424.25文献标志码： A
Preparation of Nanoparticle Zeolite 4A from Waste in Phosphate Fertilizer Production
LI Jian-min, LIN Run-xiong
( College of Polymer Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042，China)
Abstract： Nanoparticle zeolite 4A was synthesized by hydrothermal synthetic method with fluorine-contained silica, which was wasted in phosphate fertilizer. The effects of aging time, crystallization time and crystallization temperature on the preparation of nanoparticle zeolite 4A was investigated. It was indicated that nanoparticle zeolite 4A with 40—50nm particle size can be synthesized at the aging time of 6 h, crystallization time of 4h and crystallization temperature of 95 ℃. The calcium exchangeability of 1 g dried zeolite 4A is 330 mg CaCO3, the whiteness is 97% , which make the products meet the demands of detergent additives.
Key words： nanoparticle zeolite 4A; hydrothermal synthesis; phosphate fertilizer; silica gel; nanomaterials
收稿日期：2012-11-22
作者简介： 李建民(1988—)，男，硕士研究生.*通信联系人.
