US2412500A - Froth flotation of sulphide ores - Google Patents
Froth flotation of sulphide ores Download PDFInfo
- Publication number
- US2412500A US2412500A US532205A US53220544A US2412500A US 2412500 A US2412500 A US 2412500A US 532205 A US532205 A US 532205A US 53220544 A US53220544 A US 53220544A US 2412500 A US2412500 A US 2412500A
- Authority
- US
- United States
- Prior art keywords
- xanthogen
- froth flotation
- ethyl
- flotation
- ore
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000009291 froth flotation Methods 0.000 title description 13
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title description 6
- 238000000034 method Methods 0.000 description 12
- XBDQKXXYIPTUBI-UHFFFAOYSA-M Propionate Chemical compound CCC([O-])=O XBDQKXXYIPTUBI-UHFFFAOYSA-M 0.000 description 10
- -1 alkyl radicals Chemical class 0.000 description 10
- 239000003153 chemical reaction reagent Substances 0.000 description 10
- WBJINCZRORDGAQ-UHFFFAOYSA-N formic acid ethyl ester Natural products CCOC=O WBJINCZRORDGAQ-UHFFFAOYSA-N 0.000 description 10
- 150000001875 compounds Chemical class 0.000 description 8
- 239000010949 copper Substances 0.000 description 8
- 238000005188 flotation Methods 0.000 description 8
- 239000012141 concentrate Substances 0.000 description 6
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 6
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 4
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 description 4
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 4
- 238000004458 analytical method Methods 0.000 description 3
- 125000004432 carbon atom Chemical group C* 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-M Formate Chemical compound [O-]C=O BDAGIHXWWSANSR-UHFFFAOYSA-M 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 150000003254 radicals Chemical group 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 125000004429 atom Chemical group 0.000 description 1
- QVFWZNCVPCJQOP-UHFFFAOYSA-N chloralodol Chemical compound CC(O)(C)CC(C)OC(O)C(Cl)(Cl)Cl QVFWZNCVPCJQOP-UHFFFAOYSA-N 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- QUPDWYMUPZLYJZ-UHFFFAOYSA-N ethyl Chemical compound C[CH2] QUPDWYMUPZLYJZ-UHFFFAOYSA-N 0.000 description 1
- SRMBUOSQQRRJRV-UHFFFAOYSA-N ethyl ethoxycarbothioylsulfanylformate Chemical compound CCOC(=O)SC(=S)OCC SRMBUOSQQRRJRV-UHFFFAOYSA-N 0.000 description 1
- 239000008396 flotation agent Substances 0.000 description 1
- 150000004675 formic acid derivatives Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000010665 pine oil Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S209/00—Classifying, separating, and assorting solids
- Y10S209/901—Froth flotation; copper
Definitions
- Patented Dec. 10, 1946 STATES PATENT orriics Fao'rn r Lora'ngii 'fi sutrmns once I Arthur H. Fischer, New York, N. Y.
- This invention relates to th concentration of ores-and has for an object the provision of certain improvements in concentration operations. More particularly, the invention contemplates the provision Qfrcertain improvements in flotation operations; A further object of the invention is to provide certain improvements in flotation methods or processes.
- alkyi xanthogen formates which are unsymmetricalwithrespect to the alkyl radicals are highly efiective flotation reagents which may be employed advantageously as mineral collecting agents in" conjunction with frothing agents and conditioning agents in froth flotation operations.
- Ali ylxanthogen fcrmates found most suitable for-use in flotation concentration processes are those in which the larger alkyl radicals are disposed on the xanthogen side as indicated by the I following structural formula:
- R and R. are alkyl radicals and R contains the greater numberof carbon atoms.
- alkyl xanthogen f ormates which are unsymmetrical with respect to the alkyl radicals may be employed more advantageously in various flotation circuits than those which are symmetrical.
- a symmetrical compound comprising relatively small alkyl radicals, such as ethyl xanthogen ethyl formate, tends to break down and become ineffective in an alkaline circuit.
- Compounds having larger alkyl radicals substituted for or instead of one or both of the ethyl radicals have greater stability in alkaline circuits.
- a compound having the same larger radical substituted for or instead of the ethyl radicals on both the xanthogen side and the formats side may be of such stability as to be practically ineffective as a flotation agent.
- a compound having a larger radical on only the xanthogen side has desired stability without decreased flotative properties. I have found that a compound comprising on the Xanthogen side an alkyl radical containing five or more carbon atoms and comprising on the formate side an alkyl radical containing alesser number of carbon atoms generally may be employed with great advantage as a notation agent.
- a neutral, acid or alkaline circuit may be employed.
- the flotation reagents may be emplayed with particular advantage in alkaline .circults. J
- the flotation reagents may be employed advantageously in froth flotation operations designed for the concentration of both non-metallic minerals and metallic minerals and in froth flotation operations designed for the concentration
- The. reagents can be employed with partlcular advantage in froth'flotation operations designed for the concentration of copper sulphide ores and other sulphide ores.
- Example I Humbolt copper sulphide ore of the following composition with respect to copper was ground in water to form three separate aqueous pulps which were subjected to separate froth flotation operations in the presence of the reagents indicated with the production of concentrates and tailing products of the analyses indicated:
- the method of concentrating sulphide ore which comprises subjecting the ore in the form Example III of a pulp to a froth flotation operation in the Heads percent Cu Concentrates gercent Cu Tails percent u Ethyl starters-5555mm; Hexyl xanthogen ethyl iormate Example IV presence of amyl xanthogn ethyl formats.
- the method of concentrating sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of hexyl xanthogen ethyl formate.
- the method of concentrating copper suiphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of amyl xanthogen ethyl formate.
- the method of concentrating sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of a compound of the group consisting of amyl xanthogen ethyl formate and hexyl xanthogen ethyl formate.
- the method of concentrating copper sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operatin sisting of amyi xanthogen ethyl formate and hexyl xanthogen ethyl formate.
Landscapes
- Paper (AREA)
Description
Patented Dec. 10, 1946 STATES PATENT orriics Fao'rn r Lora'ngii 'fi sutrmns once I Arthur H. Fischer, New York, N. Y.
No Drawing. I Application April 21, 1944, Serial N0. 5.2305
1: This invention-relates to th concentration of ores-and has for an object the provision of certain improvements in concentration operations. More particularly, the invention contemplates the provision Qfrcertain improvements in flotation operations; A further object of the invention is to provide certain improvements in flotation methods or processes. I
The invention is based on my discovery that alkyi xanthogen formates which are unsymmetricalwithrespect to the alkyl radicals are highly efiective flotation reagents which may be employed advantageously as mineral collecting agents in" conjunction with frothing agents and conditioning agents in froth flotation operations. Ali ylxanthogen fcrmates found most suitable for-use in flotation concentration processes are those in which the larger alkyl radicals are disposed on the xanthogen side as indicated by the I following structural formula:
s o nodes-lion in which R and R. are alkyl radicals and R contains the greater numberof carbon atoms.
I have found that the alkyl xanthogen f ormates which are unsymmetrical with respect to the alkyl radicals may be employed more advantageously in various flotation circuits than those which are symmetrical. Thus, for example, a symmetrical compound comprising relatively small alkyl radicals, such as ethyl xanthogen ethyl formate, tends to break down and become ineffective in an alkaline circuit. Compounds having larger alkyl radicals substituted for or instead of one or both of the ethyl radicals have greater stability in alkaline circuits. A compound having the same larger radical substituted for or instead of the ethyl radicals on both the xanthogen side and the formats side may be of such stability as to be practically ineffective as a flotation agent. A compound having a larger radical on only the xanthogen side has desired stability without decreased flotative properties. I have found that a compound comprising on the Xanthogen side an alkyl radical containing five or more carbon atoms and comprising on the formate side an alkyl radical containing alesser number of carbon atoms generally may be employed with great advantage as a notation agent.
.' of both oxidized ores and sulphide ores.
' ethyl radical.
6' Claims. (or. 209-106) Among the compounds found to be most efiecr' tiveare those comprising on the xanthogen side alkyl radicals containing-five or morecarbon atoms and comprising on the formate side the.- Bpecii'ic compounds whlchhave been foundto be highly effective include amyl; xanthogen ethyl formate and hexyl xanthogen; ethyl formate. V V
In practicing a method or process of the invention, a neutral, acid or alkaline circuit may be employed. The flotation reagents may be emplayed with particular advantage in alkaline .circults. J The flotation reagents may be employed advantageously in froth flotation operations designed for the concentration of both non-metallic minerals and metallic minerals and in froth flotation operations designed for the concentration The. reagents can be employed with partlcular advantage in froth'flotation operations designed for the concentration of copper sulphide ores and other sulphide ores.
The following examples lllustratetthe advantages of, the reagents andprocesses of the invention over reagents and processes employed heretofore.
Example I Humbolt copper sulphide ore of the following composition with respect to copper was ground in water to form three separate aqueous pulps which were subjected to separate froth flotation operations in the presence of the reagents indicated with the production of concentrates and tailing products of the analyses indicated:
in water to form two separate aqueous pulps which were subjected to separate froth flotation operations in the presence of the reagents indiin water to form three separate aqueous pulps which were subjected to separate froth flotation operations in the presence of the reagents indicated with the production of concentrates and tailing products of the analyses indicated:
cated with the production of concentrates and tailing products of the analyses indicated: 1 2 a Test Heads percent Cu Concentrates percent Cu. 1 2 Tails percent Cu Holds percent Ou 12 1 12 v REAGENTS, POUNDS PER TON Concentrates percent Cu. 16.84 16.48 15 silspercent Cu .68 .18 Lime n 8 8 8 Pine oil REAGENTB, POUNDS PER TON Ethyl mnthosen ethyl ro mate Amy] xauthogen amyl formate Amyl xanthogen ethyl formate Lime 12 12 2o Plneoll .14 .14 Ethyl xanthogen ethyl fol-mate .02 Iclaim: Amylmmgen hymrmate 1. The method of concentrating sulphide ore which comprises subjecting the ore in the form Example III of a pulp to a froth flotation operation in the Heads percent Cu Concentrates gercent Cu Tails percent u Ethyl starters-5555mm; Hexyl xanthogen ethyl iormate Example IV presence of amyl xanthogn ethyl formats.
2. The method of concentrating sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of hexyl xanthogen ethyl formate.
3. The method of concentrating copper suiphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of amyl xanthogen ethyl formate.
4. The method of concentrating copper sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of hexyl xanthogen ethyl formate.
5. The method of concentrating sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operation in the presence of a compound of the group consisting of amyl xanthogen ethyl formate and hexyl xanthogen ethyl formate.
6. The method of concentrating copper sulphide ore which comprises subjecting the ore in the form of a pulp to a froth flotation operatin sisting of amyi xanthogen ethyl formate and hexyl xanthogen ethyl formate.
ARTHUR H. FISCHER.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US532205A US2412500A (en) | 1944-04-21 | 1944-04-21 | Froth flotation of sulphide ores |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US532205A US2412500A (en) | 1944-04-21 | 1944-04-21 | Froth flotation of sulphide ores |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US2412500A true US2412500A (en) | 1946-12-10 |
Family
ID=24120801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US532205A Expired - Lifetime US2412500A (en) | 1944-04-21 | 1944-04-21 | Froth flotation of sulphide ores |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US2412500A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2608572A (en) * | 1948-06-02 | 1952-08-26 | Minerec Corp | Xanthogen formates |
| US2608573A (en) * | 1948-06-02 | 1952-08-26 | Minerec Corp | Xanthogen compounds |
| US4136020A (en) * | 1976-11-11 | 1979-01-23 | Minerec Corporation | Flotation reagent and process |
| US4220524A (en) * | 1978-01-13 | 1980-09-02 | Codelco-Chile | Collector agent for the recovery of metal values in sulphide ores by froth flotation |
| US4362615A (en) * | 1981-10-15 | 1982-12-07 | The United States Of America As Represented By The Secretary Of The Interior | Froth flotation of rutile |
| US4410439A (en) * | 1981-06-04 | 1983-10-18 | Crozier Ronald D G | Collector compositions for froth flotation and process for making same |
| US4689142A (en) * | 1985-03-22 | 1987-08-25 | Essex Industrial Chemicals, Inc. | Alkyl mercaptans as collector additives in froth flotation |
-
1944
- 1944-04-21 US US532205A patent/US2412500A/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2608572A (en) * | 1948-06-02 | 1952-08-26 | Minerec Corp | Xanthogen formates |
| US2608573A (en) * | 1948-06-02 | 1952-08-26 | Minerec Corp | Xanthogen compounds |
| US4136020A (en) * | 1976-11-11 | 1979-01-23 | Minerec Corporation | Flotation reagent and process |
| US4220524A (en) * | 1978-01-13 | 1980-09-02 | Codelco-Chile | Collector agent for the recovery of metal values in sulphide ores by froth flotation |
| US4410439A (en) * | 1981-06-04 | 1983-10-18 | Crozier Ronald D G | Collector compositions for froth flotation and process for making same |
| US4362615A (en) * | 1981-10-15 | 1982-12-07 | The United States Of America As Represented By The Secretary Of The Interior | Froth flotation of rutile |
| US4689142A (en) * | 1985-03-22 | 1987-08-25 | Essex Industrial Chemicals, Inc. | Alkyl mercaptans as collector additives in froth flotation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2412500A (en) | Froth flotation of sulphide ores | |
| US1833740A (en) | Process of ore flotation | |
| US2074699A (en) | Flotation process | |
| US2501269A (en) | Froth flotation of sulfide ores | |
| US2316743A (en) | Flotation of molybdenite | |
| US2380698A (en) | Beneficiation of acidic minerals | |
| US1497699A (en) | Concentration of ores | |
| US3469692A (en) | Use of organic dithiols as flotation reagents | |
| GB498450A (en) | Improvements in or relating to processes of concentrating minerals from their ores | |
| US2467369A (en) | Froth flotation of ores with aromatic alcohol | |
| US2446207A (en) | Froth flotation of ores employing a water-soluble salt of a cymene sulfonic acid | |
| CN114100863A (en) | Application of alpha-enol ketone in lead sulfide mineral flotation | |
| US3329266A (en) | Flotation process involving depression of sulfide minerals previously activated | |
| US2512715A (en) | Froth flotation of sulfide ores | |
| US2084413A (en) | Flotation reagent | |
| US1837852A (en) | Butyl xanthate flotation | |
| US2636604A (en) | Flotation of pyrites from a pyrite ore pulp | |
| US1850991A (en) | Froth-flotation concentration of ores | |
| US1970508A (en) | Flotation of ores | |
| US2469368A (en) | Froth flotation of sulfide ores with phenyl-imido-amyl-dithiocarbonate | |
| US3223238A (en) | Flotation of sulfide ores | |
| US1763851A (en) | Concentration of ores | |
| US1806362A (en) | Concentration of ores by flotation | |
| US2664198A (en) | Differential froth flotation process | |
| US1807860A (en) | Separation of minerals |