US4016093A
Expired / Lapsed
US
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Metal alkylphenate sulfides of reduced corrosiveness and method of preparing same
Assignee: Mobil Oil AS
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Filing: 1976-03-19
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Granted: 1977-04-05
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Expires: 1996-03-19
Abstract
Abstract Neutral and overbased metal alkylphenate sulfides prepared by the steps of (1) reacting an alkylphenol sulfide with minor amounts of a basic material; (2) subjecting the reaction mixture of step (1) to steam sparging, carbonation, air sparging or a combination thereof; (3) reacting the product of step (2) with a metal oxide or hydroxide in the presence of an alcohol and carbon dioxide; and (4) subjecting the product of step (3) to steam sparging, carbonation, air sparging or a combination thereof, provide lower corrosiveness than conventional overbased metal alkylphenate sulfides. Fluid organic compositions such as, for example, oils and fuels which contain one or more of the present metal alkylphenate sulfides have excellent detergency and minimal corrosiveness with respect to metal surfaces.
Inventors
- 👤 Emil Koft, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:32
CPC Classifications
C; C10; C10M; C10M159/00; C10M159/12; C10M159/20; C10M159/22; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/24; C10L1/2406; C10L1/2412; C10M135/00; C10M135/20; C10M135/28; C10M135/30; C10M2201/00; C10M2201/06; C10M2201/062; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/22; C10M2215/221; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/08; C10M2219/082; C10M2219/087; C10M2219/088; C10M2219/089; C10N; C10N2010/00; C10N2010/02; C10N2010/04
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
210 words
A process for preparation of a metal alkylphenate sulfide which provides reduced corrosivity to metals comprising the steps of (1) reacting an alkylphenol sulfide with a minor amount of a basic material selected from the group consisting of an amine having the formula RNH 2 , RR'NH or RR'R"N wherein R, R' and R" are the same or different alkyl group of from 1 to about 20 carbon atoms, an alkylene polyamine having the formula H 2 N(C m H 2m NH) z --C m H 2m NH 2 wherein m is an integer of 2 or 3 and z is 0 or an integer of from 1 to 10 and a cyclic amine at a temperature of from about 100° C to about 250° C, (2) subjecting the reaction mixture of step (1) to steam sparging, carbonation, air sparging or a combination thereof at a temperature of from about 100° C to about 250° C, (3) reacting the product of step (2) with an alkaline earth metal oxide or hydroxide in the presence of an alcohol and carbon dioxide at a temperature of from about 10° C to about 70° C and (4) subjecting the product of step (3) to steam sparging, carbonation, air sparging or a combination thereof.
Claim 2
Dependent Claim
210 words
A process for preparation of a metal alkylphenate sulfide which provides reduced corrosivity to metals comprising the steps of (1) reacting an alkylphenol sulfide with a minor amount of a basic material selected from the group consisting of an amine having the formula RNH 2 , RR'NH or RR'R"N wherein R, R' and R" are the same or different alkyl group of from 1 to about 20 carbon atoms, an alkylene polyamine having the formula H 2 N(C m H 2m NH) z --C m H 2m NH 2 wherein m is an integer of 2 or 3 and z is 0 or an integer of from 1 to 10 and a cyclic amine at a temperature of from about 100° C to about 250° C, (2) subjecting the reaction mixture of step (1) to steam sparging, carbonation, air sparging or a combination thereof at a temperature of from about 100° C to about 250° C, (3) reacting the product of step (2) with an alkaline earth metal oxide or hydroxide in the presence of an alcohol and carbon dioxide at a temperature of from about 10° C to about 70° C and (4) subjecting the product of step (3) to steam sparging, carbonation, air sparging or a combination thereof.
Claim 3
Dependent Claim
44 words
The process of claim 1 wherein said basic material of step (1) is an amine having the formula RNH 2 , RR'NH or RR'R"N wherein R, R' and R" are the same or different alkyl group of from 1 to about 20 carbon atoms.
Claim 4
Dependent Claim
54 words
The process of claim 1 wherein said basic material of step (1) is an alkylene polyamine having the formula H 2 N(C m H 2m NH) z --C m H 2m NH 2 wherein m is an integer of 2 or 3 and z is 0 or an integer of from 1 to 10.
Claim 5
Dependent Claim
19 words
The process of claim 3 wherein said alkylene polyamine is a diamine, a triamine, a tetramine or a pentamine.
Claim 6
Dependent Claim
12 words
The process of claim 4 wherein said alkylene polyamine is a diamine.
Claim 7
Dependent Claim
11 words
The process of claim 5 wherein said diamine is ethylene diamine.
Claim 8
Dependent Claim
16 words
The process of claim 1 wherein said basic material of step (1) is a cyclic amine.
Claim 9
Dependent Claim
14 words
The process of claim 7 wherein said cyclic amine is pyridine, piperazine or pyrimidine.
Claim 10
Dependent Claim
33 words
The process of claim 1 wherein said basic material of step (1) is present in step (1) in an amount of from 0.05 percent to 10 percent by weight of said alkylphenol sulfide.
Claim 11
Dependent Claim
35 words
The process of claim 9 wherein said basic material of step (1) is present in step (1) in an amount of from about 1 percent to about 5 percent by weight of said alkylphenol sulfide.
Claim 12
Dependent Claim
30 words
The process of claim 1 wherein said alkaline earth metal oxide or hydroxide of step (3) is calcium oxide or hydroxide, barium oxide or hydroxide or magnesium oxide or hydroxide.
Claim 13
Dependent Claim
21 words
The process of claim 11 wherein said alkaline earth metal oxide or hydroxide of step (3) is calcium oxide or hydroxide.
Claim 14
Dependent Claim
17 words
The process of claim 11 wherein said alcohol of step (3) contains 1 to 6 carbon atoms.
Claim 15
Dependent Claim
13 words
The process of claim 12 wherein said alcohol of step (3) is methanol.
Claim 16
Dependent Claim
37 words
The process of claim 1 wherein the carbon dioxide of step (3) is added within the range of from about 0.3 to about 1.0 mole of carbon dioxide per mole of alkaline earth metal oxide or hydroxide.
Claim 17
Dependent Claim
37 words
The process of claim 15 wherein the carbon dioxide of step (3) is added within the range of from about 0.4 to about 0.8 mole of carbon dioxide per mole of alkaline earth metal oxide or hydroxide.
Claim 18
Dependent Claim
36 words
The process of claim 16 wherein the carbon dioxide of step (3) is added within the range of from about 0.5 to about 0.55 mole of carbon dioxide per mole alkaline earth metal oxide or hydroxide.
Claim 19
Dependent Claim
10 words
The reaction product prepared by the process of claim 1.
Claim 20
Dependent Claim
37 words
The fluid organic composition comprising a major proportion of an organic lubricant, fuel or transmission fluid and a minor proportion sufficient to provide detergent, antioxidant or improved corrosion properties thereto of the reaction product of claim 18.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |