Chem. J. Chinese Universities ›› 1995, Vol. 16 ›› Issue (4): 591.
• Articles • Previous Articles Next Articles
MIAO Chang-Xi, CHEN Jian-Min, GAO Zi
Received:
Revised:
Online:
Published:
Abstract: The effects of preparative conditions on the properties of ZrO2precursor and SO42-/ZrO2superacid were studied in detail by means of BET,XRD,flow Hammett indicator method, hemical analysis and butane isomerization reaction at low temperature. Under different conditions. the specific surface area of ZrO2precursor may differ by a factor of 1.8,while the acid strength and the rate constant for butane isomerization at 20℃ of SO42-/ZrO2superacid may differ approximately by a factor of 1000 and 300, respectively. When appropriate preparative conditions are selected, the maximum specific surface area of ZrO2obtained is 245 m2/g and the maximum acid strength and rate constant for butane isomerization at 20℃ are H0≤-16. 0 and 15. 5×10-3h-1,respectively.
Key words: ZrO2precursor.SO42-/ZrO2superacid, Specific surface area, Acid strength, Activity of butane isomerization
TrendMD:
MIAO Chang-Xi, CHEN Jian-Min, GAO Zi. An Improvement on the Preparation of SO42-/ZrO2Superacid[J]. Chem. J. Chinese Universities, 1995, 16(4): 591.
0 / / Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.cjcu.jlu.edu.cn/EN/
http://www.cjcu.jlu.edu.cn/EN/Y1995/V16/I4/591