Selective production of para-xylene
    83.
    发明授权
    Selective production of para-xylene 失效
    选择性生产对二甲苯

    公开(公告)号:US4100215A

    公开(公告)日:1978-07-11

    申请号:US727084

    申请日:1976-09-27

    申请人: Nai Y. Chen

    发明人: Nai Y. Chen

    IPC分类号: C07C2/86 C07C3/52

    摘要: Process for the selective production of paraxylene by methylaton of toluene in the presence of a catalyst comprising a crystalline aluminosilicate zeolite characterized by (1) a silica to alumina ratio of at least about 12, (2) a constraint index within the approximate range of 1 to 12 and (3) a crystal size greater than 1 micron.

    摘要翻译: 在包含结晶硅铝酸盐沸石的催化剂存在下,通过甲苯的甲基化选择性生产对二甲苯的方法,其特征在于(1)二氧化硅与氧化铝之比至少约为12,(2)约1到约1的约束指数 至12和(3)大于1微米的晶体尺寸。