US1776753A - Manufacture of lubricating oils - Google Patents
Manufacture of lubricating oils Download PDFInfo
- Publication number
- US1776753A US1776753A US281369A US28136928A US1776753A US 1776753 A US1776753 A US 1776753A US 281369 A US281369 A US 281369A US 28136928 A US28136928 A US 28136928A US 1776753 A US1776753 A US 1776753A
- Authority
- US
- United States
- Prior art keywords
- manufacture
- stock
- distillation
- lubricating oils
- constituents
- 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
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G19/00—Refining hydrocarbon oils in the absence of hydrogen, by alkaline treatment
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G21/00—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents
- C10G21/06—Refining of hydrocarbon oils, in the absence of hydrogen, by extraction with selective solvents characterised by the solvent used
- C10G21/08—Inorganic compounds only
- C10G21/10—Sulfur dioxide
Definitions
- the present invention pertains to the manufacture of lubricating oils, and aims to produce lubricating oils of superior properties from mineral oils.
- distillation products thus obtained are distinguished from those heretofore produced by complete freedom from acid, by
- eating 0115 which comprises treating with reduced content of tar, by stability of color, and by increased resistance to oxidation.
- the process may be operated as follows: 1 v.
- the residual material obtained after ex tracting the lubricating oil stock with liquefied sulfur dioxide at a' temperature between 10 C. and +30 'C. is mixed with a concentrated aqueous solution of caustic soda amounting to 1% of NaOH in respect of the oil treated, and the mixture is thoroughly agitated prior to being distilled.
- the distillation proceeds preferably in the known manner according to the vacuum process, with a pressure of 7-15 mm. mercury, and with or without passing a current of steam throughthe stillfitHighly satisfactory results have thus been obtained?
- the process is not restricted to the specific materials and exactv operations described, but may be applied to the production of lubricating oils generally from .available petroleum stocks, particularly in the Texas and California fields.
- the step in the manufacture of 1ubrieating oils which comprises treating with lique ed sulfur dioxide petroleum lubricating oil stock obtained by fractional distillation, and subjecting the portion insoluble in liquefied sulfurous acid to vacuum distillation under a pressure of 7-15 mm. mercury in the presence ofa concentrated aqueous solution of caustic soda.
- An acid free lubricating oil low in tar obtained by the treatment of suitable min-- eral oil fractions'with liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and separation of the latter to remove the constituents soluble thereimfollowed by distillation of the insoluble constituents in the presence of an alkali.
- a substantially acid-free lubricating oil of low viscosity and tar content obtained by the extraction of suitable natural mineral oil fractionswith liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and sepa-.
- a substantially acid-free lubricating oil of low viscosity and tar content obtained by the extraction of suitable natural mineral oil fractions with liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and separation of the latter to remove the constituents soluble therein, followed by distillation of the insoluble constituents in the presence of an alkali and steam.
Landscapes
- 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)
- Inorganic Chemistry (AREA)
- Lubricants (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
Patented Sept. 23, 1930 UNITED STATES PATENT orrlca GESELLSCHAFT, M. H., OF BERLIN, GERMANY MANUFACTURE OI LUBBICATING OILS No Drawing. Application filed May 28, 1928, Serial No. 281,369, and in Great Britain April 14, 1928.
The present invention pertains to the manufacture of lubricating oils, and aims to produce lubricating oils of superior properties from mineral oils.
" More particularly, it relates to the treatment of lubricating oil stock after removing the lighter fractions, and consists in subjecting appropriate mineral oil fractions to the Well known extractiontreatment with liquefied sulfur dioxide to remove constituf ents soluble therein, for exam le, unsatu-. rated aromatic hydrocarbons, followed by distillation of the insoluble constituents in the presence of a little alkali, with or with out reduced pressure, and with or without the presence of water vapor.
The distillation products thus obtained are distinguished from those heretofore produced by complete freedom from acid, by
eating 0115 which comprises treating with reduced content of tar, by stability of color, and by increased resistance to oxidation.
In particular (a) all of the fractions obtained when distilling previously extracted lubricating oil stock in the presence of'causv tic soda are completely free from acid; (b) the tar content is on the average 2% less than with the same extracted stock not distilled in the presence of caustic soda or alkali. a
By way of example, the process may be operated as follows: 1 v.
The residual material obtained after ex tracting the lubricating oil stock with liquefied sulfur dioxide at a' temperature between 10 C. and +30 'C. is mixed with a concentrated aqueous solution of caustic soda amounting to 1% of NaOH in respect of the oil treated, and the mixture is thoroughly agitated prior to being distilled. The distillation proceeds preferably in the known manner according to the vacuum process, with a pressure of 7-15 mm. mercury, and with or without passing a current of steam throughthe stillfitHighly satisfactory results have thus been obtained? The process is not restricted to the specific materials and exactv operations described, but may be applied to the production of lubricating oils generally from .available petroleum stocks, particularly in the Texas and California fields.
I claim the following as my. invention:.
1. In the manufacture. of lubricating oil from mineral oil stock, extracting the stock with liquefied sulphur dioxide at low temperatures toseparate the, desirable lubricating stock from the soluble undesirable constituents and distilling the insoluble lubricatin stock in the presence of an alkali.
2. n the manufacture of lubricating oil from mineral oil stock, extracting the stock with liquefied sulphur dioxide at low temperatures to separate the desirable lubricating stock from the soluble undesirable constituents and distilling'the insoluble lubrieating stock under a Vacuum in the presence of an alkali.
3. The step in the manufacture of lubrilique d sulfur dioxide petroleum lubricatoil stock obtained by fractional distillation, and subjecting the portion insoluble in-liquefied sulfurous acid to distillation in the presence of a concentrated aqueous solution of caustic soda amounting to 1% NaOH with respect to the oil being treated.
4. The step in the manufacture of 1ubrieating oils which comprises treating with lique ed sulfur dioxide petroleum lubricating oil stock obtained by fractional distillation, and subjecting the portion insoluble in liquefied sulfurous acid to vacuum distillation under a pressure of 7-15 mm. mercury in the presence ofa concentrated aqueous solution of caustic soda.
5. An acid free lubricating oil low in tar obtained by the treatment of suitable min-- eral oil fractions'with liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and separation of the latter to remove the constituents soluble thereimfollowed by distillation of the insoluble constituents in the presence of an alkali.
. 6. A substantially acid-free lubricating oil of low viscosity and tar content obtained by the extraction of suitable natural mineral oil fractionswith liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and sepa-.
ration of the latter to remove the constituents 2 r mam soluble therein, followed by vacuum distillation of the insoluble constituents in the presence of an alkali.
7. A substantially acid-free lubricating oil of low viscosity and tar content obtained by the extraction of suitable natural mineral oil fractions with liquefied sulfur dioxide to dissolve unsaturated hydrocarbons and separation of the latter to remove the constituents soluble therein, followed by distillation of the insoluble constituents in the presence of an alkali and steam.
In testimony whereoflI have signed my name to this specification.
' LAZAR EDELEANU.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1776753X | 1928-04-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1776753A true US1776753A (en) | 1930-09-23 |
Family
ID=10890372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US281369A Expired - Lifetime US1776753A (en) | 1928-04-14 | 1928-05-28 | Manufacture of lubricating oils |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1776753A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905638A (en) * | 1956-06-11 | 1959-09-22 | Phillips Petroleum Co | Removal of sulfur dioxide from oils |
| US2966456A (en) * | 1957-01-02 | 1960-12-27 | Sun Oil Co | Removing acids from petroleum |
-
1928
- 1928-05-28 US US281369A patent/US1776753A/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2905638A (en) * | 1956-06-11 | 1959-09-22 | Phillips Petroleum Co | Removal of sulfur dioxide from oils |
| US2966456A (en) * | 1957-01-02 | 1960-12-27 | Sun Oil Co | Removing acids from petroleum |
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