US2796424A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation process by adsorption
Assignee: Individual
•
Filing: 1954-03-04
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Granted: 1957-06-18
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Expires: 1974-03-04
Abstract
No abstract record available.
Inventors
- 👤 Wallace W Schulz
- 👤 Jr Robert A Watts
- 👤 Moore Robert Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:38
CPC Classifications
C; C01; C01G; C01G55/00; C01G55/001; C01G25/00; C01G25/003; C22; C22B; C22B3/00; C22B3/20; C22B3/22; C22B3/24; C22B3/26; C22B3/34; C22B34/00; C22B34/20; C22B34/24; C22B60/00; C22B60/02; C22B60/0204; C22B60/0217; C22B60/0252; C22B60/026; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A METHOD OF SIMULTANEOUSLY SEPARATING RUTHENIUM VALUES AND AT LEAST ONE OF THE VALUES SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM VALUES SELECTED FROM THE FROM URANIUM VALUES CONTAINED IN AN AQUEOUS SOLUTION COMPRISING ADDING AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,3 - DIMERCAPTOPROPANOL - 1,2MERCAPTOETHANOL AND B-MERCAPTOPROPIONIC ACID TO SAID SOLUTION, CONTACTING THE MIXTURE THUS OBTAINED WITH SILICA GEL WHEREBY THE RUTHENIUM VALUES AND ZIRCONIUM AND NIOBIUM VALUES ARE ADSORBED ON SAID SILICA GEL WHILE SAID URANIUM VALUES REMAIN IN SOLUTION, AND SEPARATING THE SILICA GEL FROM THE SOLUTION.
Claim 2
Independent Claim
93 words
A METHOD OF SIMULTANEOUSLY SEPARATING RUTHENIUM VALUES AND AT LEAST ONE OF THE VALUES SELECTED FROM THE GROUP CONSISTING OF ZIRCONIUM VALUES SELECTED FROM THE FROM URANIUM VALUES CONTAINED IN AN AQUEOUS SOLUTION COMPRISING ADDING AN ORGANIC COMPOUND SELECTED FROM THE GROUP CONSISTING OF 2,3 - DIMERCAPTOPROPANOL - 1,2MERCAPTOETHANOL AND B-MERCAPTOPROPIONIC ACID TO SAID SOLUTION, CONTACTING THE MIXTURE THUS OBTAINED WITH SILICA GEL WHEREBY THE RUTHENIUM VALUES AND ZIRCONIUM AND NIOBIUM VALUES ARE ADSORBED ON SAID SILICA GEL WHILE SAID URANIUM VALUES REMAIN IN SOLUTION, AND SEPARATING THE SILICA GEL FROM THE SOLUTION.
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) | 1960-06-17 | 1960-12-17 | 1961-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-17 | 1964-12-17 | 1965-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-17 | 1968-12-17 | 1969-06-18 | $7700.00 | Window Closed / Lapsed |