一种有前途的分子筛

• 作 者: 韩立敏
• 出 处: 无机盐工业
• 发表日期: 1983年10期
• 关键词: 非极性有机溶剂 实验室阶段 高硅 吸附剂 催化剂 时钟 联合碳化物公司 研究工作 层型结构 磷酸铝

在过去三十年内,广泛用作工业吸附剂,催化剂和离子交换材料用的分子筛沸石经历了从富铝沸石到能强烈吸附非极性有机溶剂的高硅沸石的演变过程。至今,美国联合碳化物公司一个研究小组好像倒转了时钟,又研究出一种富铝分子筛。这种分子筛具有高硅沸石的性质。目前研究工作还处在实验室阶段。但可以预见到会有一些重要应用的潜力。

The molecular sieve zeolites widely used as industrial adsorbents, catalysts and ion exchange materials have undergone the evolution from Al-rich zeolites to high-silica zeolites that strongly adsorb non-polar organic solvents over the past three decades. To date, a research group at United Carbide Corp. seems to have reversed its clock and developed an aluminum-rich molecular sieve. Such molecular sieves have the properties of high silicalite. The current research work is still in the laboratory stage. But it is foreseeable that there will be potential for some important applications.