Y型沸石耐酸性能较弱,直接用无机酸使其脱铝时,晶体结构易遭破坏.本文研究了无机酸与配合剂共同作用下Y型沸石的脱铝. 将温州催化剂厂产NaY用N_4Cl交换两次,制备出交换度约为75％的(NH_4Na)Y.(NH_4Na)Y以在水溶液或醋酸铵缓冲液中预热到所需温度,不断搅拌下滴加脱铝剂,并反应一段时间.反应停止后,用热水洗涤产物数遍,经离心分离,脱铝沸石在120℃烘干,备用.沸石的组分分析采用湿法化学法.取微量沸石与KBr混合后压片,测沸石的 The Y-type zeolite has weak acid resistance, and the crystal structure is easily destroyed when it is directly de-aluminated with inorganic acid.In this paper, the dealumination of Y-type zeolite under the co-action of inorganic acid and complexing agent is studied in this paper.With Na_4Cl (NH_4Na) Y. (NH_4Na) Y to prepare the exchange rate of about 75% Y in aqueous solution or ammonium acetate buffer to the desired temperature, stirring constantly dropping the dealumination agent, and the reaction of a Time After the reaction was stopped, the product was washed with hot water several times, after centrifugation, dealuminated zeolite drying at 120 ° C, the back.Wemolite composition analysis using wet chemical method.After taking a small amount of zeolite and KBr mixed tablet, Measured zeolite