Studies on the Surface Acidity and Catalytic Properties of Pillared Ga-Substituted Saponite

Chem. J. Chinese Universities ›› 1994, Vol. 15 ›› Issue (1): 93.

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Studies on the Surface Acidity and Catalytic Properties of Pillared Ga-Substituted Saponite

JIANG Ting-Shun¹, SUNT Tie¹, SHEN Jian-Ping¹, JIANG Da-Zhen¹, Min En-Ze²

1. Department of Chemistry, Jilin University, Changchun, 130023;
2. Research Institute of Petroleum Processing, Beijing 100083

Received:1993-03-05 Revised:1993-07-22 Online:1994-01-24 Published:1994-01-24

Abstract

Abstract: Two Ga-substituted saponites with different amount of gallium were synthesized by hydrothermal method.The pillared clays were prepared by cross-linking with hydroxyl aluminium oligomer,The results show that the amount of acidity of the samples increases with that of gallium in the tetrahedral sheet,and both Brnsted and Lewis acid sites are present on the surfaces of the samples,and the Bacid sites decrease after cross-linking with Al(13) oligomer.The studies on the catalytic properties show that the activity is correlative to the amount of gallium in the tetrahedral sheet.

Key words: Cross-linking Ga-substituted saponite, Surface acidity, Cracking reaction, Disproportionation reaction

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JIANG Ting-Shun, SUNT Tie, SHEN Jian-Ping, JIANG Da-Zhen, Min En-Ze. Studies on the Surface Acidity and Catalytic Properties of Pillared Ga-Substituted Saponite[J]. Chem. J. Chinese Universities, 1994, 15(1): 93.

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Studies on the Surface Acidity and Catalytic Properties of Pillared Ga-Substituted Saponite

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