CA2582953A1 - Arsenide depression in flotation of multi-sulfide minerals - Google Patents
Arsenide depression in flotation of multi-sulfide minerals Download PDFInfo
- Publication number
- CA2582953A1 CA2582953A1 CA002582953A CA2582953A CA2582953A1 CA 2582953 A1 CA2582953 A1 CA 2582953A1 CA 002582953 A CA002582953 A CA 002582953A CA 2582953 A CA2582953 A CA 2582953A CA 2582953 A1 CA2582953 A1 CA 2582953A1
- Authority
- CA
- Canada
- Prior art keywords
- process according
- slurry
- addition
- minerals
- flotation
- 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.)
- Granted
Links
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
- B03D1/002—Inorganic compounds
-
- 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
- B03D1/01—Organic compounds containing nitrogen
-
- 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
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D1/02—Froth-flotation processes
- B03D1/06—Froth-flotation processes differential
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0002—Preliminary treatment
- C22B15/0004—Preliminary treatment without modification of the copper constituent
- C22B15/0008—Preliminary treatment without modification of the copper constituent by wet processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B23/00—Obtaining nickel or cobalt
- C22B23/005—Preliminary treatment of ores, e.g. by roasting or by the Krupp-Renn process
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- 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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- 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
Abstract
A mineral separation process includes wet-grinding the ore to liberation of minerals, oxidizing the slurry using air, hydrogen peroxide or other oxidants and floating the valuable minerals at a pH between about 9.0 and 10.0 with a xanthate as collector, and a combination of a polyamine and a sulfur containing species as depressants for arsenide minerals. This depressant suite effectively depresses the flotation of arsenide minerals with no effect on the flotation of the valuable minerals.
Claims (26)
1. A flotation process for selectively recovering valuable metals from an ore comprising the steps of:
wet-grinding the ore into a slurry, adjusting the pH of the slurry to a preset value by the addition of reagents, providing an oxidizing environment to the slurry, adding a reagent suite of a polyamine and a sulfur-containing species to the slurry for depressing flotation of arsenide minerals, readjusting the pH of the slurry to a preset value by the addition of reagents adding a collector and a frother at effective dosages to the slurry to float valuable minerals to be recovered.
wet-grinding the ore into a slurry, adjusting the pH of the slurry to a preset value by the addition of reagents, providing an oxidizing environment to the slurry, adding a reagent suite of a polyamine and a sulfur-containing species to the slurry for depressing flotation of arsenide minerals, readjusting the pH of the slurry to a preset value by the addition of reagents adding a collector and a frother at effective dosages to the slurry to float valuable minerals to be recovered.
2. A process according to Claim 1 wherein the pH of the slurry is about 9.0 to 10Ø
3. A process according to Claim 1 wherein the pH of the slurry is adjusted by the addition of lime.
4. A process according to Claim 1 wherein the oxidizing environment is created by utilizing an oxidant selected from at least one of the group consisting aeration, the addition of hydrogen peroxide, and the addition of permanganate ion.
5. A process according to Claim 1, wherein said polyamine is selected from at least one of the group consisting of ethylene diamine, 1,3-diaminopropane, (2-aminoethyl)-2-aminoethanol, histidine, diethylenetetramine, triethylenetetramine, and any other polyethylenepolyamines in which the number of ethyleneamine units is equal to or greater than that in diethylenetriamine.
6. A process according to claim 1, wherein said sulfur containing species is selected from at least one of the group consisting of thiosulfate, sulfides, hydrosulfides, polysulfides, sulfites, metabisulfites, hydrosulfites, dithionates, tetrathionates, sulfur dioxide, and mixtures thereof, wherein a cationic part of said sulfur containing species consists of hydrogen, sodium, potassium, ammonium, calcium, and barium.
7. A process according to Claim 1 wherein the polyamine and sulfur containing species are provided in a ratio ranging from about 1:1 to 1:8 and most preferably from about 1:1 to 1:4.
8. A process according to Claim 1 wherein the collector is selected from at least one or more of the group consisting of xanthates, phosphine-based compounds, dithiophosphonates, alkyldiphosphates, thionocarbamates, thiourea or other conventional sulfhydryl collectors.
9. A process according to Claim 1 wherein the frother is polypropylene glycol methyl ether.
10. A process according to Claim 1 wherein the slurry contains about 20% to 45% solids by weight.
11. A process according to Claim 1 wherein the slurry has a temperature between about 5°C and 35°C.
12. A flotation process for selectively recovering high grade nickel and copper metal concentrates from nickel-copper ore comprising the steps of:
wet-grinding the nickel-copper ore into a slurry, adjusting the pH of the slurry to a preset value with the addition of reagents, providing an oxidizing environment to the slurry, adding a reagent suite of a polyamine and a sulfite to the slurry for depressing flotation of arsenide minerals, readjusting the pH of the slurry to a preset value with the addition of reagents and adding a collector and a frother at effective dosages to the slurry to float the nickel and copper metals to be recovered.
wet-grinding the nickel-copper ore into a slurry, adjusting the pH of the slurry to a preset value with the addition of reagents, providing an oxidizing environment to the slurry, adding a reagent suite of a polyamine and a sulfite to the slurry for depressing flotation of arsenide minerals, readjusting the pH of the slurry to a preset value with the addition of reagents and adding a collector and a frother at effective dosages to the slurry to float the nickel and copper metals to be recovered.
13. A process according to Claim 12 wherein the slurry includes pentlandite, chalcopyrite, pyrrhotite, gersdorffite, cobaltite and niccolite and siliceous gangue minerals.
14. A process according to Claim 12, wherein the arsenide minerals to be depressed are gersdorffite, niccolite and cobaltite.
15. A process according to Claim 12 wherein the pH of the slurry is about 9.0 to 10Ø
16. A process according to Claim 12 wherein the pH of the slurry is adjusted by the addition of lime.
17. A process according to Claim 12 wherein the oxidizing environment is created by utilizing an oxidant selected from at least one of the group consisting of aeration, the addition of hydrogen peroxide, and the addition of permanganate ions.
18. A process according to Claim 12 wherein the reagent suite for depressing arsenide minerals is an effective ratio of triethylenetetramine to sodium sulfite.
19. A process according to Claim 18 wherein the triethylenetetramine to sodium sulfite ratio is about 1:2 by weight.
20. A process according to Claim 12 wherein potassium amyl xanthate is added as the collector.
21. A process according to Claim 12 wherein the frother is a polypropylene glycol methyl ether.
22. A process according to Claim 12 wherein an effective dosage of the collector is provided and determined by pentlandite, chalcopyrite and pyrrhotite content in the nickel-copper ore.
23. A process according to Claim 12 wherein an effective dosage of the frother is provided to produce a Cu-Ni bulk concentrate of high grades at maximal copper and nickel recovery.
24. A process according to Claim 12 wherein froth is generated by rising air bubbles through an introduction of air to the slurry.
25. A process according to Claim 12 wherein the slurry contains about 40% solids by weight.
26. A process according to Claim 12 wherein the slurry has a temperature between about 23°C.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/960,527 US7004326B1 (en) | 2004-10-07 | 2004-10-07 | Arsenide depression in flotation of multi-sulfide minerals |
US10/960,527 | 2004-10-07 | ||
PCT/CA2005/001075 WO2006037206A1 (en) | 2004-10-07 | 2005-07-12 | Arsenide depression in flotation of multi-sulfide minerals |
Publications (2)
Publication Number | Publication Date |
---|---|
CA2582953A1 true CA2582953A1 (en) | 2006-04-13 |
CA2582953C CA2582953C (en) | 2011-11-08 |
Family
ID=35922619
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA2582953A Expired - Fee Related CA2582953C (en) | 2004-10-07 | 2005-07-12 | Arsenide depression in flotation of multi-sulfide minerals |
Country Status (9)
Country | Link |
---|---|
US (1) | US7004326B1 (en) |
AU (1) | AU2005291783B2 (en) |
BR (1) | BRPI0516117A (en) |
CA (1) | CA2582953C (en) |
FI (1) | FI121737B (en) |
MX (1) | MX2007003955A (en) |
RU (1) | RU2366514C2 (en) |
WO (1) | WO2006037206A1 (en) |
ZA (1) | ZA200702686B (en) |
Families Citing this family (37)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101421426B (en) * | 2006-03-03 | 2015-05-27 | 鑫亚国际有限公司 | Process for extracting gold from gold-bearing ore |
US7972413B2 (en) * | 2006-04-07 | 2011-07-05 | Metal Asia International Ltd. | Precious metal recovery from solution |
CN101259451B (en) * | 2008-04-24 | 2012-01-11 | 中南大学 | Preparation of floating collector |
JP4450108B1 (en) * | 2008-10-29 | 2010-04-14 | 住友金属鉱山株式会社 | Separation of arsenic minerals from high arsenic grade copper-containing materials |
WO2011067680A2 (en) * | 2009-12-04 | 2011-06-09 | Barrick Gold Corporation | Separation of cooper minerals from pyrite using air-metabisulfite treatment |
JP5550933B2 (en) * | 2010-02-04 | 2014-07-16 | 住友金属鉱山株式会社 | Separation of arsenic minerals from high arsenic copper-containing materials |
CN101890398B (en) * | 2010-07-12 | 2013-05-29 | 李海红 | Multifunctional ore dressing chemical, and using method thereof |
WO2013110420A1 (en) | 2012-01-27 | 2013-08-01 | Evonik Degussa Gmbh | Enrichment of metal sulfide ores by oxidant assisted froth flotation |
RU2633465C2 (en) * | 2012-04-12 | 2017-10-12 | Вале С.А. | Method for improving selectivity and extraction of sulfide nickel ores flotation that contain pyrrotine by using synergy of multiple depressors |
CN102941159B (en) * | 2012-11-27 | 2014-09-10 | 化工部长沙设计研究院 | Method for extracting borax from mixed salt through reverse flotation |
CN102974469B (en) * | 2012-12-21 | 2014-12-10 | 长沙矿冶研究院有限责任公司 | Method for reducing sulfur in iron ore concentrate through flotation |
RU2651724C2 (en) | 2013-07-19 | 2018-04-23 | Эвоник Дегусса Гмбх | Method of recovering a copper sulfide concentrate from an ore containing an iron sulfide |
CN103551258B (en) * | 2013-09-29 | 2015-06-03 | 中南大学 | Composite collecting agent for recycling LiBeTaNb from granite pegmatite ore |
CN103657874A (en) * | 2013-12-16 | 2014-03-26 | 裴寿益 | Iron-rich less-tin ore flotation depressing agent and preparation method thereof |
DE102014200415A1 (en) * | 2013-12-20 | 2015-06-25 | Siemens Aktiengesellschaft | Process for the separation of a defined mineral substance phase from a ground ore |
WO2015113141A1 (en) | 2014-01-31 | 2015-08-06 | Goldcorp Inc. | Process for separation of at least one metal sulfide compristng arsenic and/or antimony from a mixed sulfide concentrate |
US10526685B2 (en) | 2015-10-30 | 2020-01-07 | Technological Resources Pty. Limited | Heap leaching |
CN105834008A (en) * | 2016-06-08 | 2016-08-10 | 江西元再生资源有限公司 | Preparation method of inhibitors for arsenic-containing sulfide minerals in copper tailings |
CN110678563A (en) | 2017-04-06 | 2020-01-10 | 技术资源有限公司 | Leaching copper-containing ores |
CN107670843A (en) * | 2017-10-20 | 2018-02-09 | 中国恩菲工程技术有限公司 | The method for handling the nickel ores containing magnetic iron ore |
US20190345580A1 (en) * | 2018-05-09 | 2019-11-14 | Technological Resources Pty. Limited | Leaching Copper-Containing Ores |
CN108927284A (en) * | 2018-06-06 | 2018-12-04 | 北京矿冶科技集团有限公司 | A kind of beneficiation method producing multi-product nickel ore concentrate |
CN108672104B (en) * | 2018-08-01 | 2020-09-18 | 中冶北方(大连)工程技术有限公司 | Reverse flotation system with adjustable iron ore concentrate grade |
CN108672105B (en) * | 2018-08-01 | 2020-10-02 | 中冶北方(大连)工程技术有限公司 | Energy-saving iron concentrate product index adjustable direct flotation system |
CN110369122B (en) * | 2019-08-01 | 2021-05-14 | 厦门紫金矿冶技术有限公司 | Beneficiation method for efficiently recovering high-sulfur gold-copper ore |
CN110465411B (en) * | 2019-09-05 | 2021-06-11 | 紫金矿业集团股份有限公司 | Preferential flotation method for copper-lead sulfide minerals |
CN110961255B (en) * | 2019-11-22 | 2022-04-22 | 西北矿冶研究院 | High-argillization high-secondary-copper sulfide gold and silver ore collecting foaming agent and preparation method thereof |
US10822673B1 (en) * | 2019-12-17 | 2020-11-03 | American Air Liquide, Inc. | Arsenic removal from lead concentrate by ozone treatment and reverse flotation |
CN111229471A (en) * | 2020-02-14 | 2020-06-05 | 中国恩菲工程技术有限公司 | Copper collecting agent and flotation process of copper sulfide cobalt ore |
CN112575190B (en) * | 2020-11-24 | 2022-09-02 | 金川集团股份有限公司 | Beneficiation method for copper-nickel separation of complex refractory nickel-copper concentrate |
JP7438155B2 (en) * | 2021-02-25 | 2024-02-26 | 日鉄鉱業株式会社 | Method for producing low arsenic copper concentrate |
CN113210136B (en) * | 2021-05-24 | 2022-11-25 | 中国恩菲工程技术有限公司 | Combined inhibitor for copper-nickel/copper-cobalt separation and application thereof |
CN113210137B (en) * | 2021-05-24 | 2022-07-12 | 中国恩菲工程技术有限公司 | Combined inhibitor for separation of kaolin-containing copper sulfide ore and separation method |
CN113477406A (en) * | 2021-06-25 | 2021-10-08 | 铜陵有色金属集团股份有限公司 | Method for improving flotation recovery rate of copper separation by adding coarse collecting agent |
CN113649173A (en) * | 2021-08-25 | 2021-11-16 | 南京银茂铅锌矿业有限公司 | Short-process sulfur flotation process for concentrated and rapid return of middlings |
CN113751206B (en) * | 2021-09-15 | 2023-10-03 | 广东省科学院资源利用与稀土开发研究所 | Beneficiation method for arsenic-containing lead-zinc ore |
CN113976331B (en) * | 2021-10-22 | 2023-07-25 | 昆明理工大学 | Method for preparing high-purity pyrite through flotation mass transfer dynamics regulation and control |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2007176A (en) * | 1933-04-15 | 1935-07-09 | Frederic A Brinker | Differential froth flotation |
US2154092A (en) * | 1937-03-12 | 1939-04-11 | Hunt John Edward | Process of flotation concentration of ores |
US2342277A (en) * | 1943-02-02 | 1944-02-22 | American Cyanamid Co | Separation of pyrite, arsenopyrite, and pyrrhotite by flotation |
US2512669A (en) * | 1948-08-04 | 1950-06-27 | Koppers Co Inc | Flotation process |
US2805936A (en) * | 1954-08-16 | 1957-09-10 | Felix A Schaufelberger | Leaching of arsenide ores |
GB1487411A (en) * | 1974-11-19 | 1977-09-28 | Allied Colloids Ltd | Materials and processes for flotation of mineral substances |
US4681675A (en) * | 1985-04-12 | 1987-07-21 | Phillips Petroleum Company | Ore flotation |
US4904374A (en) * | 1987-10-08 | 1990-02-27 | Sentrachem Limited | Froth flotation |
US4826588A (en) * | 1988-04-28 | 1989-05-02 | The Dow Chemical Company | Pyrite depressants useful in the separation of pyrite from coal |
CA1330125C (en) * | 1988-10-11 | 1994-06-07 | Andrew Neil Kerr | Polyamines as pyrrhotite depressant in a flotation process |
US5074993A (en) * | 1989-09-06 | 1991-12-24 | Inco Limited | Flotation process |
US5171428A (en) * | 1991-11-27 | 1992-12-15 | Beattie Morris J V | Flotation separation of arsenopyrite from pyrite |
CA2082831C (en) * | 1992-11-13 | 1996-05-28 | Sadan Kelebek | Selective flotation process for separation of sulphide minerals |
AUPM953894A0 (en) * | 1994-11-16 | 1994-12-08 | Commonwealth Industrial Gases Limited, The | Improvements to precious metals recovery from ores |
AU4184297A (en) * | 1996-08-26 | 1998-03-19 | Geochem Technologies, Inc. | Leaching of metal chalcogenide (sulfide-type) minerals with oxidizing and chelating agents |
-
2004
- 2004-10-07 US US10/960,527 patent/US7004326B1/en active Active
-
2005
- 2005-07-12 AU AU2005291783A patent/AU2005291783B2/en not_active Ceased
- 2005-07-12 RU RU2007116962/03A patent/RU2366514C2/en not_active IP Right Cessation
- 2005-07-12 WO PCT/CA2005/001075 patent/WO2006037206A1/en active Application Filing
- 2005-07-12 ZA ZA200702686A patent/ZA200702686B/en unknown
- 2005-07-12 CA CA2582953A patent/CA2582953C/en not_active Expired - Fee Related
- 2005-07-12 BR BRPI0516117-7A patent/BRPI0516117A/en not_active Application Discontinuation
- 2005-07-12 MX MX2007003955A patent/MX2007003955A/en active IP Right Grant
-
2007
- 2007-04-05 FI FI20070270A patent/FI121737B/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
RU2007116962A (en) | 2008-11-20 |
WO2006037206A1 (en) | 2006-04-13 |
MX2007003955A (en) | 2008-03-04 |
RU2366514C2 (en) | 2009-09-10 |
ZA200702686B (en) | 2008-11-26 |
FI20070270A (en) | 2007-04-05 |
AU2005291783B2 (en) | 2009-05-28 |
FI121737B (en) | 2011-03-31 |
CA2582953C (en) | 2011-11-08 |
US7004326B1 (en) | 2006-02-28 |
BRPI0516117A (en) | 2008-08-26 |
AU2005291783A1 (en) | 2006-04-13 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
EEER | Examination request | ||
MKLA | Lapsed |
Effective date: 20200831 |