CN106076604B - A kind of ore-dressing technique and its floating agent of Pb-Zn-Ag ore - Google Patents
A kind of ore-dressing technique and its floating agent of Pb-Zn-Ag ore Download PDFInfo
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- CN106076604B CN106076604B CN201610584617.1A CN201610584617A CN106076604B CN 106076604 B CN106076604 B CN 106076604B CN 201610584617 A CN201610584617 A CN 201610584617A CN 106076604 B CN106076604 B CN 106076604B
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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
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B03D1/002—Inorganic compounds
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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
- B03D1/006—Hydrocarbons
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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
- B03D1/018—Mixtures of inorganic and organic compounds
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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
- B03D2203/00—Specified materials treated by the flotation agents; specified applications
- B03D2203/02—Ores
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- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention provides a kind of ore-dressing technique of Pb-Zn-Ag ore, grinding fineness of the raw ore in grinding operation is that -200 mesh account for 50%~60%；Raw ore after ball milling first carries out selecting the lead roughing in Lead exposed, includes the steps that diesel oil is added before the lead roughing；Raw ore after selecting Lead exposed carries out selecting again the zinc roughing of zinc operation, includes the steps that diesel oil is added before the zinc roughing.The present invention eliminates pyrite inhibitor sodium sulfite in traditional floating agent, not only reduces the cost of Pb-Zn-Ag ore ore-dressing technique, while being also beneficial to the raising of lead, zinc, silver raising recovery rate.Also, avoid Pb-Zn-Ag ore degree of oxidation it is higher when, the serious race slot phenomenon occurred in floatation process, and diesel oil is strong for the collecting ability of zincblende.
Description
Technical field
The present invention relates to a kind of ore-dressing technique and its floating agents, a kind of ore-dressing technique more particularly, to Pb-Zn-Ag ore and
Its floating agent.
Background technique
Ore dressing is most important link in entire mineral products production, is the key sector in mine enterprise.General large ore enterprise is all
Be it is comprehensive adopt, select, the resource-based enterprises of smelting.With either physically or chemically by the valuable mineral and useless mineral in raw mineral materials
(commonly referred to as gangue) or toxic mineral separate, or the technical process that a variety of valuable minerals separate is known as ore dressing, also known as " mine
Object processing ".In product, the title concentrate of useful component enrichment；The title tailing of unwanted contributions enrichment；The content of useful component is between essence
Between mine and tailing, the title chats that need to be further processed.Metalliferous mineral concentrate extracts the raw material of metal mainly as smelting industry；It is non-
Raw material of the metalliferous mineral concentrate as other industry；The selected product of coal is cleaned coal.Ore dressing is remarkably improved raw mineral materials
Quality reduces freight, mitigates the difficulty being further processed, and reduces processing cost, and can realize the comprehensive benefit of raw mineral materials
With.
With China's rapid development of economy, the demand of lead zinc-silver metal constantly increases, therefore reinforces Pb-Zn-Ag ore and produce
The comprehensive utilization of resource is of great significance, and lead zinc-silver polymetallic ore synthetical recovery is all the comprehensive benefit of mineral resources all the time
Problem.
However, existing some Pb-Zn-Ag ores are since raw ore degree of oxidation is higher, there are ore dressing difficulty is big, ore-dressing technique at
This higher problem.It in the case of this kind, not only needs largely to consume floating agent, is easy to appear and runs slot phenomenon, and flotation is imitated
Fruit is poor, and especially zincblende is difficult to flotation, and zinc recovery is only 0~20%.
Summary of the invention
In view of this, ore grinding of the raw ore in grinding operation is thin the present invention provides a kind of ore-dressing technique of Pb-Zn-Ag ore
Degree is that -200 mesh account for 50%~60%；Raw ore after ball milling first carries out selecting the lead roughing in Lead exposed, includes before the lead roughing
The step of diesel oil is added；Raw ore after selecting Lead exposed carries out selecting again the zinc roughing of zinc operation, includes that bavin is added before the zinc roughing
The step of oil.
Optionally, further include the steps that water process: putting into six into Pb-Zn-Ag ore beneficiation wastewater by 1~10g/t per ton partially
Sodium phosphate.
Optionally, further comprising the steps of: lead rougher tailings and lead rough concentrate are selected in lead roughing respectively；Wherein, lead roughing
Tailing is scanned, and lead rough concentrate carries out selected.
Optionally, the lead rough concentrate that roughing comes out carries out dressing process more than twice, the lead roughing tail that roughing comes out again
Mine carry out again more than twice scan technique.
Optionally, in lead rougher process, 1~3kg/t of lime, 300~500g/t of zinc sulfate, fourth ammonium are put by raw ore per ton
4~6g/t of black powder, sulphur nitrogen No. 9 50~150g/t, 100~200g/t of diesel oil.
Optionally, in zinc rougher process, 1~3kg/t of lime, 100~200g/t of copper sulphate, fourth Huang are put by raw ore per ton
20~30g/t of medicine, 100~200g/t of diesel oil.
Optionally, further include the steps that water process: putting into six inclined phosphorus into Pb-Zn-Ag ore beneficiation wastewater by 3~8g/t per ton
Sour sodium.
Optionally, lead rougher tailings is added sulphur nitrogen 9 and is scanned；It is selected that lime progress is added in lead rough concentrate.
The present invention also provides a kind of floating agent of Pb-Zn-Ag ore, including lime, zinc sulfate, butyl ammonium aerofloat, sulphur nitrogen 9
And diesel oil.
The present invention also provides a kind of floating agent of Pb-Zn-Ag ore, including lime, copper sulphate, butyl xanthate, diesel oil.
It is of the invention compared with prior art, have the advantage that
(1) eliminate pyrite inhibitor sodium sulfite in traditional floating agent: the production practices of coloured mine confirm: sulfurous
Sour sodium has inhibiting effect to nonferrous metals ore, after rejecting the sodium sulfite in floating agent, not only reduces Pb-Zn-Ag ore choosing
The cost of miner's skill, while being also beneficial to the raising of lead, zinc, silver raising recovery rate.
(2) it joined nonpolarity in the floating agent in the lead roughing and zinc rougher process of the ore-dressing technique of Pb-Zn-Ag ore
Hydrocarbon compound-diesel oil as collecting agent, when avoiding existing floating agent flotation caused by seriously run slot phenomenon, and bavin
Oil is strong for the collecting ability of zincblende, and zincblende floating effect is good, and the rate of recovery of zinc is 80% or more.
In conclusion the ore-dressing technique and its floating agent of Pb-Zn-Ag ore provided by the invention, with above-mentioned many excellent
Point and practical value, and there are no similar method in similar technique and publish and really belong to innovation, more existing lead zinc-silver
The ore-dressing technique of mine has significant technical effect, thus more suitable for practical, and there is extensive industrial value.
Detailed description of the invention
Fig. 1 is the mineral processing circuit figure of lead zinc-silver of the present invention.
Specific embodiment
Mode combined with specific embodiments below is described in further detail claim of the invention, but not structure
At any limitation of the invention, the modification of anyone limited times made within the scope of the invention as claimed, still in this hair
Within bright scope of the claims.
In view of this, ore grinding of the raw ore in grinding operation is thin the present invention provides a kind of ore-dressing technique of Pb-Zn-Ag ore
Degree is that -200 mesh account for 50%~60%；Raw ore after ball milling first carries out selecting the lead roughing in Lead exposed, includes before the lead roughing
The step of diesel oil is added；Raw ore after selecting Lead exposed carries out selecting again the zinc roughing of zinc operation, includes that bavin is added before the zinc roughing
The step of oil.
Above-mentioned, it is one kind of non-ionic collecting agent that diesel oil, which is non-polar hydrocarbon oil collecting agent,.Diesel oil is adsorbed in galena
Surface has preferable hydrophobicity, conducive to the flotation of galena, it is to be understood that diesel oil can be light diesel fuel, can also be by
Kerosene or emulsified kerosene replace, and can obtain preferable galena flotation effect, and lead recovery improves.
It is to be appreciated that when using controling differential flotation process for copper, selecting zincblende in Lead exposed past in Pb-Zn-Ag ore floatation process
Toward strong inhibition is received, if not activated to it in selecting zinc operation, it is difficult to the higher zinc recovery taken.Zincblende activation
Agent has copper, lead, silver, cadmium ion and novel activated dose, but best using copper ion as activator effect, and medicament price is minimum, living
It is most strong to change effect.
However, will appear race slot phenomenon very serious during zinc roughing, by profession when mentioned component is only added
The analysis of technical staff finds the influence due to factors such as pulp density, pharmaceutical quantities and granularities, causes floatation process process sharply
Variation scrapes output exception so as to cause froth bed thickness and foam.It can show two kinds of extreme phenomenons: one is mine liquid
Face falls, and can not scrape foam；Another kind is that a large amount of ore pulps and foam are excessive, and this phenomenon is known as " running slot ".
Serious race slot phenomenon is inhibited in zinc rougher process after addition diesel oil, and diesel oil is for the collecting energy of zincblende
Power is strong, and zincblende largely floats, and zinc recovery is increased to 80% or more by 0~20% before improving.Annual lead concentrate after improvement
Leaded 68.51%, mutually contain zinc 2.31%, lead recovery 96.90%, lead concentrate argentiferous 1000g/t, silver raising recovery rate 90%, zinc essence
Mine contain zinc 47.92%, mutually leaded 1.22%, zinc recovery 77.63% improve after lead recovery 96.90%~99.00%, silver return
Yield 90.00%~92.00%.
Before improvement, former year production target: lead concentrate leaded 68% mutually contains zinc 2.4%, and lead recovery 93%, lead concentrate contains
Silver-colored 8500g/t, silver raising recovery rate 79%, zinc concentrate contain zinc 47%, mutually leaded 1.8%, zinc recovery 58%.
Improve front and back comparison: lead recovery improves 3.9%, and silver raising recovery rate improves 11%, and zinc recovery improves
19.37%, flotation effect is prominent.
It is to be appreciated that the raw ore leaded 8.60% that the present invention uses, contains zinc 2.98%, silver-colored 140g/t, sulfur content height
It is high-sulfur Pb-Zn-Ag ore up to 25% or more.
It is confirmed through long-term practice, this kind of beneficiation method is suitable for lead zinc-silver high-sulfur mine and the higher difficult ore dressing of degree of oxidation
In, preferable flotation effect is all had, high-sulfur mine is significantly improved, the rate of recovery of difficult ore dressing reduces economic cost.
Further, further include the steps that water process: putting into six into Pb-Zn-Ag ore beneficiation wastewater by 1~10g/t per ton
Sodium metaphosphate.
It is above-mentioned, need aluminum sulfate, polyacrylamide, activated carbon, sodium carbonate, the sulfuric acid of addition sub- in existing water treatment procedure
Iron.Water treatment efficiency is poor, and water pollution is difficult to be improved, and polyacrylamide is organic matter, poorly water-soluble, viscosity
Greatly, easily the pore of blocking ceramic wafer, dust technology are difficult to react with it, moreover, activated carbon constituents also easily block the hair of ceramic wafer
Pore, and dust technology is difficult to react with it, the ceramic wafer in the short time after blocking loses water filtering function.It is existing water-treated
Journey is not only difficult to avoid that water pollution, and higher cost
And the ability that calgon improves water quality as water softener is strong, puts into 5g/t by Pb-Zn-Ag ore beneficiation wastewater per ton
Calgon, than the 180g/t aluminum sulfate of former common process addition, the improvement of 5g/t polyacrylamide is more preferable.And water
Processing cost substantially reduces.Moreover, calgon is ionic compound, in ore pulp, exists with ionic condition, do not influence lead
Concentrate, zinc concentrate, tailing filtration, it is the long service life of ceramic wafer, at low cost, while filter effect is good, product moisture is low.
It is understood that the activity of residual pharmacy in floatation process is remained since calgon additive amount is less,
Residual pharmacy in waste water can continue to for flotation, and floating agent cost significantly reduces.
Even if in Tibet Autonomous Region's temperature at 10 degree hereinafter, floating agent dosage still very little, floatation indicators are still fine.
And before improving, temperature is lower, and dosing is bigger, and floatation indicators are deteriorated.
Waste water has accomplished zero-emission after the method for water process is improved.
Further, further comprising the steps of: lead rougher tailings and lead rough concentrate are selected in lead roughing respectively；Wherein, lead is thick
Tailing is selected to be scanned, lead rough concentrate carries out selected.
It is above-mentioned, the rate of recovery that can improve galena is scanned, it is selected that concentrate grade can be improved, reduce the mineral without economic value
And gangue, it improves concentrate grade and further improves its market value.
Further, the lead rough concentrate that roughing comes out carries out dressing process more than twice, the lead roughing that roughing comes out again
Tailing carry out again more than twice scan technique.
Further, in lead rougher process, 1~3kg/t of lime, 300~500g/t of zinc sulfate also are put by raw ore per ton,
4~6g/t of butyl ammonium aerofloat, sulphur nitrogen No. 9 50~150g/t, 100~200g/t of diesel oil.
Above-mentioned, lime can be milk of lime or quick lime, generally be formed by ball mill grinding.On the one hand lime is in ore dressing
The pH adjusting agent of floating agent, and be also pyrite inhibitor.During lead roughing, lime is added, inhibits lead zinc-silver
The floating of pyrite in mine, improves collecting effect.And since lime is relatively inexpensive, it is effectively controlled the choosing of Pb-Zn-Ag ore
The cost of miner's skill.
Zinc sulfate and lime can produce HZnO in ore pulp2And ZnO2 2-Hydrophilic colloid be adsorbed on zincblende surface,
To reduce the floatability of zincblende to reach inhibitory effect, and OH- can show to generate Fe (OH) in pyrite3Hydrophilic gel
Body, can also be with " unavoidable ion "-Cu in ore pulp to inhibit pyrite2+It generates Cu (OH)2Precipitating, to avoid its activation
Zincblende and pyrite.So-called " unavoidable ion " is that mineral receive oxidation and hydration in water, is caused inside mineral lattice
Bond energy weakens, destroys, so that some ion-solubilities in surface be made to get off.Intrinsic ion is referred to as " inevitably in these ions and water
Ion ".
Butyl ammonium aerofloat is the excellent collecting agent and foaming agent of nonferrous metallic ores.To the mine of copper, lead, silver and the zinc activated
And hardly possible selects polymetallic ore to have special separating effect.It is in alkalescent ore pulp to the collecting performance of pyrite and magnetic iron ore
It is weaker, and it is stronger to the collecting ability of galena.
Sulphur nitrogen 9 are lead minerals selective copper collectors, and technique is widely used, and sorting result is significant.Using diethyldithiocarbamate conduct
Lead minerals collecting agent diffeential floatation lead minerals reduces the dosage of zinc inhibitor, and lead recovery improves, and index is preferable.
Further, in zinc rougher process, 1~3kg/t of lime, 100~200g/t of copper sulphate also are put by raw ore per ton,
20~30g/t of butyl xanthate, 100~200g/t of diesel oil.
It is above-mentioned, it is to be understood that in Pb-Zn-Ag ore floatation process, when using controling differential flotation process for copper, to select in Lead exposed and dodge
Zinc ore has suffered from strong inhibition, if not activating to it in selecting zinc operation, it is difficult to the higher zinc recovery taken.Dodge zinc
Mine activator has copper, lead, silver, cadmium ion and novel activated dose, but best using copper ion as activator effect, and medicament price is most
Low, activation effect is most strong.Therefore copper sulphate has been selected in the present invention.
Butyl xanthate is a kind of stronger floating agent of collecting ability, and the mixing that it is widely used in various nonferrous metals ores is floating
It chooses.The product particularly suitable for zincblende, can effective collecting copper sulphate for activation zincblende.
It is understood that refering to fig. 1, the flotation agent situation being added in each process is as shown in Figure 1.Lead roughing II is swept to lead
It selects and floating agent sulphur nitrogen 9 is added by 40g/t per ton when I, lead is scanned and flotation medicine is added by 30g/t per ton when I scans II to lead
Agent sulphur nitrogen 9, lead roughing II to the selected I of lead add floating agent zinc sulfate by 150g/t per ton, and the selected I of lead to the selected II of lead is by every
Lime is added in ton 0.2kg/t, and zinc roughing to zinc scans I and butyl xanthate is added by 90g/t per ton, and zinc sulfate is added by 25g/t per ton,
Zinc scans I and scans II by 36g/t per ton addition butyl xanthate to zinc, and zinc sulfate is added by 24g/t per ton.
Further, further include the steps that water process: putting into six into Pb-Zn-Ag ore beneficiation wastewater by 3~8g/t per ton partially
Sodium phosphate.
Further, lead rougher tailings is added sulphur nitrogen 9 and is scanned；It is selected that lime progress is added in lead rough concentrate.
Above-mentioned, in floatation process, we scrape the foam with ore particulate floated, with big on foam
Medicament is measured, with scraping for foam, the medicament in subsequent ore pulp is reduced relatively, so needing to add later.It is understood that
, medicament can not be excessively added in front, medicament is excessive, and excessive medicament can be useless to other or without economic value
Mineral and gangue collecting get up, cause concentrate grade too low, influence selling price.Also, due to the flotation of certain ore particles speed
Degree is slower, needs to add some medicaments below to recycle this part ore particle.
The present invention also provides a kind of floating agent of Pb-Zn-Ag ore, including lime, zinc sulfate, butyl ammonium aerofloat, sulphur nitrogen 9
And diesel oil.
The present invention also provides a kind of floating agent of Pb-Zn-Ag ore, including lime, copper sulphate, butyl xanthate, diesel oil.
To facilitate the understanding of the present invention, below with reference to embodiment to further illustrate the technical scheme of the present invention.Applicant
Statement, detailed process equipment and process flow of the invention that the present invention is explained by the above embodiments, but the present invention not office
It is limited to above-mentioned detailed process equipment and process flow, that is, does not mean that the present invention should rely on above-mentioned detailed process equipment and technique stream
Cheng Caineng is implemented.It should be clear to those skilled in the art, any improvement in the present invention, to each original of product of the present invention
The equivalence replacement of material and addition, the selection of concrete mode of auxiliary element etc. all fall within protection scope of the present invention and open model
Within enclosing.
Embodiment 1
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 51%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 1kg/t, zinc sulfate 100g/t, butyl ammonium aerofloat 2g/t, sulphur nitrogen 9
50g/t, diesel oil 50g/t；
(2) in zinc roughing, lime 1kg/t, copper sulphate 100g/t, butyl xanthate 10g/t, diesel oil 50g/ are put by raw ore per ton
t。
Embodiment 2
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 52%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, lime 5kg/t, zinc sulfate 500g/t, butyl ammonium aerofloat 10g/t, sulphur nitrogen 9 are put by raw ore per ton
Number 200g/t, diesel oil 200g/t；
(2) in zinc roughing, lime 5kg/t, copper sulphate 500g/t, butyl xanthate 40g/t, diesel oil are put by raw ore per ton
200g/t。
Embodiment 3
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 53%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 3kg/t, zinc sulfate 300g/t, butyl ammonium aerofloat 8g/t, sulphur nitrogen 9
100g/t, diesel oil 100g/t；
(2) in zinc roughing, lime 3kg/t, copper sulphate 300g/t, butyl xanthate 30g/t, diesel oil are put by raw ore per ton
100g/t。
Embodiment 4
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 54%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 2kg/t, zinc sulfate 400g/t, butyl ammonium aerofloat 5g/t, sulphur nitrogen 9
100g/t, diesel oil 150g/t；
(2) in zinc roughing, lime 2kg/t, copper sulphate 150g/t, butyl xanthate 24g/t, diesel oil are put by raw ore per ton
150g/t。
Embodiment 5
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 55%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 2kg/t, zinc sulfate 400g/t, butyl ammonium aerofloat 5g/t, sulphur nitrogen 9
100g/t, diesel oil 150g/t；
(2) in zinc roughing, lime 2kg/t, copper sulphate 150g/t, butyl xanthate 24g/t, diesel oil are put by raw ore per ton
150g/t。
(3) calgon is put into Pb-Zn-Ag ore beneficiation wastewater by 1g/t per ton.
Embodiment 6
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 58%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 2kg/t, zinc sulfate 400g/t, butyl ammonium aerofloat 5g/t, sulphur nitrogen 9
100g/t, diesel oil 150g/t；
(2) in zinc roughing, lime 2kg/t, copper sulphate 150g/t, butyl xanthate 24g/t, diesel oil are put by raw ore per ton
150g/t。
(3) calgon is put into Pb-Zn-Ag ore beneficiation wastewater by 10g/t per ton.
Embodiment 7
A kind of ore-dressing technique of Pb-Zn-Ag ore provided by the invention, grinding fineness of the raw ore in grinding operation are -200 mesh
Account for 60%；Raw ore advanced quadrat roughing after ball milling includes the steps that diesel oil is added before lead roughing；Raw ore after lead roughing again into
Row zinc roughing includes the steps that diesel oil is added before zinc roughing.
(1) in lead roughing, by raw ore per ton put into lime 2kg/t, zinc sulfate 400g/t, butyl ammonium aerofloat 5g/t, sulphur nitrogen 9
100g/t, diesel oil 150g/t；
(2) in zinc roughing, lime 2kg/t, copper sulphate 150g/t, butyl xanthate 24g/t, diesel oil are put by raw ore per ton
150g/t。
(3) calgon is put into Pb-Zn-Ag ore beneficiation wastewater by 5g/t per ton.
Examples 1 to 7 each group ore-dressing technique index, 5~7 each group water quality of embodiment is more clear, can reach the countries concerned's dirt
Water comprehensive discharge standard.
Claims (6)
1. a kind of ore-dressing technique of Pb-Zn-Ag ore, which is characterized in that the ore-dressing technique is applied to the height of 25% or more sulfur content
Sulphur Pb-Zn-Ag ore, grinding fineness of the raw ore in grinding operation are that -200 mesh account for 50%~60%；Raw ore after ball milling first carries out
The lead roughing in Lead exposed is selected, includes the steps that diesel oil is added before the lead roughing；Raw ore after selecting Lead exposed carries out selecting zinc again
The zinc roughing of operation includes the steps that diesel oil is added before the zinc roughing；
In lead rougher process, 1~3kg/t of lime, 300~500g/t of zinc sulfate, 4~6g/ of butyl ammonium aerofloat are put by raw ore per ton
T, sulphur nitrogen No. 9 50~150g/t, 100~200g/t of diesel oil；
Further include the steps that calgon, which is used alone, carries out water process: by 1~10g/t per ton to Pb-Zn-Ag ore beneficiation wastewater
Middle investment calgon.
2. the ore-dressing technique of Pb-Zn-Ag ore as described in claim 1, which is characterized in that further comprising the steps of: lead roughing point
Lead rougher tailings and lead rough concentrate are not selected；Wherein, lead rougher tailings is scanned, and lead rough concentrate carries out selected.
3. the ore-dressing technique of Pb-Zn-Ag ore as claimed in claim 2, which is characterized in that the lead rough concentrate that roughing comes out carries out again
Dressing process more than twice, roughing come out lead rougher tailings carry out again more than twice scan technique.
4. the ore-dressing technique of Pb-Zn-Ag ore as described in claim 1, which is characterized in that in zinc rougher process, by raw ore per ton
Put into 1~3kg/t of lime, 100~200g/t of copper sulphate, 20~30g/t of butyl xanthate, 100~200g/t of diesel oil.
5. the ore-dressing technique of Pb-Zn-Ag ore as described in claim 1, which is characterized in that press 3~8g/t per ton to Pb-Zn-Ag ore
Calgon is put into beneficiation wastewater.
6. the ore-dressing technique of Pb-Zn-Ag ore as claimed in claim 2, which is characterized in that lead rougher tailings be added sulphur nitrogen 9 into
Row is scanned；It is selected that lime progress is added in lead rough concentrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584617.1A CN106076604B (en) | 2016-07-22 | 2016-07-22 | A kind of ore-dressing technique and its floating agent of Pb-Zn-Ag ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610584617.1A CN106076604B (en) | 2016-07-22 | 2016-07-22 | A kind of ore-dressing technique and its floating agent of Pb-Zn-Ag ore |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106076604A CN106076604A (en) | 2016-11-09 |
| CN106076604B true CN106076604B (en) | 2019-05-17 |
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| CN106423572A (en) * | 2016-11-30 | 2017-02-22 | 长春黄金研究院 | Lead zinc ore flotation method adopting novel combined inhibitor |
| CN106694233B (en) * | 2016-12-16 | 2019-07-26 | 西乌珠穆沁旗银漫矿业有限责任公司 | Silver guiding recycling beneficiation method in plumbum-zinc vulcanizing mine separation process |
| CN108014927A (en) * | 2017-08-14 | 2018-05-11 | 内蒙古森泰企业咨询有限公司 | Copper-lead zinc-silver bismuth oxysulphied ore deposit floatation process |
| CN107774456A (en) * | 2017-11-12 | 2018-03-09 | 南京银茂铅锌矿业有限公司 | Post machine joint is segmented asynchronous coarse concentrate regrinding and selects lead method |
| CN109453901A (en) * | 2018-07-27 | 2019-03-12 | 广西大学 | A kind of method for floating of Interfacial complexation zinc sulfide ore |
| CN109569873A (en) * | 2018-11-22 | 2019-04-05 | 长春黄金研究院有限公司 | A kind of process recycling lead minerals in the poor zinc Pb-Zn deposits of high lead in advance |
| CN111672634B (en) * | 2020-07-13 | 2021-11-30 | 中南大学 | Combined zinc collector for flotation of lead-zinc sulfide ore and application thereof |
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