US1768910A - Oil-composition - Google Patents

Oil-composition Download PDF

Info

Publication number
US1768910A
US1768910A US200768A US20076827A US1768910A US 1768910 A US1768910 A US 1768910A US 200768 A US200768 A US 200768A US 20076827 A US20076827 A US 20076827A US 1768910 A US1768910 A US 1768910A
Authority
US
United States
Prior art keywords
oil
composition
petroleum
nitrogenous bases
bases
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
Application number
US200768A
Inventor
Harry K Ihrig
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to US200768A priority Critical patent/US1768910A/en
Application granted granted Critical
Publication of US1768910A publication Critical patent/US1768910A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/221—Organic compounds containing nitrogen compounds of uncertain formula; reaction products where mixtures of compounds are obtained
    • 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
    • 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
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • 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
    • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
    • C10M2207/40—Fatty vegetable or animal oils
    • C10M2207/404—Fatty vegetable or animal oils obtained from genetically modified species
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/221—Six-membered rings containing nitrogen and carbon only
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/22—Heterocyclic nitrogen compounds
    • C10M2215/225—Heterocyclic nitrogen compounds the rings containing both nitrogen and oxygen
    • C10M2215/226—Morpholines
    • 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
    • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant compositions
    • C10M2215/30—Heterocyclic compounds
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/16—Dielectric; Insulating oil or insulators
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/14—Electric or magnetic purposes
    • C10N2040/17—Electric or magnetic purposes for electric contacts
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/25—Internal-combustion engines
    • C10N2040/252—Diesel engines
    • C10N2040/253—Small diesel engines
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10N—INDEXING SCHEME ASSOCIATED WITH SUBCLASS C10M RELATING TO LUBRICATING COMPOSITIONS
    • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
    • C10N2050/10—Semi-solids; greasy

Definitions

  • This invention relates to that type of improvements in oil compositions which comprises the addition to a hydrocarbon oil of a small amount of nitrogenous bases.
  • the invention may be briefly stated to consist of an oil composition comrising a hydrocarbon oil, preferably, a petroeum oil, which in practise is best refined, having combined therewith a small amount of a nitrogenous base made or separated from petroleum.
  • a hydrocarbon oil preferably, a petroeum oil, which in practise is best refined, having combined therewith a small amount of a nitrogenous base made or separated from petroleum.
  • oils When oils are used at high temperatures, as, for example, in internal combustion engines, or for long periods of time exposed to air, as in transformer oils or for other insulatl'ng purposes, they tend to form acids or sludge. These are detrimental and cause trouble. This makes it necessary to change the oil at frequent intervals.
  • the object of the present invention is an improved oil that withstands oxidation and which can be used for longer eriods of time without changing. Any aci s that may be Application filed June 22,
  • he oil used may be a pure hydrocarbon oil, or one blended with a fatty oil, or may be in the form of a grease.
  • the expression pure hydrocarbon oil is used herein to mean any hydrocarbon oil which is not crude oil, but has been refined.
  • any oil, including a refined etroleum oil, in use at present as an insuating or lubricating oil is improved by the use of the said nitrogenous bases.
  • Chlorinated or compounded oils that heretofore were 05 not adapted for this use because they gave acids as products of their disintegration may be used in my composition by simply neutralizing them.
  • Such oils thus adapted for use herein are superior wetters of metal, due to the attraction of the chlorine atom for the metal. They are made b chlorinating the oil with gaseous chlorine y any of the well known rocesses of chlorination. Even gasoline or erosene is improved by this method,
  • the nitrogenous bases used are those made or separated from petroleum in any suitable manner, as, for example, by treatment with dilute sulphuric acid, neutralization of the as acid 1i uor, and subsequent steam distillation. These ases ma be defined as a mixture of basic compoun s of carbon, hydrogen and nitrogen, of which the largest proportion is proba 1y composed of nitrogen bases with the nitrogen in the ring; as, for exam le, pyridine, quinoline and pi eridine, an homologues thereof.
  • General y speakin the separated nitrogenous base is an oily quid soluble in acid and insoluble in alkali. It precipitates with silico-tungstic acid from acid solution.
  • the improved oil composition As an example of the improved oil composition, the following is given.
  • Nitrogenous bases made, as is common and long well known in the art from the gas oil fraction of. California petroleum by treatment with dilute sulfuric acid, neutralization of the acid liquor, and subsequent steam distillation were blended with a naphthene base lubricating oil in the proportion of 1% nitrogenous bases with 99% of hydrocarbon oil. This blended oil was then run in a motor for 16 hours under load with the throttle wide open. The motor was then taken down and examined. The used oil was dark brown in color instead of a greenish black. It contained very little sediment and sludge as determined by centrifuging. It showed complete separation in the Government emulsion test with caustic soda.
  • nitro enous bases may be necessary to purify the nitro enous basesby redistillation, or by slight oxldation by blowing them with air while warm and redistilling, or by any other suitable oxidizing agent such as potassium permanganate or bleaching powder.
  • An improved oil-composition comprising a hydrocarbon oil having combined therewith a small amount of'the nitrogenous bases made from petroleum.
  • An im roved oil-composition comprising a petro eum oil having combined therewith a small amount of the nitrogenous bases made from petroleum.
  • An improved oil-composition comprising a refined petroleum oil having combined therewith a small amount of the nitrogeneous bases made from petroleum.

Description

Patented July 1, 1930 HARRY K. IHRIG, OF BERKELEY, CALIFORNIA OIL-COMPOSITION 1T0 Drawing.
This invention relates to that type of improvements in oil compositions which comprises the addition to a hydrocarbon oil of a small amount of nitrogenous bases.
Heretofore, as far as I am aware, it has been proposed to use for this purpose a condensation product of a ketone with ammonia. I have found that nitrogenous bases made or separated from petroleum are available in this connection and can be used without a ketone, being, in fact, incapable of forming a condensation product therewith; thus attaining the improvement sought more economically; and when the oil to which the addition is made is a refined petroleum oil, the improvement in the oil composition reaches its highest attainment. I have found, further, that nitrogenous bases made or separated from petroleum have a peculiar and highly desirable effect in oil compositions of this type, not enjoyed by nitrogenous bases made or separated from sources other than petroleum; namely, they inhibit the corrosion of metals by acids, even after said bases have become completely neutralized. This is very important in an oil used where high sulphur or chlorinated fuels or lubricating oils are used, as mentioned hereinafter; and due to this peculiarity or property they can be used in very small amounts and still protect the metal surfaces from oil corrosion.
The invention, therefore, may be briefly stated to consist of an oil composition comrising a hydrocarbon oil, preferably, a petroeum oil, which in practise is best refined, having combined therewith a small amount of a nitrogenous base made or separated from petroleum.
When oils are used at high temperatures, as, for example, in internal combustion engines, or for long periods of time exposed to air, as in transformer oils or for other insulatl'ng purposes, they tend to form acids or sludge. These are detrimental and cause trouble. This makes it necessary to change the oil at frequent intervals.
The object of the present invention is an improved oil that withstands oxidation and which can be used for longer eriods of time without changing. Any aci s that may be Application filed June 22,
1927. Serial No. 200,768.
formed are neutralized and do not collect to cause corrosion and further acidification by what is well known in the art as autocatal ysis.
he oil used may be a pure hydrocarbon oil, or one blended with a fatty oil, or may be in the form of a grease.' The expression pure hydrocarbon oil is used herein to mean any hydrocarbon oil which is not crude oil, but has been refined.
In general, any oil, including a refined etroleum oil, in use at present as an insuating or lubricating oil is improved by the use of the said nitrogenous bases. Chlorinated or compounded oils that heretofore were 05 not adapted for this use because they gave acids as products of their disintegration may be used in my composition by simply neutralizing them. Such oils thus adapted for use herein are superior wetters of metal, due to the attraction of the chlorine atom for the metal. They are made b chlorinating the oil with gaseous chlorine y any of the well known rocesses of chlorination. Even gasoline or erosene is improved by this method,
especially gasolines containing anti-knock dopes that tend to give acids as products of their combustion. High sulphur oils can also be used with safety as the sulphur acids formed are at once neutralized by the -nitrogenous bases. In the hypochlorite process for treating gasoline, one of the objections to it for use in oil-compositions of this type is that it chlorinates a portion of the hydrocarbon although extreme precautions are taken to prevent this reaction. With the use of the nitrogenous bases herein this objection would not be serious. By simply bubbling gaseous chlorine through the oil or by treatmg it with sodium or calcium hypochlorite, it will be chlorinated.
The nitrogenous bases used are those made or separated from petroleum in any suitable manner, as, for example, by treatment with dilute sulphuric acid, neutralization of the as acid 1i uor, and subsequent steam distillation. These ases ma be defined as a mixture of basic compoun s of carbon, hydrogen and nitrogen, of which the largest proportion is proba 1y composed of nitrogen bases with the nitrogen in the ring; as, for exam le, pyridine, quinoline and pi eridine, an homologues thereof. General y speakin the separated nitrogenous base is an oily quid soluble in acid and insoluble in alkali. It precipitates with silico-tungstic acid from acid solution.
As an example of the improved oil composition, the following is given.
Nitrogenous bases made, as is common and long well known in the art from the gas oil fraction of. California petroleum by treatment with dilute sulfuric acid, neutralization of the acid liquor, and subsequent steam distillation were blended with a naphthene base lubricating oil in the proportion of 1% nitrogenous bases with 99% of hydrocarbon oil. This blended oil was then run in a motor for 16 hours under load with the throttle wide open. The motor was then taken down and examined. The used oil was dark brown in color instead of a greenish black. It contained very little sediment and sludge as determined by centrifuging. It showed complete separation in the Government emulsion test with caustic soda.
Very little carbon was formed and less consumption was noted as compared to the same oil without nitrogenous bases run under the same conditions.
In some cases it may be necessary to purify the nitro enous basesby redistillation, or by slight oxldation by blowing them with air while warm and redistilling, or by any other suitable oxidizing agent such as potassium permanganate or bleaching powder.
More in detail it may be stated that when air-blowing is resorted to, they are blown from two to five hours at a temperature of 1000 F. When another oxidizing agent, such as potassium permanganate is used, they may be treated for two hours with a ten percent permanganate solution, in an agitator with air agitation; after which the water portion is drawn OE and then the remaining oxidized bases are redistilled.
1. An improved oil-composition comprising a hydrocarbon oil having combined therewith a small amount of'the nitrogenous bases made from petroleum.
2. An im roved oil-composition comprising a petro eum oil having combined therewith a small amount of the nitrogenous bases made from petroleum.
3. An improved oil-composition comprising a refined petroleum oil having combined therewith a small amount of the nitrogeneous bases made from petroleum.
In testimony whereof I have signed my name to this specification.
HARRY K. IHRIG.
US200768A 1927-06-22 1927-06-22 Oil-composition Expired - Lifetime US1768910A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US200768A US1768910A (en) 1927-06-22 1927-06-22 Oil-composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US200768A US1768910A (en) 1927-06-22 1927-06-22 Oil-composition

Publications (1)

Publication Number Publication Date
US1768910A true US1768910A (en) 1930-07-01

Family

ID=22743105

Family Applications (1)

Application Number Title Priority Date Filing Date
US200768A Expired - Lifetime US1768910A (en) 1927-06-22 1927-06-22 Oil-composition

Country Status (1)

Country Link
US (1) US1768910A (en)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441849A (en) * 1945-08-06 1948-05-18 Dow Chemical Co Stabilization of alkylene glycols
US2539118A (en) * 1947-06-02 1951-01-23 Socony Vacuum Oil Co Inc Manufacture of carbureted water gas
US2844479A (en) * 1950-06-20 1958-07-22 Aluminum Co Of America Electrical joint composition
US2972861A (en) * 1953-03-11 1961-02-28 Midland Tar Distillers Ltd Method of reducing the corrosive attack of combustion gases on metal
US2996454A (en) * 1958-07-07 1961-08-15 Socony Mobil Oil Co Inc Method of protecting machinery from corrosion by acid-reacting substances tending to accumulate in lubricating oils
US3094488A (en) * 1959-11-23 1963-06-18 Exxon Research Engineering Co Radiation resistant mineral oils
US3211516A (en) * 1962-07-16 1965-10-12 Mc Graw Edison Co Thermally stabilized cellulose materials
US4346015A (en) * 1979-02-21 1982-08-24 Union Carbide Corporation Method of improving antiwear properties of high temperature hydrocarbon compositions
US4367152A (en) * 1981-07-02 1983-01-04 Exxon Research And Engineering Co. Selected heteroaromatic nitrogen compounds as antioxidant/metal deactivators/electrical insulators in lubricating oils and petroleum liquid fuels
US4501677A (en) * 1983-11-02 1985-02-26 Exxon Research & Engineering Co. Heterocyclic nitrogen compounds--organometallic salt complexes as corrosion inhibitors in lubricating oils
US4692258A (en) * 1981-08-10 1987-09-08 Ciba-Geigy Corporation Tetrahydroquinolines as antioxidants for lubricants
EP1486555A1 (en) * 2003-06-04 2004-12-15 Shell Internationale Researchmaatschappij B.V. Use of low-corrosive fuel compositions in boilers

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2441849A (en) * 1945-08-06 1948-05-18 Dow Chemical Co Stabilization of alkylene glycols
US2539118A (en) * 1947-06-02 1951-01-23 Socony Vacuum Oil Co Inc Manufacture of carbureted water gas
US2844479A (en) * 1950-06-20 1958-07-22 Aluminum Co Of America Electrical joint composition
US2972861A (en) * 1953-03-11 1961-02-28 Midland Tar Distillers Ltd Method of reducing the corrosive attack of combustion gases on metal
US2996454A (en) * 1958-07-07 1961-08-15 Socony Mobil Oil Co Inc Method of protecting machinery from corrosion by acid-reacting substances tending to accumulate in lubricating oils
US3094488A (en) * 1959-11-23 1963-06-18 Exxon Research Engineering Co Radiation resistant mineral oils
US3211516A (en) * 1962-07-16 1965-10-12 Mc Graw Edison Co Thermally stabilized cellulose materials
US4346015A (en) * 1979-02-21 1982-08-24 Union Carbide Corporation Method of improving antiwear properties of high temperature hydrocarbon compositions
US4367152A (en) * 1981-07-02 1983-01-04 Exxon Research And Engineering Co. Selected heteroaromatic nitrogen compounds as antioxidant/metal deactivators/electrical insulators in lubricating oils and petroleum liquid fuels
US4692258A (en) * 1981-08-10 1987-09-08 Ciba-Geigy Corporation Tetrahydroquinolines as antioxidants for lubricants
US4501677A (en) * 1983-11-02 1985-02-26 Exxon Research & Engineering Co. Heterocyclic nitrogen compounds--organometallic salt complexes as corrosion inhibitors in lubricating oils
EP1486555A1 (en) * 2003-06-04 2004-12-15 Shell Internationale Researchmaatschappij B.V. Use of low-corrosive fuel compositions in boilers

Similar Documents

Publication Publication Date Title
US1768910A (en) Oil-composition
US1966050A (en) Stable white oil
US1826144A (en) Process of refining hydrocarbon oils with manganese salts
US522028A (en) Process of purifying illuminating-oils
US2022942A (en) Method of sweetening hydrocarbon oils
US723368A (en) Process of purifying and desulfurizing crude petroleum and petroleum distillates.
DE1190953B (en) Process for the preparation of 3,5-ditertiaerbutyl-4-hydroxybenzyl chloride
US1677425A (en) Process for the refining of petroleum fractions
US1973475A (en) Oxidized motor fuel
US1993140A (en) Process for refining hydrocarbon oils for removing sulphur compounds
US2213596A (en) Inhibiting agent for gasoline and method of producing same
US968692A (en) Refining petroleum.
US2064805A (en) Heating and illuminating gas and method of making same
US1669379A (en) Treating emulsions
US2111920A (en) Sludge separation
US2311505A (en) Copper corrosion inhibitor
US2267142A (en) Treatment of hydrocarbons
US518990A (en) Hans a
US2217874A (en) Inhibitor
US518991A (en) frasch
DE572476C (en) Pressure heat splitting of hydrocarbon oils
US178154A (en) Improvement in resinous substances
US2058696A (en) Process of stabilizing oils
US2301794A (en) Refining petroleum oil
US3151083A (en) Lubricating oils