GB634402A - Improved process for the treatment of petroleum hydrocarbon and synthetic lubricating oils which are corrosive to copper - Google Patents
Improved process for the treatment of petroleum hydrocarbon and synthetic lubricating oils which are corrosive to copperInfo
- Publication number
- GB634402A GB634402A GB13594/47A GB1359447A GB634402A GB 634402 A GB634402 A GB 634402A GB 13594/47 A GB13594/47 A GB 13594/47A GB 1359447 A GB1359447 A GB 1359447A GB 634402 A GB634402 A GB 634402A
- Authority
- GB
- United Kingdom
- Prior art keywords
- treatment
- oils
- sulphite
- treated
- copper
- 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
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G29/00—Refining of hydrocarbon oils, in the absence of hydrogen, with other chemicals
- C10G29/06—Metal salts, or metal salts deposited on a carrier
- C10G29/10—Sulfides
Landscapes
- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
Acid-treated petroleum hydrocarbon oils are treated in the neutral state (and optionally after treatment with clay), with a normal alkali metal sulphite, whereby their corrosiveness to copper is reduced. The sulphite is preferably in aqueous solution and the treatment may be carried out at a temperature of 40-100 DEG C., and at atmospheric or raised pressure. Oils specified are those which are more viscous than gasoline, including petroleum oils, a number of which are specified, synthetic lubricating oil of the simple or polymerized ester type, or mixtures of both. Examples of ester-type lubricating oils are acryloid polymers having a molecular weight of 8,000-10,000 polymerized esters of acrylic or fumaric acid with saturated aliphatic alcohols having 8-10 carbon atoms and co-polymers of maleates with fumarates or with vinyl acetate. In the examples, a paraffinic base oil, a compounded hydraulic oil, and a Mid-Continent base white oil are treated with aqueous sodium sulphite after acid treatment and neutralization. An example is given also of the treatment of a synthetic lubricant (di-2-ethylhexyl sebacate) with aqueous sodium sulphite. The Specification as open to inspection under Sect. 91 refers also to the treatment of the oils with alkaline earth metal sulphites, either dry or in aqueous suspension. This subject-matter does not appear in the Specification as accepted.ALSO:Synthetic lubricating oils of the simple or polymerized ester type which are more viscous than gasoline are treated in the neutral state with a normal alkali metal sulphite, whereby their corrosiveness to copper is reduced. Examples of oils which may be treated are acryloid polymers having a molecular weight of 8,000-10,000, polymerized esters of acrylic or fumaric acid with saturated aliphatic alcohols having 8-10 carbon atoms, and copolymers of maleates with fumarates or with vinyl acetate. The sulphite is preferably in aqueous solution and the treatment may be carried out at a temperature of 40-100 DEG C., and at atmospheric or raised pressure. The Specification as open to inspection under Sect. 91 refers also to the treatment of the oils with alkaline-earth metal sulphites. This subject-matter does not appear in the Specification as accepted.ALSO:Synthetic lubricating oils of the ester type which are more viscous than gasoline are treated in the neutral state with a normal alkali metal sulphite, whereby their corrosiveness to copper is reduced. The sulphite is preferably in aqueous solution and the treatment may be carried out at a temperature of 40-100 DEG C., and at atmospheric or raised pressure. An example is given of the treatment of di-2-ethylhexyl sebacate with aqueous sodium sulphite. The Specification as open to inspection under Sect. 91 refers also to the treatment of the oils with alkaline earth metal sulphites. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US634402XA | 1946-09-10 | 1946-09-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB634402A true GB634402A (en) | 1950-03-22 |
Family
ID=22049200
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13594/47A Expired GB634402A (en) | 1946-09-10 | 1947-05-20 | Improved process for the treatment of petroleum hydrocarbon and synthetic lubricating oils which are corrosive to copper |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB634402A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007096709A3 (en) * | 2005-12-30 | 2007-11-22 | Abb Research Ltd | Improved method for on-line removal of corrosive components of transformer oil |
-
1947
- 1947-05-20 GB GB13594/47A patent/GB634402A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007096709A3 (en) * | 2005-12-30 | 2007-11-22 | Abb Research Ltd | Improved method for on-line removal of corrosive components of transformer oil |
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