Patent US4012315A successfully refreshed from Google Patents.
US4012315A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trap to remove metals utilizing a sulfur modified substrate and electrophoresis
Assignee: Mobil Oil AS
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Filing: 1975-10-31
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Granted: 1977-03-15
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Expires: 1995-10-31
Abstract
Abstract Sulfur is deposited on a solid substrate. Metal compounds containing sulfur reaction products produced when hydrocarbon streams contaminated with the metals are contacted with the sulfur modified substrate are removed by electrophoresis.
Inventors
- 👤 Israel J. Heilweil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:42
CPC Classifications
C; C10; C10G; C10G29/00; C10G29/06; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
126 words
A method for removing metal contaminants from substantially hydrocarbon streams comprising contacting said substantially hydrocarbon streams with two successive bed sections; said first bed section containing a solid substrate selected from the group consisting of silicas, aluminosilicates, clays, metal oxides, metal sulfides, macroreticular resins, high surface area resins and polymers containing polar groups such as OH, N, SO 3 = and COO - , upon which sulfur particles ranging in size up to an effective diameter of about 0.1 microns are deposited; and said second bed section containing particles comprising at least two of aluminum, cobalt, iron and carbon, whereby sulfur reaction products of said metal contaminants are produced in said first bed section and are plated out on the particles in said second bed section.
Claim 2
Independent Claim
126 words
A method for removing metal contaminants from substantially hydrocarbon streams comprising contacting said substantially hydrocarbon streams with two successive bed sections; said first bed section containing a solid substrate selected from the group consisting of silicas, aluminosilicates, clays, metal oxides, metal sulfides, macroreticular resins, high surface area resins and polymers containing polar groups such as OH, N, SO 3 = and COO - , upon which sulfur particles ranging in size up to an effective diameter of about 0.1 microns are deposited; and said second bed section containing particles comprising at least two of aluminum, cobalt, iron and carbon, whereby sulfur reaction products of said metal contaminants are produced in said first bed section and are plated out on the particles in said second bed section.
Claim 3
Dependent Claim
22 words
A method for removing metal contaminants from liquid streams as claimed in claim 1 wherein said solid substrate is a macroreticular resin.
Claim 4
Dependent Claim
39 words
A method for removing metal contaminants from liquid streams as claimed in claim 1 wherein said particles of said second bed section are formed by electroless deposition of one of said aluminum, cobalt, iron or carbon on the other.
Claim 5
Dependent Claim
20 words
A method for removing metal contaminants from liquid streams as claimed in claim 3 wherein iron is deposited on carbon.
Claim 6
Dependent Claim
30 words
A method of removing metal contaminants from liquid streams as claimed in claim 1 wherein each of said aluminum, cobalt, iron or carbon is in a separate and distinct particle.
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) | 1980-03-14 | 1980-09-13 | 1981-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-03-14 | 1984-09-13 | 1985-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-03-14 | 1988-09-13 | 1989-03-15 | $7700.00 | Window Closed / Lapsed |