US3043655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of recovering titanium compounds
Assignee: Champion Papers Inc
•
Filing: 1960-03-29
•
Granted: 1962-07-10
•
Expires: 1980-03-29
Abstract
No abstract record available.
Inventors
- 👤 Robert P Green
- 👤 Judd Harold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:41
CPC Classifications
C; C22; C22B; C22B34/00; C22B34/10; C22B34/12; C22B34/1204; Y; Y10; Y10S; Y10S423/00; Y10S423/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
170 words
THE METHOD OF PRODUCING TITANIUM TETRACHLORIDE AS AN ADJUNCT TO A PULP-MAKING OPERATION WHEREIN SPENT PULP DIGESTION LIQUOR CONTAINING ALKALI SULFUR COMPOUNDS IS INTRODUCED INTO A SMELTER FOR RECOVERY OF THE CAUSTIC CHEMICAL CONTENT THEREOF, WHICH METHOD COMPRISES CHARGING AN IRON-TITANIUM ORE INTO SAID SMELTER ALONG WITH SAID SPENT DIGESTION LIQUOR THEREBY SIMULTANEOUSLY TO REMOVE WATER FROM SAID SPENT LIQUOR, BURN OFF THE ORGANIC CONTENTS THEREOF AND EXPOSE SAID ORE TO THE HEAT AND MOLTEN CAUSTIC CHEMICALS PREVAILING WITHIN SID SMELTER, AND THEREBY PRODUCING A MIXTURE OF MOLTENM CAUSTIC CHEMICAL AND MODIFIED TITANIUM ORE, THE TOTAL QUANTITY OF ELEMENTAL AND COMBINED SULFUR ON SAID LIQUOR BEING AT LEAST EQUAL TO THAT THEORETICALLY REQUIRED TO REACT WITH THE IRON PRESENT IN THE ORE TO PRODUCE FERROUS FULFIDE, ADDING SAID MIXTURE TO WATER AND DISSOLVING WATER SOLUBLE INORGANIC CHEMICALS OF SAID MIXTURE IN SAID WATER, SEPARATING FROM THE WATER SOLUTIN OF CAUSTIC CHEMICALS A RESIDUE OF SUBSTANCES INSOLUBLE IN SAID WATER, INCLUDING THE MODIFIED TITANIUM ORE, ACIDFYING SAID RESIDUE WITH SUFFICIENT HYDRO-
Claim 2
Independent Claim
170 words
THE METHOD OF PRODUCING TITANIUM TETRACHLORIDE AS AN ADJUNCT TO A PULP-MAKING OPERATION WHEREIN SPENT PULP DIGESTION LIQUOR CONTAINING ALKALI SULFUR COMPOUNDS IS INTRODUCED INTO A SMELTER FOR RECOVERY OF THE CAUSTIC CHEMICAL CONTENT THEREOF, WHICH METHOD COMPRISES CHARGING AN IRON-TITANIUM ORE INTO SAID SMELTER ALONG WITH SAID SPENT DIGESTION LIQUOR THEREBY SIMULTANEOUSLY TO REMOVE WATER FROM SAID SPENT LIQUOR, BURN OFF THE ORGANIC CONTENTS THEREOF AND EXPOSE SAID ORE TO THE HEAT AND MOLTEN CAUSTIC CHEMICALS PREVAILING WITHIN SID SMELTER, AND THEREBY PRODUCING A MIXTURE OF MOLTENM CAUSTIC CHEMICAL AND MODIFIED TITANIUM ORE, THE TOTAL QUANTITY OF ELEMENTAL AND COMBINED SULFUR ON SAID LIQUOR BEING AT LEAST EQUAL TO THAT THEORETICALLY REQUIRED TO REACT WITH THE IRON PRESENT IN THE ORE TO PRODUCE FERROUS FULFIDE, ADDING SAID MIXTURE TO WATER AND DISSOLVING WATER SOLUBLE INORGANIC CHEMICALS OF SAID MIXTURE IN SAID WATER, SEPARATING FROM THE WATER SOLUTIN OF CAUSTIC CHEMICALS A RESIDUE OF SUBSTANCES INSOLUBLE IN SAID WATER, INCLUDING THE MODIFIED TITANIUM ORE, ACIDFYING SAID RESIDUE WITH SUFFICIENT HYDRO-
References Cited (Backward Citations)
US1026797A
Cited
US1489417A
Cited
US1902203A
Cited
US2109917A
Cited
US2183365A
Cited
US2406577A
Cited
US2804375A
Cited
US2858193A
Cited
US2770529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-09 | 1966-01-08 | 1966-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-09 | 1970-01-08 | 1970-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-09 | 1974-01-08 | 1974-07-10 | $7700.00 | Window Closed / Lapsed |