Patent US4175054A successfully refreshed from Google Patents.
US4175054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Use of hydrocarbon polymers in demulsification
Assignee: Baker Petrolite LLC
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Filing: 1976-11-11
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Granted: 1979-11-20
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Expires: 1996-11-11
Abstract
Abstract This invention relates to the use of hydrocarbon polymers or copolymers in conjunction with demulsifiers in demulsification. The use of said hydrocarbon polymers-demulsifier combination is more effective in demulsification than is achieved by the use of the demulsifier alone. The process is particularly effective in desalting oils.
Inventors
- 👤 William S. Tait
- 👤 Roy W. Greenlee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:14
CPC Classifications
B; B01; B01D; B01D17/00; B01D17/02; B01D17/04; B01D17/047; C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
34 words
A demulsifier composition comprising 1 to 20,000 parts of an oxyalkylated alkyl phenol-aldehyde resin and 5 to 100,000 parts of a hydrocarbon polymer or copolymer having a molecular weight of from 10,000 to 50,000.
Claim 2
Dependent Claim
34 words
A demulsifier composition comprising 1 to 20,000 parts of an oxyalkylated alkyl phenol-aldehyde resin and 5 to 100,000 parts of a hydrocarbon polymer or copolymer having a molecular weight of from 10,000 to 50,000.
Claim 3
Dependent Claim
15 words
The composition of claim 1 where the oxyalkylated alkyl phenol-aldehyde resin is oxyethylated butyl/nonyl phenol-formaldehyde.
Claim 4
Dependent Claim
12 words
The composition of claim 2 where the hydrocarbon polymer is a polyalkylene.
Claim 5
Dependent Claim
14 words
The composition of claim 3 where the polyalkylene is polyethylene, polypropylene, poly(ethylene-propylene), or polyisobutylene.
Claim 6
Dependent Claim
44 words
A process of demulsification which comprises treating an emulsion with a demulsification composition comprising 1 to 20,000 parts of an oxyalkylated alkyl phenol-aldehyde resin and 5 to 100,000 parts of a hydrocarbon polymer or copolymer having a molecular weight of from 10,000 to 50,000.
Claim 7
Dependent Claim
44 words
A process of demulsification which comprises treating an emulsion with a demulsification composition comprising 1 to 20,000 parts of an oxyalkylated alkyl phenol-aldehyde resin and 5 to 100,000 parts of a hydrocarbon polymer or copolymer having a molecular weight of from 10,000 to 50,000.
Claim 8
Dependent Claim
15 words
A process of demulsification which comprises treating an emulsion with the composition of claim 2.
Claim 9
Dependent Claim
15 words
A process of demulsification which comprises treating an emulsion with the composition of claim 3.
Claim 10
Dependent Claim
15 words
A process of demulsification which comprises treating an emulsion with the composition of claim 4.
Claim 11
Dependent Claim
45 words
The process of claim 5 where the oxyalkylated alkyl phenolaldehyde resin is present in a concentration of 20 to 500 ppm of oil in the emulsion and the hydrocarbon polymer is present in a concentration of 1,000 to 5,000 ppm of oil in the emulsion.
Claim 12
Dependent Claim
53 words
The process of claim 5 where the phenol-aldehyde resin is oxyethylated butyl/nonyl phenol-formaldehyde present in a concentration of 800 ppm of oil in the emulsion and the hydrocarbon copolymer is an ethylene-propylene copolymer having a molecular weight of 164,000 and is present in a concentration of 1,000 ppm of oil in the emulsion.
Claim 13
Dependent Claim
53 words
The process of claim 5 where the phenol-aldehyde resin is oxyethylated butyl/nonyl phenol aldehyde resin present in a concentration of 800 ppm of oil in the emulsion and the hydrocarbon polymer is polyisobutylene having a molecular weight of 50,000 and is present in a concentration of 1,000 ppm of oil in the emulsion.
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) | 1982-11-19 | 1983-05-21 | 1983-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-11-19 | 1987-05-21 | 1987-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-11-19 | 1991-05-21 | 1991-11-20 | $7700.00 | Window Closed / Lapsed |