Method for reactivating ruthenium catalyst
    61.
    发明授权
    Method for reactivating ruthenium catalyst 失效
    钌催化剂再生方法

    公开(公告)号:US6077983A

    公开(公告)日:2000-06-20

    申请号:US68204

    申请日:1998-04-30

    摘要: A method for recovering the activity of a ruthenium catalyst which comprises a step of bringing a ruthenium catalyst decreased in activity by its use in hydrogenation of an unsaturated organic compound into contact with oxygen in a liquid phase, and a step of maintaining the catalyst at a hydrogen partial pressure lower than that at the hydrogenation and a temperature not lower than a temperature lower by 50.degree. C. than the hydrogenation temperature.

    摘要翻译: PCT No.PCT / JP96 / 03026 Sec。 371日期:1998年4月30日 102(e)日期1998年4月30日PCT 1996年10月18日PCT公布。 公开号WO97 / 16249 日期1997年5月9日一种回收钌催化剂活性的方法,其包括使钌催化剂通过其在不饱和有机化合物的氢化中与液相中的氧接触而使活性降低的步骤,以及维持步骤 催化剂的氢分压低于氢化分压,温度不低于比氢化温度低50℃的温度。

    Method for pretreating a catalyst slurry and a method for the continuous
partial hydrogenation of a monocyclic aromatic hydrocarbon by using the
pretreated catalyst slurry
    63.
    发明授权
    Method for pretreating a catalyst slurry and a method for the continuous partial hydrogenation of a monocyclic aromatic hydrocarbon by using the pretreated catalyst slurry 失效
    用于预处理催化剂浆料的方法和通过使用预处理的催化剂浆料连续部分氢化单环芳烃的方法

    公开(公告)号:US5656761A

    公开(公告)日:1997-08-12

    申请号:US243398

    申请日:1994-05-16

    IPC分类号: B01J23/46 B01J37/03 C07C5/11

    摘要: A method for pretreating a slurry containing a ruthenium catalyst for use in the continuous partial hydrogenation of monocyclic aromatic hydrocarbons is disclosed. In this method, the above-mentioned slurry is heat-treated at a temperature of from 60.degree. to 180.degree. C. for at least 10 minutes while agitating. By using the pretreated catalyst slurry in the above-mentioned continuous partial hydrogenation, partial hydrogenation reaction products can be efficiently obtained without suffering from the excess mixing of the components of the catalyst slurry into an oil phase containing the partial hydrogenation reaction products, thereby enabling operations and facilities required for separation to be simplified.

    摘要翻译: 公开了一种用于预处理含有用于单环芳烃的连续部分氢化的钌催化剂的浆料的方法。 在该方法中,将上述浆料在60〜180℃的温度下搅拌至少10分钟进行热处理。 通过在上述连续部分氢化中使用预处理的催化剂浆料,可以有效地获得部分氢化反应产物,而不会使催化剂浆料的组分过量混合到含有部分氢化反应产物的油相中,从而使操作 分离所需的设施要简化。