US2747987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for separating iron values from titaniferous iron material
Assignee: NL Industries Inc
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Filing: 1952-02-27
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Granted: 1956-05-29
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Expires: 1972-02-27
Abstract
No abstract record available.
Inventors
- 👤 John M Daubenspeck
- 👤 Robert S Mcneil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:05
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1204; C22B34/1209; C22B1/00; C22B1/02; C22B1/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD FOR SEPARATING IRON FORM A TITANIFEROUS OXIDIC IRON MATERIAL BY SELECTIVE CHLORINATION WHICH COMPRISES SMELTING SAID MATERIAL BY HEATING SAID MATERIAL TO A TEMPERATURE OF AT LEAST ABOUT 1500* C. TO PROVIDE IN SAID TITANIFEROUS IRON MATERIAL REDUCED TITANIUM VALUES IN AN AMOUNT SUFFICIENT TO ACCEPT SUBSTANTIALLY ALL OF THE OXYGEN OF THE IRON VALUES IN SAID MATERIAL AND REACTING SAID MATERIAL WITH CHLORINE TO CONVERT SUBSTANITALLY ALL OF THE IRON VALUES TO VOLATILE FERRIC CHLORIDE AND SEPARATING THE LATTER FROM THE RESIDUAL TITANIUM VALUES.
Claim 2
Independent Claim
87 words
A METHOD FOR SEPARATING IRON FORM A TITANIFEROUS OXIDIC IRON MATERIAL BY SELECTIVE CHLORINATION WHICH COMPRISES SMELTING SAID MATERIAL BY HEATING SAID MATERIAL TO A TEMPERATURE OF AT LEAST ABOUT 1500* C. TO PROVIDE IN SAID TITANIFEROUS IRON MATERIAL REDUCED TITANIUM VALUES IN AN AMOUNT SUFFICIENT TO ACCEPT SUBSTANTIALLY ALL OF THE OXYGEN OF THE IRON VALUES IN SAID MATERIAL AND REACTING SAID MATERIAL WITH CHLORINE TO CONVERT SUBSTANITALLY ALL OF THE IRON VALUES TO VOLATILE FERRIC CHLORIDE AND SEPARATING THE LATTER FROM THE RESIDUAL TITANIUM VALUES.
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) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |