US2592598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for obtaining chlorine and chromium containing materials
Assignee: Diamond Shamrock Corp
•
Filing: 1949-04-07
•
Granted: 1952-04-15
•
Expires: 1969-04-07
Abstract
No abstract record available.
Inventors
- 👤 Tom S Perrin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:10
CPC Classifications
C; C01; C01G; C01G37/00; C01G37/02; C01P; C01P2006/00; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
THE INTGEGRATED CONTINUOUS METHOD FOR PRODUCING CHLORINE, OXYGEN, AND CHROMIUM COMPOUNDS, WHICH INCLUDES THE STEPS OF CONTINUOUSLY MIXING SULFURIC ACID AND ALKALI METAL BICHROMATE, HEATING SAID MIXTURE TO A TEMPERATURE WITHIN THE RANGE OF 120* TO 160* C., PASSING HYDROGEN CHLORIDE IN CONTACT WITH SAID MIXTURE TO FORM A SECOND MIXTURE COMPRISING CHLORINE, CHROMYL CHLORIDE, AND OXYGEN, HEATING SAID SECOND MIXTURE TO THE DECOMPOSITION TEMPERATURE OF CHROMYL CHLORIDE TO DECOMPOSE SAID CHROMYL CHLORIDE TO SOLID CHROMIUM OXIDE, GASEOUS OXYGEN, AND CHLORINE, AND CONTINUOUSLY SEPARATELY RECOVERING CHLORINE,
Claim 2
Dependent Claim
86 words
THE INTGEGRATED CONTINUOUS METHOD FOR PRODUCING CHLORINE, OXYGEN, AND CHROMIUM COMPOUNDS, WHICH INCLUDES THE STEPS OF CONTINUOUSLY MIXING SULFURIC ACID AND ALKALI METAL BICHROMATE, HEATING SAID MIXTURE TO A TEMPERATURE WITHIN THE RANGE OF 120* TO 160* C., PASSING HYDROGEN CHLORIDE IN CONTACT WITH SAID MIXTURE TO FORM A SECOND MIXTURE COMPRISING CHLORINE, CHROMYL CHLORIDE, AND OXYGEN, HEATING SAID SECOND MIXTURE TO THE DECOMPOSITION TEMPERATURE OF CHROMYL CHLORIDE TO DECOMPOSE SAID CHROMYL CHLORIDE TO SOLID CHROMIUM OXIDE, GASEOUS OXYGEN, AND CHLORINE, AND CONTINUOUSLY SEPARATELY RECOVERING CHLORINE,
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-15 | 1955-10-15 | 1956-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-15 | 1959-10-15 | 1960-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-15 | 1963-10-15 | 1964-04-15 | $7700.00 | Window Closed / Lapsed |