CN107442290A - The method that lead concentrate is separated from ore - Google Patents
The method that lead concentrate is separated from ore Download PDFInfo
- Publication number
- CN107442290A CN107442290A CN201710640656.3A CN201710640656A CN107442290A CN 107442290 A CN107442290 A CN 107442290A CN 201710640656 A CN201710640656 A CN 201710640656A CN 107442290 A CN107442290 A CN 107442290A
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- China
- Prior art keywords
- ore
- galena
- concentrate
- ore pulp
- pyrite
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- 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.)
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- 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
- B03D1/004—Organic compounds
- B03D1/008—Organic compounds containing oxygen
-
- 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
- B03D2201/04—Frothers
-
- 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
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of method that lead concentrate is separated from ore, the ore includes galena, pyrite and marmatite, and methods described includes：(1) ore is subjected to wet ground, to obtain ore pulp；(2) ore pulp is mixed with inhibitor, collecting agent and foaming agent and carries out flotation processing, to obtain galena rough concentrate and mine tailing；(3) the galena rough concentrate is subjected to selected processing, to obtain lead concentrate.This method can make the grade of lead concentrate improve more than 68%, while cost is cheap, environmentally friendly, remarkable in economical benefits.
Description
Technical field
The invention belongs to lead concentrate to purify field, and specifically, the present invention relates to the method that lead concentrate is separated from ore.
Background technology
Pyrite and marmatite often also higher, the flotation flowsheet of such ore are general in vulcanized lead polymetallic ore
It is plumbum floatation-zinc flotation flowsheet or lead zinc bulk flotation-Pb-Zn separation flow, but because of galena, pyrite and marmatite
Natural floatability is close, and the collecting agent of galena generally there is stronger collecting to act on pyrite, marmatite, so typically
Lime can be used to suppress pyrite, zinc sulfate and sodium sulfite suppress the method floating selecting square lead ore of marmatite, in this way, used
The species of inhibitor is more, dosage is big；In addition, conventional inhibitor lime, zinc sulfate and sodium sulfite, particularly lime can other side
The flotation of lead ore causes necessarily to influence, and has a strong impact on the rate of recovery of galena.
Therefore, the existing technology that lead concentrate is separated from ore is further improved.
The content of the invention
It is contemplated that at least solves one of technical problem in correlation technique to a certain extent.Therefore, the present invention
One purpose is in a kind of method that lead concentrate is separated from ore of proposition.This method can make lead concentrate grade improve 68% with
On, while cost is cheap, environmentally friendly, remarkable in economical benefits.
In one aspect of the invention, the present invention proposes a kind of method that lead concentrate is separated from ore, the ore
Including galena, pyrite and marmatite, according to an embodiment of the invention, this method includes：
(1) ore is subjected to wet ground, to obtain ore pulp；
(2) ore pulp is mixed with inhibitor, collecting agent and foaming agent and carries out flotation processing, it is thick to obtain galena
Concentrate and tailings；
(3) the galena rough concentrate is subjected to selected processing, to obtain lead concentrate.
The method that lead concentrate is separated from ore according to embodiments of the present invention, by using can Absorptive complex wave in pyrite
Suppression with surface of marmatite, simultaneously containing the group that can make the mineral surfaces such as pyrite and marmatite one layer of hydrophilic film of formation
Preparation, the absorption of collecting agent and foaming agent in pyrite and surface of marmatite is prevented, increases pyrite and surface of marmatite
Hydrophily, pyrite and marmatite is suppressed and is adsorbed less amount of collecting agent and foaming agent, and collecting agent and rise
Infusion preferentially in galena adsorption, adds the hydrophobicity of galena, and then expands galena and suppressed mineral ---
The difference of the floatability of pyrite and marmatite, is finally reached the purpose for isolating lead concentrate.
In addition, the method according to the above embodiment of the present invention that lead concentrate is separated from ore can also have following add
Technical characteristic：
In some embodiments of the invention, in step (1), the mass concentration of the ore pulp is 20-70wt%.By
This, is advantageous to improve the grade of lead concentrate.
In some embodiments of the invention, in step (1), the particle diameter of ore is no more than 0.074 milli in the ore pulp
The accounting 50-90% of rice.Thus, it can further improve the grade of lead concentrate.
In some embodiments of the invention, in step (2), the ore pulp and the inhibitor, the collecting agent and
The foaming agent is according to mass ratio 100000：(1~30)：(1~20)：(1~15) is mixed.Thus, can further improve
The grade of lead concentrate.
In some embodiments of the invention, in step (2), the inhibitor is selected from sodium thioglycolate and sulfydryl second
At least one of acid.Thus, it can further improve the grade of lead concentrate.
In some embodiments of the invention, in step (2), the collecting agent is selected from diethyldithiocarbamate, xanthate and black powder
At least one of.Thus, it can further improve the grade of lead concentrate.
In some embodiments of the invention, in step (2), the foaming agent is selected from methyl isobutyl carbinol and pine
At least one of alcohol oil.Thus, it can further improve the grade of lead concentrate.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the method flow schematic diagram according to an embodiment of the invention that lead concentrate is separated from ore.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In one aspect of the invention, the present invention proposes a kind of method that lead concentrate is separated from ore, the ore
Including galena, pyrite and marmatite, according to an embodiment of the invention, with reference to figure 1, this method includes：
S100：Ore is subjected to wet ground
In the step, ore is subjected to wet ground, to obtain ore pulp.Specifically, ore is mixed with water, and will be with
The mixed ore of water, which is delivered to, carries out ball-milling treatment in ball mill.Thus, the specific surface area of each composition in ore can be dramatically increased,
Be advantageous to improve the contact area of each composition and inhibitor, collecting agent and foaming agent in follow-up ore pulp, and then improve whole technique
Reaction rate.
According to one embodiment of present invention, the mass concentration of ore pulp is not particularly restricted, those skilled in the art
It can be selected according to being actually needed, according to the specific embodiment of the present invention, the mass concentration of ore pulp can be 20-
70wt%.Inventor has found, if the mass concentration of ore pulp is too low, the lead concentrate grade of gained can improve, but the rate of recovery will
It can reduce, while need more floatation equipments and consume more beneficiation reagents, cost significantly raises；And if the matter of ore pulp
Excessive concentration is measured, then the lead concentrate grade of gained will be reduced substantially.
According to still a further embodiment, the particle diameter of ore is not particularly restricted in ore pulp, the technology of this area
Personnel can be selected according to being actually needed, and according to the specific embodiment of the present invention, the particle diameter of ore can be with ore pulp
For the accounting 50-90% no more than 0.074 millimeter.Inventor has found, on the one hand single if the particle diameter of ore is excessive in ore pulp
The quality of mineral grain is larger, it tends to be difficult to is floated with foam；Another aspect mineral may be without abundant monomer dissociation, i.e., square lead
Ore deposit, marmatite, pyrite and gangue adhesion are wrapped, and cause galena, marmatite, pyrite and gangue separation tired
Hardly possible at all can not flotation；And if the particle diameter of ore is too small in ore pulp, galena granularity may be caused meticulous, flotation is stranded
Difficulty, lead recovery reduce.
S200：Ore pulp is mixed with inhibitor, collecting agent and foaming agent and carries out flotation processing
In the step, ore pulp is mixed with inhibitor, collecting agent and foaming agent and carries out flotation processing, to obtain galena
Rough concentrate and mine tailing.Specifically, first being mixed inhibitor and ore pulp, 2-6min is stirred, obtains liquid after the first mixing,
By collecting agent, after foaming agent mixes with first, liquid is mixed again, stirs 2-6min, obtains that pH value is 5.0-12.0
Liquid after two mixing, liquid after the second mixing is finally subjected to flotation 3-10min, obtains galena rough concentrate and mine tailing.Invention human hair
Existing, after the pyrite and marmatite monomer dissociation in ore pulp, surface can expose ferrous ion, and inhibitor can be complexed ferrous iron
Ion, i.e. inhibitor can be adsorbed on the surface of pyrite and marmatite by complexing, and by hydrophilic in inhibitor
Base makes to form one layer of hydrophilic film between pyrite and marmatite and inhibitor, prevents collecting agent and foaming agent in pyrite and iron
Zincblende adsorption, and galena, because being free of ferro element in molecule, surface will not also expose ferrous ion after monomer dissociation,
Therefore inhibitor is difficult to adsorb on galena surface, collecting agent and foaming agent are preferentially adsorbed on galena surface, thus, galena with
The floatability difference of pyrite and marmatite expands, and then can come out galena separation of rough concentrate.
According to one embodiment of present invention, the mixing quality ratio of ore pulp and inhibitor, collecting agent and foaming agent not by
Especially limitation, those skilled in the art can be selected according to being actually needed, according to the specific embodiment of the present invention,
Ore pulp can be according to mass ratio 100000 with inhibitor, collecting agent and foaming agent：(1~30)：(1~20)：(1~15) is mixed
Close.Inventor has found that if the mixing quality of ore pulp and inhibitor than too high, i.e. the dosage of inhibitor is less than normal, or ore pulp is with catching
Agent, the mixing quality of foaming agent are received than too low, i.e., collecting agent, the dosage of foaming agent are bigger than normal, and pyrite and marmatite float
Property improve, easily floated with galena, cause lead concentrate grade substantially to reduce, pyrite and iron dodge Zn content increase in lead concentrate,
Separating effect is deteriorated；If the mixing quality of ore pulp and inhibitor than too low, i.e. the dosage of inhibitor is bigger than normal, or ore pulp and collecting
Agent, the mixing quality of foaming agent are than too high, i.e., collecting agent, the dosage of foaming agent are less than normal, the floatability of pyrite and marmatite
It is deteriorated, the floatability of galena is also affected, and causes lead concentrate grade to significantly improve, and pyrite and iron dodge in lead concentrate
Zn content reduces, and the lead concentrate rate of recovery reduces, the increase of beneficiation reagent cost.Thus, using ore pulp of the present invention with suppressing
The grade that the mixing quality ratio of agent, collecting agent and foaming agent can improve lead concentrate can improve the rate of recovery of lead again.
According to still a further embodiment, the particular type of inhibitor is not particularly restricted, the technology of this area
Personnel can be selected according to being actually needed, and according to the specific embodiment of the present invention, inhibitor can be selected from sulfydryl
At least one of sodium acetate and TGA.Inventor has found that sulfydryl class inhibitor of the present invention can be complexed only
The ferrous ion just having after pyrite and marmatite monomer dissociation, and because it contains hydrophilic group COO-Can dodge pyrite and iron
One layer of hydrophilic film is formed between zinc ore and inhibitor, in this way, being advantageous to obtain galena rough concentrate.
According to still another embodiment of the invention, the particular type of collecting agent is not particularly restricted, the technology of this area
Personnel can be selected according to being actually needed, and according to the specific embodiment of the present invention, collecting agent can be selected from second sulphur
At least one of nitrogen, xanthate and black powder.Thus, optionally adsorb on galena surface, improve dredging for galena surface
Water degree, galena is set to be easy to adhere on bubble, so as to improve the floatability of galena.
According to still another embodiment of the invention, the particular type of foaming agent is not particularly restricted, the technology of this area
Personnel can be selected according to being actually needed, and according to the specific embodiment of the present invention, foaming agent can be selected from methyl
At least one of isobutyl carbinol and terpenic oil.Thus, the flotation of galena is advantageous to.
S300：Galena rough concentrate is subjected to selected processing
In the step, galena rough concentrate is subjected to selected processing, to obtain lead concentrate.It is specifically, thick to galena
Concentrate carry out 1-3 times it is selected, can obtain lead concentrate.Thus, the grade of lead concentrate can improve more than 68%.
The method that lead concentrate is separated from ore according to embodiments of the present invention, by using can Absorptive complex wave in pyrite
Suppression with surface of marmatite, simultaneously containing the group that can make the mineral surfaces such as pyrite and marmatite one layer of hydrophilic film of formation
Preparation, the absorption of collecting agent and foaming agent in pyrite and surface of marmatite is prevented, increases pyrite and surface of marmatite
Hydrophily, pyrite and marmatite is suppressed and is adsorbed less amount of collecting agent and foaming agent, and collecting agent and rise
Infusion preferentially in galena adsorption, adds the hydrophobicity of galena, and then expands galena and suppressed mineral ---
The difference of the floatability of pyrite and marmatite, is finally reached the purpose for isolating lead concentrate.
Below with reference to specific embodiment, present invention is described, it is necessary to which explanation, these embodiments are only to describe
Property, without limiting the invention in any way.
Embodiment 1
Inner Mongol controlling proposals, 14.96wt% containing Zn in lead rough concentrate ore, Pb 25.44wt%, pyrite
40.22%, ore is mixed with water, and will be delivered to the mixed ore of water and ball-milling treatment is carried out in ball mill, obtain quality
Concentration is 25wt%, ore pulp of the particle diameter no more than 0.074 millimeter of accounting 50-90%；Then first sodium thioglycolate and ore pulp are pressed
According to mass ratio 15：100000 are mixed, and are stirred 2-6min, are obtained liquid after the first mixing, then by collecting agent diethyldithiocarbamate, rise
Liquid is according to mass ratio 2 after infusion terpenic oil mixes with first：1.5：100000 are mixed, and are stirred 2-6min, are obtained pH
It is worth liquid after being mixed for the second of 5.0-12.0, liquid after the second mixing is then subjected to flotation 3-10min, obtains galena rough concentrate
And mine tailing；Galena rough concentrate is finally passed through into recleaning, obtains lead concentrate.The grade of lead concentrate improves 76.38%, lead essence
2.08wt% containing zinc in ore deposit, 3.27wt% containing pyrite.
Embodiment 2
Certain Canadian copper/lead/zinc ore mountain, 16.57wt% containing Zn in lead rough concentrate ore, Pb 12.36wt%, pyrite
51.12%, ore is mixed with water, and will be delivered to the mixed ore of water and ball-milling treatment is carried out in ball mill, obtain quality
Concentration is 33wt%, ore pulp of the particle diameter no more than 0.074 millimeter of accounting 50-90%；Then first sodium thioglycolate and ore pulp are pressed
According to mass ratio 12：100000 are mixed, and are stirred 2-6min, are obtained liquid after the first mixing, then by collecting agent xanthate, foaming
Liquid is according to mass ratio 8 after agent methyl isobutyl carbinol mixes with first：4：100000 are mixed, and are stirred 2-6min, are obtained
Liquid after to the second mixing that pH value is 5.0-12.0, then carries out flotation 3-10min by liquid after the second mixing, it is thick to obtain galena
Concentrate and tailings；Galena rough concentrate is finally passed through into triple cleaning, obtains lead concentrate.The grade of lead concentrate improves 68.68%,
4.15wt% containing zinc in lead concentrate, 7.66wt% containing pyrite.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or the spy for combining the embodiment or example description
Point is contained at least one embodiment or example of the present invention.In this manual, to the schematic representation of above-mentioned term not
Identical embodiment or example must be directed to.Moreover, specific features, structure, material or the feature of description can be with office
Combined in an appropriate manner in one or more embodiments or example.In addition, in the case of not conflicting, the skill of this area
Art personnel can be tied the different embodiments or example and the feature of different embodiments or example described in this specification
Close and combine.
Although embodiments of the invention have been shown and described above, it is to be understood that above-described embodiment is example
Property, it is impossible to limitation of the present invention is interpreted as, one of ordinary skill in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, changed, replacing and modification.
Claims (7)
1. a kind of method that lead concentrate is separated from ore, the ore include galena, pyrite and marmatite, its feature
It is, methods described includes：
(1) ore is subjected to wet ground, to obtain ore pulp；
(2) ore pulp is mixed with inhibitor, collecting agent and foaming agent and carries out flotation processing, to obtain galena rough concentrate
And mine tailing；
(3) the galena rough concentrate is subjected to selected processing, to obtain lead concentrate.
2. according to the method for claim 1, it is characterised in that in step (1), the mass concentration of the ore pulp is 20-
70wt%.
3. according to the method for claim 1, it is characterised in that in step (1), the particle diameter of ore is little in the ore pulp
In 0.074 millimeter of accounting 50-90%.
4. according to the method for claim 1, it is characterised in that in step (2), the ore pulp and the inhibitor, institute
Collecting agent and the foaming agent are stated according to mass ratio 100000：(1~30)：(1~20)：(1~15) is mixed.
5. according to the method for claim 4, it is characterised in that in step (2), the inhibitor is selected from TGA
At least one of sodium and TGA.
6. according to the method for claim 4, it is characterised in that in step (2), the collecting agent be selected from diethyldithiocarbamate,
At least one of xanthate and black powder.
7. according to the method for claim 4, it is characterised in that in step (2), the foaming agent is selected from methyl tert-butyl
At least one of base methanol and terpenic oil.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640656.3A CN107442290A (en) | 2017-07-31 | 2017-07-31 | The method that lead concentrate is separated from ore |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710640656.3A CN107442290A (en) | 2017-07-31 | 2017-07-31 | The method that lead concentrate is separated from ore |
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| CN107442290A true CN107442290A (en) | 2017-12-08 |
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| CN201710640656.3A Pending CN107442290A (en) | 2017-07-31 | 2017-07-31 | The method that lead concentrate is separated from ore |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647628A (en) * | 2019-01-28 | 2019-04-19 | 中南大学 | Application of the 1,3,4- thiadiazole compound in sulfide flotation |
| CN112403683A (en) * | 2020-10-29 | 2021-02-26 | 中南大学 | P-Ph-SO2Use of generic compounds in mineral flotation |
| CN113182080A (en) * | 2021-05-10 | 2021-07-30 | 吉林省冶金研究院 | Flotation combined inhibitor for gold-lead separation and gold-lead separation method |
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| CN103203288A (en) * | 2013-04-11 | 2013-07-17 | 北京矿冶研究总院 | Method for flotation of lead sulfide ore |
| CN106423572A (en) * | 2016-11-30 | 2017-02-22 | 长春黄金研究院 | Lead zinc ore flotation method adopting novel combined inhibitor |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647628A (en) * | 2019-01-28 | 2019-04-19 | 中南大学 | Application of the 1,3,4- thiadiazole compound in sulfide flotation |
| CN112403683A (en) * | 2020-10-29 | 2021-02-26 | 中南大学 | P-Ph-SO2Use of generic compounds in mineral flotation |
| CN112403683B (en) * | 2020-10-29 | 2022-02-15 | 中南大学 | P-Ph-SO2Use of generic compounds in mineral flotation |
| CN113182080A (en) * | 2021-05-10 | 2021-07-30 | 吉林省冶金研究院 | Flotation combined inhibitor for gold-lead separation and gold-lead separation method |
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Application publication date: 20171208 |
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| RJ01 | Rejection of invention patent application after publication |