US2805919A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for chlorinating titaniumbearing materials
Assignee: Individual
•
Filing: 1954-11-15
•
Granted: 1957-09-10
•
Expires: 1974-11-15
Abstract
No abstract record available.
Inventors
- 👤 Ishizuka Hiroshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:08
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1218; C22B34/1222; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
CONTINUOUS PROCESS FOR CHLORINATING TITANIFEROUS MATERIAL CONTAINING METAL COMPOUND IMPURITIES TO OBTAIN TITANIUM TETRACHLORIDE, WHICH COMPRISES REACTING SAID TITANIFEROUS MATERIAL WITH A GASEOUS CHLORINATING AGENT AT AN ELEVATED TEMPERATURE IN A CHLORINATING ZONE OF A FURNACE IN THE PRESENCE OF A CARBONACEOUS REDUCING AGENT TO VOLATILIZE TITANIUM IN THE FORM OF CHLORIDE AND REACTING THE RESIDUE FROM SAID CHLORINATION COMPRISING THE RESULTING NON-VOLATILE METAL CHLORIDES WITH GASEOUS OXYGEN INTRODUCED INTO A PORTION OF SAID FURNACE BELOW THE CHLORINATING ZONE IN SUFFICIENT AMOUNT TO CONVERT SAID NON-VOLATILE METAL CHLORIDES TO THE CORRESPONDING METAL OXIDES AND THEREBY TO LIBERATE CHLORINE GAS WHICH THEREUPON RISES TO THE CHLORINATING ZONE AND PARTICIPATES IN THE CHLORINATION OPERATION OF THE TITANIFEROUS MATERIAL.
Claim 2
Dependent Claim
116 words
CONTINUOUS PROCESS FOR CHLORINATING TITANIFEROUS MATERIAL CONTAINING METAL COMPOUND IMPURITIES TO OBTAIN TITANIUM TETRACHLORIDE, WHICH COMPRISES REACTING SAID TITANIFEROUS MATERIAL WITH A GASEOUS CHLORINATING AGENT AT AN ELEVATED TEMPERATURE IN A CHLORINATING ZONE OF A FURNACE IN THE PRESENCE OF A CARBONACEOUS REDUCING AGENT TO VOLATILIZE TITANIUM IN THE FORM OF CHLORIDE AND REACTING THE RESIDUE FROM SAID CHLORINATION COMPRISING THE RESULTING NON-VOLATILE METAL CHLORIDES WITH GASEOUS OXYGEN INTRODUCED INTO A PORTION OF SAID FURNACE BELOW THE CHLORINATING ZONE IN SUFFICIENT AMOUNT TO CONVERT SAID NON-VOLATILE METAL CHLORIDES TO THE CORRESPONDING METAL OXIDES AND THEREBY TO LIBERATE CHLORINE GAS WHICH THEREUPON RISES TO THE CHLORINATING ZONE AND PARTICIPATES IN THE CHLORINATION OPERATION OF THE TITANIFEROUS MATERIAL.
References Cited (Backward Citations)
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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) | 1960-09-09 | 1961-03-11 | 1961-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-09 | 1965-03-11 | 1965-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-09 | 1969-03-11 | 1969-09-10 | $7700.00 | Window Closed / Lapsed |