Process for manufacture of stabilized lubricating oil with elemental
sulfur
    208.
    发明授权
    Process for manufacture of stabilized lubricating oil with elemental sulfur 失效
    用元素硫制造稳定化润滑油的方法

    公开(公告)号:US4021334A

    公开(公告)日:1977-05-03

    申请号:US693828

    申请日:1976-06-08

    Abstract: A stabilized lubricating oil resistant to oxidation and sludge formation upon exposure to an oxidative environment is prepared without forming undesirable color bodies therein by the steps (1) contacting the lubricating oil stock with a small amount of added elemental sulfur of from about 0.05 to about 1.0 percent by weight at a contact temperature of from about 25.degree. C. to about 130.degree. C. and (2) contacting the product of step (1) with hydrogen in the presence of alumina impregnated with at least about 10 weight percent MoO.sub.3 and at least about 2.5 weight percent CoO to remove any unreacted added elemental sulfur therefrom. The impregnated alumina catalyst of step (2) must have at least 50 percent of the pores with a pore diameter of 50 Angstrom Units or more.

    Abstract translation: 在暴露于氧化环境下,抗氧化和污泥形成的稳定的润滑油在不形成不期望的着色体的情况下通过步骤(1)使润滑油原料与少量添加的元素硫接触,其量为约0.05至约1.0 在约25℃至约130℃的接触温度下的重量百分比。和(2)在浸渍有至少约10重量%MoO 3的氧化铝存在下,和(2)使步骤(1)的产物与氢气接触, 至少约2.5重量%的CoO以除去任何未反应的添加的元素硫。 步骤(2)的浸渍氧化铝催化剂必须具有至少50%孔径为50埃或以上的孔。

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