JPS573888A - Preparation of electric insulation oil - Google Patents

Preparation of electric insulation oil

Info

Publication number
JPS573888A
JPS573888A JP7660380A JP7660380A JPS573888A JP S573888 A JPS573888 A JP S573888A JP 7660380 A JP7660380 A JP 7660380A JP 7660380 A JP7660380 A JP 7660380A JP S573888 A JPS573888 A JP S573888A
Authority
JP
Japan
Prior art keywords
oil
crude oil
electric insulation
base crude
distillation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP7660380A
Other languages
Japanese (ja)
Other versions
JPS5932512B2 (en
Inventor
Takumi Akata
Takashi Kaimai
Sanpo Kusayanagi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eneos Corp
Original Assignee
Nippon Mining Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Mining Co Ltd filed Critical Nippon Mining Co Ltd
Priority to JP7660380A priority Critical patent/JPS5932512B2/en
Publication of JPS573888A publication Critical patent/JPS573888A/en
Publication of JPS5932512B2 publication Critical patent/JPS5932512B2/en
Expired legal-status Critical Current

Links

Abstract

PURPOSE: To provide an electric insulation oil having a small S content and high oxidation stability, by hydrogenation refining followed by solvent refining before the dewaxing treatment of a specific distillate of a paraffin base crude oil or mixture base crude oil.
CONSTITUTION: A distillate having a boiling point (converted into normal pressure) of 250W400°C which is obtained by the distillation at normal pressure of paraffin base crude oil or mixture base crude oil or by the distillation at a reduced pressure of residual oil of the normal pressure distillation of the same crude oil is hydrogenation-refined in the presence of a catalyst such as Ni or the like supported on a carrier such as alumina, etc. at 310W370°C to desulfurize 50W80wt%, and then the resulting hydrogenation refined oil is desulfurized 40W80wt% by the solvent refining employing furfural, etc. to obtain raffinate. Subsequently, the raffinate is subjected to a solvent dewaxing treatment and, if necessary, to a clay treatment in succession to obtain an electric insulation oil having an S content of 0.1W 0.4wt%.
COPYRIGHT: (C)1982,JPO&Japio
JP7660380A 1980-06-09 1980-06-09 Method for producing electrical insulating oil Expired JPS5932512B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7660380A JPS5932512B2 (en) 1980-06-09 1980-06-09 Method for producing electrical insulating oil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7660380A JPS5932512B2 (en) 1980-06-09 1980-06-09 Method for producing electrical insulating oil

Publications (2)

Publication Number Publication Date
JPS573888A true JPS573888A (en) 1982-01-09
JPS5932512B2 JPS5932512B2 (en) 1984-08-09

Family

ID=13609896

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7660380A Expired JPS5932512B2 (en) 1980-06-09 1980-06-09 Method for producing electrical insulating oil

Country Status (1)

Country Link
JP (1) JPS5932512B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633092A (en) * 1986-06-23 1988-01-08 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Production of lubricant base oil
JPH01161090A (en) * 1987-12-18 1989-06-23 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Production of insulating oil
CN104629798A (en) * 2015-02-06 2015-05-20 北京中科诚毅科技发展有限公司 Oil and coal hybrid hydrogenation refining technique and equipment

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61196816U (en) * 1985-05-31 1986-12-08
JPH02121350U (en) * 1989-03-14 1990-10-02

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS633092A (en) * 1986-06-23 1988-01-08 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Production of lubricant base oil
JPH01161090A (en) * 1987-12-18 1989-06-23 Kiyouseki Seihin Gijutsu Kenkyusho:Kk Production of insulating oil
CN104629798A (en) * 2015-02-06 2015-05-20 北京中科诚毅科技发展有限公司 Oil and coal hybrid hydrogenation refining technique and equipment
WO2016124148A1 (en) * 2015-02-06 2016-08-11 北京中科诚毅科技发展有限公司 Coal and oil hybrid hydrogenation refining technique and device
US10344238B2 (en) 2015-02-06 2019-07-09 Catech Technology Co., Ltd. Coal and oil co-hydrotreating processing technology and equipment

Also Published As

Publication number Publication date
JPS5932512B2 (en) 1984-08-09

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