US2436589A - Compounded lubricated oil - Google Patents
Compounded lubricated oil Download PDFInfo
- Publication number
- US2436589A US2436589A US635112A US63511245A US2436589A US 2436589 A US2436589 A US 2436589A US 635112 A US635112 A US 635112A US 63511245 A US63511245 A US 63511245A US 2436589 A US2436589 A US 2436589A
- Authority
- US
- United States
- Prior art keywords
- oil
- hrs
- alcohols
- oils
- base
- 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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- 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
- C10M1/00—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
- C10M1/08—Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
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- C—CHEMISTRY; METALLURGY
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- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/04—Elements
- C10M2201/041—Carbon; Graphite; Carbon black
- C10M2201/042—Carbon; Graphite; Carbon black halogenated, i.e. graphite fluoride
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- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/06—Metal compounds
- C10M2201/063—Peroxides
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
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- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/10—Petroleum or coal fractions, e.g. tars, solvents, bitumen
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- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
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- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/026—Butene
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- C10M2207/027—Neutral salts thereof
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- C10M2207/125—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of eight up to twenty-nine carbon atoms, i.e. fatty acids
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- C10M2207/129—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of thirty or more carbon atoms
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- C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
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- C10M2209/084—Acrylate; Methacrylate
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Definitions
- This invention relates to a lubricating oil composition suitable particularly for use as a crankcase lubricant for internal combustion engines, improved as to stability and other properties by the addition of a novel improving agent.
- the additive of the present invention is most advantageously blended with lubricating oil base stocks in concentrations between the approximate limits of 0.02% and 1% and preferably from 0.1% to 0.5%, although larger amounts may be used for some purposes,
- concentrations between the approximate limits of 0.02% and 1% and preferably from 0.1% to 0.5%, although larger amounts may be used for some purposes,
- the exact amount of addition agent required for maximum improvement depends to a certain extent on the nature of the lubricating oil base stock and the general operating conditions of the engine in which the lubricating oil is to be employed.
- novel addition agent zin isopropyl xanthate
- isopropyl alcohol with potassium or sodium hydroxide and carbon djsulfide and reacting the resultant potassium salt with a soluble zinc salt in accordance with the following equations:
- Example 1 which follows, shows in detail a method of preparing zinc isopropyl xanthate.
- Base Oil Base Oil-l-OlfiZ er obviouslyy amyl phenol sulfide Base 0il+0 25 barium salt of tort.-octyl phenol sulfide.
- Base Oil +0.25% reaction product of phenol with sullurize i diiscbuivl nc A.
- l Ba e Oil-+0.25% nickel ethyl xanthaie
- Terposol reaction product ofalpha terpineol+ethylene oxide.
- addition agent of my invention may be used in mineral lubricating oils in conjunction with one or more of the following representative materials:
- Aluminum-calcium'mixed soap of fatty acid from The lubricating oil base stocks used in the compositions of this invention may be straight mineral lubricating oils or distillates derived from paraflinic, naphthenic, asphaltic or mixed base crudes, or, if desired, various-blended oils may be employed as well as residuals, particularly those from which asphaltic constituents have of oxides of carbon with hydrogen or by the hydrogenation of coal or its products. In certain instances cracking coil tar fractions and coal tar or shale oil distillates may also be used. Also, for special applications, animal, vegetable or fish oils or their hydrogenated or voltolized products may be employed, either alone or in admixture with mineral oils.
- the base stock chosen should normally be that oil which without the new additive present gives the optimum performance in the service contemplated.
- one advantage of the additive is that its use also makes feasible the employment of less satisfactory mineral oils or other oils, no strict rule can be laid down for thechoice of the base stock. Certain essentials must of course be observed.
- the 011 must possess the viscosity and volatility characterlstics known to be required for the service contemplated.
- the 011 must be a satisfactory solvent for the additive, although in some cases auxiliary solvent agents may-be used.
- the lubricating oils may vary considerably in viscosity and other properties depending upon the particular use for which they are desired, but they usually range from about 40 to 150 seconds Saybolt viscosity at 210 F.
- 0115 of higher viscosity index are often preferred, for example, up to '75 to 100, or
- agents may also be used, such as dyes, pour depressors, heat thickened fatty oils, sulfurized fatty oils, organometallic compounds, metallic or other soaps,
- sludge dispersers anti-oxidants, thickeners, viscosity index improvers, oiliness agents, resins, rubber, olefin polymers, voltolized fats, voltolized mineral oils, and/or voltolized waxes and colloidal solids such as graphite or zinc oxide, etc.
- Such other agents include dibenzyl dlsulfide, 2,6-tert.-buty1-4-methyl phenol, sulfurized sperm oil, diamyl trisulfide, voltolized sperm oil, polyisobutylene, polymerized lauryl methacrylate, sulfurized wax olenns, and the product of treating asulfur monochloridediisobutylene reaction product with phenol.
- Solvents and assisting agents such as esters, ketones,
- alcohols aldehydes, halogenated or nitrated compounds, and the like, may also be'employed.
- Additives which are particularly desirable as plasticizers and defoaming agents are the higher alcohols having eightor more carbon atoms and preferably 12 to 20 carbon atoms.
- the alcohols may be saturated straight and branched chain aliphatic alcohols such as octyl alcohol (CaHnOH) lauryl alcohol (C12H25OH) cetyl alcohol (CmHzsOH) heptadecyl alcohol (CmHasOH), stearyl alcohol, sometimes referred toas octadecyl alcohol,
- Products prepared synthetically by chemical processes may also be used such as alcohols prepared by the oxidation of petroleum hydrocarbons, e. g., pa'raffln wax, petrolatum, etc. These assisting agents serve to enhance the detergent and sludge dispersive qualities and aid the solubility of the metal-containing additives and at the same time impart oiliness'properties' to the lubricating oil compositions.
- the additive of the present invention may also be used in extreme pressure lubricants, engine flushing oils, industrial oils, process oils, general machinery oils, greases and rustpreventive compositions. Also its use in motor fuels containing tetraethyl lead or other anti-knock agents is contemplated.
Description
Patented Feb. 24, 1948 COMPOUNDED LUBRICATED on.-
John P. McDei-mott, Roselle, N. 1., assignor to Standard Oil Development Company, a corporation of Delaware No Drawing. Application December 14, 1945,
Serial No. 635,112 1 1Claim. (o1.252-3s.e)
This invention relates to a lubricating oil composition suitable particularly for use as a crankcase lubricant for internal combustion engines, improved as to stability and other properties by the addition of a novel improving agent.
The new addition agent for mineral lubricating oils used in accordance with the present infrom the corroding tendencies which have been observed when such well-known addition agents as metal derivatives of fatty acids, naphthenic acids, sulfonic acids, alcohols, phenols and the like have been used.
Generally the additive of the present invention is most advantageously blended with lubricating oil base stocks in concentrations between the approximate limits of 0.02% and 1% and preferably from 0.1% to 0.5%, although larger amounts may be used for some purposes, The exact amount of addition agent required for maximum improvement depends to a certain extent on the nature of the lubricating oil base stock and the general operating conditions of the engine in which the lubricating oil is to be employed.
The novel addition agent, zin isopropyl xanthate, may conveniently be prepared by treating isopropyl alcohol with potassium or sodium hydroxide and carbon djsulfide and reacting the resultant potassium salt with a soluble zinc salt in accordance with the following equations:
Example 1, which follows, shows in detail a method of preparing zinc isopropyl xanthate.
EXAMPLE 1 propanol-2 and 112 g. (2 mols) of KOH. To this stirred solution 152 g. (2 mols) of CS: was added over a period of one hour. The reaction was exothermic and frequent cooling with water was required to. prevent the temperature from rising substantially above 20 C. After stirring for one hour the reaction mixture was filtered and the resulting yellow solid was placed in crystaliizing dishes for drying on the steam bath. After 2 hours of such drying the product was placed in the vacuum oven overnight. 260 g. of a light yellow product consisting of potassium isopropylxanthate was obtained (75% yield) 68.2 g. (0.5 moi) of ZnClz was dissolved in 600 cc. of water acidified with 2 drops of hydrochloric acid. This solution was added, with stirring, to a solution of 1'74 g, (1 mol) of the potassium isopropyl xanthate prepared as described above in 2.5 l. of water. The resultant precipitate was filtered, washed with distilled water and then with methyl alcohol. It was then placed in a large evaporating dish to dry. 165 g. (98% yield) of a white, odorless, fine powder was obtained, consisting of Zinc iscpropyi xanthate.
In the following example are described tests of the corrosion inhibiting effect of zinc isopropyl xanthate as compared with other compounds which have been previously proposed as corrosion inhibitors for mineral lubricating oils.
EXAMPLE 2 Blends of various additives were made in a well refined solvent extracted paraiiinic type mineral 325 F. during the test. Two quarter sections oiautomotive bearings of copper-lead alloy of known weight having a total area of 25 sq. cm. were attached to opposite sides of a stainless steel rod which was then immersed'in the test oil and rotated at 600 R. P, M., thus providing sumcient agitation of the sample during the test. Air
' was then blown through the oil at the rate of 2 cu. ft. per hour. period. the bearings were removed and were washed with naphtha and weighed to determine the amount of loss by corrosion. The bearings At the end of each four-hour 2,486, 3 a were then repolished (to increase the severity oi the test), reweighed, and then subjected to the test for an additional four-hour period. The cumulative weight losses of the two quarter secuse Although in most instances the additive of the present invention will of itself impart suflicient improvement to lubricating oils to give very satisfactory results, still greater improvement may tions of bearings used in a given test at the end 5 often be obtained by employing this addition of the various four-hour periods are \given in agent in conjunction with additives of the deter- Table I, gent type such as metal soaps, metal phenates, It will be seen from the test results that zinc metal alcoholates, metal phenol sulfides, metal ispropyl xanthate is much more effective as a cororganic-phosphates, thiophosphates, phosphites rosr'on inhibitor than are other xanthate salts and and thiophosphites, metal thiocarbamates, sulthat it is also more eifective than several other fur-treated metal phenates, reaction products of known types of sulfur-containing additives for metal phenol sulfides and sulfides of phosphorus, lubricating oils. and the like.
Tuna I [Cumulative Bearing Weight Loss (mg/ sq. cm. suriace)! onmd 48121620242832364044'48 en Hm. Illa. Hrs. His. Hrs Hrs. Hrs. Hrs Hrs. Hrs. Hrs. Hrs.
Base on 0 14 I Base Oll+0.25% tertiary amyl phenol sulfide 3 17 Base 0040259; barium salt of tcrL-octyl phenol sulfide '5 Base Oil-+0.25% reaction product of phenol with suliurized dilsobu'3lcne 0 0 Base Oil+0 25% nick l ethyl xanihato 0 14 Base 0il4-0.5% nickel terpos l xanthato l 0 12 Base Oil+0.25% zinc isopropyl xanthate 0 0 onmend 53 57 m 65 a9 73 7s 82 so 9o 94 9s Hrs. Hrs Hrs. Hrs Hrs. Hrs Hrs Hrs Hrs. Hrs. Hrs. Hrs.
Base Oil Base Oil-l-OlfiZ er iary amyl phenol sulfide Base 0il+0 25 barium salt of tort.-octyl phenol sulfide. Base Oil+0.25% reaction product of phenol with sullurize i diiscbuivl nc A. l Ba e Oil-+0.25% nickel ethyl xanthaie Base Oil+0.f5% nickel ierposr-l xanthate Base 0il+0.25% zinc isopropyl xanthate 1 Terposol=reaction product ofalpha terpineol+ethylene oxide.
In the following example are given data of comparative engine tests of the performance of a lubricating oil with and without addition of zinc isopropyl xanthate.
EXAMPLE 3 In the following engine performance tests, samples of an unblended oil, consisting of an extracted Coastal naphthenic oil of 60 seconds Saybolt viscosity at 210 F. and of a blend containing this oil with the addition of 0.25% of zinc isopropyl xant ate were tested in a Chevrolet engine run for 36 hours under the following conditions: 30 brake horsepower, 3150 R. P. M., 245" F. oil temperature, and 200 F. water jacket temperature. At the end of each test the individual parts of the engine were inspected and given demerit ratings based on their condition. An overall demerit rating was then calculated, the individual demerit ratings being weighted according to their relative importance. It should be noted that the lower the demerit rating, the better the engine test. and hence the better the oil performed in the engine. The results of these engine tests are shown in the following table? Engine demerits is on ear ng on Overall Skirt Loss Grams 7o per Bearing Base Oil l. 09 3. 38, 1.26
Base Oil-{025% zinc isopropyl xanthate 0.50 0.48 0.68
Thus, for example, the addition agent of my invention may be used in mineral lubricating oils in conjunction with one or more of the following representative materials:
Barium tert.-octyl phenol sulfide Cobalt tert.-amyl phenol sulfide Tin salt of wax alkylated phenol sulfide Magnesium cetyl phenate Nickel oleate Barium salt of bis(2,4-diamyl phenol) -4-amylphenol dithioether.
Zinc salt of salicylic acid sulfide octyl ester Barium 2-stearoyl-4-an'iyl phenol sulfide Aluminum-calcium'mixed soap of fatty acid from The lubricating oil base stocks used in the compositions of this invention may be straight mineral lubricating oils or distillates derived from paraflinic, naphthenic, asphaltic or mixed base crudes, or, if desired, various-blended oils may be employed as well as residuals, particularly those from which asphaltic constituents have of oxides of carbon with hydrogen or by the hydrogenation of coal or its products. In certain instances cracking coil tar fractions and coal tar or shale oil distillates may also be used. Also, for special applications, animal, vegetable or fish oils or their hydrogenated or voltolized products may be employed, either alone or in admixture with mineral oils.
For the best results the base stock chosen should normally be that oil which without the new additive present gives the optimum performance in the service contemplated. However, since one advantage of the additive is that its use also makes feasible the employment of less satisfactory mineral oils or other oils, no strict rule can be laid down for thechoice of the base stock. Certain essentials must of course be observed. The
oil must possess the viscosity and volatility characterlstics known to be required for the service contemplated. The 011 must be a satisfactory solvent for the additive, although in some cases auxiliary solvent agents may-be used. The lubricating oils, however they may have been produced, may vary considerably in viscosity and other properties depending upon the particular use for which they are desired, but they usually range from about 40 to 150 seconds Saybolt viscosity at 210 F. For the lubrication of certain low and medium speed Diesel engines the general practice has often been to use a lubricating oil base stock prepared from naphthenic or aromatic crudes and having a Saybolt viscosity at'210 F. of 45 to 90 seconds and a viscosity indexof to 50. However, in certain types of Diesel service, particularly with high speed Diesel engines, and in gasoline engines, including aviation engine service, 0115 of higher viscosity index are often preferred, for example, up to '75 to 100, or
even higher. viscosity index.
In addition to the material to be added according to the present invention, other agents may also be used, such as dyes, pour depressors, heat thickened fatty oils, sulfurized fatty oils, organometallic compounds, metallic or other soaps,
sludge dispersers, anti-oxidants, thickeners, viscosity index improvers, oiliness agents, resins, rubber, olefin polymers, voltolized fats, voltolized mineral oils, and/or voltolized waxes and colloidal solids such as graphite or zinc oxide, etc. Specific examples of such other agents include dibenzyl dlsulfide, 2,6-tert.-buty1-4-methyl phenol, sulfurized sperm oil, diamyl trisulfide, voltolized sperm oil, polyisobutylene, polymerized lauryl methacrylate, sulfurized wax olenns, and the product of treating asulfur monochloridediisobutylene reaction product with phenol. Solvents and assisting agents, such as esters, ketones,
alcohols, aldehydes, halogenated or nitrated compounds, and the like, may also be'employed.
Additives which are particularly desirable as plasticizers and defoaming agents are the higher alcohols having eightor more carbon atoms and preferably 12 to 20 carbon atoms. The alcohols may be saturated straight and branched chain aliphatic alcohols such as octyl alcohol (CaHnOH) lauryl alcohol (C12H25OH) cetyl alcohol (CmHzsOH) heptadecyl alcohol (CmHasOH), stearyl alcohol, sometimes referred toas octadecyl alcohol,
(CiaHs'lOH) and the like; the corresponding olefinic alcohols such as oleyl alcohol; cyclic alcohols, such as naphthenic alcohols; and aryl substituted alkyl alcohols, for instance, phenyl octyl alcohol, or octadecyl benzyl alcohol or mixtures of these various alcohols, which may be pure or substantially pure synthetic alcohols. One may also use mixed naturally occurrin alcohols such as those found in wool fat (which is known to contain a substantial percentage of alcohols having about 16 to 18 carbon atoms) and in sperm oil (which contains a high percentage of cetyl alcohol) and although it is preferable to isolate the alcohols from those materials, for some purposes, the wool fat, sperm oil or other natural products rich in alcohols may be used per se. Products prepared synthetically by chemical processes may also be used such as alcohols prepared by the oxidation of petroleum hydrocarbons, e. g., pa'raffln wax, petrolatum, etc. These assisting agents serve to enhance the detergent and sludge dispersive qualities and aid the solubility of the metal-containing additives and at the same time impart oiliness'properties' to the lubricating oil compositions.
Inaddition .to being employed in crankcase lubricants the additive of the present invention may also be used in extreme pressure lubricants, engine flushing oils, industrial oils, process oils, general machinery oils, greases and rustpreventive compositions. Also its use in motor fuels containing tetraethyl lead or other anti-knock agents is contemplated.
The present invention is not to be considered as limited by any of the examples described herein which are given by way of illustration only, but it is to be limited solely by the terms of the appended claim.
I claim:
A mineral lubricating oil containing dissolved therein an oxidation-inhibiting amount of zinc I isopropyl xanthate.
JOHN P. McDERMOTT.
REFERENCES CITED The following references are of record'in the file of this patent:
UNITED STATES PATENTS Name
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US635112A US2436589A (en) | 1945-12-14 | 1945-12-14 | Compounded lubricated oil |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US635112A US2436589A (en) | 1945-12-14 | 1945-12-14 | Compounded lubricated oil |
Publications (1)
Publication Number | Publication Date |
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US2436589A true US2436589A (en) | 1948-02-24 |
Family
ID=24546497
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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US635112A Expired - Lifetime US2436589A (en) | 1945-12-14 | 1945-12-14 | Compounded lubricated oil |
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US (1) | US2436589A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668098A (en) * | 1950-11-18 | 1954-02-02 | Standard Oil Co | Gelling normally liquid hydrocarbons |
EP0416909A1 (en) * | 1989-09-07 | 1991-03-13 | Exxon Research And Engineering Company | Lubricating oil composition |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289795A (en) * | 1938-10-14 | 1942-07-14 | Standard Oil Dev Co | Lubricant |
US2293419A (en) * | 1938-12-05 | 1942-08-18 | Shell Dev | Process for solubilizing lubricating oil additives |
US2365011A (en) * | 1941-09-06 | 1944-12-12 | Standard Oil Dev Co | Lubricant composition |
US2394954A (en) * | 1940-12-20 | 1946-02-12 | Standard Oil Dev Co | Lubricant |
-
1945
- 1945-12-14 US US635112A patent/US2436589A/en not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2289795A (en) * | 1938-10-14 | 1942-07-14 | Standard Oil Dev Co | Lubricant |
US2293419A (en) * | 1938-12-05 | 1942-08-18 | Shell Dev | Process for solubilizing lubricating oil additives |
US2394954A (en) * | 1940-12-20 | 1946-02-12 | Standard Oil Dev Co | Lubricant |
US2365011A (en) * | 1941-09-06 | 1944-12-12 | Standard Oil Dev Co | Lubricant composition |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2668098A (en) * | 1950-11-18 | 1954-02-02 | Standard Oil Co | Gelling normally liquid hydrocarbons |
EP0416909A1 (en) * | 1989-09-07 | 1991-03-13 | Exxon Research And Engineering Company | Lubricating oil composition |
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