高等学校化学学报

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Y沸石水热转晶为ECR-1沸石的研究

丁红, 宋江伟, 任利敏, 肖丰收   

  1. 吉林大学无机合成与制备化学国家重点实验室, 长春 130012
  • 收稿日期:2008-10-28 修回日期:1900-01-01 出版日期:2009-02-10 发布日期:2009-02-10
  • 通讯作者: 肖丰收

Synthesis of Zeolite ECR-1 from Hydrothermal Phase Transition of Zeolite Y

DING Hong, SONG Jiang-Wei, REN Li-Min, XIAO Feng-Shou*   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130023, China
  • Received:2008-10-28 Revised:1900-01-01 Online:2009-02-10 Published:2009-02-10
  • Contact: XIAO Feng-Shou

摘要: ECR-1具有十二元孔道, 其通常是在有机模板存在下合成的, 我们曾报道了在无有机模板剂的条件下合成沸石ECR-1, 本文报道在无有机模板剂存在的条件下Y沸石水热转晶为沸石ECR-1的研究结果. 因为Y沸石具有合成简单、价格低廉和不使用有机模板等特点, 所以对由Y沸石转晶为ECR-1的研究, 对其在工业上的应用具有重要意义.

关键词: 无有机模板剂, 转晶, 水热条件, ECR-1沸石, Y沸石

Abstract: Aluminosilicate zeolite ECR-1 was successfully obtained under hydrothermal condition at 100 ℃ by hydrothermal phase transition of zeolite Y in the absence of organic template. When n(Na2O)/n(SiO2) ratio in the starting aluminosilicate gel[n(SiO2)∶n(Al2O3)∶n(Na2O)∶n(H2O)=10∶1.0∶2.5—3.3∶200] was 0.33, the phase transition from zeolite Y to zeolite P occurred. However, when the n(Na2O)/n(SiO2) ratio was 0.25, zeolite Y was converted into zeolite ECR-1. In this case, zeolite Y was served as nutrient for the crystallization of zeolite ECR-1.

Key words: Organic-template free, Phase transition, Hydrothermal condition, Zeolite ECR-1, Zeolite Y

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