Process for producing phenyl ester, and catalyst
    3.
    发明授权
    Process for producing phenyl ester, and catalyst 有权
    苯酯生产方法和催化剂

    公开(公告)号:US06958407B2

    公开(公告)日:2005-10-25

    申请号:US10980238

    申请日:2004-11-04

    摘要: A phenyl ester is produced by allowing benzene, a carboxylic acid and molecular oxygen to react with each other in the presence of a catalyst comprising (A) palladium, (B) at least one element selected from elements of groups 13, 14, 15, and 16 and the fourth to sixth periods of the periodic table, and (C) at least one element selected from elements of groups 3, 4 and lanthanoid elements of the periodic table. Preferably, element (B) is selected from elements of group 16 and the fourth to sixth periods of the periodic table, and element (C) is contained in a metal oxide form in the catalyst. The catalytic activity can be maintained at a high level, and a phenyl ester is stably produced. The phenyl ester can be converted to phenol by a conventional procedure.

    摘要翻译: 通过使苯,羧酸和分子氧在催化剂的存在下反应来制备苯酯,所述催化剂包含(A)钯,(B)至少一种选自组13,14,15, 周期表的16和第四至第六周期,以及(C)选自元素周期表中的第3,4族和镧系元素的元素中的至少一种元素。 优选地,元素(B)选自元素周期表第16族元素和第四至第六元素元素,元素(C)以催化剂中的金属氧化物形式包含。 可以将催化活性维持在高水平,并稳定地生产苯酯。 苯基酯可以通过常规方法转化成苯酚。

    Catalytic reforming process with sulfur arrest
    8.
    发明授权
    Catalytic reforming process with sulfur arrest 失效
    催化重整过程与硫磺停止

    公开(公告)号:US5614082A

    公开(公告)日:1997-03-25

    申请号:US490037

    申请日:1995-06-13

    摘要: A catalyst system comprises a physical mixture of a conversion catalyst and a sulfur sorbent to accommodate small quantities of sulfur from a hydrocarbon feedstock. Preferably, the physical mixture comprises a sulfur-sensitive reforming catalyst protected from sulfur deactivation by a manganese-oxide catalyst. The invention shows substantial benefits over prior-art processes in catalyst utilization.

    摘要翻译: 催化剂体系包括转化催化剂和硫吸附剂的物理混合物以适应来自烃原料的少量硫。 优选地,物理混合物包含通过氧化锰催化剂保护硫失活的硫敏感的重整催化剂。 本发明显示出相对于现有技术中催化剂利用过程的优点。