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US4344854A
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Sulfurized compositions
Assignee: Lubrizol Corp
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Filing: 1979-07-16
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Granted: 1982-08-17
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Expires: 1999-07-16
Abstract
Abstract Sulfurized compositions are prepared by the reaction, under superatmospheric pressure, of olefinic compounds with a mixture of sulfur and hydrogen sulfide, followed by removal of low boiling materials including unreacted olefin, mercaptan and monosulfide. An optional final step is removal of active sulfur; for example, by treatment with an alkali metal sulfide. The resulting sulfurized compositions are useful as lubricant additives.
Inventors
- 👤 Kirk E. Davis
- 👤 Thomas F. Holden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:00
CPC Classifications
C; C07; C07G; C07G99/00; C07G99/002; C07G99/0022; C10; C10M; C10M2203/00; C10M2203/06; C10M2203/10; C10M2203/102; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/024; C10M2205/026; C10M2205/028; C10M2205/14; C10M2207/00; C10M2207/04; C10M2207/28; C10M2207/281; C10M2207/282; C10M2207/283; C10M2207/286; C10M2207/34; C10M2207/40; C10M2207/402; C10M2207/404; C10M2209/00; C10M2209/02; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2209/109; C10M2209/11; C10M2209/111; C10M2211/00; C10M2211/06; C10M2211/08; C10M2213/00; C10M2213/02; C10M2213/06; C10M2213/062; C10M2219/00; C10M2219/02; C10M2219/022; C10M2219/024; C10M2219/04; C10M2219/044; C10M2219/046; C10M2219/06; C10M2219/062; C10M2219/066; C10M2219/068; C10M2219/08; C10M2219/082; C10M2219/083; C10M2219/086; C10M2219/087; C10M2219/089; C10M2221/00; C10M2221/04; C10M2221/041; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/041; C10M2223/042; C10M2223/045; C10M2223/06; C10M2223/065; C10M2223/12; C10M2225/00; C10M2225/04; C10M2225/041; C10M2227/00; C10M2227/02; C10M2229/00; C10M2229/04; C10M2229/041; C10M2229/042; C10M2229/045; C10M2229/046; C10M2229/047; C10M2229/048; C10M2229/05; C10N; C10N2010/00; C10N2010/02; C10N2010/04; C10N2020/00; C10N2020/01; C10N2040/00; C10N2040/02; C10N2040/08; C10N2040/12; C10N2040/13; C10N2040/135; C10N2040/20; C10N2040/25; C10N2040/252; C10N2040/253; C10N2040/255; C10N2040/26; C10N2050/00; C10N2050/10; C10N2070/00; C10N2070/02; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/582
Claims Analysis
Total Claims: 41
Claim 1
Independent Claim
86 words
A method for the preparation of a sulfurized composition which comprises the steps of reacting at about 50°-300° C., under superatmospheric pressure and in the absence of catalysts, sulfur and hydrogen sulfide with at least one olefinic compound containing 3 to about 30 carbon atoms to form a sulfurized mixture; about 1.2-3.0 gram-atoms of sulfur and about 0.1-1.5 moles of hydrogen sulfide being used per mole of olefinic compound; and removing from said sulfurized mixture substantially all low boiling materials including unreacted olefin, mercaptan and monosulfide.
Claim 2
Independent Claim
86 words
A method for the preparation of a sulfurized composition which comprises the steps of reacting at about 50°-300° C., under superatmospheric pressure and in the absence of catalysts, sulfur and hydrogen sulfide with at least one olefinic compound containing 3 to about 30 carbon atoms to form a sulfurized mixture; about 1.2-3.0 gram-atoms of sulfur and about 0.1-1.5 moles of hydrogen sulfide being used per mole of olefinic compound; and removing from said sulfurized mixture substantially all low boiling materials including unreacted olefin, mercaptan and monosulfide.
Claim 3
Dependent Claim
14 words
The method according to claim 1 wherein the reaction temperature is about 100°-200° C.
Claim 4
Dependent Claim
27 words
The method according to claim 2 wherein about 1.2-2.0 gram-atoms of sulfur and about 0.2-1.25 moles of hydrogen sulfide are used per mole of the olefinic compound.
Claim 5
Dependent Claim
21 words
The method according to claim 3 wherein about 0.4-0.8 mole of hydrogen sulfide is used per mole of the olefinic compound.
Claim 6
Dependent Claim
22 words
The method according to claim 4 wherein the olefinic compound is an olefinic hydrocarbon containing from 3 to about 16 carbon atoms.
Claim 7
Dependent Claim
21 words
The method according to claim 5 wherein at least one of the olefinic compounds has one or two carbon-to-carbon double bonds.
Claim 8
Dependent Claim
22 words
The method according to claim 6 wherein the olefin is a monoolefin selected from propane, isobutene and dimers, trimers and tetramers thereof.
Claim 9
Dependent Claim
13 words
The method according to claim 7 wherein the olefin is isobutene or diisobutene.
Claim 10
Independent Claim
85 words
The method for the preparation of a sulfurized composition which comprises the steps of reacting at about 50°-300° C., under superatmospheric pressure and in the absence of catalysts, sulfur and hydrogen sulfide with at least one terminal aliphatic monoolefin containing less than 9 carbon atoms to form a sulfurized mixture, about 1.2-2.0 gram-atoms of sulfur and about 0.1-1.5 moles of hydrogen sulfide being used per mole of monoolefin; and removing from said sulfurized mixture substantially all low boiling materials including unreacted monoolefin, mercaptan and monosulfide.
Claim 11
Independent Claim
85 words
The method for the preparation of a sulfurized composition which comprises the steps of reacting at about 50°-300° C., under superatmospheric pressure and in the absence of catalysts, sulfur and hydrogen sulfide with at least one terminal aliphatic monoolefin containing less than 9 carbon atoms to form a sulfurized mixture, about 1.2-2.0 gram-atoms of sulfur and about 0.1-1.5 moles of hydrogen sulfide being used per mole of monoolefin; and removing from said sulfurized mixture substantially all low boiling materials including unreacted monoolefin, mercaptan and monosulfide.
Claim 12
Dependent Claim
27 words
The method according to claim 9 wherein the reaction temperature is about 100°-200° C. and about 0.2-1.0 mole of hydrogen sulfide is used per mole of monoolefin.
Claim 13
Dependent Claim
11 words
The method according to claim 10 wherein the monoolefin is isobutene.
Claim 14
Dependent Claim
26 words
The method according to claim 10 wherein about 1.2-1.5 gram-atoms of sulfur and about 0.4-0.8 mole of hydrogen sulfide are used per mole of the monoolefin.
Claim 15
Dependent Claim
29 words
The method according to claim 1 which includes the step of treating the product after removal of low boiling materials with an alkali metal sulfide to reduce active sulfur.
Claim 16
Dependent Claim
22 words
The method according to claim 13 wherein the olefinic compound is a monoolefinic hydrocarbon containing from 3 to about 16 carbon atoms.
Claim 17
Dependent Claim
22 words
The method according to claim 14 wherein the olefin is at least one of propene, isobutene and dimers, trimers and tetramers thereof.
Claim 18
Dependent Claim
13 words
The method according to claim 15 wherein the olefin is isobutene or diisobutene.
Claim 19
Dependent Claim
29 words
The method according to claim 9 which includes the step of treating the product after removal of low boiling materials with an alkali metal sulfide to reduce active sulfur.
Claim 20
Dependent Claim
11 words
The method according to claim 17 wherein the olefin is isobutene.
Claim 21
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 1.
Claim 22
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 3.
Claim 23
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 5.
Claim 24
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 7.
Claim 25
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 8.
Claim 26
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 9.
Claim 27
Dependent Claim
10 words
The sulfurized composition prepared by the method of claim 11.
Claim 28
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 19.
Claim 29
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 20.
Claim 30
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 21.
Claim 31
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 22.
Claim 32
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 23.
Claim 33
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 24.
Claim 34
Dependent Claim
22 words
An additive concentrate comprising a substantially inert, normally liquid diluent and about 20-90% by weight of the sulfurized composition of claim 25.
Claim 35
Dependent Claim
32 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties, of a sulfurized composition according to claim 19.
Claim 36
Dependent Claim
32 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties, of a sulfurized composition according to claim 20.
Claim 37
Dependent Claim
32 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties, of a sulfurized composition according to claim 21.
Claim 38
Dependent Claim
32 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties, of a sulfurized composition according to claim 22.
Claim 39
Dependent Claim
32 words
A lubricating composition comprising a major proportion of lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties, of a sulfurized composition according to claim 23.
Claim 40
Dependent Claim
43 words
A lubricating composition comprising a major proportion of a lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties and comprising about 0.1-10% by weight of said lubricating composition, of a sulfurized composition according to claim 24.
Claim 41
Dependent Claim
43 words
A lubricating composition comprising a major proportion of a lubricating oil and a minor proportion, sufficient to improve extreme pressure, anti-wear or oxidation inhibiting properties and comprising about 0.1-10% by weight of said lubricating composition, of a sulfurized composition according to claim 25.
References Cited (Backward Citations)
US4191659A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-08-16 | 1986-02-15 | 1986-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-08-16 | 1990-02-15 | 1990-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-08-16 | 1994-02-15 | 1994-08-17 | $7700.00 | Window Closed / Lapsed |