US4222897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sorbent for removing metals from fluids
Assignee: Mobil Oil AS
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Filing: 1978-09-14
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Granted: 1980-09-16
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Expires: 1998-09-14
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
2026-10-30 16:30
CPC Classifications
C; C01; C01B; C01B3/00; C01B3/50; C01B3/56; B; B01; B01J; B01J20/00; B01J20/02; B01J20/30; B01J20/3071; B01J20/3078; B01J20/32; B01J20/3202; B01J20/3204; B01J20/3231; B01J20/3234; B01J20/3236; B01J20/3291; B01J20/3293; 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; Y10S423/00; Y10S423/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
31 words
A particulate solid composition comprising manganese nodules and from 0.1 wt. % to about 60 wt. % of said nodules of added sulfur, said added sulfur being occluded in said nodules.
Claim 2
Dependent Claim
31 words
A particulate solid composition comprising manganese nodules and from 0.1 wt. % to about 60 wt. % of said nodules of added sulfur, said added sulfur being occluded in said nodules.
Claim 3
Dependent Claim
19 words
The composition described in claim 1 wherein the average particle size is from about 20 microns to 2.5 centimeters.
Claim 4
Dependent Claim
24 words
The composition described in claim 2 wherein said added sulfur constitutes from about 1 wt. % to about 33 wt. % of said nodules.
Claim 5
Dependent Claim
26 words
The composition described in claim 2 or claim 3 wherein said composition contains at least about 25 wt. % of said nodules with occluded added sulfur.
Claim 6
Dependent Claim
21 words
The composition described in claim 2 or claim 3 or claim 4 wherein said manganese nodules are water-washed Sturgeon Bay nodules.
Claim 7
Independent Claim
51 words
A method for preparing a sorbent for metals dispersed in fluids which comprises mixing manganese nodules with from 0.1 wt. % to about 60 wt. % of said nodules of elemental sulfur and heating the mixture to a temperture above about 100° C. for a time effective to form occluded sulfur.
Claim 8
Independent Claim
51 words
A method for preparing a sorbent for metals dispersed in fluids which comprises mixing manganese nodules with from 0.1 wt. % to about 60 wt. % of said nodules of elemental sulfur and heating the mixture to a temperture above about 100° C. for a time effective to form occluded sulfur.
Claim 9
Dependent Claim
26 words
The method described in claim 6 including the steps of sizing, washing and drying said manganese nodules prior to said step of mixing with elemental sulfur.
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) | 1983-09-16 | 1984-03-17 | 1984-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-16 | 1988-03-17 | 1988-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-16 | 1992-03-17 | 1992-09-16 | $7700.00 | Window Closed / Lapsed |