CN101722112A - Process for performing sulfide ore flotation by using liquid carbon dioxide - Google Patents
Process for performing sulfide ore flotation by using liquid carbon dioxide Download PDFInfo
- Publication number
- CN101722112A CN101722112A CN201010300222A CN201010300222A CN101722112A CN 101722112 A CN101722112 A CN 101722112A CN 201010300222 A CN201010300222 A CN 201010300222A CN 201010300222 A CN201010300222 A CN 201010300222A CN 101722112 A CN101722112 A CN 101722112A
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- CN
- China
- Prior art keywords
- flotation
- carbon dioxide
- sulfide
- ore
- liquid carbon
- 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
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- 238000005188 flotation Methods 0.000 title claims abstract description 67
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title claims abstract description 47
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 title claims abstract description 32
- 239000001569 carbon dioxide Substances 0.000 title claims abstract description 23
- 229910002092 carbon dioxide Inorganic materials 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title abstract description 18
- 238000002309 gasification Methods 0.000 claims abstract description 10
- 230000002209 hydrophobic effect Effects 0.000 claims abstract description 6
- 238000005516 engineering process Methods 0.000 claims description 11
- 239000002245 particle Substances 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 4
- 239000011707 mineral Substances 0.000 abstract description 4
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 abstract description 2
- 230000002411 adverse Effects 0.000 abstract 1
- 238000003889 chemical engineering Methods 0.000 abstract 1
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 6
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 3
- 229910052569 sulfide mineral Inorganic materials 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 235000003642 hunger Nutrition 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000037351 starvation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000005587 bubbling Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 230000001818 nuclear effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000004760 silicates Chemical class 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 150000004763 sulfides Chemical class 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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Abstract
The invention discloses a process for performing sulfide ore flotation by using liquid carbon dioxide. The process aims at the problems that in the sulfide ore flotation, because sulfide ores are easy to be crushed and overground and air bubbles can collide with mineral grains of the sulfide ores difficultly, the flotation and collection effects are not good. The flotation process adopting the liquid carbon dioxide comprises the following steps of: introducing the liquid carbon dioxide (1) together with a flotation pulp entering from an air inlet (4) and a feed opening (5) into a flotation column (3) through a pressure reducing valve (2); performing carbon dioxide gasification; growing air bubbles on the surfaces of hydrophobic ore grains; and performing adverse impact with the air bubbles generated by a magnetic bubble generator (6) in the flotation column (3) so as to achieve the flotation of sulphide. The method achieves that ore pulp is mineralized sufficiently and evenly in the flotation column, has enough flotation time, large air bubble quantity, superfine sizes, uniform dispersion, good flotation and collecting effect, no pollution and the like, and the method can be used in the fields of metal mines, chemical engineering, environmental protection and the like.
Description
Technical field
The present invention relates to a kind of method that carbon dioxide is used for sulfide flotation technology, be meant especially and a kind of liquid CO 2 fed in the sulfide flotation ore pulp, the bubble that utilizes the magnetic force bubble generator to produce, in flotation column, realize the new method of sulfide flotation, belong to the comprehensive utilization of resources technical field.
Background technology
Carbon dioxide (CO
2) as a kind of common gas cheap because its wide material sources, chemism very a little less than, can be used as protective gas, be applied to technical fields such as metallurgy, chemical industry.In the sulfide flotation field, carbon dioxide itself can be used as floating agent and is used to adjust the sulfide flotation ore pulp, and in the sulfide flotation of some easy oxidation, carbon dioxide can be used as protective gas, plays the effect of starvation.But in present floatation process both domestic and external, the method research that carbon dioxide is used for floatation process seldom.
Flotation column is as a kind of new and effective floatation equipment, will be after the development trend and the direction of floatation process, and urgent problem is exactly the problem of the abundant mineralising of ore pulp in the flotation column process.General flotation column all is to carry out mineralising at the bubble that flotation cylinder inner utilization foam maker produces at present, causes mineralising inhomogeneous easily, and flotation time waits influence inadequately.In case and problems such as obstruction, wearing and tearing appear in foam maker, the maintenance of flotation column just bothers very much.Discover that now the gas of liquefaction is when gasification, needing nucleus could produce, and gas nuclear effect phenomenon is applied in the floatation process, is one and has very significant research field.
Summary of the invention
Technical problem to be solved by this invention provides and a kind ofly realizes that in flotation column the abundant mineralising of ore pulp is even, the technology of the performing sulfide ore flotation by using liquid carbon dioxide that flotation time is enough.
In order to solve the problems of the technologies described above, the technology of performing sulfide ore flotation by using liquid carbon dioxide provided by the invention utilizes liquid CO 2 to add in the sulfide flotation ore pulp by pressure-reducing valve, realizes sulfide flotation in flotation column.
Liquid CO 2 feeds in the flotation column with the flotation pulp that enters by charging aperture through air inlet by pressure-reducing valve, carbon dioxide gasification, grow bubble on hydrophobic ore particle surface, the bubble that produces with foam device in flotation column carries out reverse-impact, realizes sulfide flotation.
Described foam device is the magnetic force bubble generator.
Adopt the technology of the performing sulfide ore flotation by using liquid carbon dioxide of technique scheme, by pressure-reducing valve liquid CO 2 is fed in the flotation column through the flotation pulp that air inlet enters with charging aperture, because liquid CO 2 needs gasification under normal temperature, normal pressure, during gasification the gasification core must be arranged, hydrophobic ore particle just in time provides nucleus for the gasification of carbon dioxide in the flotation column, carbon dioxide is in the surface gasification of hydrophobic ore particle like this, produce the carbon dioxide microvesicle, selectivity mineralising purpose mineral.And the bubble that produces with the magnetic force bubble generator in flotation column carries out the reverse-impact collecting, realizes the floatation process of sulphide ore.And in sulfide flotation technology, because the very easily oxidation of some sulphide ore, and the also more or less freely oxidation of some sulfide mineral collector are when the bubbling air flotation, contained oxygen makes the sulfide mineral oxidation after collecting agent is handled easily in the air, worsens flotation collecting effect.And utilize carbon dioxide to carry out sulfide flotation, and can form protective gas at the mineralising particle surface, starvation guarantees that the mineralising particle is not oxidized, improves flotation effect.
In sum, the present invention has that the mineralising effect is very high, the bubble disperse is even, energy consumption is low, is difficult for stopping up, pollution-free, strengthen advantage such as flotation collecting, can be used for metal mine, chemical, fields such as environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present invention.
The specific embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, liquid CO 21 feeds in the flotation column 3 with the flotation pulp that enters by charging aperture 5 through air inlet 4 by pressure-reducing valve 2, liquid CO 21 gasification, grow bubble on hydrophobic ore particle surface, the bubble that produces with magnetic force bubble generator 6 in flotation column 3 carries out reverse-impact, realizes sulfide flotation.
Adopt method of the present invention, the Hunan sulphide ore is selected sulfur test.This sulphide ore is the mine tailing after the plumbous zinc flotation, and essential mineral is a troilite, comprises pyrite, magnetic iron ore etc., and gangue mineral is mainly carbonate and silicates mineral.The ore pulp mass concentration is 32～34% during flotation, adopt ethyl xanthogenate as sulfide mineral collector, feed in the flotation column 3 with liquid CO 21 after fully sizing mixing, open 6 inflations of magnetic force bubble generator and carry out flotation, after one thick one single-minded operation of sweeping, can obtain good result of the test.Concrete test index such as following table:
Certain sulfide flotation index contrast of table 1
The concentrate sulphur grade/% concentrate rate of recovery/%
Traditional handicraft 39.61 79.63
CO
2Method 42.15 83.54
Claims (3)
1. the technology of a performing sulfide ore flotation by using liquid carbon dioxide is characterized in that: utilize liquid CO 2 (1) to add in the sulfide flotation ore pulp by pressure-reducing valve (2), realize sulfide flotation in flotation column (3).
2. the technology of performing sulfide ore flotation by using liquid carbon dioxide according to claim 1, it is characterized in that: liquid CO 2 (1) feeds in the flotation column (3) with the flotation pulp that enters by charging aperture (5) through air inlet (4) by pressure-reducing valve (2), carbon dioxide gasification, grow bubble on hydrophobic ore particle surface, the bubble that produces with foam device in flotation column (3) carries out reverse-impact, realizes sulfide flotation.
3. the technology of performing sulfide ore flotation by using liquid carbon dioxide according to claim 2, it is characterized in that: described foam device is magnetic force bubble generator (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010300222 CN101722112B (en) | 2010-01-12 | 2010-01-12 | Process for performing sulfide ore flotation by using liquid carbon dioxide |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010300222 CN101722112B (en) | 2010-01-12 | 2010-01-12 | Process for performing sulfide ore flotation by using liquid carbon dioxide |
Publications (2)
| Publication Number | Publication Date |
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| CN101722112A true CN101722112A (en) | 2010-06-09 |
| CN101722112B CN101722112B (en) | 2013-02-13 |
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| CN 201010300222 Expired - Fee Related CN101722112B (en) | 2010-01-12 | 2010-01-12 | Process for performing sulfide ore flotation by using liquid carbon dioxide |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652927A (en) * | 2012-03-21 | 2012-09-05 | 南京银茂铅锌矿业有限公司 | Beneficiation method of iron pyrite in lead-zinc flotation tailings |
| CN103934117A (en) * | 2014-05-07 | 2014-07-23 | 广西中金岭南矿业有限责任公司 | Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns |
| CN106669981A (en) * | 2016-06-20 | 2017-05-17 | 中国矿业大学 | Oxidized coal slime separation method based on CO2 air bubbles |
| CN106733205A (en) * | 2016-12-11 | 2017-05-31 | 南京银茂铅锌矿业有限公司 | The Efficient beneficiation method of troilite in lead zinc flotation tailing |
| CN107127204A (en) * | 2016-02-26 | 2017-09-05 | 蒋本基 | The method and system of different-grain diameter solid waste stabilization |
| CN108452941A (en) * | 2018-02-07 | 2018-08-28 | 中南大学 | A kind of method for floating of bauxite |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4411991A1 (en) * | 1994-04-11 | 1995-10-12 | Hoechst Ag | Method and device for separating suspended substances from liquids |
| US6210648B1 (en) * | 1996-10-23 | 2001-04-03 | Newmont Mining Corporation | Method for processing refractory auriferous sulfide ores involving preparation of a sulfide concentrate |
| CN1295363C (en) * | 2005-03-16 | 2007-01-17 | 深圳市伟雄机械设备有限公司 | Poisonless extracting and refining method for noble metals |
| CN100542679C (en) * | 2007-04-09 | 2009-09-23 | 云南省化工研究院 | A kind of method of demagging from phosphate ore |
| CN101306398A (en) * | 2007-05-15 | 2008-11-19 | 上海大屯能源股份有限公司 | Microbubble swirl separation method and divice |
| CN101362118B (en) * | 2008-09-17 | 2012-01-11 | 中南大学 | Flotation column pulp quadric mineralising method |
-
2010
- 2010-01-12 CN CN 201010300222 patent/CN101722112B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102652927A (en) * | 2012-03-21 | 2012-09-05 | 南京银茂铅锌矿业有限公司 | Beneficiation method of iron pyrite in lead-zinc flotation tailings |
| CN103934117A (en) * | 2014-05-07 | 2014-07-23 | 广西中金岭南矿业有限责任公司 | Technology for flotation of lead and zinc sulfide ores through inflatable floatation columns |
| CN103934117B (en) * | 2014-05-07 | 2016-09-07 | 广西中金岭南矿业有限责任公司 | The technique of pneumo type flotation post flotation Lead-zinc mine tailings |
| CN107127204A (en) * | 2016-02-26 | 2017-09-05 | 蒋本基 | The method and system of different-grain diameter solid waste stabilization |
| CN107127204B (en) * | 2016-02-26 | 2019-08-16 | 蒋本基 | The method and system of different-grain diameter solid waste stabilization |
| CN106669981A (en) * | 2016-06-20 | 2017-05-17 | 中国矿业大学 | Oxidized coal slime separation method based on CO2 air bubbles |
| CN106733205A (en) * | 2016-12-11 | 2017-05-31 | 南京银茂铅锌矿业有限公司 | The Efficient beneficiation method of troilite in lead zinc flotation tailing |
| CN108452941A (en) * | 2018-02-07 | 2018-08-28 | 中南大学 | A kind of method for floating of bauxite |
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| CN101722112B (en) | 2013-02-13 |
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Application publication date: 20100609 Assignee: YUNNAN ZHONGJIN GONGHE RESOURCES CO.,LTD. Assignor: Central South University Contract record no.: 2015430000065 Denomination of invention: Process for performing sulfide ore flotation by using liquid carbon dioxide Granted publication date: 20130213 License type: Exclusive License Record date: 20150605 |
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