US3625857A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil spill dispersant and method for employing same
Assignee: ConocoPhillips Co
•
Filing: 1968-11-04
•
Granted: 1971-12-07
•
Expires: 1988-11-04
Abstract
Abstract A composition for removing oil spills and a method for employing same is provided wherein the composition comprises from about 80 to 0 weight percent of an anionic surfactant or pine oil and from about 20 to 100 weight percent of a nonionic compound which contains from about 2 to 4 (CH2CH20) units.
Inventors
- 👤 Dean R Weimer
- 👤 James A Wingrave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:33
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/68; C02F1/682; C09; C09K; C09K23/00; C09K23/017; C09K23/12; C09K23/14; C11; C11D; C11D1/00; C11D1/02; C11D1/34; C11D1/345; C11D1/66; C11D1/83; C11D3/00; C11D3/43; Y; Y10; Y10S; Y10S210/00; Y10S210/918; Y10S210/922; Y10S210/925; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
52 words
A method according to claim 1 for removing oil spills where the oil has an API gravity of at least 22 wherein said anionic surfactant is present in the range of about 5- 15 weight percent, and said nonionic compound is present in the range of about 95 to 85 weight percent.
Claim 2
Dependent Claim
53 words
an alkylphenoxy polyethylene oxide phosphate ester having the general formula R2- phi - 0(CH2CH2O)nPO3M2'' where n is an integer of from about 6 to 10, R2 is an alkyl radical having about eight to 12 carbon atoms, and M'' is a cation selected from the group consisting of hydrogen, alkali metal, and ammonium;
Claim 3
Dependent Claim
52 words
an alkylphenoxy polyethylene oxide phosphate ester having the general formula R2- phi -O(CH2CH2O)nPO3M2'' where n is an integer of from about 6 to 10, R2 is an alkyl radical having about eight to 12 carbon atoms, and M'' is a cation selected from the group consisting of hydrogen, alkali metal, and ammonium;
Claim 4
Dependent Claim
37 words
an alkyl sulfonate having the general formula R3SO3M'''' where R3 is an alkyl radical having from about 14 to 20 carbon atoms and M'''' is a cation selected from the group consisting of alkali metals and ammonium;
Claim 5
Dependent Claim
37 words
an alkyl sulfonate having the general formula R3SO3M'''' where R3 is an alkyl radical having from about 14 to 20 carbon atoms and M'''' is a cation selected from the group consisting of alkali metals and ammonium;
Claim 6
Dependent Claim
37 words
A method according to claim 2 wherein said alkyl radical of said nonionic compound contains from about 12 to 14 carbon atoms and said integer has an average value within the range of about 2.5 to 3.0.
Claim 7
Dependent Claim
39 words
an alkyl aryl sulfonate having the general formula R4 phi SO3M'''''' where R4 is an alkyl radical having about 14 to 20 carbon atoms and M'''''' is a cation selected from the group consisting of alkali metals and ammonium;
Claim 8
Dependent Claim
59 words
The method according to claim 3 wherein said anionic surfactant is present in the amount of about 10 weight percent and is a sodium salt derivative of an alkyl aryl sulfonate where the alkyl radical of said alkyl aryl sulfonate contains about 18 carbon atoms and said nonionic compound is present in the amount of about 90 weight percent.
Claim 9
Dependent Claim
39 words
an alkyl aryl sulfonate having the general formula R4 phi SO3M'''''' where R4 is an alkyl radical having about 14 to 20 carbon atoms and M'''''' is a cation selected from the group consisting of alkali metals and ammonium;
Claim 10
Dependent Claim
46 words
a sulfate having the general formula R5O(CH2CH2O)nSO3M'''''''' where R5 is an alkyl radical having from about 14 to 20 carbon atoms, n is an integer of from about 0 to 6, and M'''''''' is a cation selected from the group consisting of alkali metal and ammonium;
Claim 11
Dependent Claim
74 words
a sulfate having the general formula R5O(CH2CH2O)nSO3M'''''''' where R5 is an alkyl radical having from about 14 to 20 carbon atoms, n is an integer of from about 0 to 6, and M'''''''' is a cation selected from the group consisting of alkali metal and ammonium; b. said nonionic component is present in the range of about 30 to 20 weight percent; and c. which includes at least 20 weight percent petroleum distillate diluent.
Claim 12
Dependent Claim
39 words
A method according to claim 3 wherein the composition includes from about 10 to 40 weight percent of a hydrocarbon diluent and about 90 to 60 weight percent of a blend of said anionic surfactant and said nonionic compound.
Claim 13
Dependent Claim
34 words
The method according to claim 4 wherein said hydrocarbon diluent is selected from the group consisting of paraffins having six to 12 carbon atoms, alcohols having one to eight carbon atoms and petroleum distillates.
Claim 14
Dependent Claim
58 words
a water-soluble salt of an alkene sulfonate having from about 10 to 24 carbon atoms; and b. from about 85 to 95 weight percent of a nonionic compound having the general formula R6O(CH2CH2O)nH in which R6 is an alkyl radical having from about 10 to 20 carbon atoms and n iS an integer of from about 2- 4.
Claim 15
Dependent Claim
12 words
The method according to claim 6 wherein said diluent is isopropyl alcohol.
Claim 16
Dependent Claim
51 words
A method according to claim 1 for removing oil spills from a body of water where the oils have an API gravity of 22 or less wherein a. said anionic surfactant is present within the range of about 40 to 60 weight percent and is selected from the group consisting of:
Claim 17
Dependent Claim
33 words
The method according to claim 8 wherein said diluent is kerosene and said composition consists of about 20 weight percent kerosene, 50 weight percent anionic surfactant, and about 30 weight percent nonionic component.
Claim 18
Dependent Claim
65 words
The method according to claim 9 wherein said anionic surfactant is a sodium salt derivative of an aLkyl aryl sulfonate where the alkyl radical of said alkyl aryl sulfonate contains about 18 carbon atoms and said alkyl radical of said nonionic compound contains from about 12 to 14 carbon atoms and said integer has an average value within the range of about 2.5 and 3.0.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |