Patent US2849289A successfully refreshed from Google Patents.
US2849289A
Expired / Lapsed
US
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Process for the decomposition of titanium ore
Assignee: Bayer AG
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Filing: 1956-04-19
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Granted: 1958-08-26
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Expires: 1976-04-19
Abstract
No abstract record available.
Inventors
- 👤 Zirngibl Hans
- 👤 Heinze Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:01
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1236; C22B34/124; C22B34/125; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
124 words
A PROCESS OF DECOMPOSING OXIDIC TITANIUM ORES WITH EXCESS SULFURIC ACID WHICH CONSISTS IN THAT THE ORE TO BE DECOMPOSED HAD ADDED TO IT, IN ADDITION TO THE AMOUNT OF SULFURIC ACID WHICH IS STOICHIOMETRICALLY REQUIRED TO CONVERT THE TITANIUM AND ION CON,TENT INTO TITANYL SULFATE AND FERROUS SULFATE, AN EXCESS OF SULFURIC ACID HAVING A CONCENTRATION OF H2SO4 OF BETWEEN 45 AND 75% BY WEIGHT AMOUNTING TO AT LEAST ONE AND A HALF TIMES THE QUANTITY OF H2SO4 STOICHIOMETRICALLY REQUIRED TO CONVERT THE TITANIUM AND IRON CONTENT INTO TITANYL SULFATE AND FERROUS SULFATE, WHEREBY SAID SULFATES PRECIPITATE OUT, SAID DECOMPOSITION BEING EFFECTED AT A TEMPERATURE OF BETWEEN 130 AND 180* C., THE EXCESS OF SAID ACID BEING SEPARATED FROM SAID SULFATES AND REUSED.
Claim 2
Dependent Claim
124 words
A PROCESS OF DECOMPOSING OXIDIC TITANIUM ORES WITH EXCESS SULFURIC ACID WHICH CONSISTS IN THAT THE ORE TO BE DECOMPOSED HAD ADDED TO IT, IN ADDITION TO THE AMOUNT OF SULFURIC ACID WHICH IS STOICHIOMETRICALLY REQUIRED TO CONVERT THE TITANIUM AND ION CON,TENT INTO TITANYL SULFATE AND FERROUS SULFATE, AN EXCESS OF SULFURIC ACID HAVING A CONCENTRATION OF H2SO4 OF BETWEEN 45 AND 75% BY WEIGHT AMOUNTING TO AT LEAST ONE AND A HALF TIMES THE QUANTITY OF H2SO4 STOICHIOMETRICALLY REQUIRED TO CONVERT THE TITANIUM AND IRON CONTENT INTO TITANYL SULFATE AND FERROUS SULFATE, WHEREBY SAID SULFATES PRECIPITATE OUT, SAID DECOMPOSITION BEING EFFECTED AT A TEMPERATURE OF BETWEEN 130 AND 180* C., THE EXCESS OF SAID ACID BEING SEPARATED FROM SAID SULFATES AND REUSED.
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) | 1961-08-25 | 1962-02-24 | 1962-08-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-25 | 1966-02-24 | 1966-08-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-25 | 1970-02-24 | 1970-08-26 | $7700.00 | Window Closed / Lapsed |