Electrical insulating oil comprising improved fraction

Details Electrical insulating oil comprising improved fraction Electrical insulating oil comprising improved fraction

H - Electricity

01

B

31/102

H01B 3/22 (2006.01)

Patent

CA 1315087

ABSTRACT OF THE DISCLOSURE An electrical insulating oil mainly comprising a fraction having excellent low temperature characteristics, said fraction being prepared by bringing a by-product oil fraction containing diphenylmethane and 1,1-diphenylethane into contact with alkylbenzenes in the presence of a ZSM-5 type synthetic zeolite catalyst, then recovering a fraction containing 1,1-diphenylethane and other diarylalkanes and containing mainly components having boiling points in the range of 270 to 300°C as atmospheric pressure basis, said by-product oil fraction being by-produced in the preparation of ethylbenzene by alkylating benzene with ethylene.

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