Process for converting pyrolysis gasoline to benzene and
ethylbenzene-lean xylenes
    3.
    发明授权
    Process for converting pyrolysis gasoline to benzene and ethylbenzene-lean xylenes 失效
    将热解汽油转化为苯和乙苯稀二甲苯的方法

    公开(公告)号:US4150061A

    公开(公告)日:1979-04-17

    申请号:US849606

    申请日:1977-11-08

    IPC分类号: C10G45/64 C07C3/62

    CPC分类号: C10G45/64 C10G2400/02

    摘要: Fractionated pyrolysis gasoline containing toluene, xylenes, ethylbenzenes, C.sub.7 -C.sub.9 paraffins, olefins and naphthenes are selectively hydrodealkylated and transalkylated to give ethylbenzene-lean xylenes and benzene in the presence of a catalyst comprising a tungsten/molybdenum component of WO.sub.3 and MoO.sub.3 and an acidic component of 60 (wt)% of mordenite and 40 (wt)% of catalytically active alumina.

    摘要翻译: 在包含WO 3和MoO 3的钨/钼组分的催化剂存在下,含有甲苯,二甲苯,乙基苯,C 7 -C 9链烷烃,烯烃和环烷烃的分馏裂解汽油选择性加氢脱烷基化和烷基转移,得到含苯基苯的二甲苯和苯, 60(wt)%的丝光沸石和40(wt)%的催化活性氧化铝的组分。

    Process for converting aromatic aldehydes to phenolic compounds
    6.
    发明授权
    Process for converting aromatic aldehydes to phenolic compounds 失效
    将芳族醛转化为酚类化合物的方法

    公开(公告)号:US4094912A

    公开(公告)日:1978-06-13

    申请号:US738084

    申请日:1976-11-02

    IPC分类号: C07C37/56 C07C39/04

    CPC分类号: C07C37/56

    摘要: Aromatic aldehydes wherein the aldehyde group is directly attached to the aromatic ring are oxidized directly to phenolic compounds in the vapor phase. Tar and carbonaceous product formation are minimized by the method of preheating and mixing the reactants and by a rapid reaction temperature quench of the reaction mixture to below 0.degree. C. Mixing temperature is 300.degree.-350.degree. C. and reaction temperature is 400.degree.-600.degree. C. at 1-10 atmosphere pressure.

    摘要翻译: 其中醛基直接连接到芳环上的芳族醛直接氧化成气相中的酚类化合物。 通过预热和混合反应物的方法,并将反应混合物的快速反应温度骤冷至0℃,将焦油和碳质产物形成最小化。混合温度为300-350℃,反应温度为400℃, 600℃,1-10个大气压。

    Process for selective ethyl scission of ethylaromatics to methylaromatics
    9.
    发明授权
    Process for selective ethyl scission of ethylaromatics to methylaromatics 失效
    乙基芳烃选择性乙基断裂为甲基芳族化合物的方法

    公开(公告)号:US4177219A

    公开(公告)日:1979-12-04

    申请号:US899314

    申请日:1978-04-24

    IPC分类号: B01J23/60 C07C4/12 C07C3/58

    摘要: Ethyl aromatics contained in the C.sub.9 aromatic fraction from fractionated reformate are selectively converted to xylenes via ethyl scission in the presence of a catalyst comprising a carrier of highly purified gamma alumina containing essentially no silica and of a surface area of at least 100 m.sup.2 /g and a metal selected from the group consisting of a Group VIII metal and a Group VIII metal promoted with zinc.

    摘要翻译: 包含在分馏的重整产物中的C9芳族馏分中的乙基芳族化合物在催化剂存在下通过乙基断裂被选择性地转化成二甲苯,所述催化剂包含基本上不含二氧化硅并且表面积至少为100m 2 / g的高度纯化的γ氧化铝的载体, 选自由锌促进的第VIII族金属和第Ⅷ族金属组成的组中的金属。