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
  • C10M3/00—Liquid compositions essentially based on lubricating components other than mineral lubricating oils or fatty oils and their use as lubricants; Use as lubricants of single liquid substances
• • 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
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/02—Water
• • 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
  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/08—Inorganic acids or salts thereof
  • C10M2201/082—Inorganic acids or salts thereof containing nitrogen
  • C10M2201/083—Inorganic acids or salts thereof containing nitrogen nitrites
• • 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
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
• • 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
  • C10M2207/02—Hydroxy compounds
  • C10M2207/023—Hydroxy compounds having hydroxy groups bound to carbon atoms of six-membered aromatic rings
  • C10M2207/027—Neutral salts thereof
• • 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
  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • 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
• • 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
  • C10M2207/28—Esters
  • C10M2207/284—Esters of aromatic monocarboxylic 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
  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/28—Esters
  • C10M2207/285—Esters of aromatic 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
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
  • C10M2215/04—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2215/042—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to acyclic or cycloaliphatic carbon atoms containing hydroxy groups; Alkoxylated derivatives thereof
• • 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
  • C10N2010/00—Metal present as such or in compounds
  • C10N2010/02—Groups 1 or 11
• • 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
  • C10N2040/20—Metal working
  • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling

Definitions

• This invention concerns an aqueous composition adapted, particularly in diluted form, for use as a coolant and lubricating agent in metal cutting, metal grinding and similar operations.
• Patent No. 2,625,509 issued January 13, 1953, is disclosed a non-petroleum base lubricant which represented a considerable improvement over prior composi tions.
• This lubricant appeared sta le, non-corrosive and rust-inhibiting, but was found in service to have certain undesirable features.
• the foam formation was considered excessive, the composition was found to form insoluble soaps, and operators complained of irritation of the nose and throat when using the lubricant.
• Another object of this invention is to provide a more stable, non-corrosive, rust-inhibiting coolant-lubricant.
• Another object of this invention is the provision of a highly stable coolant-lubricant forming a soft, residual film on metal surfaces, which film is easily removed therefrom by water-washing.
• Still another object is the provision of a lubricant having resistance to bacterial decomposition under extended storage periods and adverse conditions which still provides adequate lubrication and cooling in metalworking operations and can be used with hard water with a minimum formation of insoluble soaps.
• the alkanolamine phosphate is preferably tri-ethanolamine phosphate, although monoor di-ethanolamine phosphate may be substituted in whole or in part.
• the phosphate may be formed by adding to the formulation the desired amount of tri-ethanolamine and phosphoric acid.
• the castor oil fatty acids are reacted with potassium hydroxide to obtain the desired amount of potassium soaps of fatty acids.
• Tri-ethanolamine is then added to react with the remaining castor oil fatty acids to produce mixed soaps of tri-ethanolamine fatty acids. Water and phosphoric acid is then added to react with the excess tri-ethanolamine, producing the triethanolamine phosphate.
• the alkanolamine-organic acid reaction product is then added followed by a. combination of three germicides.
• the combination germicide found satisfactory is phenol, the sodium salt of ortho phenyl phenol and the methyl ester of p-hydroxy benzoic acid.
• a rust inhibitor such as sodium nitrite is then added.
• compositions of this invention have the following balanced proportions, expressed in weight percent.
• compositions contemplated herein are compounded according to the following procedure, which is illustrated by a preferred composition (identified herein as Composition I).
• the castor oil fatty acids are charged to a steam-jacketed kettle, equipped with an agitator which is in operation throughout the preparation.
• the kettle is maintained at a temperature of about 120 F. and the potassium hydroxide is added.
• tri-ethanolamine and water are added in order with agitation being continued and temperature maintained at about 120 F. until a clear solution is obtained.
• the phosphoric acid is then introduced into the mixture.
• reaction product of substantially completely neutral di-ethanolamine salts formed by reacting a sufficient amount of di-ethanolamine with one part by weight para-tertiary butyl benzoic acid and two parts by weight of a mixture of aliphatic carboxylic acids derived from an oxidized petroleum fraction and having carbon chain lengths between C and C and a mean carbon chain length of C is added.
• Phenol, the sodium salt of ortho phenyl phenol and the methyl ester of p-hydroxy benzoic acid are then added in order. Finally the sodium nitrite is added and the formulation is complete.
• Composition I prepared by the foregoing procedure, has the following characteristics.
• compositions of this invention are used as coolants and lubricants for metalworking, they are preferably used in diluted form. Recommended proportions are the following.
• compositions of this invention have been proven to be advantageous in a number of respects, as is demonstarted by the following test data.
• Almen Pin Test Composition 1 diluted 1-10 with distilled water, withstood an OK load of 14,000 pounds per square inch.
• Tapping Efficiency In the measurement of tapping efficiency of an oil, a series of holes is accurately drilled in a test metal, namely, SAE 1020 hot rolled steel. These holes are subsequently tapped with a. series of taps in a drill press equipped with a table, which is free to rotate about the center, being mounted on ball bearings. A torque arm is attached to this floating table and this arm, in turn, actuates a spring scale so that the actual torque during tapping with the oil being evaluated is measured directly.
• the same taps used in evaluating the test oil are employed in tapping with a standard reference oil, which has arbitrarily been assigned an efficiency of percent.
• the average torque for the test oil is compared to that of the standard and a relative efliciency is calculated on a percentage basis. For example,
• Corrosion Test Composition I is shown to be non-corrosive to ferrous products, by a humidity cabinet test on turnings of malleable iron treated with various dilutions thereof.
• Composition I was subjected to the following foam the bottom of the cylinder.
• the return line is about 8' inches above the level of the liquid. Circulation is started and readings are taken at 5, l0 and 15 minutes to note foam formation. Circulation is stopped and readings taken at 5, l0 and 15 minutes to record settling of the foam.
• An excellent product will give from 500 to 1000 mls. of foam, which will completely settle in 5 minutes.
• Composition I exhibited 900 mls. of foam, which settled in approximately 5 minutes. The product was, therefore, considered satisfactory by the foam test.
• Composition I was also found to be free from irritation to the nose and throat of members of a test panel. When Composition I was diluted with distilled water (l-SO) and atomized before the panel, no irritation was experienced.
• l-SO distilled water
• composition I formed a soft residual film on a metal surface, which film is removed readily with water.
• This test consists of evaporating 15 mls. of a 1-5 dilution on a 6-inch watch crystal in a forced draft oven at F. for 48 hours.
• Composition I was tested in the field using all types of machining operations, and the machining efiiciency was found to be as good or better than that of the formulation disclosed in application Serial Number 726,335. These tests showed that Composition I was superior to the formulations of Serial Number 726,335 with respectto resistance to spoilage. The all-around performance of Composition I has been superior to other products of this type in operations ranging from tapping to grinding.
• aqueous coolant and lubricant formed by mixing in order the following components:
• Weight percent A reaction product consisting of substantially completely neutral di-ethanolamine salts of one part by weight para-tertiary butyl benzoic acid and two parts by weight of a Weight percent mixture of aliphatic carboxylic acids derived from any oxidized petroleum fraction and having carbon chain lengths between 3.

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• Chemical & Material Sciences (AREA)
• Chemical Kinetics & Catalysis (AREA)
• General Chemical & Material Sciences (AREA)
• Oil, Petroleum & Natural Gas (AREA)
• Organic Chemistry (AREA)
• Lubricants (AREA)

Priority Applications (2)

Applications Claiming Priority (1)

Publications (1)

Family

ID=21724311

Family Applications (1)

Country Status (2)

Cited By (4)

Citations (5)

• 0
  • BE BE596639D patent/BE596639A/xx unknown
• 1960
  • 1960-02-08 US US7117A patent/US3071545A/en not_active Expired - Lifetime

Patent Citations (5)

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