Classifications

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  • C10M173/00—Lubricating compositions containing more than 10% water
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  • C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
  • C10M2201/02—Water
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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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  • 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
  • C10M2203/102—Aliphatic fractions
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  • C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
  • C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
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  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
  • C10M2207/02—Hydroxy compounds
  • C10M2207/021—Hydroxy compounds having hydroxy groups bound to acyclic or cycloaliphatic carbon atoms
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  • 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
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  • 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
  • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
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  • 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
  • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
  • C10M2207/122—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms monocarboxylic
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  • C10M2207/10—Carboxylix acids; Neutral salts thereof
  • C10M2207/12—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms
  • C10M2207/121—Carboxylix acids; Neutral salts thereof having carboxyl groups bound to acyclic or cycloaliphatic carbon atoms having hydrocarbon chains of seven or less carbon atoms
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  • 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
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  • 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
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  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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  • C10M2207/00—Organic non-macromolecular hydrocarbon compounds containing hydrogen, carbon and oxygen as ingredients in lubricant compositions
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  • C10M2209/00—Organic macromolecular compounds containing oxygen as ingredients in lubricant compositions
  • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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  • C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
  • C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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  • C10M2215/00—Organic non-macromolecular compounds containing nitrogen as ingredients in lubricant Compositions
  • C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
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  • 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
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  • C10M2215/08—Amides [having hydrocarbon substituents containing less than thirty carbon atoms]
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  • C10M2215/08—Amides [having hydrocarbon substituents containing less than thirty carbon atoms]
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  • C10M2219/00—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions
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  • C10N2050/00—Form in which the lubricant is applied to the material being lubricated
  • C10N2050/01—Emulsions, colloids, or micelles
• • 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
  • C10N2070/00—Specific manufacturing methods for lubricant compositions
  • C10N2070/02—Concentrating of additives

Definitions

• the mentioned related application concerns an improve-.
• the lubricants having therein a mixture of monoand dioleyl phosphates and a lubricant consisting essentially of a lubricating oil, especially a mineral lubricating oil.
• This invention relates to emulsifiable lubricants useful in the rolling of metals. More particularly, the invention is'concerned with providing such lubricants having improved stability properties, particularly in the emulsified form.
• the high degree of heat generating from the fast rolling rates must be dissipated quickly and thus the lubricant must be an equally effective coolant.
• the roll oil must also be able to remove metal fines from the metal being rolled to prevent marring the finished surface. Also the metal fines should be easily removed from the oil. If permitted to remain in the oil, they can cause metal surface defects in later rolling operations. The inability of an emulsion to collect fines adequately and the difficulty of removing those that are collected may be due to emulsion separation during metal working operations. Moreover, many known oils tend to remain on the metal surface during annealing, leaving severe stains thereon.
• U.S. Pat. No. 3,071,544 describes rolling oil emulsions containing a number of components, including a small amount of an organic acid.
• the acid is either liquid or oil soluble or is reacted with other components in the formulation to provide oil soluble soaps, such as the soaps of alkanolamines.
• U.S. Pat. No. 3,311,557 describes 3,723,313 Patented Mar. 27, 1973 ice emulsions for the hot rolling of nonferrous metals which contain a fatty acid, a polyol and ethanolamine.
• the ethanolamine reacts with the acid in sufficient proportion to provide a ratio of base number to acid number of from 0.15 to 0.4.
• Specific examples of this patent show the use of oil-soluble, liquid fatty acids.
• U.S. Pat. 3,523,895 discloses metal working lubricants comprising a lubricating oil and an aryl or alkyl phosphate.
• U.S. 3,432,434 teaches a metal rolling lubricant containing an alkyl-aromatic hydrocarbon which might contain an alkali or alkaline earth metal phosphate or an amine phosphate.
• emulsion-type lubricants especially in emulsion form
• this will be a mixture of monoand dioleyl phosphates.
• the lubricant contains a solid aliphatic monocarboxylic acid of from about 10 to about 30 carbon atoms.
• the lubricant emulsions used in the cold rolling of metal in accordance with this invention broadly comprises from about 0.75% to about 10% by weight of an oil plus solid acid composition in water.
• the mixed oil-acid neat composition contains from about 20% to about 50%, preferably from about 20% to 40%, by weight of the solid acid.
• the oil-soluble phase being about to about 50% by weight of the oil-acid composition, includes an aromatic oil as hereinafter described, emulsifiers and emulsion stabilizers.
• the oil may constitute from about 20% to about 60%, preferably about 30% to about 80%, by weight of the neat composition.
• aromatic oil may be mixed with other oils, such as naphthenic and parafiinic mineral oils, in which case they constitute a maximum of about one-half the amount of aromatic employed.
• the typical final lubricant emulsion of this invention consists of water, emulsified oil droplets, and the solid acid closely attached to the droplets.
• the components include from about 1% to about 15% by weight of the oil phase of an alkanolamine having from about 2 to about 5 carbon atoms per alkanol group and from about 1% to about 15 by weight of the oil phase of an emulsifier preferably having a hydrophilic-lipophilic balance of at least 10.
• the oil phase may also contain from about 0.05% to about 2% by weight of an aromatic sulfonate and from about 2% to about 15% by weight of a mixture of monoand dialkyl phosphates.
• the oil-acid composition contains the components in the following percentages: (1) from about 30% to about 50% by weight of oil, either aromatic oil alone or a mixture thereof with another oil; (2) from about 20% to about 40% by weight of the solid aliphatic saturated monocarboxylic acid having from about 14 to about 28 carbon atoms; (3) from about 3% to about 12% by weight of an alkanolamine having from 2 to about 4 carbon atoms; (4) from about 5% to about 10% by weight of a mixture of mono and dialkyl phosphates; about 3% to about 12% by weight of an emulsifier having a hydrophilic-lipophilic balance of at least and (6) from about 0.1% to about 1.5% by weight of an aromatic sulfonate.
• one aspect of this invention is directed to roll oil lubricants consisting of about a 0.75% to 10% by weight oil-in-water emulsion, wherein, as previously described, the neat phase, on a water-free basis, contains from about 20% to about 50% of said solid acid.
• the mixing equipment needed for combining the components of this invention are of a conventional nature, known in the art.
• the oil, the water, the acid and the other components, with the exception of component (6) are mixed together initially at a temperature of from 50 C. to about 100 C., and preferably 80 to 90 C., for a sufficient period to obtain a uniform composition.
• From about 30 minutes to about 7 hours, preferably 1 hour, of mechanical mixing is ordinarily sufficient to obtain the desired emulsion mixtnre.
• Such a step may be carried out by means of suitable equipment for this purpose, such as a colloid mill, homogenizer and the like.
• the preferred mixing procedure is performed by first using a mechanical mixer and then the homogenizer, maintaining the temperature higher than 60, preferably from about 80 to about 90 C.
• the mixture is cooled rapidly to a temperature below 50 C., and the aromatic sulfonate is mixed in.
• the mixture may thereafter be submitted to a final homogenizing treatment.
• a concentrated emulsion may be initially prepared by the supplier prior to shipment to the mill.
• emulsion concentrate that is, the compositions which will require the least mixing time in the mill equipment, compositions containing from about 20% to about 60% by weight of the above components (1) to (6) and from about 80% to about 40% by weight of water are preferred. These concentrates are simply diluted in further amounts of water to produce the 0.75 to 10% emulsion for use.
• the aromatic oils useful in practicing this invention include all of the general group of oils which are furfural extracts having a viscosity within the range of about 10150, preferably 30-70, SUS at 100 F. and a specific gravity greater than one.
• the aromatic content should be greater than 90% and its boiling point should be less than 650 F. to eliminate carcinogenic hazards.
• Oils that may be used with the aforedescribed aromatic oils in the practice of this invention include both naphthenic and paraffinic mineral oils having a Saybolt viscosity in the range of 100 through 300 SUS at 100 F. and synthetic lubricants, such as synthetic ester lubricants,
• From about 20% to about 50% by weight of neat composition is an aliphatic, saturated monocarboxylic acid having from about 10 to about 30, and preferably from about 14 to 28, carbon atoms.
• This range includes myristic, palmitic, stearic, arachidic, and behenic acids which are all normally solid, and insoluble in mineral oils and water.
• stearic acid is employed. At elevated mixing temperatures and at mill operating temperatures these acids may become liquefied. However, at reservoir temperatures, it is believed that although the emulsions are stable, a heterogeneous system may result. It is therefore within the scope of this invention to use acids which may be in a solid and undissolved state, such as a large particle or suspensoid, at any point during the use or storage of the emulsion lubricant.
• the alkanolamine is used as an emulsifying agent in the lubricant, in amounts ranging from about 1% to 15% and preferably 3% to 12% by weight of neat composition.
• Primary, secondary, and teritary alkanolamines may be used.
• Triethanolamine, isopropanolamine, triisopropanolamine, and isobutanolamine are examples of suitable compounds for use in this invention.
• the phosphate used in the practice of this invention is a mixture of monoand dialkyl phosphates where the alkyl contains from about 8 to about 20 carbon atoms and having concentrations of each component within well defined limits.
• the preferred member is a mixture of monoand dioleyl phosphate.
• the concentration of monoalkyl phosphate, exemplified by monooleyl phosphate [C OP(O)(OH) will range between about 30 and about 45% of the phosphate mixture, and the concentration of dialkyl phosphate, as for example dioleyl phosphate [.(C O) P(O)OH], will constitute the remainder, i.e., from about 70 to about 55% of the mixture.
• the phosphates may be prepared in known ways.
• the monoand dialkyl phosphates can be made separately by reacting an alcohol with POCl in the desired ratio, followed by forming the acid. The individually made components can then be combined to form the mixture of the invention.
• the mixed monoand dialkyl phosphates can be made in one step by reacting the appropriate alcohol with P 0 usually in the ratio of 3 moles of alcohol to 1 mole of P 0
• the alcohols used will contain from about 8 to about 20 carbon atoms.
• all the alcohol employed may have all carbon chains of the same length, or the alcohol may contain molecules ranging from the minimum chain length of 8 carbon atoms to the maximum of 20 carbon atoms.
• the preferred oleyl alcohol even the prime commercial grade, is not pure C but is about 60% of unsaturated C with lesser amounts of C C C and C alcohols.
• the concentration of the emulsifiers or emulsion stabilizers may range from about 1% to about 15% and preferably from about 3% to about 12% by weight.
• emulsifiers include cationic, anionic and nonionic emulsifiers, such as amines having from 4 to 36 carbon atoms and the C C -alkyl phenols, and fatty or resin alcohols, fatty acids, esters and partial esters of fatty acids and polyols and fatty acid amides, each having from 4, and preferably from 8, to 36 carbon atoms.
• a preferred group of emulsifiers are the alkoxylated derivatives of the abovelisted organic compounds obtained by reacting them with an alkylene oxide having from about 2 to 4 carbon atoms, such as ethylene oxide (also termed ETO).
• a preferred group of emulsifiers is the N-acyl-substituted dialkanolamides, the acyl group having 8 to 30 carbon atoms, such as lauroyl diethanolamide.
• Other emulsifiers include gum Arabic, often used in the preparation of wax emulsions.
• the aromatic sulfonate acts as a control agent of the particle size and viscosity of the emulsion. It is present in relatively minor proportion, ranging from 0.05% to 2.0%, and preferably 0.05% to about 1.0%, by weight of the emulsion concentrate.
• the aromatic suklfonates include oil soluble metal salts of petroleum sulfonic acids and synthetic alkaryl sulfonic acids, particularly those having a molecular weight of from about 300 to 800.
• the preferred alkyl substituents on the aromatic ring contain from about 8 to 24 carbon atoms.
• the aromatic sulfonate used in the lubricants of this invention is an oil-soluble beta-naphthalene sulfonic acid-aldehyde condensate, and particularly useful is the formaldehyde condensate.
• Preparations for producing such condensates are generally known in the art. They may also be used in the form of an alkali metal salt.
• emulsion compositions containing additionally a liquid fatty acid, having from about 12 to about 22 carbon atoms, preferably oleic acid or linoleic acid, in combination with an aliphatc fatty acd amide having from about 10 to about 18 carbon atoms preferably lauroyl diethanolamide, possess further improved anti-corrosion properties in the cold-rolling of steei.
• Oleic acid oiTers additional oilness characteristics which aid in the film-forming properties of the lubricant, but it does not provide any anticorrosion protection by itself. It is know that amides do provide some anti-corrosion properties alone.
• the fatty acid amide acts in an improved manner evidencing unusual cooperation, as between co-agents.
• the combination of oleic acid and lauroyl diethanolamide protects the surface of the metal strip against rust in a very eiTective manner.
• the oleic acid is used in minor quantities ranging from 1% to about 5% by weight of concentrate.
• the amide is used in amounts ranging from about 4% to about 8% by weight of concentrate.
• compositions of this invention are particularly useful in the cold-rolling of steel, as well as in other metal-working operations.
• the lubricants herein described permit the high speed gauge reduction of the metal in metal rolling operations. They also provide an unusual improvement in removing metal fines caused in the rolling. It is well known that in rolling of metal, when the metal sheet is fed into rollers, small particles of metal may break oif. These particles usually remain in the lubricant. When normal lubricants are used, the smaller particles, or fines, do not always settle out when the lubricant is passed into the reservoir of holding tank at the conclusion of the rolling operation.
• the emulsion lubricants of this invention is unique in that the presence of the solid acid may act to reject the metal fines from the emulsion and float them to the surface where they are removed in the skimming step.
• the free acid flakes containing the metal fines float to the surface where thye are mechanically removed, e.g., skimmed off, leaving the resulting emulsified composition almost completely free of metal fines.
• the larger metal particles which could not be entrapped by the acid flakes present little problem, since they usually do not remain dispersed in the emulsion but settle to the bottom of the holding tank by gravity.
• the mixing was performed for about 1 hour, at about to C.
• the mixture was then passed through a Manton-Ga-ulin homogenizer for an additional hour.
• the resulting emulsion was cooled and the condensate was added over a halfhour period, with agitation, at a temperature below 50 C.
• the cooled mixture was again passed through the homogenizer, while maintaining the temperature below 50 C., for 1 hour.
• the storage stability of this emulsion at elevated temperatures was estimated by heating the emulsion to 150 F. and measuring the time it took for the emulsion to split. Under this temperature condition, only 1-2 hours were required for the emulsion to split.
• EXAMPLE 2 This example shows the eifect on storage stability using ingredients shown in Example 1, but with mixed oleyl phosphates. Preparation of composition and testing conditions were the same as set forth in Example 1.
• Naphthenic oil having a viscosity of SUS at: 100 F.
• Solvent refined paraifinic oil having a viscosity of 100 SUS at 100 F.
• Hydrogenated tallow fatty acids having the composition (wt. percent) 13% C14; 23-33% Cm; and 65-77% C18 *About 40% monool'eyl and 60% dioleyl.
• Aromatic oil I 14. 0 5.0 5.0 5. 0
• the aromatic oil used contained 95.2% of aromatics, 3.0% of polar resins. It had the following properties; Viscosity, SUS at 100 F., 50'. Specific gravity, 1.046: Pour point, 40 F.: Mixed aniline point, 03 F.: Refractive index at 20 0., 1.605.
• Example 6 composition has given consistently improved quality of cold-rolled steel, both low carbon and alloy steels.
• the improved quality is manifested by much improved brightness and cleanliness after annealing.
• An improved emulsifiable lubricating composition made by mixing from about 20% to about 50% by weight of a solid aliphatic monocarboxylic acid having from about to about 30 carbon atoms, from about 1% to about by weight of an alkanol-amine having from 2 to 4 carbon atoms in the alkanol group, rom about 0.05% to about 2 by weight of an aromatic sulfonate, from about 2% to about 15% by weight of a phosphate, the remainder being an oil, wherein said phosphate is a mixture of monoalkyl phosphate and dialkyl phosphate, the said alkyl containing from about 8 to about carbon atoms, and the said oil is an aromattic oil alone or in admixture with other oils wherein said other oils are present up to a maximum of about 50% of said aromatic oil, the aromatic oil having an aromatic content greater than 90% and a viscosity within the range of about 10- 150 SUS at 100 F.
• composition of claim 1 wherein said phosphate is a mixture of monooleyl phosphate and dioleyl phosphate.
• composition of claim 1 wherein the solid acid contains from about 14 to about 28 carbon atoms.
• An emulsion lubricant concentrate composition comprising from about 20% to about by weight of the composition of claim 1 and from'about to about 40% by weight of water, wherein the said solid acid remains as a solid component in the said emulsion composition.
• An emulsion lubricant composition comprising from about 0.75% to about 10% by weight of a composition of claim 1 and from about 99.25% to about by weight of water, wherein the said solid acid remains as a solid component in the said emulsion composition.
• composition of claim 1 wherein the said solid acid is stearic acid.
• composition of claim 1 wherein the said alkanolamine is triethanolamine.
• composition of claim 1 wherein the said emulsiher is lauroyl diethanolamide.
• composition of claim 1 wherein the aromatic sultonate is a naphthalene sulfonate-formaldehyde condensate.
• composition of claim 9 wherein the said condensate is in the form of an alkali metal salt thereof.
• composition of claim 2 wherein said monooleyle phosphate is present in said mixture to the extent of between about 30% and about 45% by weight thereof.
• composition of claim 2 wherein said dioleyl phosphate is present in said mixture to the extent of between about 70% and about 55% by weight thereof.

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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)

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• 1971
  • 1971-03-24 US US00127763A patent/US3723313A/en not_active Expired - Lifetime
  • 1971-03-24 US US00127764A patent/US3723314A/en not_active Expired - Lifetime
• 1972
  • 1972-01-25 CA CA133,124A patent/CA971157A/en not_active Expired
  • 1972-01-25 CA CA133,123A patent/CA969167A/en not_active Expired
  • 1972-02-03 JP JP47011901A patent/JPS5134844B1/ja active Pending
  • 1972-02-15 AU AU39012/72A patent/AU456255B2/en not_active Expired
  • 1972-02-17 DE DE19722207504 patent/DE2207504A1/de active Pending
  • 1972-02-23 AT AT145272A patent/AT320112B/de not_active IP Right Cessation
  • 1972-03-21 BE BE781017A patent/BE781017A/xx unknown
  • 1972-03-22 FI FI789/72A patent/FI53832C/fi active
  • 1972-03-22 IT IT22277/72A patent/IT950672B/it active
  • 1972-03-24 GB GB1387472A patent/GB1366768A/en not_active Expired
  • 1972-03-24 BR BR1738/72A patent/BR7201738D0/pt unknown
  • 1972-03-24 FR FR7210560A patent/FR2130714B1/fr not_active Expired

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