US3822014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of flotation of minterals and ores
Assignee: UCB SA
•
Filing: 1971-02-11
•
Granted: 1974-07-02
•
Expires: 1991-02-11
Abstract
Abstract Process of froth flotation of oxide minerals which comprises using at least one of the following collector agents 1. MIXED SALTS OF AMMONIUM AND AMINES OF THE FORMULA: X(COONH4)2 (COOH.NR''R''''R'''''')2 2. ester-sulfonates of the formula: HX(COOR'')(COOR'''')(COOR'''''')(COOR'''''''')(SO3M) 3. ester amine salt sulfonates of the formula: HX(COOR)2(COOH.NR''R''''R'''''')2(SO3M) 4. sulfonates of mixed salts of ammonium and amines of the formula: HX(COONH4)2(COOH.NR''R''''R'''''')2(SO3M) in these formulae, X representing the hydrocarbon radical of the acid obtained by controlled pyrolysis of calcium citrate and acidification of the obtained pyrolysate; R being a C1-C20 alkyl radical; R'', R'''', R'''''' and R'''''''' being each hydrogen, C1-C20 alkyl, cycloalkyl, aralkyl, alkaryl or aryl, at least one of R'', R'''', R'''''' and R'''''''' being other than hydrogen and M being sodium, potassium or ammonium.
Inventors
- 👤 A Verheyden
- 👤 J Hartmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:52
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/001; B03D1/004; B03D1/012; B03D1/01; B03D2201/00; B03D2201/02; B03D2203/00; B03D2203/02; B03D2203/04
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
11 words
MIXED SALTS OF AMMONIUM AND AMINES OF THE FORMULA: X(COONH4)2 (COOH.NR''R"R''")2
Claim 2
Dependent Claim
11 words
MIXED SALTS OF AMMONIUM AND AMINES OF THE FORMULA: X(COONH4)2 (COOH.NR''R"R''")2
Claim 3
Dependent Claim
5 words
ESTER-SULFONATES OF THE FORMULA: HX(COOR'')(COOR")(COOR"'')(COOR"")(SO3M)
Claim 4
Dependent Claim
5 words
ESTER-SULFONATES OF THE FORMULA: HX(COOR'')(COOR")(COOR"'')(COOR"")(SO3M)
Claim 5
Dependent Claim
26 words
A process according to claim 1, in which the collector agents are used in amounts of 300 to 4,000 g. per ton of mineral or ore.
Claim 6
Dependent Claim
9 words
ester-sulfonates of the formula: HX(COOR'') (COOR'''') (COOR'''''') (COOR'''''''') SO3M)
Claim 7
Dependent Claim
9 words
ester-sulfonates of the formula: HX(COOR'') (COOR'''') (COOR'''''') (COOR'''''''') SO3M)
Claim 8
Dependent Claim
9 words
ester amine salt sulfonates of the formula: HX(COOR)2(COOH.NR''R''''R'''''')2(SO3M) and
Claim 9
Dependent Claim
9 words
ester amine salt sulfonates of the formula: HX(COOR)2(COOH.NR''R''''R'''''')2(SO3M) and
Claim 10
Dependent Claim
26 words
A process according to claim 1, in which the collector agents are used in amounts of 500 to 1,000 g. per ton of mineral or ore.
Claim 11
Dependent Claim
8 words
ESTER AMINE SALT SULFONATES OF THE FORMULA: HX(COOR)2(COOH.NR''R"R"'')2(SO3M)
Claim 12
Dependent Claim
8 words
ESTER AMINE SALT SULFONATES OF THE FORMULA: HX(COOR)2(COOH.NR''R"R"'')2(SO3M)
Claim 13
Dependent Claim
78 words
SULFONATES OF MIXED SALTS OF AMMONOUM AND AMINES OF THE FORMULA: HX(COONH4)2(COOH.NR''R"R"'')2(SO3M) IN THESE FORMULAE, X REPRESENTING THE HYDROCARBON RADICAL OF THE ACID OBTAINED BY CONTROLLED PYROLYSIS OF CALCIUM CITRATE AND ACIDIFICATION OF THE OBTAINED PYROLYSATE; R BEING A C1-C20 ALKYL RADICAL; R'', R", R"'', AND R"" BEING EACH HYDROGEN, C1C20 ALKYL CYCLOALKYL, ARALKYL, ALKARYL OR ARYL, AT LEAST ONE OF R R'', R", R"'' AND R"" BEING OTHER THAN HYDROGEN AND M BEING SODIUM, POTASSIUM OR AMMONIUM.
Claim 14
Dependent Claim
78 words
SULFONATES OF MIXED SALTS OF AMMONOUM AND AMINES OF THE FORMULA: HX(COONH4)2(COOH.NR''R"R"'')2(SO3M) IN THESE FORMULAE, X REPRESENTING THE HYDROCARBON RADICAL OF THE ACID OBTAINED BY CONTROLLED PYROLYSIS OF CALCIUM CITRATE AND ACIDIFICATION OF THE OBTAINED PYROLYSATE; R BEING A C1-C20 ALKYL RADICAL; R'', R", R"'', AND R"" BEING EACH HYDROGEN, C1C20 ALKYL CYCLOALKYL, ARALKYL, ALKARYL OR ARYL, AT LEAST ONE OF R R'', R", R"'' AND R"" BEING OTHER THAN HYDROGEN AND M BEING SODIUM, POTASSIUM OR AMMONIUM.
Claim 15
Dependent Claim
16 words
A process according to claim 1, in which the collector agents are used at ambient temperature.
Claim 16
Dependent Claim
108 words
sulfonates of mixed salts of ammonium and amines of the formula: HX(COONH4)2(COOH.NR''R''''R'''''')2(SO3M) wherein in the above formulas, X respresents the hydrocarbon radical of the acid obtained by controlled pyrolysis of calcium citrate at a temperature within the range of 230*C to 400*C and acidification of the obtained pyrolysate; R is a C1-C20 alkyl radical; R'', R'''', R'''''' and R'''''''' is a member selected from the group consisting of hydrogen atoms and C1-C20 alkyl, cycloalkyl, aralkyl, alkaryl and aryl radicals, at least one of R'', R'''', R'''''' and R'''''''' being other than hydrogen and wherein M is a member selected from the group consisting of sodium, potassium and ammonium.
Claim 17
Dependent Claim
108 words
sulfonates of mixed salts of ammonium and amines of the formula: HX(COONH4)2(COOH.NR''R''''R'''''')2(SO3M) wherein in the above formulas, X respresents the hydrocarbon radical of the acid obtained by controlled pyrolysis of calcium citrate at a temperature within the range of 230*C to 400*C and acidification of the obtained pyrolysate; R is a C1-C20 alkyl radical; R'', R'''', R'''''' and R'''''''' is a member selected from the group consisting of hydrogen atoms and C1-C20 alkyl, cycloalkyl, aralkyl, alkaryl and aryl radicals, at least one of R'', R'''', R'''''' and R'''''''' being other than hydrogen and wherein M is a member selected from the group consisting of sodium, potassium and ammonium.
Claim 18
Dependent Claim
20 words
A process according to claim 1, in which the collector Agents are used at a temperature higher than ambient temperature.
Claim 19
Dependent Claim
20 words
A process according to claim 1, in which the collector agents are used at a pH of at most 7.
Claim 20
Dependent Claim
20 words
A process according to claim 1, in which the collector agents are used at a pH of at least 7.
Claim 21
Dependent Claim
39 words
A process according to claim 1, in which the collector agents are used together with products selected from the group consisting of ordinary collector agents not according to the invention, frothing agents, depressants, activators, precipitation agents, and dispersing agents.
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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) | 1977-07-01 | 1977-12-31 | 1978-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-01 | 1981-12-31 | 1982-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-01 | 1985-12-31 | 1986-07-02 | $7700.00 | Window Closed / Lapsed |