US1856186A - Preservation of oils - Google Patents

Preservation of oils Download PDF

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Publication number
US1856186A
US1856186A US285499A US28549928A US1856186A US 1856186 A US1856186 A US 1856186A US 285499 A US285499 A US 285499A US 28549928 A US28549928 A US 28549928A US 1856186 A US1856186 A US 1856186A
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US
United States
Prior art keywords
oils
preservation
obnoxious
action
germany
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
US285499A
Inventor
Hofmann Fritz
Dunkel Manfred
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.)
IG Farbenindustrie AG
Original Assignee
IG Farbenindustrie AG
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 IG Farbenindustrie AG filed Critical IG Farbenindustrie AG
Application granted granted Critical
Publication of US1856186A publication Critical patent/US1856186A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • 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
    • C10M2207/08—Aldehydes; Ketones
    • 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
    • C10M2215/12—Partial amides of polycarboxylic acids
    • 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
    • C10M2215/16—Nitriles
    • 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

Definitions

  • the present invention relates to the preservation of oils against oxidation.
  • oils especially lubricating and transformer oils, and in particular hydrocarbon oils can be preserved from the obnoxious action of atmospheric oxygen at elevated temperatures and the discoloration of the oils and the formation of asphalt-like sludge prevented by the addition of small amounts of nan-gaseous nitriles which are soluble in the said oils.
  • the said nitriles may also be employed in admixture with other organic substances such as bases, aldehydes and their condensation products, acid amides and their derivatives and the like.

Description

Patented May 3, 11932 air ran
FRITZ HOFMANN, OF BRESLAU, AND MANFRED DUNKEL, OF MANNHEIM, GERMANY,
ASSIGNORS TO I. G. FARCBENINDUSTRIE AKTIENGESELLSCHAFT, OF FRANKFURT- ON-THE-MAIN, GERMANY, A CORPORATION OF GERMANY PRESERVATION or OILS No Drawing. Application filed June 14, 1928, Serial No. 285,499, and in Germany November 24, 1925.
The present invention relates to the preservation of oils against oxidation.
We have found that oils, especially lubricating and transformer oils, and in particular hydrocarbon oils can be preserved from the obnoxious action of atmospheric oxygen at elevated temperatures and the discoloration of the oils and the formation of asphalt-like sludge prevented by the addition of small amounts of nan-gaseous nitriles which are soluble in the said oils.
The said nitriles may also be employed in admixture with other organic substances such as bases, aldehydes and their condensation products, acid amides and their derivatives and the like.
The following examples serve to illustrate our invention which, however, is not limited thereto. by
weight.
The percentages are Eazample 1 On addition to a mineral oil, which on oxidation yields 0.45 per cent of tarry matter, of 0.1 per cent of aoetonitrile only 0.04- per cent of tarry matter are obtained by a similar treatment.
Example our hands. I
FRITZ HOFMANN. MANFRED DUNKEL.
2. The process of preserving oils from the I obnoxious action of oxygen which comprises adding to the oils a small amount of toluo nitrile.
3. The process of preserving a hydrocarbon oil from the obnoxious action of oxygen which comprises adding to said oil a small amount of toluo-nitrile.
4. The process of preserving an oil of the type used for lubricating and in transformers from the obnoxious action of oxygen
US285499A 1925-11-24 1928-06-14 Preservation of oils Expired - Lifetime US1856186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1856186X 1925-11-24

Publications (1)

Publication Number Publication Date
US1856186A true US1856186A (en) 1932-05-03

Family

ID=7746224

Family Applications (1)

Application Number Title Priority Date Filing Date
US285499A Expired - Lifetime US1856186A (en) 1925-11-24 1928-06-14 Preservation of oils

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US (1) US1856186A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682336A (en) * 1950-01-04 1954-06-29 Phillips Petroleum Co Rubber swelling additives for fuels
US2835627A (en) * 1957-07-05 1958-05-20 Lilly Co Eli Stable vitamin b12 solutions
US2900345A (en) * 1954-02-24 1959-08-18 Monsanto Chemicals Dielectric composition containing a phenoxypropionitrile
US3223631A (en) * 1962-12-07 1965-12-14 Exxon Research Engineering Co Lubricating composition

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2682336A (en) * 1950-01-04 1954-06-29 Phillips Petroleum Co Rubber swelling additives for fuels
US2900345A (en) * 1954-02-24 1959-08-18 Monsanto Chemicals Dielectric composition containing a phenoxypropionitrile
US2835627A (en) * 1957-07-05 1958-05-20 Lilly Co Eli Stable vitamin b12 solutions
US3223631A (en) * 1962-12-07 1965-12-14 Exxon Research Engineering Co Lubricating composition

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