US4338288A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorbent for removing metals from fluids
Assignee: Mobil Oil AS
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Filing: 1981-02-03
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Granted: 1982-07-06
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Expires: 2001-02-03
Abstract
Abstract This invention provides a sorbent composition, manganese nodules with occluded sulfur, effective for removing metal contaminants from gases or liquids. It is effective for removing lead contaminant from gasoline and mercury from water or natural gas. It may be used in the chlor-alkali process for cleaning by-product hydrogen. The sorbent also may be used for recovering valuable metals, for example from mine seepage waters.
Inventors
- 👤 Louis D. Rollmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 17:35
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; B; B01; B01J; B01J20/00; B01J20/02; B01J20/30; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; C02; C02F; C02F1/00; C02F1/28; C02F1/281; C22; C22B; C22B3/00; C22B3/20; C22B3/22; C22B3/24; Y; Y02; Y02P; Y02P10/00; Y02P10/20; Y10; Y10S; Y10S210/00; Y10S210/902; Y10S210/911; Y10S210/912; Y10S210/914; Y10S423/00; Y10S423/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
85 words
A process for removing a metal from a fluid, said metal being one which forms a sulfide that has a solubility product constant of less than about 10 -20 at about 25° C., which comprises contacting the fluid under sorption conditions including a temperature of about 0° C. to about 120° C. with a particulate solid composition comprising manganese nodules and from 0.1 wt. % to about 60 wt. % of said nodules of added elemental sulfur, said added sulfur being occluded in said nodules.
Claim 2
Dependent Claim
85 words
A process for removing a metal from a fluid, said metal being one which forms a sulfide that has a solubility product constant of less than about 10 -20 at about 25° C., which comprises contacting the fluid under sorption conditions including a temperature of about 0° C. to about 120° C. with a particulate solid composition comprising manganese nodules and from 0.1 wt. % to about 60 wt. % of said nodules of added elemental sulfur, said added sulfur being occluded in said nodules.
Claim 3
Dependent Claim
25 words
The process described in claim 1 wherein said added, occluded sulfur constitutes from about 1 wt. % to about 33 wt. % of said nodules.
Claim 4
Dependent Claim
17 words
The process described in claim 1 wherein said metal is mercury and said fluid is a gas.
Claim 5
Dependent Claim
16 words
The process described in claim 2 wherein said fluid is air and said metal is mercury.
Claim 6
Dependent Claim
16 words
The process described in claim 2 wherein said fluid is hydrogen and said metal is mercury.
Claim 7
Dependent Claim
18 words
The process described in claim 2 wherein said metal is lead and said fluid is a hydrocarbon liquid.
Claim 8
Dependent Claim
12 words
The process described in claim 6 wherein said hydrocarbon liquid is gasoline.
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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) | 1985-07-05 | 1986-01-04 | 1986-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-07-05 | 1990-01-04 | 1990-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-07-05 | 1994-01-04 | 1994-07-06 | $7700.00 | Window Closed / Lapsed |