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The Synthetic Method of HDTMA-Zeolite and Removal of Phosphate from Water
Author(s): ZHANG Hui, ZHOU Ming-Da, LIU Guo-cong
Pages: 30-
34
Year: 2005
Issue:
3
Journal: GUANGZHOU CHEMISTRY
Keyword: 天然沸石; 十六烷基三甲基溴化铵; HDTMA-改性沸石; 磷酸盐; 去除率;
Abstract: 用十六烷基三甲基溴化铵(HDTMA)对浙江某地天然沸石进行改性,探讨了制备HDTMA-沸石的最佳条件、影响除去水中磷酸盐的因素和除磷机理.试验表明:改性前,天然沸石要用去离子水洗涤3次,在102℃下干燥进行预处理.改性时,改性剂HDTMA的浓度为3 g/L,沸石和HDTMA的质量比为400:3,HDTMA和沸石的反应时间为12h,制得的有机沸石自然晾干.碱性条件下,振荡时间为1 h,随着改性沸石的用量增加,磷酸盐的去除率升高.
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