Patent US3046106A successfully refreshed from Google Patents.
US3046106A
Expired / Lapsed
US
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Iron ore reduction with coke
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1960-06-22
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Granted: 1962-07-24
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Expires: 1980-06-22
Abstract
No abstract record available.
Inventors
- 👤 Charles E Hemminger
- 👤 Edwin R Gilliland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:00
CPC Classifications
C; C21; C21B; C21B13/00; C21B13/0086; C21B13/08; Y; Y02; Y02P; Y02P10/00; Y02P10/10; Y02P10/134
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
150 words
IN A PROCESS OF REDUCING IRON ORE FINES WITH COKE MOVED AS A SOLIDS BED CONTINUOUSLY ALONG A ROTATING CYLINDRICAL WALL WHICH RECEIVES HEAT FROMA A STREAM OF GASES UNDERGOING COMBUSTION SUPERADJACENT TO THE BED FLOWING COUNTER-CURRENTLY TO THE SOLIDS BED THAT PASSES FROM A PREHEATING ZONE THEN THROUGH A REDUCING ZONE AT IRON OXIDE REDUCING TEMPERATURES, THE IMPROVEMENT WHICH COMPRISES MAINTAINING A TOP LAYER OF COKE PELLETS ABOVE FINER ORE PARTICLES IN SAID SOLIDS BED PASSING THROUGH THE REDUCING ZONE, PASSING THE THUS LAYERED BED FROM THE REDUCING ZONE INTO A COKING ZONE, SPRAYING HEAVY HYDROCARBON LIQUID OIL OVER SAID COKE PELLETS OF THE TOP LAYER TO FORM A COKE DEPOSIT ON SAID PELLETS AND EVOLVE HOT COMBUSTIBLE GAS CONTAINING H2 AND HYDROCARBON GASES, REMOVING REDUCED ORE FINES AND COKE THAT BECOM COOLED AS THEY ARE MOVED THROUGH THE COKING ZONE, DISCHARGING THE COMBUSTIBLE GAS CONTAINING HYDROGEN AND HYDROCARBONS
Claim 2
Dependent Claim
150 words
IN A PROCESS OF REDUCING IRON ORE FINES WITH COKE MOVED AS A SOLIDS BED CONTINUOUSLY ALONG A ROTATING CYLINDRICAL WALL WHICH RECEIVES HEAT FROMA A STREAM OF GASES UNDERGOING COMBUSTION SUPERADJACENT TO THE BED FLOWING COUNTER-CURRENTLY TO THE SOLIDS BED THAT PASSES FROM A PREHEATING ZONE THEN THROUGH A REDUCING ZONE AT IRON OXIDE REDUCING TEMPERATURES, THE IMPROVEMENT WHICH COMPRISES MAINTAINING A TOP LAYER OF COKE PELLETS ABOVE FINER ORE PARTICLES IN SAID SOLIDS BED PASSING THROUGH THE REDUCING ZONE, PASSING THE THUS LAYERED BED FROM THE REDUCING ZONE INTO A COKING ZONE, SPRAYING HEAVY HYDROCARBON LIQUID OIL OVER SAID COKE PELLETS OF THE TOP LAYER TO FORM A COKE DEPOSIT ON SAID PELLETS AND EVOLVE HOT COMBUSTIBLE GAS CONTAINING H2 AND HYDROCARBON GASES, REMOVING REDUCED ORE FINES AND COKE THAT BECOM COOLED AS THEY ARE MOVED THROUGH THE COKING ZONE, DISCHARGING THE COMBUSTIBLE GAS CONTAINING HYDROGEN AND HYDROCARBONS
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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) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |