US4138350A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Collector combination for non-sulfide ores comprising a fatty acid and a sulfosuccinic acid monoester or salt thereof
Assignee: Wyeth Holdings LLC
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Filing: 1977-12-21
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Granted: 1979-02-06
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Expires: 1997-12-21
Abstract
Abstract A combination of fatty acid and a monoester of sulfosuccinic acid or salt thereof provides improved recovery of non-sulfide ores by froth flotation.
Inventors
- 👤 Samuel S. Wang
- 👤 Eugene L. Smith, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:40
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D1/008; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
A collector combination for non-sulfide ores comprising from about 1 to about 99 weight percent of a fatty acid derived from a vegetable or animal oil and, correspondingly, from about 99 to about 1 weight percent of a monoester of a sulfosuccinic acid of the general formula ##STR7## wherein R is an alkyl radical of about 4 to 18 carbon atoms, an aryl radical one to two carbocyclic rings, an alkaryl radical of about 7 to 18 carbon atoms or an aralkyl radical of about 7 to 18 carbon atoms, n has a numerical value of about 0 to 12, and X is hydrogen, alkali metal or ammonium ion.
Claim 2
Dependent Claim
109 words
A collector combination for non-sulfide ores comprising from about 1 to about 99 weight percent of a fatty acid derived from a vegetable or animal oil and, correspondingly, from about 99 to about 1 weight percent of a monoester of a sulfosuccinic acid of the general formula ##STR7## wherein R is an alkyl radical of about 4 to 18 carbon atoms, an aryl radical one to two carbocyclic rings, an alkaryl radical of about 7 to 18 carbon atoms or an aralkyl radical of about 7 to 18 carbon atoms, n has a numerical value of about 0 to 12, and X is hydrogen, alkali metal or ammonium ion.
Claim 3
Dependent Claim
16 words
The collector combination of claim 1 wherein said monoester of sulfosuccinic acid has the structure: ##STR8##
Claim 4
Dependent Claim
16 words
The collector combination of claim 1 wherein said monoester of sulfosuccinic acid has the structure: ##STR9##
Claim 5
Dependent Claim
16 words
The collector combination of claim 1 wherein said monoester of sulfosuccinic acid has the structure: ##STR10##
Claim 6
Dependent Claim
15 words
The collector combination of claim 1 wherein said fatty acid is derived from tall oil.
Claim 7
Dependent Claim
34 words
The collector combination of claim 1 comprising from about 70 to about 97 weight percent of said fatty acid and from about 30 to 3 weight percent of said monoester of a sulfosuccinic acid.
Claim 8
Dependent Claim
35 words
The collector combination of claim 1 comprising from about 74 to about 95 weight percent of said fatty acid and from about 26 to about 4 weight percent of said monoester of a sulfosuccinic acid.
Claim 9
Dependent Claim
26 words
The collector combination of claim 1 wherein said fatty acid is derived from tall oil and said monoester of a sulfosuccinic acid has the structure: ##STR11##
Claim 10
Dependent Claim
25 words
The collector combination of claim 1 wherein said fatty acid is derived from tall oil and said monoester of sulfosuccinic acid has the structure: ##STR12##
Claim 11
Dependent Claim
26 words
The collector combination of claim 1 wherein said fatty acid is derived from tall oil and said monoester of a sulfosuccinic acid has the structure: ##STR13##
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) | 1982-02-05 | 1982-08-07 | 1983-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-02-05 | 1986-08-07 | 1987-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-02-05 | 1990-08-07 | 1991-02-06 | $7700.00 | Window Closed / Lapsed |