Influence of Adding SiO2into ZrO2on SO42-/ZrO2Solid Superacid

Chem. J. Chinese Universities ›› 1999, Vol. 20 ›› Issue (6): 909.

• Articles • Previous Articles Next Articles

Influence of Adding SiO₂into ZrO₂on SO₄^2-/ZrO₂Solid Superacid

ZHANG Feng, HUA Wei-Ming, GAO Zi

Department of Chemistry, Fudan University, Shanghai, 200433

Received:1998-09-11 Online:1999-06-24 Published:1999-06-24

Abstract

Abstract: Aseries of SO₄^2-/ZrO₂SiO₂catalysts with different SiO₂amount were prepared by coprecipitation and coating methods. The effect of adding SiO₂into ZrO₂on the crystallization, surface area, sulfur content, superacidity of SO₄^2-/ZrO₂and cumene cracking and iso-propanol dehydration was studied in detail. Adding SiO₂into ZrO₂retarded the crystallization and phase transformation of ZrO₂, and decreased solid superacidity of SO₄^2-/ZrO₂, but enhanced the catalytic activities of SO₄^2-/ZrO₂for cumene cracking and isopropanol dehydration.

Key words: Solid superacidity, SO₄^2-/ZrO₂, SO₄^2-/ZrO₂SiO₂

CLC Number:

O643.1

TrendMD:

ZHANG Feng, HUA Wei-Ming, GAO Zi . Influence of Adding SiO₂into ZrO₂on SO₄^2-/ZrO₂Solid Superacid[J]. Chem. J. Chinese Universities, 1999, 20(6): 909.

[1]	LEI Ting, HUA Wei-Ming, TANG Yi, YUE Ying-Hong, GAO Zi . Studies on MCM-41 Supported SO₄^2-/ZrO₂ Solid Superacid Catalysts [J]. Chem. J. Chinese Universities, 2000, 21(8): 1240.
[2]	LEI Ting, HUA Wei-Ming, TANG Yi, YUE Ying-Hong, GAO Zi . Studies on γ-Al₂O₃ Supported Cr Promoted SO₄^2-/ZrO₂ Solid Superacid Catalysts [J]. Chem. J. Chinese Universities, 2000, 21(11): 1697.
[3]	XIA Yong-De, HUA Wei-Ming, GAO Zi . Pentane Reaction over SO₄^2-/ZrO₂and SO₄²/Al₂O₃₂ZrO₂Catalysts [J]. Chem. J. Chinese Universities, 1999, 20(1): 92.
[4]	CHEN Jian-Min, MIAO Chang-Xi, HUA Wei-Ming, GAO Zi. Studies on the Storage Stability of SO₄^2-/ZrO₂ Solid Superacid [J]. Chem. J. Chinese Universities, 1996, 17(5): 797.
[5]	MIAO Chang-Xi, CHEN Jian-Min, GAO Zi. An Improvement on the Preparation of SO₄^2-/ZrO₂Superacid [J]. Chem. J. Chinese Universities, 1995, 16(4): 591.
[6]	GAO Zi, CHEN Jian-Min, TANG Yi . Infrared Studies of SO₄^2-/ZrO₂ Superacid System [J]. Chem. J. Chinese Universities, 1993, 14(5): 658.

Influence of Adding SiO₂into ZrO₂on SO₄^2-/ZrO₂Solid Superacid

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 6

Recommended Articles

Metrics

Comments