CN107694760A - Suppress the joint medicament of flotation of pyrite - Google Patents
Suppress the joint medicament of flotation of pyrite Download PDFInfo
- Publication number
- CN107694760A CN107694760A CN201710869021.0A CN201710869021A CN107694760A CN 107694760 A CN107694760 A CN 107694760A CN 201710869021 A CN201710869021 A CN 201710869021A CN 107694760 A CN107694760 A CN 107694760A
- Authority
- CN
- China
- Prior art keywords
- pyrite
- flotation
- copper
- ore
- chalcopyrite
- 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.)
- Pending
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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
- 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
- B03D2203/04—Non-sulfide ores
Abstract
The present invention relates to a kind of joint medicament for suppressing flotation of pyrite, belong to beneficiation inhibitor.By following weight than raw material form：Na2SO3：CaO=1：1.The inhibitor that the present invention solves current chalcopyrite, pyrite separating flotation uses has the problem of pollution and separating effect are bad to environment containing toxic, is separated suitable for Copper sulfide ore diffeential floatation, and copper-sulfide mixed concentrate.
Description
Technical field
The present invention relates to beneficiation inhibitor, and in particular to suppresses the combined depressant of flotation of pyrite, be particularly suitable for use in copper
Sulphur separating flotation.
Background technology
Copper is the metal that the mankind have found earliest, is a kind of widely used metal of the mankind, belongs to heavy metal.When prehistory
Generation, people begin to the outdoor copper mine of digging, and are made weapons with the copper obtained, formula tool and other vessel, and the use of copper is to early stage
The advancements affect of human civilization is far-reaching.Copper is a kind of metal being present in the earth's crust and ocean, and content of the copper in the earth's crust is about
0.01%, in indivedual copper deposits, the content of copper can reach 3% ~ 5%.Copper in nature, majority are copper mineral with compound
In the presence of.Copper mineral, into Copper Ores, such as chalcopyrite, vitreous copper, bornite, cuprite and malachite, is opened with other mineral associations
The Copper Ores that extraction comes, turn into the higher copper concentrate of cupric grade by ore dressing.
In generation, is known dawn to sulphur in the time immemorial.About before 4000, Egyptian can be formed with combustion of sulfur
Sulfur dioxide carry out bleached goods, ancient Greece and Rome people also expertly can come fumigation and bleaching using sulfur dioxide.
B.C. nineth century, ancient Roman famous poet Homer play the role of to sterilize and bleached when teaching combustion of sulfur in his works.
It often occurs in the form of sulfide or sulfate in nature, and especially in Volcanic Region, pure sulphur also goes out in nature
It is existing.Sulphur is distributed more widely in nature, and content is 0.048% in the earth's crust.
Shallow crust structures flotation mainly has three kinds of schemes：
1st, calcium oxide method：Suppress pyrite in strongly basic medium caused by calcium oxide, be used for pyrite etc. and be easier to press down
The ore of system.
2nd, calcium oxide+cyanide process：It is larger suitable for pyrite activity, it is not easy to be oxidized calcium and suppress, after suppression
Pyrite can take the method for reducing pH value and addition copper sulphate to be activated.
3rd, heating method：For the copper sulphur mixed ore of hardly possible separation, heating can accelerate pyrite surface to aoxidize, suppress yellow iron
Ore deposit.
Shallow crust structures flotation flowsheet can be attributed to following five kinds：
1st, flotation flowsheet is directly separated, suitable for the very high block cupriferous pyrite of sulfur-bearing, after ore is finely ground, suppresses yellow iron
Ore deposit, flotation chalcopyrite, mine tailing are iron concentrate, are mainly used in copper-sulfide mixed concentrate separation.
2nd, selective flotation flowsheet, when sulfur-bearing is relatively low in block cupriferous pyrite, can not be drawn with flotation flowsheet is directly separated
During qualified iron concentrate, chalcopyrite, then flotation pyrite are first floatingly selected, this flow can also be used by infecting the Copper sulfide ore of shape.
3rd, mixing-selective flotation flowsheet, suitable for infecting shape Copper sulfide ore, grinding particle size compared with it is thick, pulp alkalinity is relatively low
Under conditions of, copper-sulfide mixed concentrate is first floatingly selected, inhibitor progress bulk concentrate is then added and regrinds, press down in high alkalinity ore pulp
Manufacture-yellow iron ore, flotation chalcopyrite.
4th, silt-selective flotation flowsheet.Copper sulfide ore is after ore grinding, if ore in sand form part sulfur-bearing is sufficiently high, and big portion
Sectors stone is enriched in thin mud, can reduce influence of the sludge to copper mineral flotation with this flow, while be advantageous to iron concentrate
Quality.
5th, it is dressing and smelting united, it is serious suitable for ore oxidation, containing the more Copper sulfide ore of cupric oxide, ore reduction is arrived
Carry out desliming afterwards to a certain degree, sludge replaces the copper ion in liquid phase after separation of solid and liquid, with sponge iron, or is handed over ion
Change-reclaim liquid phase such as Extraction electrodeposition method in copper ion, the ore in sand form after washup carries out flotation.
The inhibitor that prior art is used chalcopyrite, pyrite separating flotation containing toxic, have to environment pollution and
Separating effect is bad.
The content of the invention
The present invention provides a kind of joint medicament for suppressing flotation of pyrite, and to solve current chalcopyrite, pyrite separation is floated
Select the inhibitor used to contain toxic, there is the problem of pollution and separating effect are bad to environment, it is preferential suitable for Copper sulfide ore
Flotation, and copper-sulfide mixed concentrate separation.
The present invention adopts the technical scheme that：By following weight than raw material form：
Na2SO3：CaO=1：1.
The principle of the present invention：In alkalinity pulp caused by calcium oxide, pyrite can be suppressed, brass can also be suppressed
Ore deposit.Before addition forms strong basicity, sodium sulfite is added, while activation to chalcopyrite use, pyrite is carried out
It is preliminary to suppress, calcium oxide alkali tune is being carried out, pyrite is being suppressed again, then using high-efficient collecting agent, is carrying out flotation.
The present invention has the advantage of three aspects in shallow crust structures flotation：
1st, solving suppression of the calcium oxide method strong basicity to chalcopyrite, strong basicity has good inhibition to pyrite, but
It is also to have inhibitory action to chalcopyrite.
2nd, have without calcium oxide+pollution problem of the cyanide process cyanide toxicity to environment, calcium oxide+cyaniding to pyrite
There is strong inhibition, but the toxicity of cyanide has pollution to environment.
3rd, heating method is not easily solved to ore pulp heat dissipation problem in production, and ore pulp is in flow process is produced, and temperature is very
It is readily volatilized to go out, and ore pulp does not produce heat in itself, keeps slurry temperature, and production is not easily accomplished very much.
Brief description of the drawings
Fig. 1 is the shallow crust structures method for floating flow chart using the present invention.
Embodiment
By following weight than raw material form：Na2SO3：CaO=1：1.
Below in conjunction with accompanying drawing, technical scheme is discussed in detail：
Ore properties：Metalliferous mineral in ore is pyrite, chalcopyrite, magnetic iron ore, zincblende, tetrahedrite, vitreous copper, magnetic
Iron ore, bloodstone, limonite etc., nonmetallic mineral are mainly quartz, glassy feldspar, orthoclase, plagioclase, chlorite, magnalium pomegranate
Stone, almandine, hedenbergite, calcite, dolomite, barite, wollastonite etc..Ore technological type is that moderate sulfur compound is former
Pig copper ore.
The ore mineral relative amount measurement result of table 1
The ore major metal sulfide is chalcopyrite, pyrite, and metal oxide is magnetic iron ore, bloodstone, other metallic ores
Thing content is less.
Implementing procedure explanation：
As shown in figure 1, raw ore after ore grinding, is sized mixing to finite concentration, Na is first added2SO3, stir 10 minutes, then add
CaO is stirred 10 minutes, is added after Z-200 is stirred 5 minutes and is carried out air flotation 4 minutes, obtains rough concentrate, rough concentrate is by three times
It is selected, copper concentrate is obtained, mine tailing obtains mine tailing by scanning three times, and single-minded tail returns to roughing with sweeping an essence, and smart two tails return smart
One is selected, smart three tails return to selected two, sweep two essence returns and scan one, sweep three smart return and scan two, form closed circuit flotation.By above-mentioned stream
Journey is completed, as a result as follows：
The shallow crust structures flotation closed-circuit test result of table 2
Claims (1)
- A kind of 1. joint medicament for suppressing flotation of pyrite, it is characterised in that：By following weight than raw material form： Na2SO3：CaO=1：1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869021.0A CN107694760A (en) | 2017-09-22 | 2017-09-22 | Suppress the joint medicament of flotation of pyrite |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710869021.0A CN107694760A (en) | 2017-09-22 | 2017-09-22 | Suppress the joint medicament of flotation of pyrite |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107694760A true CN107694760A (en) | 2018-02-16 |
Family
ID=61174348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710869021.0A Pending CN107694760A (en) | 2017-09-22 | 2017-09-22 | Suppress the joint medicament of flotation of pyrite |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107694760A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701753A (en) * | 2019-01-03 | 2019-05-03 | 北京矿冶科技集团有限公司 | A kind of inhibitor and beneficiation method of high-sulfur hard-processing copper sulfur ores |
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| CN102423728A (en) * | 2011-11-24 | 2012-04-25 | 昆明理工大学 | Flotation method for copper-containing nickel sulfide ore |
| CN103350033A (en) * | 2013-06-29 | 2013-10-16 | 西北矿冶研究院 | Mineral separation method for separating chalcopyrite from galena, sphalerite and pyrite |
| CN103691569A (en) * | 2013-12-11 | 2014-04-02 | 西北矿冶研究院 | Flotation method for high-sulfur gold-bearing copper ore |
| CN103861740A (en) * | 2014-03-25 | 2014-06-18 | 中南大学 | Method for flotation separation of copper sulfide and lead concentrate processed through pre-oxidation |
| CN105689146A (en) * | 2016-03-07 | 2016-06-22 | 紫金矿业集团股份有限公司 | Low-alkalinity flotation separation method for pyrite activated by Cu2+ and chalcocite |
-
2017
- 2017-09-22 CN CN201710869021.0A patent/CN107694760A/en active Pending
Patent Citations (7)
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| CN101069875A (en) * | 2007-06-12 | 2007-11-14 | 长春黄金研究院 | Composite inhibitor for inhibiting arsenic ore floatation |
| CN101596494A (en) * | 2008-06-04 | 2009-12-09 | 李德明 | Inhibitor |
| CN102423728A (en) * | 2011-11-24 | 2012-04-25 | 昆明理工大学 | Flotation method for copper-containing nickel sulfide ore |
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| CN103691569A (en) * | 2013-12-11 | 2014-04-02 | 西北矿冶研究院 | Flotation method for high-sulfur gold-bearing copper ore |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109701753A (en) * | 2019-01-03 | 2019-05-03 | 北京矿冶科技集团有限公司 | A kind of inhibitor and beneficiation method of high-sulfur hard-processing copper sulfur ores |
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