会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 2. 发明授权
    • AMS-1B crystalline borosilicate molecular sieve-based catalyst
compositions and process for toluene alkylation
    • AMS-1B结晶硼硅酸盐分子筛催化剂组合物和甲苯烷基化方法
    • US4673767A
    • 1987-06-16
    • US801471
    • 1985-11-25
    • Tayseer S. NimryRichard E. De Simone
    • Tayseer S. NimryRichard E. De Simone
    • C07C2/66C07C2/68
    • C07C2/66C07C2529/86Y02P20/52
    • Described are catalyst compositions comprising a HAMS-1B crystalline borosilicate molecular sieve incorporated into an inorganic matrix, which have been impregnated with a magnesium compound or with both a phosphorus compound and a magnesium compound, said impregnated compositions having improved para-selectively for toluene alkylation. Such impregnated compositions, when used for the alkylation of toluene using methanol, methylether, ethylene, or propylene yield dialkylbenzene products containing a higher proportion of the para-isomer than corresponding unimpregnated borosilicate-based compositions. When toluene is alkylated with propylene using the impregnated catalyst compositions of this invention, a significant increase in para-selectivity among the cymene isomers is obtained at high total-cymene/n-propyltoluene ratios.
    • 描述了催化剂组合物,其包含结合到无机基质中的HAMS-1B结晶硼硅酸盐分子筛,其已经用镁化合物或磷化合物和镁化合物浸渍,所述浸渍的组合物具有改进的对甲苯烷基化选择性。 当使用甲醇,甲基醚,乙烯或丙烯烷基化甲苯时,这种浸渍的组合物产生的二烷基苯产物含有比相应的未浸渍的硼硅酸盐基组合物更高比例的对位异构体。 当使用本发明的浸渍催化剂组合物用丙烯烷基化甲苯时,在高的总甲基异丙基苯胺/正丙基甲苯比例下,可以获得在异氰酸酯异构体之间对位选择性的显着增加。