Electrical insulating oil and oil-filled electrical appliances
    83.
    发明授权
    Electrical insulating oil and oil-filled electrical appliances 失效
    电绝缘油和充油电器

    公开(公告)号:US4642730A

    公开(公告)日:1987-02-10

    申请号:US760402

    申请日:1985-07-30

    IPC分类号: H01B3/20 H01B3/22 H01G4/22

    CPC分类号: H01B3/22

    摘要: An improved electrical insulating oil and oil-filled electrical appliances impregnated therewith. The electrical insulating oil can be produced inexpensively but has excellent electrical characteristics and it comprises a fraction having boiling points in the range of 350.degree. to 450.degree. C. that is prepared by disproportionating diarylalkane or a hydrocarbon mixture mainly containing the same at temperatures in the range of 20.degree. to 500.degree. C. in the presence of a disproportionation catalyst, said diarylalkane having boiling points in the range of 260.degree. to 320.degree. C.

    摘要翻译: 改进的电绝缘油和浸油的电油器具。 电绝缘油可以廉价地生产,但是具有优异的电特性,并且它包括沸点在350-450℃范围内的馏分,其通过歧化二芳基烷烃或主要含有它们的烃混合物 在歧化催化剂存在下,在20〜500℃的范围内,所述二芳基烷烃的沸点在260〜320℃的范围内。

    Oil-filled capacitor
    84.
    发明授权
    Oil-filled capacitor 失效
    充油电容器

    公开(公告)号:US4591948A

    公开(公告)日:1986-05-27

    申请号:US762931

    申请日:1985-08-06

    IPC分类号: H01G4/22 H01G4/32

    CPC分类号: H01G4/221

    摘要: An oil-filled capacitor which can be made small in size and has excellent electrical characteristics. The capacitor of the present invention is characterized in that it is made by impregnating a film-wound capacitor element with 1-phenyl-1-(benzylphenyl)ethane, at least a part of the dielectric material of said capacitor being made of a plastic film.

    摘要翻译: 可以制造尺寸小,电气特性优异的充油电容器。 本发明的电容器的特征在于,通过用1-苯基-1-(苄基苯基)乙烷浸渍卷绕电容器元件,所述电容器的电介质材料的至少一部分由塑料膜 。

    Process for recovering alkyl sulfonic acid from photosulfoxidation
reaction mixture
    88.
    发明授权
    Process for recovering alkyl sulfonic acid from photosulfoxidation reaction mixture 失效
    从光氧化反应混合物中回收烷基磺酸的方法

    公开(公告)号:US3988218A

    公开(公告)日:1976-10-26

    申请号:US319319

    申请日:1972-12-29

    IPC分类号: B01D3/10 C07C303/42

    CPC分类号: C07C303/42

    摘要: A process for recovering alkyl sulfonic acid from a photosulfoxidation reaction mixture of an alkane comprising the steps of: separating a major portion of the unreacted alkane contained in said reaction mixture by settling; subjecting thus treated reaction mixture to steam-distillation to remove the remaining portion of the unreacted alkane together with the sulfur dioxide therefrom; subsequently separating the sulfuric acid without heating from the resulting mixture by settling, thereby recovering the alkyl sulfonic acids.

    摘要翻译: 一种从烷烃的光氧化反应混合物中回收烷基磺酸的方法,包括以下步骤:通过沉降分离所述反应混合物中所含的大部分未反应的烷烃; 将如此处理的反应混合物经蒸汽蒸馏从其中除去剩余部分的未反应的烷烃与二氧化硫; 随后通过沉降从所得混合物中分离硫酸而不加热,从而回收烷基磺酸。