US9630A - Improvement in preparing lubricating-oils - Google Patents

Improvement in preparing lubricating-oils Download PDF

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US9630A
US9630A US9630DA US9630A US 9630 A US9630 A US 9630A US 9630D A US9630D A US 9630DA US 9630 A US9630 A US 9630A
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oil
oils
coup
fahrenheit
lubricating
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10MLUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
    • C10M1/00Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants
    • C10M1/08Liquid compositions essentially based on mineral lubricating oils or fatty oils; Their use as lubricants with additives
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S585/00Chemistry of hydrocarbon compounds
    • Y10S585/929Special chemical considerations
    • Y10S585/943Synthesis from methane or inorganic carbon source, e.g. coal

Definitions

  • Theinvention hereinafter described is founded on a discovery which I have madc-viz., that the substance called paranaphthaline alone and especially when mixed with oils is a very excellent lubricator for metal surfaces.
  • a combination or composition of this substance with fixed oil may be separated in large quantities from coal-tar, and purified so as to fit it for use for the purpose stated.
  • coal-tar there are many different hydrocarbons, whose boilingpoints are at various temperatures below 480 Fahrenheit. These substances I reject in my process and carry on the distillation at a higher temperature under'ce'rtain modifications, so as to produce a mixture of oil with paranaphthaline having the fixity of such oil as sperm-oil. I particularlyintend to use this new manufacture or mixture obtained from coal-tar for inbricating purposes, either as a simple compound of paranaphthaline and fixed oil, or when added to other oils, so as to render them good lubricators.
  • the whole distillate is removed to an iron cylindrical vessel, which can be heated by steam and is provided with a stirringapparaius.
  • the vapor in the retort reaches the temperature of 450 Fahrenheit.
  • the vapor attainstheheatof450Fahrenheitthecondens er is opened to another reservoir, and thc'oily products rising in consequence of increased heat applied to the still are received apart from the first products condensed.
  • the distillation is to be continued until by observation the temperature of the vapor marks about 670 Fahrenheit, when the operation may cease and the thick residue in the still be discharged from the bottom into suitable ves sels.
  • the slightly impure oil thus obtained must be mixed in a leaden vessel with sulphuric acid in the proportion of about twenty five pounds of acid to one hundred gallons of the oil and agitated for aboutthreehours.
  • the clear oil receives its final purification by agitation with a solution of caustic soda, about 25 Baum,'in the proportion of about one hundred pounds of the solution to one hundred gallons of the oil.
  • a solution of caustic soda about 25 Baum
  • the oil When removed from this alkaline solution the oil must be distilled from a retort of iron containing about twelve pounds of hydrate of potash orsoda,previously mixed with the whole about four hours. Allowing the acid about one gallon of water, for every one hundred gallons of oil, receiving apart the oil condensing at 450 to 480, and stopping the operation when the vapors rise intemperature to 650 Fahrenheit.
  • the oil condensed from this operation is the new compound or manufacture, which, under the name of Coup-Oil, Iintend to use as a lubricator of great Value when applied to machinery and especially to light machinery in rapid motion.
  • paranaphthaline be mixedwith thin oils, it serves to give body to themand to either give them lubricating properties or toim prove them as lubricators.
  • a combination of fixed oiland paranaphthalinc without the addition of any other chemical compound, known as naphtha, naphthaline, &c., as set forth, is therefore a new composition of matternot known or used in the arts before my discovery or invention.
  • My improved manufacture of coup-oil differs essentially from paraffine oil, for, as the former is a composition of fixed oils and paranaphthaline, and as paranaphthaline is a composition of thirty parts carbon to twelve of hydrogen, and asparaffine is a compound consisting of forty-eight parts carbon to fifty of hydrogen, we find the carbon and hydrogen in very different proportions in the coup-oil to what they are in the paraffine-oil.
  • paraffine-oil can be burned in a lamp with a fine white flame
  • the coup-oil on account of the dense volume of smoke produced, cannot be burned in those lamps specially adapted to burninghydrocarbons. Paraffine-oil and paraffine are produced in the distillation of bituminous coals by a slow fire.
  • Coup-oil is first produced by the decomposition of coal in making gas, and is eliminated from the tar compounds by the process above described.
  • the coup-oil cannot be produced by the distillation of coals; but in order to produce it the coals must be decomposed by sudden violent heat and converted into gas and tar. No process to which coup-oil can be subjected will produce paratiine from it, while paraffine-oil allows paraffine to separate from it on cooling, and yields it by compression.
  • the oils differ as a solution of beeswax in oil differs from a solution of spermaceti in spermaceti-oil.
  • paratfine-oil partaking of the nature of wax, does not in its mixture with concrete oils or fats confer mobility; nor does it, like coup-oil, which resembles spermaceti-oil, increase the antifriction properties of such oils or fats, or improve them in any like degree for lubricating purposes.

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

Description

0 UNITED STATES PATENT OFFICE.
LUTHER ATIVOOD, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT lN PREPARING LUBRlCATlNG-OILS.
Specification forming part of Letters Patent No. 9,630, dated March 29, 1853.
To all whom it may concern Be it known that I, LUTHER A'IWOOD, of Boston, in the county of Suii'olk and State of Massachusetts, have invented or discovered a new and useful chemical material, composition, or manufacture, which I denominate Coup-Oil, to be used particularly for lubricating purposes; and I do hereby declarethat the same and the mode of produeingit are.
fullydescribed in the following specification.
Theinvention hereinafter described is founded on a discovery which I have madc-viz., that the substance called paranaphthaline alone and especially when mixed with oils is a very excellent lubricator for metal surfaces. By means of a process hereinafter explained a combination or composition of this substance with fixed oil may be separated in large quantities from coal-tar, and purified so as to fit it for use for the purpose stated.
It is well known that in coal-tar there are many different hydrocarbons, whose boilingpoints are at various temperatures below 480 Fahrenheit. These substances I reject in my process and carry on the distillation at a higher temperature under'ce'rtain modifications, so as to produce a mixture of oil with paranaphthaline having the fixity of such oil as sperm-oil. I particularlyintend to use this new manufacture or mixture obtained from coal-tar for inbricating purposes, either as a simple compound of paranaphthaline and fixed oil, or when added to other oils, so as to render them good lubricators.
The process which in practice is found to he effieient in producing my said new manufacture or composition, to which I give the name of Coup-Oil, is as follows: Into a horizontal cylindrical retort connected with a suit.- able condenser or worm I introduce a quantity of crude coal-tar. Heat being applied, vapors of fluids are condensed in the condenser until the temperature of the vapor in the retort rises to about 700 Fahrenheit, before which time the condenser must be allowed to attain the temperature of 150 to 175 Fahrenheit. Having separated the aqueous and ammoniacal flnids,the whole distillate is removed to an iron cylindrical vessel, which can be heated by steam and is provided with a stirringapparaius. For every one hundred wine gallons of distillate to be treated, I use about two hundred pounds, avoirdupois,ofsolution of caustic soda, marking about 25 Baum, and I agitate powerfully for about two hours this mixture of fluids, raising the temperature to about 120Fahrenheit. After repose for subsidence the clear distillate is removed to a leaden vessel provided with an agitator. When the fluid has been rapidly stirred 1 add about fifty pounds of sulphuric acid for every parcel of one hundred gallons, and continue to stir to subside, the clear oil is removed to an iron vessel like that before used, and agitated with aboutone hundred pounds of solution of cans tic soda, making about 25 Baum, for two hours. After this has reposed for about six hours the clear oils on the surface are prepared for distillation. A hemispherical castiron retort is used for distilling the purified mixture of oils, and the condenser, which is connected with it is so arranged that its temperature will not fall below 150 Fahrenheit. At the end of the condenser is a loosely-covcred receiver, into which all the products fall until. the vapor in the retort reaches the temperature of 450 Fahrenheit. When the vapor attainstheheatof450Fahrenheitthecondens er is opened to another reservoir, and thc'oily products rising in consequence of increased heat applied to the still are received apart from the first products condensed. The distillation is to be continued until by observation the temperature of the vapor marks about 670 Fahrenheit, when the operation may cease and the thick residue in the still be discharged from the bottom into suitable ves sels. The slightly impure oil thus obtained must be mixed in a leaden vessel with sulphuric acid in the proportion of about twenty five pounds of acid to one hundred gallons of the oil and agitated for aboutthreehours. The acid being allowed to subside, the clear oil receives its final purification by agitation with a solution of caustic soda, about 25 Baum,'in the proportion of about one hundred pounds of the solution to one hundred gallons of the oil. When removed from this alkaline solution the oil must be distilled from a retort of iron containing about twelve pounds of hydrate of potash orsoda,previously mixed with the whole about four hours. Allowing the acid about one gallon of water, for every one hundred gallons of oil, receiving apart the oil condensing at 450 to 480, and stopping the operation when the vapors rise intemperature to 650 Fahrenheit. The oil condensed from this operation is the new compound or manufacture, which, under the name of Coup-Oil, Iintend to use as a lubricator of great Value when applied to machinery and especially to light machinery in rapid motion.
I have found that this composition, when mixed with common oils, confers its high powers as a lubricator on them, rendering such oils as are naturally unfitforthis purpose very useful for lubricating large bearings when from the great friction much body is required. When mixed with oils and even fats the coupoil renders them more mobile and prevents solidification at ordinary temperatures, in some cases enabling the mixture to bear a greater reduction of tem peraiure than naturally occurs.
If paranaphthaline be mixedwith thin oils, it serves to give body to themand to either give them lubricating properties or toim prove them as lubricators.
In the above process I produce what has usually been termed the dead-oil of commerce, the componentparts of which are naphtha, naphthaline, fixed oil. boiling at 440 to 500 Fahrenheit. Havingproduced said deadoil, I carry the process of distillation to, or about to, the extentabove set forth, and produce the new manufacture which I have termed Coup-Oil, theconstitueutparts of which are fixed oils boiling from 450 to 675 Fahrenheit, and pure paranaphthaline only. Thus it will be seen that I remove from the dead-oi], by means of my alkaline and acid applications, conjoined withdistillations in the ordernamed, naphtha, naphthaline, and crude tarry products, all of which render the common (leadoil inapplicable for lubricating nice machinery or that used at high speed. Coup-oil can be mixed with other oils, conferring on them lubricating properties, whereas dead-oil cannot beso applied. Chemically speaking, the proximate elements present in common (lead-oil are modified by the operation of heat and solvents, so as to produce a new body consisting offixedoiland pure paranaphthaline. A combination of fixed oiland paranaphthalinc without the addition of any other chemical compound, known as naphtha, naphthaline, &c., as set forth, is therefore a new composition of matternot known or used in the arts before my discovery or invention.
My improved manufacture of coup-oil differs essentially from paraffine oil, for, as the former is a composition of fixed oils and paranaphthaline, and as paranaphthaline is a composition of thirty parts carbon to twelve of hydrogen, and asparaffine is a compound consisting of forty-eight parts carbon to fifty of hydrogen, we find the carbon and hydrogen in very different proportions in the coup-oil to what they are in the paraffine-oil. While paraffine-oil can be burned in a lamp with a fine white flame, the coup-oil, on account of the dense volume of smoke produced, cannot be burned in those lamps specially adapted to burninghydrocarbons. Paraffine-oil and paraffine are produced in the distillation of bituminous coals by a slow fire. Coup-oil is first produced by the decomposition of coal in making gas, and is eliminated from the tar compounds by the process above described. The coup-oil cannot be produced by the distillation of coals; but in order to produce it the coals must be decomposed by sudden violent heat and converted into gas and tar. No process to which coup-oil can be subjected will produce paratiine from it, while paraffine-oil allows paraffine to separate from it on cooling, and yields it by compression. By way of illustration, the oils differ as a solution of beeswax in oil differs from a solution of spermaceti in spermaceti-oil.
An advantage which my coupoil possesses over paraffine-oil arises from the fact that when it is mixed with many other oils or fatty matters it not only forms with them a new composition, but imparts to them useful properties such as they do not receive on being mixed with paraffine-oil. I
It will readily be seen that paratfine-oil, partaking of the nature of wax, does not in its mixture with concrete oils or fats confer mobility; nor does it, like coup-oil, which resembles spermaceti-oil, increase the antifriction properties of such oils or fats, or improve them in any like degree for lubricating purposes.
What, therefore, I clgim as my invention 1s- 1. The coup-oil, or new manufacture, (or com bination of paranaphthaline and fixed oils de rived from coal-tar and boiling from 450 to 675 Fahrenheit,) as produced by the process substantially as here-inhefore described, the said new manufacture being highly useful as a lubricating composition, either alone or combined with oils or fatty matters, as above set forth.
2. Thecombination of this product so made with concrete or thick fatty matters or oils for the purpose of liquefying them or rendering them more mobile or imparting to them lubricating qualities, as hereinbcfore specified.
In testimony whereof I have hereto set my signature this 3 lst day of January, A. D. 1853.
- LUTHER ATWOOD.'
Witnesses:
F. P. HALE, Jr., R. H. EDDY.
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