高等学校化学学报

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (7): 873.

• 论文 •    下一篇

添加RE-USY分子筛后海泡石的水热热压成型研究

孟宪平1, 嵇天浩1, 朱定华1, 庞文琴1, 山崎仲道2, 柳澤和道2   

  1. 1. 吉林大学化学系、材料科学研究所, 长春, 130023;
    2. 高知大学理学部附属水热化学研究所, 日本, 高知
  • 收稿日期:1991-07-09 出版日期:1992-07-24 发布日期:1992-07-24
  • 通讯作者: 孟宪平
  • 基金资助:

    国家自然科学青年基金;吉林省科学委员会基金

Studies on the Solidification of Sepiolite with the Addition of RE-USY Zeolite by Hydrothermal Hot-Pressing

MENG Xian-ping1, JI Tian-hao1, ZHU Ding-hau1, PANG Wen-qin1, Nakamichi Yamasaki2, Kazumichi Yanagisawa2   

  1. 1. Department of Chemistry, Institute of Material Science, Jilin University, Changchun, 130023;
    2. Research Laboratory of Hydrothermal Chemistry, Faculty of Science, Kochi University, 2-5-1 Akebono-cho, Kochi-shi, 780, Japan
  • Received:1991-07-09 Online:1992-07-24 Published:1992-07-24

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摘要： 本文采用水热热压技术研究了海泡石中添加RE-USY分子筛的固化成型条件,同时以XRD、SEM、IR对固化体的结构变化以及表面酸性进行了测定.实验结果表明,在海泡石中添加Y型沸石分子筛容易制成具有一定强度的固化体.成型后,海泡石和分子筛的原有骨架结构保持不变.成型后的固化体含B酸和L酸中心,但B酸酸量较固化前减少,而L酸量增加.

关键词: 水热热压, RE-USY分子筛, 海泡石

Abstract: In this paper, the sepiolite from Hunan province with the addition of RE-USY zeolite was solidified by the hydrothermal hot-pressing technique.The effect of hydrothermal hot-pressing conditions on the compressive strength, density, appearance,structure changing and surface acidity of the solidified bodies was investigated by means of XRD, SEM and IR.The results show that sepiolite can be solidified easily and the solidified bodies keep the framework structure of starting materials basically.The solidified bodies have Bronsted acid sites and Lewis acid sites, but the Bronsted acidity is very weak and the Lewis acidity is stronger than that before solidifying.

Key words: Hydrothermal hot-pressing, RE-USY type molecular sieve, Sepiolite

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