8.
    发明专利
    失效

    公开(公告)号:JP3241593B2

    公开(公告)日:2001-12-25

    申请号:JP10271996

    申请日:1996-04-24

    IPC分类号: C07C4/16 C07C4/24 C07C15/50

    10.
    发明专利
    失效

    公开(公告)号:JPS5737568B1

    公开(公告)日:1982-08-10

    申请号:JP6860672

    申请日:1972-07-07

    IPC分类号: C07C4/16

    摘要: 1393904 Hydrocarbons HYDROCARBON RESEARCH Inc 12 July 1972 [26 July 1971] 32686/72 Heading C5E A relatively paraffin-free alkyl aromatic feed (defined) is subjected to thermal hydrodealkylation by pre-heating it together with relatively paraffin-free hydrogen (defined) and passing the mixture in a substantially unreacted state to a thermal hydrodealkylation zone and effecting hydrodealkylation in the presence of added paraffinic hydrocarbons. The alkyl aromatic feed is alkyl benzene, predominantly toluene or alkyl naphthalene, the added paraffins boiling in the C 3 -C 6 range, the reaction products being benzene and naphthalene respectively.