甲醇氨化反应中交联皂石的催化行为

高等学校化学学报 ›› 1992, Vol. 13 ›› Issue (1): 119.

甲醇氨化反应中交联皂石的催化行为

孙秀丽, 任北原, 蒋大振

吉林大学化学系, 长春, 130023

收稿日期:1990-10-12 出版日期:1992-01-24 发布日期:1992-01-24
通讯作者: 蒋大振

Catalytic Behaviour of Cross-linked Saponite in Dehydration- Amination of Methanol with Ammonia

SUN Xiu-li, REN Bei-yuan, JIANG Da-zhen

Department of Chemistry, Jilin University, Changchun, 130023

Received:1990-10-12 Online:1992-01-24 Published:1992-01-24

摘要/Abstract

摘要： 层柱材料是具有规则孔结构且其表面酸性及孔结构可调变的固体酸催化剂.本文合成了皂石,并用十三聚铝羟基络离子(Al₁₃)与其交联,在醇氨化反应中研究了此层柱材料孔结构及表面酸性与催化性能间的关系.

关键词: 甲醇氨化, 十三聚铝羟基络离子, 交联皂石

Abstract: The pillared saponites were prepared by replacing the interlayer cation in the saponites synthesized by using hydrothermal method with [Al₁₃O₄(OH)₂₄ (H₂O)₁₂]⁷⁺.The linkage mode of pillar with layer may be Al-O-Al_p obtained by means of hydroxyl group condensition acom-panying the breaking of Si-Obond in the tetrahedral sheet according to the results of MAS NMR, XRDand chemical analysis.The dehydration-amination of methanol with ammonia was studied over the pillared saponites at 375 - 450℃ under ambient pressure.It is found that the methanol conversion and amine selectivity incresase with the acid amount on the surface of pillared saponite which is correlative with pillar density.The trimethylamine was suppressed with the increase of pillar density which is.correlative with the size and shape of pore structure.It means that the pillared saponite possesses the function of shape selectivity.

Key words: Methanol animation, [Al₁₃O₄(OH)₂₄(H₂O)₁₂]⁷⁺, Pillared saponite

TrendMD:

孙秀丽, 任北原, 蒋大振. 甲醇氨化反应中交联皂石的催化行为. 高等学校化学学报, 1992, 13(1): 119.

SUN Xiu-li, REN Bei-yuan, JIANG Da-zhen . Catalytic Behaviour of Cross-linked Saponite in Dehydration- Amination of Methanol with Ammonia. Chem. J. Chinese Universities, 1992, 13(1): 119.