US3288598A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for recovering metals
Assignee: Freeport Minerals Corp
•
Filing: 1963-04-11
•
Granted: 1966-11-29
•
Expires: 1983-04-11
Abstract
No abstract record available.
Inventors
- 👤 William G Hogue
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:29
CPC Classifications
C; C22; C22B; C22B3/00; C22B3/02; C22B15/00; C22B15/0063; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
A PROCESS FOR RECOVERING COPPER VALUES FROM PREGNANT LIQUOR COMPRISING: (A) INJECTING PREGNANT LIQUOR UPWARDLY INTO A MASS OF SPONGE IRON PARTICLES CONTAINED IN A REACTION VESSEL, AT A SUFFICIENTLY VELOCITY OF EFFECT MOTION OF SAID SPONGE IRON PARTICLES TO CAUSE THEM TO ABRADE AGAINST ONE ANOTHER; (B) CHANGING THE VELOCITY OF THE UPWARDLY MOVING STREAM OF REACTING LIQUOR IN AM AMOUNT SO THAT THE COPPER PRECIPITATE PARTICLES FORMED ARE CARRIED UPWARD WITH THE FLOWING STREAM WHICH IS SUBSTANTIALLY FREE FROM IRON PARTICLES; (C) INTRODUCING THE FLOWING STREAM CONTAINING SAID COPPER PARTICLES INTO A SETTLING ZONE TO EFFECT SEPARATION OF SAID COPPER PARTICLES.
Claim 2
Dependent Claim
103 words
A PROCESS FOR RECOVERING COPPER VALUES FROM PREGNANT LIQUOR COMPRISING: (A) INJECTING PREGNANT LIQUOR UPWARDLY INTO A MASS OF SPONGE IRON PARTICLES CONTAINED IN A REACTION VESSEL, AT A SUFFICIENTLY VELOCITY OF EFFECT MOTION OF SAID SPONGE IRON PARTICLES TO CAUSE THEM TO ABRADE AGAINST ONE ANOTHER; (B) CHANGING THE VELOCITY OF THE UPWARDLY MOVING STREAM OF REACTING LIQUOR IN AM AMOUNT SO THAT THE COPPER PRECIPITATE PARTICLES FORMED ARE CARRIED UPWARD WITH THE FLOWING STREAM WHICH IS SUBSTANTIALLY FREE FROM IRON PARTICLES; (C) INTRODUCING THE FLOWING STREAM CONTAINING SAID COPPER PARTICLES INTO A SETTLING ZONE TO EFFECT SEPARATION OF SAID COPPER PARTICLES.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |