[1]董贺新,郭士岭,王静..高岭土原位合成ZSM-5中活性铝含量分析及影响[J].郑州大学学报(工学版),2013,34(04):103-106.[doi:10.3969/j.issn.1671-6833.2013.04.024]
　Dong He-xin,Guo Shi-ling,Wang Jing.Content Analysis of Activated Aluminum and its Influence Basedon In-situ Synthesis of ZSM - 5 on Kaolin[J].Journal of Zhengzhou University (Engineering Science),2013,34(04):103-106.[doi:10.3969/j.issn.1671-6833.2013.04.024]
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高岭土原位合成ZSM-5中活性铝含量分析及影响()
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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:
34
期数:
2013年04期
页码:
103-106
栏目:
出版日期:
2013-09-09

文章信息/Info

Title:
Content Analysis of Activated Aluminum and its Influence Basedon In-situ Synthesis of ZSM - 5 on Kaolin
作者:
董贺新; 郭士岭; 王静.
郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001, 郑州大学化工与能源学院,河南郑州,450001
Author(s):
Dong He-xin ; Guo Shi-ling; Wang Jing
School of Chemical Engineering and Energy ,Zhengzhou University，Zhengzhou 450001，China
关键词:
高岭土;  ZSM-5;  原位晶化;  活性氧化铝
Keywords:
kaolin ZSM -5 ;  in-situ crystallization ;  activated aluminum
分类号:
TQ170.1,TQ426.95
DOI:
10.3969/j.issn.1671-6833.2013.04.024
摘要:
采用EDTA容量法,以PAN作为指示剂,准确分析不同温度下焙烧高岭土中的活性铝含量,滴定终点颜色变化明显.并讨论了活性硅、活性铝含量对原位晶化合成ZSM-5型分子筛的影响.750℃焙烧高岭土、外加铝源的950℃焙烧高岭土都难以合成出ZSM-5型分子筛.以950℃焙烧高岭土为载体和唯一铝源,外加硅源,适当调节碱、硅、水加入量,在150℃,高硅铝比条件下得到杂晶少、结晶度较高的产品.通过此方法可区分高岭土中载体铝和用于合成的活性铝.原位晶化合成中硅铝配比以活性铝、活性硅含量计算较为合理.
Abstract:
Taking PAN as indicator,a precise content analysis method of the activated aluminum which con-sists in calcined kaolin in the different temperature by the EDTA volumetric method is introduced in this pa-per. The color change of end-point is obvious. And the effect about content of activated aluminum based onin-situ crystallization synthesis of ZSM -5 is also discussed.ZSM -5 is difficult to be synthesized in situ crys-tallization in the kaolin calcined at 750 ℃ or at 950 ℃ added to the aluminum source.Crystallization productswith little impure crystal,high degree was synthesized under the following conditions: the kaolin calcined at950 ℃ as carrier and the only source of aluminum，adjunction of silicon source, appropriate regulation of al-kali,silicon and water content,synthesis temperature of 150 ℃. With this method，A distinction should bemade between the difference in kaolin carrier of aluminum and used for the synthesis of active aluminum. Andthis paper presents a general method that act Si ( activated silicon )-Al ( activated aluminum ) ratio as the ratioof synthetic zeolite in situ crystallization.
更新日期/Last Update: 1900-01-01