GB143193A - Improved process for the manufacture of transformer oil - Google Patents
Improved process for the manufacture of transformer oilInfo
- Publication number
- GB143193A GB143193A GB4591/20A GB459120A GB143193A GB 143193 A GB143193 A GB 143193A GB 4591/20 A GB4591/20 A GB 4591/20A GB 459120 A GB459120 A GB 459120A GB 143193 A GB143193 A GB 143193A
- Authority
- GB
- United Kingdom
- Prior art keywords
- oil
- kilo
- distilled
- dissolved
- manufacture
- 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.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/20—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils
- H01B3/22—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances liquids, e.g. oils hydrocarbons
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Phenol-free anthracene oil B.P. 300-350 DEG C. dissolved or not in an inactive solvent is oxidized as by bichromate or permanganate and sulphuric acid at low temperatures to obtain fluid oils capable of use as transformer oils. In an example, 100 kilo oil are stirred at -15 to -20 DEG C. for about an hour with bichromate mixture, and allowed to stand until atmspheric temperature is reached. The supernatant oil is separated from the resin deposited, refined with 2-3 per cent of 66 per cent sulphuric acid, washed, and distilled in vacuo. In a second example, 100 kilo oil are dissolved in 100 kilo benzine and treated at 0-5 DEG C.; the solvent is distilled off, and the oil treated as in the first example.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE143193X | 1919-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB143193A true GB143193A (en) | 1921-02-03 |
Family
ID=5669602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4591/20A Expired GB143193A (en) | 1919-05-15 | 1920-02-14 | Improved process for the manufacture of transformer oil |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB143193A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2932677A (en) * | 1958-01-08 | 1960-04-12 | Continental Oil Co | Purification of alkyl aryl hydrocarbons |
| US2944011A (en) * | 1956-12-10 | 1960-07-05 | Sun Oil Co | Sweetening hydrocarbons with dried chromium oxide |
-
1920
- 1920-02-14 GB GB4591/20A patent/GB143193A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2944011A (en) * | 1956-12-10 | 1960-07-05 | Sun Oil Co | Sweetening hydrocarbons with dried chromium oxide |
| US2932677A (en) * | 1958-01-08 | 1960-04-12 | Continental Oil Co | Purification of alkyl aryl hydrocarbons |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB143193A (en) | Improved process for the manufacture of transformer oil | |
| US2304280A (en) | Process of recovering sulphuric acid from spent sulphuric acid | |
| GB589150A (en) | Improvements in or relating to the manufacture of oils for electrical insulating purposes | |
| US1494879A (en) | Process of manufacturing carbazol derivatives | |
| GB352164A (en) | Improvements in the purification of crude hydrocarbons or their derivatives | |
| GB579787A (en) | Improvements in or relating to the refining of crude acrylonitrile | |
| US2108448A (en) | Purification of naphthenic acids | |
| GB435965A (en) | Process for the treatment of benzols, petrols and other hydrocarbons | |
| GB163271A (en) | Process for the production of oily bodies of high boiling point from aromatic hydrocarbon mixtures | |
| GB193029A (en) | Process for purifying mineral oils | |
| US2185406A (en) | Process of refining hydrocarbon oils | |
| GB233734A (en) | Improvements in and relating to processes for obtaining high percentage anthracene and carbazole from crude anthracene | |
| US2285100A (en) | Process for refining montan wax | |
| US1558446A (en) | Method of treating wood-tar oil | |
| US2069992A (en) | Method of refining rosin | |
| GB152470A (en) | Improvements in the purification of benzole or the like | |
| GB433867A (en) | Improvements in the manufacture and production of rubber mixtures | |
| GB212990A (en) | A process of separating oxidized fatty acids from non-oxidized fatty acids | |
| GB172048A (en) | Improved manufacture of tanning agents | |
| GB560695A (en) | Purification of 2-mercaptoarylenethiazoles | |
| GB156668A (en) | Manufacture of artificial resins | |
| GB146898A (en) | Improved process for converting tar oils into neutral oils suitable for lubricating purposes | |
| GB427042A (en) | Improvements in the manufacture and production of lubricating oils | |
| GB359291A (en) | The manufacture of new motor spirit | |
| GB275652A (en) | Improvements relating to varnishes, shoe-creams and like preparations |