Content Analysis of Activated Aluminum and its Influence Basedon In-situ Synthesis of ZSM - 5 on Kaolin
[1]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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Journal of Zhengzhou University (Engineering Science)[ISSN
1671-6833/CN
41-1339/T] Volume:
34
Number of periods:
2013 04
Page number:
103-106
Column:
Public date:
2013-09-09
- Title:
- Content Analysis of Activated Aluminum and its Influence Basedon In-situ Synthesis of ZSM - 5 on Kaolin
- Keywords:
- kaolin ZSM -5 ; in-situ crystallization ; activated aluminum
- CLC:
- TQ170.1,TQ426.95
- 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.
- References:
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Last Update:
1900-01-01