US2281676A - Turbine oil - Google Patents

Turbine oil Download PDF

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Publication number
US2281676A
US2281676A US283379A US28337939A US2281676A US 2281676 A US2281676 A US 2281676A US 283379 A US283379 A US 283379A US 28337939 A US28337939 A US 28337939A US 2281676 A US2281676 A US 2281676A
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United States
Prior art keywords
oil
turbine
corrosion
acid
turbine oil
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Expired - Lifetime
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US283379A
Inventor
Cook Elmer William
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.)
TIDE WATER ASSOCIATED OIL Co
TIDE WATER ASSOCIATED OIL COMP
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TIDE WATER ASSOCIATED OIL COMP
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Priority to US283379A priority Critical patent/US2281676A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F11/00—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent
    • C23F11/08—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids
    • C23F11/10—Inhibiting corrosion of metallic material by applying inhibitors to the surface in danger of corrosion or adding them to the corrosive agent in other liquids using organic inhibitors
    • C23F11/12—Oxygen-containing compounds
    • C23F11/124—Carboxylic acids
    • C23F11/126—Aliphatic acids
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C—CHEMISTRY; METALLURGY
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    • C10L1/00—Liquid carbonaceous fuels
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    • C10L1/18—Organic compounds containing oxygen
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    • C10L10/06—Use of additives to fuels or fires for particular purposes for facilitating soot removal
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    • C10M131/08—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing halogen containing carbon, hydrogen, halogen and oxygen
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    • C10M135/00—Lubricating compositions characterised by the additive being an organic non-macromolecular compound containing sulfur, selenium or tellurium
    • C10M135/02—Sulfurised compounds
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B3/00—Line transmission systems
    • H04B3/02—Details
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    • C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
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    • C10L1/188—Carboxylic acids; metal salts thereof
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    • C10L1/14—Organic compounds
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    • C10L1/22—Organic compounds containing nitrogen
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    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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    • C10N2040/00—Specified use or application for which the lubricating composition is intended
    • C10N2040/135—Steam engines or turbines
    • 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
    • C10N2040/20—Metal working
    • C10N2040/22—Metal working with essential removal of material, e.g. cutting, grinding or drilling
    • 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
    • C10N2040/30—Refrigerators lubricants or compressors lubricants
    • 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
    • C10N2040/32—Wires, ropes or cables lubricants
    • 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
    • C10N2040/34—Lubricating-sealants
    • 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
    • C10N2040/36—Release agents or mold release agents
    • 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
    • C10N2040/38—Conveyors or chain belts
    • 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
    • C10N2040/40—Generators or electric motors in oil or gas winning field
    • 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
    • C10N2040/42—Flashing oils or marking oils
    • 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
    • C10N2040/44—Super vacuum or supercritical use
    • 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
    • C10N2040/50—Medical uses
    • 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

  • This invention relates to the art of lubrication and is more particularly concerned with the lubrication of steam turbines employing conventional circulatory pressure systems of lubrication.
  • the provision of new and novel lubricants and lubricating compositions having particular utility in turbine lubrication is likewise to be considered as encompassed within the broad scope and confines of the invention.
  • the saturated fatty acid addition agents coming within the scope of the present invention are substantially waterinsoluble, have from about 10 to about 20 carbon atoms in the chain and are exemplified by, but not limited to, the following illustrative compounds:
  • any suitable turbine oil base may be employed, the invention being in no wise limited in this respect since the long chain fatty acids exhibit corrosion inhibiting function regardless of the type of turbine oil employed.
  • the oil is a light, moderately refined, solvent treated petroleum distillate hav ng a 50-160 vie. at 00 1.
  • the long chain saturated fatty acids may be added to the turbine oil in any suitable corrosion inhibiting proportions. Ordinarily, concentrations of inhibitor as low as 0.02% are effective and recommended proportions range from 0.02% to 0.1%. In some instances larger or smaller amounts may be employed, but in no case should the neutralization number of the treated turbine oil be raised sufliciently to cause acid corrosion of the metal parts.
  • concentrations of inhibitor as low as 0.02% are effective and recommended proportions range from 0.02% to 0.1%. In some instances larger or smaller amounts may be employed, but in no case should the neutralization number of the treated turbine oil be raised sufliciently to cause acid corrosion of the metal parts.
  • the particular proportions employed depend upon the particular saturated fatty acid and the turbine oil compounded therewith, as well as the particular type of lubricant desired. It should be clearly understood, therefore, that the invention is not specifically limited with respect to proportions.
  • the saturated fatty acid addition agents may be incorporated into turbine oil in any suitable manner.
  • the acid may be dissolved in the oil simply by mixing the acid with the oil and agitating the mixture until a uniform solution is obtained.
  • the acids are readily and completely soluble in turbine oils.
  • a slight warming of the oil mixture during agitation facilitates solution. Warming to temperatures between 100 F. and 180 F. is usually sufilcient.
  • a master batch which may be subsequently blended with additional turbine oil to give the concentration of acid desired in a particular turbine lubricating system.
  • master batches are useful in improving the lubrimethod employed consisted in adding a small polished cold rolled steel bar or rod to the oil composition and stirring the oil for ten minutes after which 1% water was added. Stirring was continued for eight hours daily for live days and then the steel specimen was withdrawn and examined visually for corrosion. No rust spots were discerned. This is in contradistinction to the results of the same experiment carried out without the fatty acid addition, in which case rust spots formed within thirty minutes of the immersion of the steel specimen.
  • Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and an inhibitor eflective to retard corrosion of turbine parts by entrained water.
  • Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and a monocarboxylic saturated long chain fatty acid in an amount suflicient to retard corrosion of turbine parts by entrained water.
  • Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and stearic acid.
  • Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and myristic acid.
  • Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and lauric acid.

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  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Materials Engineering (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Health & Medical Sciences (AREA)
  • Emergency Medicine (AREA)
  • Combustion & Propulsion (AREA)
  • Lubricants (AREA)

Description

Fatented May 5, 1 942 sss PAET FE TURBINE 01L No Drawing.
Application July 8, 1939.
Serial No. 283,379
5 Claims. (Cl. 25 2-56) This invention relates to the art of lubrication and is more particularly concerned with the lubrication of steam turbines employing conventional circulatory pressure systems of lubrication. The provision of new and novel lubricants and lubricating compositions having particular utility in turbine lubrication is likewise to be considered as encompassed within the broad scope and confines of the invention.
Mineral lubricating oil when employed in circulatory turbine lubricating systems, is subject to, and almost invariably undergoes, serious deterioration caused by heat and aeration, resulting in excessive sludge formation in the oil and eventually requiring shut-down. of the turbine. Degradation of the oil per se in the manner aforesaid has now been substantially obviated through the use of small amounts of added inhibitors having the desired power of successfully retarding or mitigating oxidation and/or acid formation and consequent sludge formation in the oil. v
Due to recent changes in design of steam turbines another difficulty in turbine operation, to which little attention heretofore had been paid, has become a serious problem. In circulating through the turbine the lubricating medium, whether it be mineral oil or deterioration-inmulation is to cause the governor control mechanism to stick, and the turbine then has to be shut down for repair or replacement of parts.
It is an important objective of the present invention, therefore, to provide adequate means for solving the aforesaid problem of rust and corrosion of turbine parts. 'A further and more specific objective is the provision of new and novel lubricating compositions and their application to turbine parts to retard and inhibit corrosive action of entrained steam condensate. Ineluded also within the broad objectives of the invention is the production of steam turbine lubricating oil compositions treated with and containing addition agents which exhibit inhibiting action in respect of corrosive or rusting tendenlubited mineral oil of the type referred to, be-
comes unavoidably mixed with, or wetted by, steam condensate from the system. This entrained condensate in the course of lubricant circulation comes in contact with various metal parts of the turbine and occasions or tends to occasion rusting or corrosion thereof to greater or lesser degree. While generally objectionable such rusting is particularly serious in its effect upon steel parts of the governor control mechanism since an undue accumulation of rust may cause serious interference with its proper operation. In the older turbines of relatively low capacity and operated at relatively low temperatures. the speed at which the governor control mechanism operated frequently was sufficient to prevent much accumulation of rust; and consequently the water corrosion problem while present was usually ignored. In many new steam turbine installations of much higher capacity and operating at relatively high temperatures a new type of governor control mechanism is employed. The movement of this newer mechanism is extremely slow and this provides an opportunity for excessive accumulation of rust due to corrosion by the steam'condensate entrained in the lubricant. The natural result of such rust aQcucies of steam condensate entrained in the lubricant, but which do not deleteriously affect the lubricating and other qualities of the oil.
These and other objectives are attained through the addition to turbine lubricating oil of a small amount of a saturated long chain fatty acid, or of mixtures thereof. Preferably, although not necessarily, the saturated fatty acid addition agents coming within the scope of the present invention are substantially waterinsoluble, have from about 10 to about 20 carbon atoms in the chain and are exemplified by, but not limited to, the following illustrative compounds:
Lauric acid CuHzaCOOH Myristic acid CraHzwCOOI-I Palmitic acid C15Ha1COOH Stearic acid C17H35COOH It is a prerequisite of turbine oil addition agents that the action thereof does not deleteriously affect in any way the good demulsibility value of refined turbine oil. Long chain fatty acids employed as corrosion inhibitors in turbine oils in accordance with the present invention do not impair the demulsibility of the oil. This has been confirmed by actual tests using varying small amounts of stearic acid in a moderately refined, solvent treated oil. In all instances the demulsibility value at F. was the same for the treated oil as for the untreated oil.
In the practice of the present invention any suitable turbine oil base may be employed, the invention being in no wise limited in this respect since the long chain fatty acids exhibit corrosion inhibiting function regardless of the type of turbine oil employed. Preferably, the oil is a light, moderately refined, solvent treated petroleum distillate hav ng a 50-160 vie. at 00 1. As
pointed out hereinbefore, it is within the scope of the present invention to employ turbine oils previously inhibited in respect of oxidation or other oil deterioration. In this latter instance, addition" of acids for the purpose of corrosion inhibition in no way influences or aifects the action of the oxidation inhibitor in the oil composition. The long chain fatty acids added for anti-rusting purposes likewise are unaiiected in the performance of their intended function by the coincident presence of an oxidation inhibitor. Comparative stability tests (the conventional Funk test) showed a turbine oil containing an oxidation inhibitor and a corrosion inhibitor to be fully as stable as a turbine oil containing the same oxidation inhibitor but uninhibited against corrosion.
The long chain saturated fatty acids may be added to the turbine oil in any suitable corrosion inhibiting proportions. Ordinarily, concentrations of inhibitor as low as 0.02% are effective and recommended proportions range from 0.02% to 0.1%. In some instances larger or smaller amounts may be employed, but in no case should the neutralization number of the treated turbine oil be raised sufliciently to cause acid corrosion of the metal parts. The particular proportions employed depend upon the particular saturated fatty acid and the turbine oil compounded therewith, as well as the particular type of lubricant desired. It should be clearly understood, therefore, that the invention is not specifically limited with respect to proportions.
The saturated fatty acid addition agents may be incorporated into turbine oil in any suitable manner. The acid may be dissolved in the oil simply by mixing the acid with the oil and agitating the mixture until a uniform solution is obtained. In the amounts here employed. the acids are readily and completely soluble in turbine oils. In some instances a slight warming of the oil mixture during agitation facilitates solution. Warming to temperatures between 100 F. and 180 F. is usually sufilcient.
It is also within the scope of the present invention to dissolve the acid in a part of the turbine oil to form a master batch. which may be subsequently blended with additional turbine oil to give the concentration of acid desired in a particular turbine lubricating system. These master batches are useful in improving the lubrimethod employed consisted in adding a small polished cold rolled steel bar or rod to the oil composition and stirring the oil for ten minutes after which 1% water was added. Stirring was continued for eight hours daily for live days and then the steel specimen was withdrawn and examined visually for corrosion. No rust spots were discerned. This is in contradistinction to the results of the same experiment carried out without the fatty acid addition, in which case rust spots formed within thirty minutes of the immersion of the steel specimen.
I claim:
1. Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and an inhibitor eflective to retard corrosion of turbine parts by entrained water.
2. Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and a monocarboxylic saturated long chain fatty acid in an amount suflicient to retard corrosion of turbine parts by entrained water.
3. Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and stearic acid.
4. Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and myristic acid.
5. Turbine oil composition comprising a hydrocarbon mineral oil, an oxidation inhibitor and lauric acid.
ELMER. WILLIAM COOK.
US283379A 1939-07-08 1939-07-08 Turbine oil Expired - Lifetime US2281676A (en)

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Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434978A (en) * 1944-04-15 1948-01-27 William A Zisman Anticorrosion additives for synthetic lubricants
US2435655A (en) * 1944-06-29 1948-02-10 Standard Oil Co Lubricant
US2442672A (en) * 1941-02-18 1948-06-01 Shell Dev Rust-preventive hydrocarbon compositions
US2447483A (en) * 1944-04-15 1948-08-24 Us Navy Additives for silicone oils
US2481372A (en) * 1946-09-27 1949-09-06 Shell Dev Rust protective lubricants
US2527889A (en) * 1946-08-19 1950-10-31 Union Oil Co Diesel engine fuel
US2610919A (en) * 1946-06-08 1952-09-16 Sinclair Refining Co Rust inhibiting composition
DE852589C (en) * 1949-03-22 1952-10-16 Ruhrchemie Ag Process for preventing or eliminating the emulsifiability of turbine oils
US2686713A (en) * 1950-12-09 1954-08-17 Socony Vacuum Oil Co Inc Sulfate process tall oil as a rust inhibitor for fuel fractions of mineral oil
US2775560A (en) * 1954-06-21 1956-12-25 Shell Dev Corrosion inhibitting lubricating compositions
US2779739A (en) * 1957-01-29 Turbine lubricating oil compositions
US2833714A (en) * 1955-09-28 1958-05-06 Standard Oil Co Lubricant compositions
US3431209A (en) * 1966-08-26 1969-03-04 Us Army Solvent degreasing,self-emulsifying cleaning composition
US3850827A (en) * 1971-04-19 1974-11-26 Smith W Inc Sperm oil substitute from blend of carboxylic acid esters of glycols
US4027070A (en) * 1974-03-08 1977-05-31 Nippon Steel Corporation Steel plate for preparing cans by ironing
US5681506A (en) * 1992-10-30 1997-10-28 Castrol Limited Corrosion inhibiting lubricant composition
US20060019840A1 (en) * 2002-08-22 2006-01-26 New Japan Chemical Co., Ltd. Lubricating oil for bearing

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779739A (en) * 1957-01-29 Turbine lubricating oil compositions
US2442672A (en) * 1941-02-18 1948-06-01 Shell Dev Rust-preventive hydrocarbon compositions
US2447483A (en) * 1944-04-15 1948-08-24 Us Navy Additives for silicone oils
US2434978A (en) * 1944-04-15 1948-01-27 William A Zisman Anticorrosion additives for synthetic lubricants
US2435655A (en) * 1944-06-29 1948-02-10 Standard Oil Co Lubricant
US2610919A (en) * 1946-06-08 1952-09-16 Sinclair Refining Co Rust inhibiting composition
US2527889A (en) * 1946-08-19 1950-10-31 Union Oil Co Diesel engine fuel
US2481372A (en) * 1946-09-27 1949-09-06 Shell Dev Rust protective lubricants
DE852589C (en) * 1949-03-22 1952-10-16 Ruhrchemie Ag Process for preventing or eliminating the emulsifiability of turbine oils
US2686713A (en) * 1950-12-09 1954-08-17 Socony Vacuum Oil Co Inc Sulfate process tall oil as a rust inhibitor for fuel fractions of mineral oil
US2775560A (en) * 1954-06-21 1956-12-25 Shell Dev Corrosion inhibitting lubricating compositions
US2833714A (en) * 1955-09-28 1958-05-06 Standard Oil Co Lubricant compositions
US3431209A (en) * 1966-08-26 1969-03-04 Us Army Solvent degreasing,self-emulsifying cleaning composition
US3850827A (en) * 1971-04-19 1974-11-26 Smith W Inc Sperm oil substitute from blend of carboxylic acid esters of glycols
US4027070A (en) * 1974-03-08 1977-05-31 Nippon Steel Corporation Steel plate for preparing cans by ironing
US5681506A (en) * 1992-10-30 1997-10-28 Castrol Limited Corrosion inhibiting lubricant composition
US20060019840A1 (en) * 2002-08-22 2006-01-26 New Japan Chemical Co., Ltd. Lubricating oil for bearing
US7517838B2 (en) * 2002-08-22 2009-04-14 New Japan Chemical Co., Ltd. Lubricating oil for bearing

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