US3845862A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Concentration of oxide copper ores by flotation separation
Assignee: ConocoPhillips Co
•
Filing: 1973-01-04
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Granted: 1974-11-05
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Expires: 1993-01-04
Abstract
Abstract Oxide copper ores in subdivided form may be concentrated in a flotation separation process by slurrying said ores in an aqueous solution of a flotation reagent followed by generating gas bubbles in the slurry to float the oxide copper and recovering the concentrated oxide copper from the surface of the slurry, wherein the flotation reagent is a quaternary hydrocarbyl ammonium or phosphonium halide salt.
Inventors
- 👤 S Mcguire
- 👤 C Kennedy
- 👤 J Stauter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:58
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/014; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
70 words
IN A FLOTATION SEPARATION PROCESS WHEREIN OXIDE COPPER ORES IN SUBDIVIDED FORM ARE CONCENTRATION BY SLURRYING SAID ORES IN AN AQUEOUS SOLUTION OF A FLOATION REAGENT FOLLOWED BY GENERATING GAS BUBBLES IN THE SLURRY TO FLOAT THE OXIDE COPPER AND RECOVERING THE CONCENTRATION OXIDE COPPER FROM THE SURFACE OF THE SLURRY, THE IMPROVEMENT THEREIN WHICH COMPRISES EMPLOYING A QUATERNARY SALT AS A FLOTATION REAGENT, SAID QUATERNARY SALT BEING DEFINED BY
Claim 2
Dependent Claim
70 words
IN A FLOTATION SEPARATION PROCESS WHEREIN OXIDE COPPER ORES IN SUBDIVIDED FORM ARE CONCENTRATION BY SLURRYING SAID ORES IN AN AQUEOUS SOLUTION OF A FLOATION REAGENT FOLLOWED BY GENERATING GAS BUBBLES IN THE SLURRY TO FLOAT THE OXIDE COPPER AND RECOVERING THE CONCENTRATION OXIDE COPPER FROM THE SURFACE OF THE SLURRY, THE IMPROVEMENT THEREIN WHICH COMPRISES EMPLOYING A QUATERNARY SALT AS A FLOTATION REAGENT, SAID QUATERNARY SALT BEING DEFINED BY
Claim 3
Dependent Claim
10 words
A process according to claim 1 wherein Y is nitrogen.
Claim 4
Dependent Claim
10 words
A process according to claim 1 wherein Y is phosphorus.
Claim 5
Dependent Claim
12 words
A process according to claim 1 wherein X is bromine or chlorine.
Claim 6
Dependent Claim
13 words
A process according to claim 1 wherein each R is an alkyl radical.
Claim 7
Dependent Claim
13 words
A process according to claim 1 wherein at least one R is a
Claim 8
Dependent Claim
22 words
A process according to claim 1 wherein one R is an unsubstituted benzyl radical and the remaining R groups are alkyl radicals.
Claim 9
Dependent Claim
23 words
A process according to claim 1 wherein about 0.01 to about 5 pounds of flotation reagent per ton of raw ore are employed.
References Cited (Backward Citations)
US2087565A
Cited
GB410956A
Cited
US2132902A
Cited
US2129264A
Cited
US2214352A
Cited
US2242224A
Cited
US2190133A
Cited
US2267496A
Cited
US2337118A
Cited
US3438494A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-11-04 | 1978-05-06 | 1978-11-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-04 | 1982-05-06 | 1982-11-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-04 | 1986-05-06 | 1986-11-05 | $7700.00 | Window Closed / Lapsed |