稻壳碱溶活化制备P型分子筛

J4 ›› 2011, Vol. 49 ›› Issue (04): 767-771.

稻壳碱溶活化制备P型分子筛

杨君, 马红超, 付颖寰, 宋宇, 王永为, 于春玲, |董晓丽

大连工业大学化工与材料学院, 辽宁大连 116034

收稿日期:2010-09-07 出版日期:2011-07-26 发布日期:2011-08-16
通讯作者: 马红超 E-mail:mhc@sohu.com

AlkaliActivated Synthesis of Zeolite P from Rice Husk

YANG Jun, MA Hongchao, FU Yinghuan, SONG Yu,WANG Yongwei, YU Chunling, DONG Xiaoli

School of Chemistry Engineering &|Material, Dalian Polytechnic University, Dalian 116034, Liaoning Province, China

Received:2010-09-07 Online:2011-07-26 Published:2011-08-16
Contact: MA Hongchao E-mail:mhc@sohu.com

摘要/Abstract

摘要：

以农业副产物稻壳为硅源、硫酸铝为铝源, 通过炭化、碱溶和水热合成工艺, 无需老化过程及添加晶种制备了洗涤助剂P型分子筛, 并考察了硅铝比、碱度比、反应时间和反应温度对合成分子筛的影响. 实验结果表明, 分子筛合成的最佳条件为： n(Na₂O) ∶n(SiO₂)=1.43, n(SiO₂) ∶n(Al₂O₃)=4, n(H₂O) ∶n(Na₂O)=18.3, 在85 ℃反应8 h. 产品的XRD和SEM表征表明, 上述条件下合成的P型分子筛产品具有较高的结晶度, 无杂相且晶粒细小, 其Ca^2+交换容量可达330 mg/g.

关键词: 稻壳； P型分子筛；水热法；洗涤助剂

Abstract:

Ptype zeolite was synthesized by carbonization, alkalidissolving and hydrothermal method with rice husk and aluminum hydroxide as t
he starting materials without aging prouss and adding crystal seeds. It was found that the optimal zeolitization conditions are temperature 85 ℃; time 8 h; n(Na₂O) ∶n(SiO₂)=1.43, n(SiO₂) ∶n(Al₂O₃)=4, n(H₂O) ∶n(Na₂O)=18.3. The prepared product shows a calcium ionic exchange capacity of 330 mg/g. XRD and SEM of the product show that pure, single phase and high crystalline zeolite P samples were synthesized under optimum conditions.

Key words: rice husk, zeolite P, hydrothermal synthesis, detergent builder

中图分类号:

O613

杨君, 马红超, 付颖寰, 宋宇, 王永为, 于春玲, 董晓丽. 稻壳碱溶活化制备P型分子筛[J]. J4, 2011, 49(04): 767-771.

YANG Jun, MA Gong-Chao, FU Ying-Huan, SONG Yu, WANG Yong-Wei, XU Chun-Ling, Dong-Xiao-Li. AlkaliActivated Synthesis of Zeolite P from Rice Husk[J]. J4, 2011, 49(04): 767-771.