CN107138270A - A kind of fine grain teeth cloth Copper Ores floatation process - Google Patents
A kind of fine grain teeth cloth Copper Ores floatation process Download PDFInfo
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- CN107138270A CN107138270A CN201710260545.XA CN201710260545A CN107138270A CN 107138270 A CN107138270 A CN 107138270A CN 201710260545 A CN201710260545 A CN 201710260545A CN 107138270 A CN107138270 A CN 107138270A
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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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- 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
-
- 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
-
- 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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of fine grain teeth cloth Copper Ores floatation process, using Stage grinding separation technology, by quick selected and regrind and sweep the selected copper mineral to different dissociated states and handle recovery respectively；Using lime as pH values of pulp regulator, using butyl xanthate and butyl ammonium aerofloat as collecting agent, using MIBC as foaming agent, and add lime and part collecting agent in grinding machine, selective collecting of the collecting agent to copper is acted under the suitable alkalinity scope caused using lime, ensure the rate of recovery and grade of copper, the silicone content in concentrate is limited again, be particularly suitable for handling fine and complicated with the embedding cloth relation of the silicates affectionately stone copper sulfide ore of disseminated grain size.The method of the present invention can provide reliable technique of preparing guarantee for the exploitation of such copper ore resource, and its Efficient Development can be promoted to utilize.
Description
Technical field
The present invention relates to metallic ore technical field of beneficiation, more particularly to a kind of fine grain teeth cloth Copper Ores floatation process.
Background technology
Fine disseminated grain size is one of main feature of refractory copper ore, is also one of difficult point of its ore dressing.Such as certain deposition
Lithotype Layered Copper Ore Deposit is ultra-large type, high-grade secondary copper sulfide mineral deposit, and copper mineral is in mainly vitreous copper, covellite and spot in ore
Copper mine form is present and complicated with the embedding cloth relation of other gangue minerals, and monomer dissociation granularity is fine.Copper sulfide mineral in ore
Particle mean size is 0.005~0.03mm, and the granularity with the adhesion of silicate gangue or inclusion enclave is even more to be less than 0.01mm, improves dissociation
The possibility of degree is limited.In addition, gangue mineral is mainly quartz, orthoclase, muscovite, chlorite and ferriferous oxide etc., it is such
Gangue mineral is easily floated and easy argillization, can be caused flotation environmental degradation, be had a strong impact on separating effect and concentrate quality.
Fine grain teeth cloth Copper Ores are fine because of disseminated grain size, comminution dissociate during, quartz, orthoclase, muscovite,
The gangue such as chlorite and ferriferous oxide is grated therewith, and such gangue mineral is easily floated and easy argillization, can cause flotation environmental degradation,
Separating effect and concentrate quality are had a strong impact on, such ore is handled using conventional flotation technique and floating agent, it is difficult to obtain
Separation index, not only the concentrate rate of recovery is low, and the siliceous height of copper concentrate, to Copper making production bring difficulty, cause concentrate to be difficult to
Sale.
The content of the invention
It is an object of the invention to overcome the shortcomings of prior art presence, there is provided a kind of fine grain teeth cloth Copper Ores flotation work
Skill, is particularly suitable for handling fine and complicated with the embedding cloth relation of the silicates affectionately stone copper sulfide ore of disseminated grain size, can be should
The exploitation of class copper ore resource provides reliable technique of preparing guarantee, and its Efficient Development can be promoted to utilize.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of fine grain teeth cloth Copper Ores floatation process, comprises the following steps：
Ith, roughing：The raw ore for being crushed to -2mm is fed into rod mill and carries out ore grinding, based on raw ore dry weight per ton, in rod milling
Addition 900~1100g/t of Calcium Oxide Dosage in machine, and butyl xanthate and each 25~35g/t of butyl ammonium aerofloat consumption, are milled to rod milling
Machine discharges the mog of ore pulp and accounts for 85~87% for -0.053mm, and slurry pH is 9.8~10.0, and ore pulp is fed into flotation
Machine, addition butyl xanthate and each 25~35g/t of butyl ammonium aerofloat consumption, stir 1~3 minute, then add MIBC (methyl-isobutyls
Methanol) 10~15g/t of consumption, stirs 0.5~2 minute, carries out roughing, rougher concentration enters quick selected one, and rougher tailings enters
Enter to scan；
IIth, scan：Butyl xanthate and each 8~15g/t of butyl ammonium aerofloat consumption are added in rougher tailings, 1~3 point is stirred
Clock, then MIBC 4~10g/t of consumption are added, stir 0.5~2 minute, scanned, sieved to scanning mine tailing, scan chats
Into sweeping selected one；
IIIth, quick selected one：Without any medicament in rougher concentration, floatation concentration 10~15% is controlled, is carried out fast
Speed selected one, a quick selected concentrate enters quick selected two, and a quick selected mine tailing, which enters, sweeps selected one；
IVth, quick selected two：Without any medicament in a quick selected concentrate, floatation concentration 10~15% is controlled,
Quick selected two are carried out, quick selected two concentrate is the fast concentrate selection of high-grade, quick selected two mine tailing, which enters, sweeps selected one；
Vth, mine tailing screening is scanned：Sieved using 270 mesh standard sieves to scanning mine tailing ,+0.053mm coarse fractions on sieve
Abandoned into -0.053mm fine fractions under selected one, sieve are swept as mine tailing；
VIth, selected one is swept：By scan chats, a quick selected mine tailing, quick selected two mine tailing and scan mine tailing+
0.053mm coarse fractions, which are concentrated, feeds sand mill progress ore grinding, and 180~250g/t of lime consumption and waterglass are added in sand mill
80~150g/t of consumption, is milled to sand mill and discharges the mog of ore pulp and account for 80~82% for -0.01mm, is added in ore pulp
Butyl xanthate and each 8~15g/t of butyl ammonium aerofloat consumption, are stirred 1~3 minute, and progress sweeps selected one, are swept selected concentrate entrance and are swept
Selected two, sweep selected mine tailing return and scan；
VIIth, selected two are swept：Selected two are swept without the progress of any medicament in a selected concentrate is swept, selected two mine tailing is swept and returns
Flyback selected one, it is to sweep concentrate to sweep selected two concentrate, will sweep concentrate and merges with the fast concentrate selection of high-grade and obtains final copper concentrate.
Optionally, the mass fraction that the raw ore contains copper is 3~3.6%, and the mass fraction containing silicon is 26~30%.
Optionally, in step I, the 1000~1040g/t of Calcium Oxide Dosage is added in the rod mill, and it is described
Butyl xanthate and each 30~32g/t of butyl ammonium aerofloat consumption；The butyl xanthate is added in the flotation device to use with butyl ammonium aerofloat
Each 30~32g/t is measured, is stirred 2 minutes, 12~14g/t of the MIBC consumptions is then added, stirred 1 minute.
Optionally, in step II, added in the rougher tailings butyl xanthate and butyl ammonium aerofloat consumption each 10~
12g/t, is stirred 2 minutes, then adds 6~8g/t of the MIBC consumptions, is stirred 1 minute.
Optionally, in step III, the floatation concentration 12% is controlled.
Optionally, in step IV, the floatation concentration 12% is controlled.
Optionally, in step VI, the 200~220g/t of lime consumption and waterglass consumption are added in the sand mill
100~120g/t.
Optionally, in step VI, the butyl xanthate and each 10~12g/ of butyl ammonium aerofloat consumption are added in the ore pulp
T, is stirred 2 minutes.
Compared to prior art, the invention has the advantages that：
The present invention uses Stage grinding separation technology, by quick selected and regrind and sweep the selected copper mineral to different dissociated states
Processing is reclaimed respectively；Using lime as pH values of pulp regulator, using butyl xanthate and butyl ammonium aerofloat as collecting agent, using MIBC as foaming
Agent, and lime and part collecting agent are added in grinding machine, collecting agent is to copper under the suitable alkalinity scope caused using lime
Selective collecting effect, that is, ensure the rate of recovery and grade of copper, and the silicone content in concentrate is limited again, and method adapts to ore properties,
Regime of agent is advanced, and separating effect is excellent.Using the inventive method, when raw ore copper grade is 3.00~3.60%, silicon grade is
When 26.0~30.0%, Cu Concentrate Grade>40.0%, copper recovery>85.0%, iron is 1.1~1.2 with silicon dioxide ratio, complete
Meet smelting requirements entirely.
The present invention is described in further detail below in conjunction with drawings and examples；But a kind of fine grain teeth cloth of the present invention
Copper Ores floatation process is not limited to embodiment.
Brief description of the drawings
Fig. 1 is the process chart of the present invention.
Embodiment
Fig. 1 is a kind of fine grain teeth cloth Copper Ores flotation process figure of the invention.The specific method of the present invention by Fig. 1 and
It illustrates to embody.Specifically include following steps as shown in Figure 1：
Ith, roughing：The raw ore for being crushed to -2mm is fed into rod mill and carries out ore grinding, based on raw ore dry weight per ton, in rod milling
Addition calcium oxide (a) 900~1100g/t of consumption in machine, and butyl xanthate (b) and each 25~35g/ of butyl ammonium aerofloat (c) consumption
T, is milled to rod mill and discharges the mog of ore pulp and account for 85~87% for -0.053mm, and slurry pH is 9.8~10.0, by ore deposit
Slurry feeds flotation device, addition butyl xanthate (b) and each 25~35g/t of butyl ammonium aerofloat (c) consumption, stirs 1~3 minute, then adds
Plus MIBC (d) 10~15g/t of consumption, stir 0.5~2 minute, carry out roughing, rougher concentration enters quick selected one, roughing tail
Ore deposit, which enters, scans；
IIth, scan：Butyl xanthate (b) and each 8~15g/t of butyl ammonium aerofloat (c) consumption, stirring 1 are added in rougher tailings
~3 minutes, then MIBC (d) 4~10g/t of consumption are added, stir 0.5~2 minute, scanned, sieved to scanning mine tailing,
Scan chats (1) entrance and sweep selected one；
IIIth, quick selected one：Without any medicament in rougher concentration, floatation concentration 10~15% is controlled, is carried out fast
Speed selected one, a quick selected concentrate enters quick selected two, and a quick selected mine tailing (2), which enters, sweeps selected one；
IVth, quick selected two：Without any medicament in a quick selected concentrate, floatation concentration 10~15% is controlled,
Quick selected two are carried out, quick selected two concentrate is the fast concentrate selection of high-grade (4), quick selected two mine tailing (3), which enters, sweeps essence
Select one；
Vth, mine tailing screening is scanned：Sieved using 270 mesh standard sieves to scanning mine tailing ,+0.053mm coarse fractions on sieve
(5) entrance is swept -0.053mm fine fractions (6) under selected one, sieve and abandoned as mine tailing；
VIth, selected one is swept：Chats (1), a quick selected mine tailing (2), quick selected two mine tailing (3) will be scanned and tail is scanned
+ 0.053mm the coarse fractions (5) of ore deposit, which are concentrated, to be fed sand mill and carries out ore grinding, added in sand mill lime (a) consumption 180~
250g/t and waterglass (e) 80~150g/t of consumption, be milled to sand mill discharge the mog of ore pulp account for 80 for -0.01mm~
82%, butyl xanthate (b) and each 8~15g/t of butyl ammonium aerofloat (c) consumption are added in ore pulp, is stirred 1~3 minute, essence is swept in progress
One is selected, a selected concentrate is swept into sweeping selected two, a selected mine tailing (7) return is swept and scans；
VIIth, selected two are swept：Selected two are swept without the progress of any medicament in a selected concentrate is swept, selected two mine tailing is swept
(8) return and sweep selected one, it is to sweep concentrate (9) to sweep selected two concentrate, will sweep concentrate (9) and merges with the fast concentrate selection of high-grade (4)
Obtain final copper concentrate.
It is specifically described exemplified by implementation below.
Certain ultra-large type copper mine is typical sedimentary rock type Layered Copper Ore Deposit, and gangue mineral is mainly quartz, orthoclase, white clouds
Female, chlorite, copper mineral is mainly vitreous copper, bornite, covellite and chessy copper.The ore valuable mineral disseminated grain size is thin and pole
Uneven, complicated difficult choosing is difficult that silicon effect drops in the copper that carries that has obtained using conventional medicament and floatation process.Using the copper mine not
Raw ore with grade is tested, raw ore cupric 3.53% that embodiment 1 is used, silicon 28.94%, the raw ore that embodiment 2 is used
Cupric 3.31%, silicon 27.90%, raw ore cupric 3.02% that embodiment 3 is used, silicon 26.88%.
Embodiment 1：：According to Fig. 1 the inventive method embodiments, the raw ore for being crushed to -2mm is fed into rod mill and carried out
Ore grinding, based on tcrude ore dry weight per ton, in rod mill add Calcium Oxide Dosage 1020g/t, and butyl xanthate and fourth ammonium it is black
Each 31g/t of survival dose, is milled to the mog of discharged ore pulp and accounts for 86% for -0.053mm, now slurry pH=9.9 or so,
This ore pulp is fed into flotation device, then butyl xanthate and each 31g/t of butyl ammonium aerofloat consumption are added in flotation device, stirs 2 minutes, connects
Addition MIBC consumption 13g/t, are stirred 1 minute, roughing is carried out；Butyl xanthate and butyl ammonium aerofloat consumption are added in rougher tailings
Each 11g/t, is stirred 2 minutes, then adds MIBC consumption 7g/t, is stirred 1 minute, is scanned；In rougher concentration without appoint
What medicament, controls floatation concentration 12%, carries out quick for the first time selected；Without any medicine in quick selected concentrate for the first time
Agent, controls floatation concentration 12%, and progress is quick for the second time selected, and second of quick selected concentrate is the fast concentrate selection of high-grade；
270 mesh standard sieves (sieve aperture correspondence particle size is 0.053mm) are used to be sieved to scanning mine tailing ,+0.053mm coarse grain on sieve
Level into sweeping selected for the first time, and -0.053mm fine fractions are abandoned as mine tailing under sieve；Chats, for the first time quick selected tail will be scanned
Ore deposit, second quick cleaner tailings and scan the+0.053mm coarse fractions of mine tailing and concentrate and feed sand mill and carry out ore grinding, toward being sanded
Addition lime consumption 210g/t and waterglass consumption 110g/t in machine, is milled to the mog of discharged ore pulp and is accounted for for -0.01mm
81%, butyl xanthate and each 11g/t of butyl ammonium aerofloat consumption are added in this ore pulp, is stirred 2 minutes, carries out sweeping selected for the first time,
Cleaner tailings return is swept for the first time to scan；Swept selected for the second time without any medicament in selected concentrate is swept for the first time,
Cleaner tailings return is swept for the second time and sweeps selected for the first time, and it is to sweep concentrate that selected concentrate is swept for the second time, will sweep concentrate and high-grade
Fast concentrate selection, which merges, obtains final copper concentrate.
Embodiment 2：According to Fig. 1 the inventive method embodiments, specific steps and technological parameter, regime of agent and embodiment
1 is identical.
Embodiment 3：According to Fig. 1 the inventive method embodiments, specific steps and technological parameter, regime of agent and embodiment
1 is identical.
The embodiment of the present invention 1, embodiment 2, the technic index of embodiment 3 are shown in Table 1.
Each embodiment result of table 1
Embodiment 1 as shown in Table 1, embodiment 2, the result of implementation of embodiment 3 show, using the inventive method, implement
The copper concentrate copper grade 48.57% that example 1 is obtained, copper recovery 88.34%, Fe：SiO2=1.11；The copper essence that embodiment 2 is obtained
Ore deposit copper grade 46.77%, copper recovery 87.04%, Fe：SiO2=1.13；The copper concentrate copper grade that embodiment 3 is obtained
40.33%, copper recovery 85.20%, Fe：SiO2=1.17.The inventive method is to ore strong adaptability, reliable product quality,
The purpose for improving concentrate quality and the rate of recovery is reached.
Above-described embodiment is only used for further illustrating a kind of fine grain teeth cloth Copper Ores floatation process of the present invention, but this hair
It is bright to be not limited to embodiment, any simple modification that every technical spirit according to the present invention is made to above example, etc.
With change and modification, each fall within the protection domain of technical solution of the present invention.
Claims (8)
1. a kind of fine grain teeth cloth Copper Ores floatation process, it is characterised in that comprise the following steps：
Ith, roughing：The raw ore for being crushed to -2mm is fed into rod mill and carries out ore grinding, based on raw ore dry weight per ton, in rod mill
900~1100g/t of Calcium Oxide Dosage, and butyl xanthate and each 25~35g/t of butyl ammonium aerofloat consumption are added, rod mill institute is milled to
The mog of discharge ore pulp accounts for 85~87% for -0.053mm, and slurry pH is 9.8~10.0, and ore pulp is fed into flotation device,
Butyl xanthate and each 25~35g/t of butyl ammonium aerofloat consumption are added, stirs 1~3 minute, then adds MIBC 10~15g/t of consumption,
Stirring 0.5~2 minute, carries out roughing, and rougher concentration enters quick selected one, and rougher tailings, which enters, to be scanned；
IIth, scan：Butyl xanthate and each 8~15g/t of butyl ammonium aerofloat consumption are added in rougher tailings, is stirred 1~3 minute, then
MIBC 4~10g/t of consumption are added, is stirred 0.5~2 minute, is scanned, sieved to scanning mine tailing, chats entrance is scanned
Sweep selected one；
IIIth, quick selected one：Without any medicament in rougher concentration, floatation concentration 10~15% is controlled, quick essence is carried out
One is selected, a quick selected concentrate enters quick selected two, a quick selected mine tailing, which enters, sweeps selected one；
IVth, quick selected two：Without any medicament in a quick selected concentrate, floatation concentration 10~15% is controlled, is carried out
Quick selected two, quick selected two concentrate is the fast concentrate selection of high-grade, and quick selected two mine tailing, which enters, sweeps selected one；
Vth, mine tailing screening is scanned：Sieved using 270 mesh standard sieves to scanning mine tailing ,+0.053mm coarse fractions enter on sieve
- 0.053mm fine fractions under selected one, sieve are swept to abandon as mine tailing；
VIth, selected one is swept：Chats, a quick selected mine tailing, quick selected two mine tailing and the+0.053mm for scanning mine tailing will be scanned
Coarse fraction, which is concentrated, feeds sand mill progress ore grinding, and 180~250g/t of lime consumption and waterglass consumption 80 are added in sand mill
~150g/t, is milled to sand mill and discharges the mog of ore pulp and account for 80~82% for -0.01mm, butyl is added in ore pulp yellow
Medicine and each 8~15g/t of butyl ammonium aerofloat consumption, are stirred 1~3 minute, and progress sweeps selected one, are swept selected concentrate entrance and are swept selected
Two, sweep selected mine tailing return and scan；
VIIth, selected two are swept：Selected two are swept without the progress of any medicament in a selected concentrate is swept, selected two mine tailings return is swept and sweeps
Selected one, it is to sweep concentrate to sweep selected two concentrate, will sweep concentrate and merges with the fast concentrate selection of high-grade and obtains final copper concentrate.
2. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：The raw ore contains copper
Mass fraction is 3~3.6%, and the mass fraction containing silicon is 26~30%.
3. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step I, in the rod
Addition 1000~the 1040g/t of Calcium Oxide Dosage in grinding machine, and the butyl xanthate and butyl ammonium aerofloat consumption each 30~
32g/t；Add the butyl xanthate and each 30~32g/t of butyl ammonium aerofloat consumption in the flotation device, stir 2 minutes, then
12~14g/t of the MIBC consumptions is added, is stirred 1 minute.
4. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step II, described
The butyl xanthate and each 10~12g/t of butyl ammonium aerofloat consumption are added in rougher tailings, is stirred 2 minutes, then add the MIBC
6~8g/t of consumption, is stirred 1 minute.
5. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step III, institute is controlled
State floatation concentration 12%.
6. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step IV, institute is controlled
State floatation concentration 12%.
7. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step VI, described
Addition 200~the 220g/t of lime consumption and 100~120g/t of waterglass consumption in sand mill.
8. fine grain teeth cloth Copper Ores floatation process according to claim 1, it is characterised in that：In step VI, described
The butyl xanthate and each 10~12g/t of butyl ammonium aerofloat consumption are added in ore pulp, is stirred 2 minutes.
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| CN110064512A (en) * | 2019-04-12 | 2019-07-30 | 东北大学 | A kind of control oxidation-flotation recovery method of copper mine |
| CN112371345A (en) * | 2020-09-30 | 2021-02-19 | 长春黄金研究院有限公司 | Beneficiation method for low-grade micro-fine particle refractory copper-molybdenum ore |
| CN113369019A (en) * | 2021-06-07 | 2021-09-10 | 矿冶科技集团有限公司 | Method for improving recovery rate of valuable metal |
| CN114247539A (en) * | 2021-12-09 | 2022-03-29 | 矿冶科技集团有限公司 | Ore grinding degree selection method based on disseminated particle size characteristics and application |
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| CN110064512A (en) * | 2019-04-12 | 2019-07-30 | 东北大学 | A kind of control oxidation-flotation recovery method of copper mine |
| CN112371345A (en) * | 2020-09-30 | 2021-02-19 | 长春黄金研究院有限公司 | Beneficiation method for low-grade micro-fine particle refractory copper-molybdenum ore |
| CN113369019A (en) * | 2021-06-07 | 2021-09-10 | 矿冶科技集团有限公司 | Method for improving recovery rate of valuable metal |
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