Electrical insulating oil
    19.
    发明授权
    Electrical insulating oil 失效
    电绝缘油

    公开(公告)号:US3640868A

    公开(公告)日:1972-02-08

    申请号:US3640868D

    申请日:1970-04-01

    CPC classification number: H01B3/22

    Abstract: The invention relates to an electrical insulating oil, resistant to oxidation and sludging, which consists essentially of a blend of about 1 to about 25 percent by volume of a solvent-extracted residue of a naphthenic petroleum distillate oil and about 75 to about 99 percent by volume of a hydrogenated naphthenic petroleum distillate oil. The solvent-extracted residue is obtained by contacting a naphthenic petroleum distillate oil with a solvent such as furfural or nitrobenzene. The hydrogenated naphthenic petroleum distillate oil is obtained by contacting a naphthenic petroleum distillate oil with hydrogen in the presence of a catalyst such as, for example, sulfides or oxides of molybdenum and at least two iron group metals.

    Abstract translation: 本发明涉及一种耐氧化和阻塞的电绝缘油,其基本上由约1至约25体积%的溶剂萃取的环烷烃石油馏出油的残留物和约75至约99%的 氢化环烷烃石油馏分油的体积。 溶剂萃取的残留物是通过使环烷烃石油馏出油与溶剂如糠醛或硝基苯接触而获得的。 氢化环烷烃石油馏出油是通过使环烷烃石油馏分油与氢在催化剂例如硫化物或钼的氧化物和至少两种铁族金属的存在下接触而获得的。

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