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Citation: WANG Jian-Wei, LIU Jie, GUI Shou-Xi. Physical Properties of Silica Modified HZSM-5 Zeolite[J]. Chinese Journal of Applied Chemistry, ;2004, 21(6): 601-604. shu

Physical Properties of Silica Modified HZSM-5 Zeolite

1.
Research Institute of Petroleum Processing, SINOPEC, Beijing 100083

Corresponding author: WANG Jian-Wei,
Received Date: 18 July 2003
Available Online: 20 December 2003

HZSM-5 zeolite was modified by silicone oil through chemical liquid deposition(CLD). The modified zeolite were characterized and examined by IR, nitrogen adsorption, and in the reactions of metaxylene isomerization and 1,3,5-triisopropylbenzene(1,3,5-TIPB) cracking. The results showed that the framework and micropore structure of HZSM-5 zeolite remained unchanged and the sizes of open pore in zeolite were reduced and the Brφnsted acidity values on external surface were inactivated. The mechanism of silica modification has been briefly discussed.
- HZSM-5 zeolite,
- silicone oil,
- chemical liquid deposition
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