US1974777A - Method of treating lubricating oils - Google Patents
Method of treating lubricating oils Download PDFInfo
- Publication number
- US1974777A US1974777A US317485A US31748528A US1974777A US 1974777 A US1974777 A US 1974777A US 317485 A US317485 A US 317485A US 31748528 A US31748528 A US 31748528A US 1974777 A US1974777 A US 1974777A
- Authority
- US
- United States
- Prior art keywords
- oil
- residue
- stock
- neutral
- cracked petroleum
- 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 - Lifetime
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M171/00—Lubricating compositions characterised by purely physical criteria, e.g. containing as base-material, thickener or additive, ingredients which are characterised exclusively by their numerically specified physical properties, i.e. containing ingredients which are physically well-defined but for which the chemical nature is either unspecified or only very vaguely indicated
- C10M171/007—Coloured or dyes-containing lubricant compositions
Definitions
- red oils have often been produced by blending bright stock with the neutral or pale oil stock.
- the addition of the bright stock increases the carbon residue and also increases the cost of production.
- the method of procedure consists in thoroughly agitating a quantity of a cracked petroleum residue or fractions of same (for example, a residue from the well known Dubbs cracking process) with a quantity of neutral stock and then subjecting the mixture after thorough agitation to an acid treatment, followed by a contact treatment with filter clay.
- a quantity of a cracked petroleum residue or fractions of same for example, a residue from the well known Dubbs cracking process
- the lubricating oil is given a red tint and a greenish fluorescence. Sincethe coloring of the oil results from the color bodies obtained from the cracked petroleum residue there is no appreciable modification of the normal viscosity or the flash and firepoint of the oil.
- cracked petroleum residue refers to a particular product, the residue from a cracking process operating on crude petroleum or topped crude.
- the method here disclosed is one that may be very economically operated and that the result of the process is a lubricating oil having a satisfactory color and which oil is lower in carbon content than the red oils made under many of the present known processes.
- the introduction of the coloring matter as above pointed out does not appreciably modify the normal viscosity nor does it change the flash or fire point of the oil.
- a method of treating lubricating oil which consists in mixing and agitating neutral oil stock with a cracked petroleum residue, and then subjecting the mixture to an acid treatment, and then subjecting the mixture to a contact treatment with filter clay.
- a method of treating lubricating oil which consists in mixing and agitating neutral oil stock with a cracked petroleum residue, and then subjecting the mixture to an acid treatment, and then subjecting the mixture to a neutralizing treatment.
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
Patented Sept. 25, 1934 UNITED STATES PATENT OFFICE METHOD OF TREATING LUBRICATING OILS tion of Delaware No Drawing.
Application November 5, 1928,
Serial No. 317,485
7 Claims. (Cl. 196-151) This invention relates to improvements in a method of treating lubricating oils.
Heretofore red oils have often been produced by blending bright stock with the neutral or pale oil stock. The addition of the bright stock increases the carbon residue and also increases the cost of production.
It is the object of the present invention to provide a process of treating lubricating oils to produce from a neutral stock an oil which has a red tint with a greenish fluorescence by utilizing the coloring matter contained in a cracked petroleum residue to impart the color to the neutral oil stock.
The method of procedure consists in thoroughly agitating a quantity of a cracked petroleum residue or fractions of same (for example, a residue from the well known Dubbs cracking process) with a quantity of neutral stock and then subjecting the mixture after thorough agitation to an acid treatment, followed by a contact treatment with filter clay. As a result of this procedure the lubricating oil is given a red tint and a greenish fluorescence. Sincethe coloring of the oil results from the color bodies obtained from the cracked petroleum residue there is no appreciable modification of the normal viscosity or the flash and firepoint of the oil.
As a detailed method of procedure it has been found preferable to first draw of! the cracked residue of a petroleum cracking process into a separate vessel or container while hot and to subject the residue to a distillation to drive off the lighter fractions. This prevents lowering the flash and fire point of the finished lubricating oil when the residue is mixed with the neutral stock. The residue stripped of the lighter fractions is then introduced while hot into a body of neutral oil stock of two to three times its volume and the mixture is thoroughly agitated. This mixture is then introduced into the main body of neutral oil stock to be treated so that the amount of the residue in the main body of neutral stock will vary between the limits of 0.10% to 10% by volume. The mixture is then given an acid treatment followed by a contact treatment with filter clay.
The term cracked petroleum residue as used here, and as understood in the art, refers to a particular product, the residue from a cracking process operating on crude petroleum or topped crude.
It will be understood, therefore, that the method here disclosed is one that may be very economically operated and that the result of the process is a lubricating oil having a satisfactory color and which oil is lower in carbon content than the red oils made under many of the present known processes. The introduction of the coloring matter as above pointed out does not appreciably modify the normal viscosity nor does it change the flash or fire point of the oil.
What I claim and desire to secure by Letters Patent is:
1. A method of treating lubricating oil which consists in mixing and agitating neutral oil stock with a cracked petroleum residue, and then subiecting the mixture to an acid treatment, and then subjecting the mixture to a contact treatment with filter clay.
2. The method of treating lubricating oil to impart thereto a red tint and a greenish fluorescence which consists in mixing with a neutral oil stock a quantity of a cracked petroleum residue, and then finishing the oil by an acid and contact treatment.
3. The process of treating a neutral oil stock which consists in adding thereto a quantity of a cracked petroleum residue from which the light fractions have been stripped, thoroughly agitating the mixture, and finishing the oil by an acid and contact treatment.
4. The continuous process of producing a lubricating oil having a red tint and greenish fluorescence which consists in'agitating a quantity of neutral oil stock with a cracked petroleum residue while hot, and then finishing the oil by a contact treatment with filter clay.
5. The continuous process of producing a lubricating oil which consists in combining a quantity of neutral oil stock in the unfinished state with a cracked petroleum residue, the volume of the cracked petroleum residue being 10% or less of the total volume, and then finishing the oil by a contact treatment with filter clay.
6. A method of treating lubricating oil which consists in mixing and agitating neutral oil stock with a cracked petroleum residue, and then subjecting the mixture to an acid treatment, and then subjecting the mixture to a neutralizing treatment.
7. As a new article of manufacture, lubricating oil containing a cracked petroleum residue, said cracked petroleum residue having color bodies imparting a green fluorescence to the oil and producing no appreciable modification of the normal viscosity or the flash and firepoint of the oil.
WILLIAM O. KEELING.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US317485A US1974777A (en) | 1928-11-05 | 1928-11-05 | Method of treating lubricating oils |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US317485A US1974777A (en) | 1928-11-05 | 1928-11-05 | Method of treating lubricating oils |
Publications (1)
Publication Number | Publication Date |
---|---|
US1974777A true US1974777A (en) | 1934-09-25 |
Family
ID=23233866
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US317485A Expired - Lifetime US1974777A (en) | 1928-11-05 | 1928-11-05 | Method of treating lubricating oils |
Country Status (1)
Country | Link |
---|---|
US (1) | US1974777A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519868A (en) * | 1947-04-16 | 1950-08-22 | Sinclair Refining Co | Coloring material for lubricating oils |
-
1928
- 1928-11-05 US US317485A patent/US1974777A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2519868A (en) * | 1947-04-16 | 1950-08-22 | Sinclair Refining Co | Coloring material for lubricating oils |
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