US2970096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for treating oxidized copper ores
Assignee: Banner Mining Co
•
Filing: 1958-06-26
•
Granted: 1961-01-31
•
Expires: 1978-06-26
Abstract
No abstract record available.
Inventors
- 👤 Frank E Horton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:23
CPC Classifications
C; C22; C22B; C22B15/00; C22B15/0063; C25; C25C; C25C1/00; C25C1/12; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
100 words
THE METHOD OF EXTRACTING COPPER AND PREPARING AN ELECTROYTE FROM OXIDIZED COPPER ORE PARTICLES CONTAINING SUBSTANTIAL AMOUNTS OF CHRYSOCOLLA WHICH ORE PARTICLES ARE UNSUITABLE FOR ACID LEACHING BECAUSE OF THE PRESENCE OF CALCIUM AND/OR MAGNESIUM CARBONATES, WHICH METHOD COMPRISES LEACHING THE ORE PARTICLES WITH A WATER SOLUTION OF ONE OF THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE OF A CONCENTRATION OF BETWEEN 5 AND 10 NORMAL, THUS PRODUCING A SOLUTION CONTAINING CUPRATE ANIONS, AND SCRUBBING THE ORE PARTICLES DURING THE LEACHING TO REMOVE THERFROM SILICA GELS THUS CONTINUALLY EXPOSING THE SURFACES OF THE ORE PARTICLES TO CONTINUED LEACHING.
Claim 2
Independent Claim
100 words
THE METHOD OF EXTRACTING COPPER AND PREPARING AN ELECTROYTE FROM OXIDIZED COPPER ORE PARTICLES CONTAINING SUBSTANTIAL AMOUNTS OF CHRYSOCOLLA WHICH ORE PARTICLES ARE UNSUITABLE FOR ACID LEACHING BECAUSE OF THE PRESENCE OF CALCIUM AND/OR MAGNESIUM CARBONATES, WHICH METHOD COMPRISES LEACHING THE ORE PARTICLES WITH A WATER SOLUTION OF ONE OF THE GROUP CONSISTING OF SODIUM HYDROXIDE AND POTASSIUM HYDROXIDE OF A CONCENTRATION OF BETWEEN 5 AND 10 NORMAL, THUS PRODUCING A SOLUTION CONTAINING CUPRATE ANIONS, AND SCRUBBING THE ORE PARTICLES DURING THE LEACHING TO REMOVE THERFROM SILICA GELS THUS CONTINUALLY EXPOSING THE SURFACES OF THE ORE PARTICLES TO CONTINUED LEACHING.
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) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |