Patent US4048061A successfully refreshed from Google Patents.
US4048061A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for removal of metal compounds from hydrocarbons
Assignee: Individual
•
Filing: 1976-04-05
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Granted: 1977-09-13
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Expires: 1996-04-05
Abstract
Abstract A process is disclosed for reducing the level of compounds of certain metals from hydrocarbon liquids by contacting said metal compound-bearing hydrocarbon with acidified active carbon. The process is particularly useful for preferentially removing organo lead compounds from gasolines at mild conditions, with only small removal of organo manganese antiknock compounds such as methyl cyclopentadienyl manganese tricarbonyl which may be present.
Inventors
- 👤 George C. Blytas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:38
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
76 words
A process for the reducing of levels of compounds of metals of Groups Ib, IVa, Vb, VIB and VIII in light hydrocarbon liquids which comprises contacting said liquids with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter greater than 0.9 nm, which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid and substantially separated from said oxidizing fluid.
Claim 2
Dependent Claim
76 words
A process for the reducing of levels of compounds of metals of Groups Ib, IVa, Vb, VIB and VIII in light hydrocarbon liquids which comprises contacting said liquids with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter greater than 0.9 nm, which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid and substantially separated from said oxidizing fluid.
Claim 3
Dependent Claim
31 words
A process as in claim 1 wherein the sorbent has a majority of its pore volume in pores having a diameter in the range from about 1 to about 10 nm.
Claim 4
Dependent Claim
15 words
A process as in claim 1 wherein the metal compound is an organo lead compound.
Claim 5
Dependent Claim
15 words
A process as in claim 1 wherein the metal compound is an organo copper compound.
Claim 6
Dependent Claim
15 words
A process as in claim 1 wherein the metal compound is an organo chromium compound.
Claim 7
Dependent Claim
20 words
A process as in claim 1 wherein the metal compound is an organo metallic compound of a Group VIII metal.
Claim 8
Dependent Claim
29 words
A process as in claim 1 wherein the temperature for contacting of the hydrocarbon liquids with the sorbent is in the range from about 0° to about 200° C.
Claim 9
Dependent Claim
77 words
A process for selectively reducing the level of organoalkyl lead compounds present in gasoline with comparatively small reduction of organo manganese compounds present in the gasoline which process comprises contacting the gasoline with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter in the range from 1 to 10 nm which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid.
Claim 10
Dependent Claim
77 words
A process for selectively reducing the level of organoalkyl lead compounds present in gasoline with comparatively small reduction of organo manganese compounds present in the gasoline which process comprises contacting the gasoline with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter in the range from 1 to 10 nm which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid.
Claim 11
Dependent Claim
72 words
A process for preferentially removing organo lead compounds from hydrocarbon liquids with only small removal of organo manganese compounds which comprises contacting said liquids with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter greater than 0.9 nm, which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid and substantially separated from said oxidizing fluid.
Claim 12
Dependent Claim
72 words
A process for preferentially removing organo lead compounds from hydrocarbon liquids with only small removal of organo manganese compounds which comprises contacting said liquids with a sorbent consisting essentially of particulate active carbon having at least a majority of its pore volume in pores having a diameter greater than 0.9 nm, which sorbent has previously been oxidized by contact with a highly acidic oxidizing fluid and substantially separated from said oxidizing fluid.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-09-12 | 1981-03-14 | 1981-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-09-12 | 1985-03-14 | 1985-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-09-12 | 1989-03-14 | 1989-09-13 | $7700.00 | Window Closed / Lapsed |