镓镍皂石的合成、交联、表征及催化性能的研究

采用水热法首次合成出自然界不存在的两种不同镓含量的镓镍皂石（ＧａＮｉＳ）－ 用多烃基铝低聚物交联，制得交联粘土（ＡｌＰＧａＮｉＳ）－ 经ＸＲＤ 表征了样品的晶相，元素分析确定了样品的化学组成与结构式－ 同时又采用红外光谱分析和程序升温还原（ＴＰＲ） 表征了样品－ＮＨ３ＴＰＤ 和ＰｙＩＲ 结果表明，样品均含有Ｂ 酸和Ｌ 酸中心，ＡｌＰＧａＮｉＳ 表面Ｌ 酸中心所占的份额大，ＡｌＰＧａＮｉＳ的酸量高于ＨＧａＮｉＳ－ 在异丙苯裂解反应和正己烷加氢异构反应上考察了样品的催化性能－ 结果表明，交联镓镍皂石催化活性较高，异构选择性较好

Studies on the Synthesis,Cross Linking,Characterization and Catalytic Properties of Ga Ni Substituted Saponite

Ga Ni Substituted Sponite having two different Ga content was first synthesized by hydrothermal method.The cross linking clay (Al PGaNiS) was prepared by cross linking with hydroxyl aluminium oligomer.The above samples was characterized by means of XRD,element analysis,IR and TPR.The results of NH 3 TPD and Py IR show that the samples not only contain Bronsted acid sites,but also contain Lewis acid sites,and Lewis acid sites in samples Al PGaNiS take a greater share;The acidity of Al PGaNiS is higher than that of H GaNiS.The catalytic properties on cumene cracking and n herane hydroisomerization are characterized.The results show that the activity of Cross linking Ga Ni Substituted saponite and selectivity of isomerization are better.