文献类型：期刊文献

中文题名：两种工业用Al_2O_3吸附剂的结构和性质的研究

英文题名：Studies on the Structure and Properties of Two Aluminas Used as Industrial Adsorbent

作者：穆布尔威[1];陈绍洲[1];王贵山[2];徐慧珍[2]

机构：[1]华东理工大学石油加工研究所;[2]浙江工学院

年份：1993

卷号：19

期号：6

起止页码：686

中文期刊名：华东化工学院学报

收录：Scopus;CSCD:【CSCD2011_2012】；

语种：中文

中文关键词：氧化铝;吸附;晶体结构;孔分布;酸性

外文关键词：alumina; adsorption; crystal structure; pore size distribution; acidity rocessing Research Center, ECUST

摘要：对用于净化对苯二甲酸生产中循环氮气的氧化铝吸附剂G(德国制)和W(国产),进行了结构和性质的研究。根据经不同温度熔烧的样品的X光衍射图,确定G的主要物相为η-Al_2O_3,混有少量薄水铝石;W的主要物相为薄水铝石,混有少量拟薄水铝石。这一结论又通过再水合后样品的X光衍射图得到肯定。这两种氧化铝吸附剂在孔结构,表面性质和吸附性能上都显示出明显的差别。故在应用时不宜轻易互换替代。
Two alumina samples, G and W, are used as industrial adsorbents for purification of reused nitrogen in TPA units. Alumina G is made in Germany and alumina W is made in China. The results from X-ray diffraction data of two series of samples calcined at different temperature show that the crystal structure of alumina G is η-Al_2O_3 with a little beohmite and the crystal structure of alumina W is beohmite with a little pseudo-beohmite, The rehydration of two samples is employed to help distinguish between γ-and η-Al_2O_3. The differences are observed between two samples in pore structure, surface properties and adsorption behavior. Alumina W should be regarded as a different kind sample from alumina G. In application, it should be careful in replacement of alumina G by alumina W.