Cr-MCM-41分子筛的合成、 表征及其催化性能[HT][HT4F]

Synthesis, characterization and catalytic properties of Cr-MCM-41 molecular sieves

ZHUANG Hong^1,２， ZHOU Guang-dong¹, LIU Tao³, BI Ying-li¹, CHENG Tie-xin¹, ZHEN Kai-ji¹

1. Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China; ２． College of Chinese Pharmacy, 　Changchun College of Traditional Chinese Medicine, Changchun 130117, China; ３. Beijing Synchrotron Radiation Laboratory, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039, China

Received:2004-02-18 Revised:1900-01-01 Online:2004-07-26 Published:2004-07-26
Contact: CHENG Tie-xin

Abstract

Abstract: A series of Cr-containing MCM-41 molecular sieves has been synthesized and characterized by XRD, IR and Extend X-ray Absorption Fine Structure(EXAFS) techniques. It has been shown that a certain amount of chromium ions has been incorporated into the framework of MCM-41 and the rest part of the contained Cr ions still existed as other types of Cr-containing compounds, which can be washed off by a NH₄Ac solution. The octadecan-1-ol c onversion and octadecanoic acid selectivity are not decreased after Cr-MCM-41 and Cr-MCM-41-t catalysts have been repeatedly used for the selective oxidation of octadecan-1-ol to octadecanoicacid.

Key words: Cr-MCM-41 molecular sieve, octadecan-1-ol, catalytic oxidation, EXAFS

CLC Number:

O643.38

ZHUANG Hong， ZHOU Guang-dong, LIU Tao, BI Ying-li, CHENG Tie-xin, ZHEN Kai-ji. Synthesis, characterization and catalytic properties of Cr-MCM-41 molecular sieves[J].J4, 2004, 42(03): 447-450.

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Synthesis, characterization and catalytic properties of Cr-MCM-41 molecular sieves

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