US3151946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Extraction of gallium using a trialkyl pohosphate
Assignee: Individual
•
Filing: 1961-07-20
•
Granted: 1964-10-06
•
Expires: 1981-07-20
Abstract
No abstract record available.
Inventors
- 👤 Nagumo Tadashi
- 👤 Murakoshi Masahiko
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:18
CPC Classifications
C; C01; C01G; C01G15/00; C01G15/003; C22; C22B; C22B3/00; C22B3/20; C22B3/26; C22B3/38; C22B3/384; C22B3/3846; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
180 words
A PROCESS FOR SEPARATING AND EXTRACTING GALLIUM FROM A MAJOR PORTION OF FERRIC CHLORIDE COEXISTING THEREWITH IN AN AQUEOUS HYDROCHLORIC ACID SOLUTION WHICH COMPRISES ADDING TRIALKYL PHOSPHATE SOLVENT HAVING 8 TO 25 CARBON ATOMS TO A HYDROCHLORIC ACID SOLUTION CONTAINING GALLIUM CHLORIDE TOGETHER WITH FERRIC CHLORIDE, THE LATTER IN AN AMOUNT BETWEEN 10 AND 1000 TIMES THE EQUIVALENT OF THE GALLIUM, AND WHERE THE CONCENTRATION OF SAID HYDROCHLORIC ACID SOLUTION IS SUCH THAT THE TOTAL CHLORINE ION CONCENTRATION IS BETWEEN 5.0 N TO 10.0 N THE AMOUNT OF FREE HYDROCHLORIC ACID THE CONCENTRATION OF FREE HYDROCHLORIC ACID IS LESS THAN 7.0 N, BUT GREATER THAN THE MOLAR AMOUNT OF GALLIUM INCLUDED AND THE MOLAR AMOUNT OF SAID TRIALKYL PHOSPHATE IS 0.15 TO 1.5 TIMES THE MOLAR AMOUNT OF FERRIC CHLORIDE IN THE AQUEOUS PHASE TOGETHER WITH A MINOR PORTION OF FERRIC CHLORIDE, WASHING WITH WATER THE SOLVENT AFTER THE EXTRACTION, WHEREBY THE GALLIUM AND FERRIC CHLORIDE ARE EXRTRACTED FROM THE SOLVENT AND THE SOLVENT MAY BE USED FOR THE EXTRACTION OF GALLIUM AND FERRIC CHLORIDE FROM A FRESH HYDROCHLORIC SOLUTION.
Claim 2
Dependent Claim
180 words
A PROCESS FOR SEPARATING AND EXTRACTING GALLIUM FROM A MAJOR PORTION OF FERRIC CHLORIDE COEXISTING THEREWITH IN AN AQUEOUS HYDROCHLORIC ACID SOLUTION WHICH COMPRISES ADDING TRIALKYL PHOSPHATE SOLVENT HAVING 8 TO 25 CARBON ATOMS TO A HYDROCHLORIC ACID SOLUTION CONTAINING GALLIUM CHLORIDE TOGETHER WITH FERRIC CHLORIDE, THE LATTER IN AN AMOUNT BETWEEN 10 AND 1000 TIMES THE EQUIVALENT OF THE GALLIUM, AND WHERE THE CONCENTRATION OF SAID HYDROCHLORIC ACID SOLUTION IS SUCH THAT THE TOTAL CHLORINE ION CONCENTRATION IS BETWEEN 5.0 N TO 10.0 N THE AMOUNT OF FREE HYDROCHLORIC ACID THE CONCENTRATION OF FREE HYDROCHLORIC ACID IS LESS THAN 7.0 N, BUT GREATER THAN THE MOLAR AMOUNT OF GALLIUM INCLUDED AND THE MOLAR AMOUNT OF SAID TRIALKYL PHOSPHATE IS 0.15 TO 1.5 TIMES THE MOLAR AMOUNT OF FERRIC CHLORIDE IN THE AQUEOUS PHASE TOGETHER WITH A MINOR PORTION OF FERRIC CHLORIDE, WASHING WITH WATER THE SOLVENT AFTER THE EXTRACTION, WHEREBY THE GALLIUM AND FERRIC CHLORIDE ARE EXRTRACTED FROM THE SOLVENT AND THE SOLVENT MAY BE USED FOR THE EXTRACTION OF GALLIUM AND FERRIC CHLORIDE FROM A FRESH HYDROCHLORIC SOLUTION.
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) | 1967-10-06 | 1968-04-06 | 1968-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-06 | 1972-04-06 | 1972-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-06 | 1976-04-06 | 1976-10-06 | $7700.00 | Window Closed / Lapsed |