US2673797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of preventing clogging of the hydrogen inlet to a reducing zone in the reduction of ferrous chloride vapor by hydrogen
Assignee: Republic Steel Corp
•
Filing: 1952-01-17
•
Granted: 1954-03-30
•
Expires: 1972-01-17
Abstract
No abstract record available.
Inventors
- 👤 Irving P Whitehouse
- 👤 Edward A Beidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:00
CPC Classifications
C; C21; C21B; C21B15/00; C21B15/006; B; B22; B22F; B22F9/00; B22F9/16; B22F9/18; B22F9/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
145 words
THE REDUCTION OF FERROUS CHLORIDE WITH HYDROGEN IN A REDUCING ZONE AT A RELATIVELY HIGH TEMPERATURE TO PRODUCE IRON AND GASEOUS HYDROGEN CHLORIDE, WHEREIN GASEOUS FERROUS CHLORIDE AND A GAS CONTAINING HYDROGEN ARE SEPARATELY INTRODUCED INTO A REDUCING ZONE, THE METHOD OF PREVENTING THE CLOGGING OF THE INLET INTO SAID ZONE FOR THE HYDROGEN-CONTAINING GAS BY ADHERENT SOLID DEPOSTIS, WHICH COMPRISES THE STEPS OF INTRODUCING SAID HYDROGEN-CONTAINING GAS INTO SAID ZONE AT A TEMPERATURE SUCH THAT THE INDEX TEMPERATURE (SAID INDEX TEMPERATURE BEING THAT WHICH IS SENSED BY A THERMOCOUPLE LOCATED AT A POINT INSIDE OF AND ABOUT 1/8 INCH FROM THE END OF A TUBE OF GOOD HEAT CONDUCTING MATERIAL, WITH SAID TUBE EXTENDING ABOUT 1/4 INCH INTO SAID REDUCING ZONE) IS NOT OVER ABOUT 1000* F., AND MAINTAINING THE AVERAGE TEMPERATURE OF THE MATERIALS IN SAID REDUCING ZONE AT LEAST ABOUT 1250* F.
Claim 2
Dependent Claim
145 words
THE REDUCTION OF FERROUS CHLORIDE WITH HYDROGEN IN A REDUCING ZONE AT A RELATIVELY HIGH TEMPERATURE TO PRODUCE IRON AND GASEOUS HYDROGEN CHLORIDE, WHEREIN GASEOUS FERROUS CHLORIDE AND A GAS CONTAINING HYDROGEN ARE SEPARATELY INTRODUCED INTO A REDUCING ZONE, THE METHOD OF PREVENTING THE CLOGGING OF THE INLET INTO SAID ZONE FOR THE HYDROGEN-CONTAINING GAS BY ADHERENT SOLID DEPOSTIS, WHICH COMPRISES THE STEPS OF INTRODUCING SAID HYDROGEN-CONTAINING GAS INTO SAID ZONE AT A TEMPERATURE SUCH THAT THE INDEX TEMPERATURE (SAID INDEX TEMPERATURE BEING THAT WHICH IS SENSED BY A THERMOCOUPLE LOCATED AT A POINT INSIDE OF AND ABOUT 1/8 INCH FROM THE END OF A TUBE OF GOOD HEAT CONDUCTING MATERIAL, WITH SAID TUBE EXTENDING ABOUT 1/4 INCH INTO SAID REDUCING ZONE) IS NOT OVER ABOUT 1000* F., AND MAINTAINING THE AVERAGE TEMPERATURE OF THE MATERIALS IN SAID REDUCING ZONE AT LEAST ABOUT 1250* F.
References Cited (Backward Citations)
US2418148A
Cited
US2596072A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-29 | 1957-09-28 | 1958-03-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-29 | 1961-09-28 | 1962-03-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-29 | 1965-09-28 | 1966-03-30 | $7700.00 | Window Closed / Lapsed |