CN106733202A - Flotation method for fine-grained embedded copper sulfide ore - Google Patents
Flotation method for fine-grained embedded copper sulfide ore Download PDFInfo
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- CN106733202A CN106733202A CN201611022083.XA CN201611022083A CN106733202A CN 106733202 A CN106733202 A CN 106733202A CN 201611022083 A CN201611022083 A CN 201611022083A CN 106733202 A CN106733202 A CN 106733202A
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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
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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
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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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
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
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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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/04—Frothers
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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
- B03D2203/04—Non-sulfide ores
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Abstract
The invention discloses a flotation method of fine-grained embedded copper sulfide ore, which specifically comprises the steps of ore grinding, roughing, regrinding of roughed concentrate, copper and sulfur separation flotation of roughed concentrate, scavenging of roughed tailings and the like. The method has the advantages that the ore grinding process flow is optimized, the surface characteristics of the ore are improved through reasonable addition of the collecting agent and the collecting foaming agent, the selective adsorption of the collecting agent on the surfaces of copper sulfide mineral particles such as fine-grain chalcopyrite, chalcocite and the like is enhanced, and hydrophobic agglomeration is formed, so that the recovery rate of copper concentrate is improved by 3-6% compared with the existing ore dressing method.
Description
Technical field
Technical field is sorted the invention belongs to mineral, and in particular to a kind of method for floating of fine-grained disseminated grain copper sulfide ore.
Background technology
Copper is a kind of and the very close non-ferrous metal of human relation, is widely used in electric, light industry, machinery system
Make, building industry, the field such as national defense industry, the copper for producing in the world at present has nearly half consumption in electrical industry, and copper is at me
Aluminium is only second in the consumption of state's nonferrous materials.
Copper mine is broadly divided into copper-sulphide ores and cupric oxide ore two types.At present, copper metal is mainly from copper sulfide ore
Extract, copper is general based on chalcopyrite, vitreous copper in copper sulfide ore, sulphur based on pyrite, magnetic iron ore in the form of exist；
For the copper sulfide ore of fine-grained disseminated grain, particulate copper mineral is difficult to collecting, and shallow crust structures are difficult, and copper and companion are taken into account when sorting
Bioelement gold, silver, the synthetical recovery of sulphur are the keys for selecting such ore beneficiation technique.
Fine-grained disseminated grain copper sulfide ore Mineral Dressing Process flow in the country's mainly uses two kinds of technological processes at present, and one is one
Section grinding-flotation flowsheet, i.e. raw ore is once levigate, then carries out roughing 1~2 time, selected 1~3 time, scans 1~3 time, scans
Mine tailing selects sulphur, and chats order is returned；Two is that ore grinding-roughing-coarse concentrate regrinding-shallow crust structures flow, i.e. raw ore carries out one section of mill
Ore deposit, then carries out roughing 1~2 time, scans 1~2 time, scans mine tailing and selects sulphur；Rougher concentration is regrinded, shallow crust structures roughing 1~2
It is secondary, selected 1~2 time of shallow crust structures, shallow crust structures are scanned 1 time, and all chats orders are returned；Regime of agent is using lime as ore deposit
Slurry pH regulators and Iron pyrite inhibitor, xanthate, black powder, esters medicament make collecting agent, and terpenic oil, MIBC are floated as foaming agent
There is problems with choosing, the method：（1）Technological process is not adapted to the need for fine-grained disseminated grain copper sulfide ore sorts, it is impossible to really
The abundant monomer dissociation of copper sulfide mineral is protected without regard to overground；（2）Existing collecting agent（Collector and frother）Particulate is vulcanized
Copper mineral collecting effect is poor, causes fine fraction copper sulfide mineral to be lost in mine tailing；（3）The collecting agents such as xanthate, black powder are selected
Property collecting ability is poor, it is necessary to uses large quantities of lime, could suppress the floating of troilite, causes partial vulcanization copper mineral to be also subject to
Suppress, copper beneficiating technology index is undesirable, it can be seen that, the process copper recovery is relatively low, serious waste of resources, it is more difficult to real
Economic, efficient, the cleaning of existing copper-sulphide ores resource are developed, and based on the characteristic of fine-grained disseminated grain copper sulfide ore, how to be passed through
Dressing method simple and easy to apply realizes the high efficiente callback of copper, and copper and accompanying element are improved on the premise of qualified copper concentrate is obtained
Gold, the rate of recovery of sulphur seem most important.
The content of the invention
It is existing in the prior art to solve it is an object of the invention to provide a kind of method for floating of fine-grained disseminated grain copper sulfide ore
The technological process for having beneficiation method is not adapted to the need for fine-grained disseminated grain copper sulfide ore sorts, existing collecting agent（Collecting rises
Infusion）It is poor to particulate copper sulfide mineral selectivity collecting effect, cause fine fraction copper sulfide mineral to be lost in mine tailing seriously,
The problem for causing the rate of recovery of copper low.
To reach above-mentioned purpose, the technical scheme is that：A kind of method for floating of fine-grained disseminated grain copper sulfide ore, its
It is characterised by：Specifically include following steps：
A, ore grinding：By crushing raw ore, ore grinding, copper sulfide mineral, pyrite, magnetic iron ore, gangue mineral is set fully to dissociate, ore grinding
When add pH values of pulp regulator and pyrite inhibitor, based on raw ore per ton, the addition of lime is 500~1500g/t, is added water
It is 32-40% to size mixing to weight concentration, and the pH value of ore pulp is 7.5~9；
B, roughing：Based on raw ore per ton, to adding 20~30g/t of Isobutylxanthic acid, collecting foaming in the ore pulp after step A ore grindings
20~50g/t of agent, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C, rougher concentration are regrinded：Rougher concentration in step B is regrinded, based on raw ore per ton, when regrinding add lime 500~
800g/t, add water size mixing to weight concentration be 20~28%, slurry pH be 8.5~10.5；
D, rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds 20~30g/t of Isobutylxanthic acid, 20~40g/t of collector and frother, stirs 2min, carries out flotation, and flotation time is
8min, obtains shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, 100~300g/t of lime is added,
Stirring 3min, adds 10~20g/t of Isobutylxanthic acid, 20~30g/t of collector and frother, stirs 2min, flotation is carried out, during flotation
Between be 6min, obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, 100~300g/t of lime, stirring is added
3min, carries out flotation, and flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtains
Recleaning concentrate and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures one
Secondary selected formation closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, 100~300g/t of lime is added, 3min, addition is stirred
5~15g/t of Isobutylxanthic acid, 10~20g/t of collector and frother, stir 2min, carry out flotation, and flotation time is 6min, obtain
Shallow crust structures scan chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned
Chats returns to Regrinding and forms closed cycle after merging
E, rougher tailings are scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
10~15g/t of medicine, 10~20g/t of collector and frother, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection
Chats and mine tailing；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add 10~15g/t of Isobutylxanthic acid, collecting foaming
10~20g/t of agent, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, once purging selection
Middling recurrence step B simultaneously forms closed cycle, and secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, 50~120g/t of amyl group xanthate, methyl-isobutyl is added
20~60g/t of methyl alcohol, stir 2min, carry out flotation, flotation time is 10min, obtain iron concentrate and desulfurization mine tailing, iron concentrate with
Shallow crust structures scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
Preferably, lime is pH values of pulp regulator and pyrite inhibitor, and the shallow crust structures roughing, shallow crust structures are once
During selected, recleaning, shallow crust structures are scanned, Isobutylxanthic acid is collecting agent, and collector and frother is pi-allyl sulfo-amino first
Sour isobutyl ester, isopropyl xanthan acid propylene nitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；The roughing, once sweep
Choosing, it is secondary scan, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl
Xanthic acid acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture, secondary to scan during mine tailing selects sulphur, amyl group xanthate is
Sulphur collecting agent is selected, methyl isobutyl carbinol is foaming agent.
Preferably, collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester（Instead
Formula）, isopropyl xanthan acid propylene nitrile ester（It is trans）, 1,12- dodecanedithiols mixture（Mixed uniformly liquid）, three
Person's mass ratio is 7：2：1, collector and frother is directly added with stoste.
Preferably, lime is made into the emulsion addition that weight concentration is 10~15%.
Preferably, Isobutylxanthic acid is made into the solution addition that weight concentration is 1~5%.
Preferably, amyl group xanthate is made into the solution addition that weight concentration is 1~5%.
Preferably, methyl isobutyl carbinol is directly added with stoste.
Preferably, in step A the ore particle of crushing raw ore, ore grinding to fineness less than 0.074mm account for total ore particle 70~
90%。
Preferably, the rougher concentration in step C again ore grinding to fineness less than 0.038mm ore particle account for total ore particle 80~
98%。
The inventive method technological process is raw ore primary grinding, and one roughing is scanned twice, scans mine tailing desulfurization flotation；
Coarse concentrate regrinding, shallow crust structures one roughing, selected twice, once purging selection, shallow crust structures primary cleaning chats and shallow crust structures
Scan chats and merge return Regrinding, remaining chats order is returned, and lime is added in ore grinding and makees pH values of pulp regulator and Huang
Iron ore inhibitor, copper sulfide mineral collecting agent is Isobutylxanthic acid, and collecting agent foaming agent is allyl sulfide for carbamic acid isobutyl
Ester, isopropyl xanthan acid propylene nitrile ester（It is trans）, the mixture prepared according to a certain ratio of 1,12- dodecanedithiols；Sulphur iron
Ore deposit（Including pyrite, magnetic iron ore etc.）Collecting agent is amyl group xanthate, and foaming agent is methyl isobutyl carbinol, and the inventive method takes
Obtained the beneficiating technology index better than existing beneficiation method.
The inventive method is directed to the flotation of fine-grained disseminated grain copper sulfide ore, by optimizing grinding process flow and medicament system
Degree, achieves the beneficiating technology index better than existing beneficiation method, and its reason is：1st, present invention process flow is one section of mill of raw ore
Ore deposit, then carries out one roughing, scans twice, scans mine tailing and selects sulphur；Then coarse concentrate regrinding is carried out, shallow crust structures are once thick
Choosing, selected twice, once purging selection, shallow crust structures primary cleaning chats and shallow crust structures scan chats and merge return Regrinding,
Remaining chats order is returned, and its grinding process feature is primary grinding, coarse concentrate regrinding, shallow crust structures primary cleaning chats and copper
Sulphur content returns to Regrinding from scanning chats and merge, and makes in ore the abundant monomer dissociation of copper sulfide mineral without regard to overground,
For follow-up flotation operation creates favorable conditions；2nd, using a kind of collector and frother, the collector and frother is allyl sulfide for ammonia
Base iso-butyl formate, isopropyl xanthan acid propylene nitrile ester（It is trans）, 1,12- dodecanedithiols prepare according to a certain ratio it is mixed
Compound, three's mass ratio is 7：2：1, the collector and frother can strengthen relatively poor to particulate copper sulfide mineral and floatability
The collecting of secondary copper ores, the allyl sulfide in collector and frother is for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester
（It is trans）Esters medicament is belonged to, because polar group contains N, S atom in agent molecule, nonpolar base contains the structures such as double bond base
Feature, its absorption can form the covalent σ fit keys of Me-N or Me-S and backdonation on copper sulfide mineral surface, enhance metal
With the bond energy of part, its complex energy is relatively low, and the microfine copper sulfide mineral for enabling small granularity, light weight, surface high is easy
The hydrophobicity agglomerate of the stabilization beneficial to the fine and close of flotation is formed with, the sorting index of microfine copper sulfide mineral is effectively increased；
Composition 1 in collector and frother, 12- dodecanedithiols are a kind of collecting agents of Long carbon chain, are caught with stronger selectivity
Receipts ability, being capable of the poor secondary copper ores of collecting floatability；Each component was played certainly in floatation process, both in collector and frother
The advantage of body synergy mutually again, has complementary functions, and enhances relatively poor to particulate copper sulfide mineral and floatability secondary
The collecting of copper mineral, effectively improves copper beneficiating technology index.
It is an advantage of the invention that：1st, by optimizing grinding process flow, i.e., using primary grinding, coarse concentrate regrinding, copper sulphur
Separate primary cleaning chats and shallow crust structures scan chats and merge the technique for returning and regrinding, copper sulfide mineral is fully single in making ore
Body dissociates without regard to overground（Mainly cupric intergrowth particle is able to abundant monomer in rough concentrate and chats）, it is follow-up
Flotation operation creates favorable conditions；2nd, by collecting agent, the reasonable addition of collector and frother, mineral surfaces characteristic is improved, by force
Changed collecting agent the selective absorption of the copper sulfide mineral particle surface such as particulate chalcopyrite, vitreous copper and formed hydrophobicity gather
Group, is conducive to the flotation of copper mineral；3rd, the more existing beneficiation method of copper concentrate copper recovery improves 3~6%, is reclaiming copper-sulphide ores
While thing, gold, the sulfur mineral of association in efficient synthetical recovery ore；4th, it is simple with technology, adaptability and can grasp
The advantages of property made is strong.
Brief description of the drawings
Fig. 1 is the process chart of method for floating of the invention.
Fig. 2 is the process chart of existing method for floating.
Specific embodiment
The invention will be further described with specific embodiment for explanation below in conjunction with the accompanying drawings.
Lime in embodiment 1-4, Isobutylxanthic acid, collector and frother, amyl group xanthate, the consumption of methyl isobutyl carbinol,
Result of the test and compareed referring to table 1 with existing method for floating.
Collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester in embodiment 1-4
（It is trans）, 1,12- lauryl mercaptans mixture, three's mass ratio be 7：2：1.Collector and frother is using preceding being made
Standby, it is 7 that three's mass ratio is pressed during preparation：2：After 1 weighs, pour into be sufficiently stirred in a container, it is well mixed obtain described in catch
Pack up infusion.Directly added with stoste when collector and frother is used.
Embodiment 1
The present embodiment head grade is copper 0.92%, gold 0.24g/t, sulphur 9.40%, iron 15.76%.Its material composition is：In ore
Major metal mineral with pyrite, magnetic iron ore, chalcopyrite, magnetic iron ore, galena, zincblende, a small amount of marcasite, bornite,
Trace quantity mineral has vitreous copper, mispickel, alpha chalcocite, rusty gold, electrum；Gangue mineral has pyroxene, garnet, quartz, Fang Xie
Stone, feldspar, chlorite, allochite etc..Raw ore material phase analysis result shows that copper sulfide mineral includes primary copper mineral and time pig copper
Mineral, based on primary copper mineral, cupric oxide accounts for 1~3%, and chalcopyrite distributed pole is uneven, mostly 0.005~0.15mm it
Between, wherein the particle less than 0.038mm accounts for 89.5%.The mineral processing index of copper is not influenceed by ore oxidation substantially, but copper in ore
Mineral disseminated grain size, secondary copper content, mog, regime of agent etc. will cause significant impact to the mineral processing index of copper.
A kind of method for floating of fine-grained disseminated grain copper sulfide ore, it is characterised in that：Specifically include following steps：
A, ore grinding：Crushing raw ore, ore grinding, ore particle of the ore grinding to fineness less than 0.074mm are accounted for the 80% of total ore particle, make copper sulfide
Mineral, pyrite, magnetic iron ore, gangue mineral are fully dissociated, and pH values of pulp regulator and pyrite inhibitor are added during ore grinding, are pressed
Raw ore meter per ton, the addition of lime is 1000g/t, and adding water, to size mixing to weight concentration be 35%, and the pH value of ore pulp is 8；
B, roughing：Based on raw ore per ton, to adding Isobutylxanthic acid 25g/t, collector and frother in the ore pulp after step A ore grindings
35g/t, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C, rougher concentration are regrinded：Rougher concentration in step B is regrinded, ore particle of the ore grinding to fineness less than 0.038mm is accounted for always
The 90% of ore particle, based on raw ore per ton, when regrinding add lime 500g/t, add water size mixing to weight concentration be 25%, slurry pH
It is 9；
D, rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds Isobutylxanthic acid 20g/t, collector and frother 30g/t, stirs 2min, carries out flotation, and flotation time is 8min, is obtained
Obtain shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, lime 200g/t, stirring is added
3min, adds Isobutylxanthic acid 10g/t, collector and frother 22g/t, stirs 2min, carries out flotation, and flotation time is 6min, is obtained
Obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, lime 100g/t is added, 3min is stirred,
Flotation is carried out, flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtain secondary fine
Concentrate selection and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures primary cleaning
Form closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, lime 150g/t is added, 3min is stirred, isobutyl is added
Base xanthate 10g/t, collector and frother 20g/t, stir 2min, carry out flotation, and flotation time is 6min, obtain shallow crust structures and scan
Chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned after chats merges and returned
Return Regrinding and form closed cycle
E, rougher tailings are scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
Medicine 15g/t, collector and frother 20g/t, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection chats and tail
Ore deposit；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add Isobutylxanthic acid 10g/t, collector and frother
15g/t, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, and once purging selection chats is returned
Return step B and form closed cycle, secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, amyl group xanthate 80g/t, methyl isobutyl carbinol is added
50g/t, stirs 2min, carries out flotation, and flotation time is 10min, obtains iron concentrate and desulfurization mine tailing, iron concentrate and shallow crust structures
Scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
Lime is pH values of pulp regulator and pyrite inhibitor, shallow crust structures roughing, shallow crust structures primary cleaning, secondary fine
Choosing, during shallow crust structures scan, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, different
Xanthogen acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；Roughing, once purging selection, it is secondary scan,
Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester
（It is trans）, 1,12- lauryl mercaptans mixture, secondary to scan during mine tailing selects sulphur, amyl group xanthate is to select sulphur collecting agent, methyl
Isobutyl carbinol is foaming agent.
Lime is made into the emulsion addition that weight concentration is 10% in step A, B, C, D, E；Collecting foaming in step B, D, E
Agent is directly added with stoste；Isobutylxanthic acid is made into weight concentration for 2% aqueous solution is added in step B, D, E；Amyl group in step E
Xanthate is made into weight concentration for 2% aqueous solution is added；Methyl isobutyl carbinol is directly added with stoste in step E.
Embodiment 2
The present embodiment head grade is copper 0.71%, gold 0.21g/t, sulphur 10.11%, iron 17.58%.Its material composition is：In ore
With pyrite, magnetic iron ore, chalcopyrite, magnetic iron ore, a small amount of and trace quantity mineral has bornite, vitreous copper, side to major metal mineral
Lead ore, mispickel, rusty gold, electrum；Gangue mineral has garnet, quartz, calcite, feldspar, chlorite, allochite etc..It is former
Mineral facies analysis result shows that copper sulfide mineral includes primary copper mineral and secondary copper ores, based on primary copper mineral, oxidation
Copper accounts for 2.8%, and chalcopyrite distributed pole is uneven, mostly between 0.005-0.15mm, wherein the particle less than 0.038mm is accounted for
86.3%。
A kind of method for floating of fine-grained disseminated grain copper sulfide ore, it is characterised in that：Specifically include following steps：
A, ore grinding：Crushing raw ore, ore grinding, ore particle of the ore grinding to fineness less than 0.074mm are accounted for the 85% of total ore particle, make copper sulfide
Mineral, pyrite, magnetic iron ore, gangue mineral are fully dissociated, and pH values of pulp regulator and pyrite inhibitor are added during ore grinding, are pressed
Raw ore meter per ton, the addition of lime is 1500g/t, and adding water, to size mixing to weight concentration be 38%, and the pH value of ore pulp is 8.5；
B, roughing：Based on raw ore per ton, to adding Isobutylxanthic acid 20g/t, collector and frother in the ore pulp after step A ore grindings
45g/t, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C, rougher concentration are regrinded：Rougher concentration in step B is regrinded, ore particle of the ore grinding to fineness less than 0.038mm is accounted for always
The 85% of ore particle, based on raw ore per ton, when regrinding add lime 400g/t, add water size mixing to weight concentration be 26%, slurry pH
It is 10；
D, rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds Isobutylxanthic acid 25g/t, collector and frother 40g/t, stirs 2min, carries out flotation, and flotation time is 8min, is obtained
Obtain shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, lime 280g/t, stirring is added
3min, adds Isobutylxanthic acid 15g/t, collector and frother 30g/t, stirs 2min, carries out flotation, and flotation time is 6min, is obtained
Obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, lime 150g/t is added, 3min is stirred,
Flotation is carried out, flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtain secondary fine
Concentrate selection and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures primary cleaning
Form closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, lime 300g/t is added, 3min is stirred, isobutyl is added
Base xanthate 5g/t, collector and frother 15g/t, stir 2min, carry out flotation, and flotation time is 6min, obtain shallow crust structures and scan
Chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned after chats merges and returned
Return Regrinding and form closed cycle
E, rougher tailings are scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
Medicine 10g/t, collector and frother 15g/t, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection chats and tail
Ore deposit；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add Isobutylxanthic acid 15g/t, collector and frother
10g/t, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, and once purging selection chats is returned
Return step B and form closed cycle, secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, amyl group xanthate 100g/t, methyl isobutyl carbinol is added
40g/t, stirs 2min, carries out flotation, and flotation time is 10min, obtains iron concentrate and desulfurization mine tailing, iron concentrate and shallow crust structures
Scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
Lime is pH values of pulp regulator and pyrite inhibitor, shallow crust structures roughing, shallow crust structures primary cleaning, secondary fine
Choosing, during shallow crust structures scan, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, different
Xanthogen acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；Roughing, once purging selection, it is secondary scan,
Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester
（It is trans）, 1,12- lauryl mercaptans mixture, secondary to scan during mine tailing selects sulphur, amyl group xanthate is to select sulphur collecting agent, methyl
Isobutyl carbinol is foaming agent.
Lime is made into the emulsion addition that weight concentration is 15% in step A, B, C, D, E；Collecting foaming in step B, D, E
Agent is directly added with stoste；Isobutylxanthic acid is made into weight concentration for 4% aqueous solution is added in step B, D, E；Amyl group in step E
Xanthate is made into weight concentration for 4% aqueous solution is added；Methyl isobutyl carbinol is directly added with stoste in step E.
Embodiment 3
The present embodiment head grade is copper 0.47%, and golden 0.15g/t, sulphur 5.34%, iron 10.86%, its material composition is as follows：Ore
Category hydrothermal solution thready pulse dissemination type copper deposit, metalliferous mineral is mainly pyrite, chalcopyrite, is secondly alpha chalcocite, vitreous copper, dodges zinc
Ore deposit, magnetic iron ore, bornite, rutile, ilmenite, a small amount of or micro marcasite, magnetic iron ore, limonite, galena, brightness molybdenum
Ore deposit etc., based on quartz, feldspar, next has sericite, hornblend, staurolite, a small amount of calcite etc. to gangue mineral.In ore with
Based on chalcopyrite, alpha chalcocite, covellite content are less, and malachite is micro；Part chalcopyrite is in fine granular, and is disperseed very much,
Monomer dissociation is difficult with gangue, chalcopyrite distributed pole is uneven, is typically distributed in sparse disseminated, its particle is thinner, divided mostly
Cloth is between 0.005~0.15mm, wherein the particle less than 0.038mm accounts for 99.7%.
A kind of method for floating of fine-grained disseminated grain copper sulfide ore, it is characterised in that：Specifically include following steps：
A, ore grinding：Crushing raw ore, ore grinding, ore particle of the ore grinding to fineness less than 0.074mm are accounted for the 70% of total ore particle, make copper sulfide
Mineral, pyrite, magnetic iron ore, gangue mineral are fully dissociated, and pH values of pulp regulator and pyrite inhibitor are added during ore grinding, are pressed
Raw ore meter per ton, the addition of lime is 500g/t, and adding water, to size mixing to weight concentration be 32%, and the pH value of ore pulp is 7.5；
B, roughing：Based on raw ore per ton, to adding Isobutylxanthic acid 22g/t, collector and frother in the ore pulp after step A ore grindings
25g/t, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C, rougher concentration are regrinded：Rougher concentration in step B is regrinded, ore particle of the ore grinding to fineness less than 0.038mm is accounted for always
The 98% of ore particle, based on raw ore per ton, when regrinding add lime 600g/t, add water size mixing to weight concentration be 20%, slurry pH
It is 9.5；
D, rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds Isobutylxanthic acid 30g/t, collector and frother 20g/t, stirs 2min, carries out flotation, and flotation time is 8min, is obtained
Obtain shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, lime 300g/t, stirring is added
3min, adds Isobutylxanthic acid 12g/t, collector and frother 30g/t, stirs 2min, carries out flotation, and flotation time is 6min, is obtained
Obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, lime 200g/t is added, 3min is stirred,
Flotation is carried out, flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtain secondary fine
Concentrate selection and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures primary cleaning
Form closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, lime 280g/t is added, 3min is stirred, isobutyl is added
Base xanthate 5g/t, collector and frother 15g/t, stir 2min, carry out flotation, and flotation time is 6min, obtain shallow crust structures and scan
Chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned after chats merges and returned
Return Regrinding and form closed cycle
E, rougher tailings are scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
Medicine 12g/t, collector and frother 18g/t, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection chats and tail
Ore deposit；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add Isobutylxanthic acid 13g/t, collector and frother
12g/t, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, and once purging selection chats is returned
Return step B and form closed cycle, secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, amyl group xanthate 50g/t, methyl isobutyl carbinol is added
35g/t, stirs 2min, carries out flotation, and flotation time is 10min, obtains iron concentrate and desulfurization mine tailing, iron concentrate and shallow crust structures
Scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
Lime is pH values of pulp regulator and pyrite inhibitor, shallow crust structures roughing, shallow crust structures primary cleaning, secondary fine
Choosing, during shallow crust structures scan, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, different
Xanthogen acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；Roughing, once purging selection, it is secondary scan,
Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester
（It is trans）, 1,12- lauryl mercaptans mixture, secondary to scan during mine tailing selects sulphur, amyl group xanthate is to select sulphur collecting agent, methyl
Isobutyl carbinol is foaming agent.
Lime is made into the emulsion addition that weight concentration is 5% in step A, B, C, D, E；Collector and frother in step B, D, E
Directly added with stoste；Isobutylxanthic acid is made into weight concentration for 1% aqueous solution is added in step B, D, E；Amyl group is yellow in step E
Medicine is made into weight concentration for 1% aqueous solution is added；Methyl isobutyl carbinol is directly added with stoste in step E.
Embodiment 4
The present embodiment head grade is copper 1.25%, and golden 0.37g/t, sulphur 15.07%, iron 22.96%, its material composition is as follows：Ore
Belong to dissemination type copper mine, metalliferous mineral is mainly pyrite, chalcopyrite, be secondly alpha chalcocite, vitreous copper, magnetic iron ore, side
Lead ore, molybdenite etc., gangue mineral are sericite, hornblend, calcite etc. based on quartz, feldspar, secondly.With Huang in ore
Based on copper mine, alpha chalcocite, covellite content are less, and part chalcopyrite is difficult monomer solution in fine granular with part pyrite
From chalcopyrite particle is distributed between 0.005~0.15mm mostly, wherein the ore particle less than 0.038mm accounts for 93.1%.
A kind of method for floating of fine-grained disseminated grain copper sulfide ore, it is characterised in that：Specifically include following steps：
A, ore grinding：Crushing raw ore, ore grinding, ore particle of the ore grinding to fineness less than 0.074mm are accounted for the 90% of total ore particle, make copper sulfide
Mineral, pyrite, magnetic iron ore, gangue mineral are fully dissociated, and pH values of pulp regulator and pyrite inhibitor are added during ore grinding, are pressed
Raw ore meter per ton, the addition of lime is 1300g/t, and adding water, to size mixing to weight concentration be 40%, and the pH value of ore pulp is 9；
B, roughing：Based on raw ore per ton, to adding Isobutylxanthic acid 30g/t, collector and frother in the ore pulp after step A ore grindings
50g/t, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C, rougher concentration are regrinded：Rougher concentration in step B is regrinded, ore particle of the ore grinding to fineness less than 0.038mm is accounted for always
The 91% of ore particle, based on raw ore per ton, when regrinding add lime 800g/t, add water size mixing to weight concentration be 28%, slurry pH
It is 10.5；
D, rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds Isobutylxanthic acid 22g/t, collector and frother 38g/t, stirs 2min, carries out flotation, and flotation time is 8min, is obtained
Obtain shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, lime 150g/t, stirring is added
3min, adds Isobutylxanthic acid 20g/t, collector and frother 25g/t, stirs 2min, carries out flotation, and flotation time is 6min, is obtained
Obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, lime 200g/t is added, 3min is stirred,
Flotation is carried out, flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtain secondary fine
Concentrate selection and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures primary cleaning
Form closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, lime 200g/t is added, 3min is stirred, isobutyl is added
Base xanthate 14g/t, collector and frother 18g/t, stir 2min, carry out flotation, and flotation time is 6min, obtain shallow crust structures and scan
Chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned after chats merges and returned
Return Regrinding and form closed cycle
E, rougher tailings are scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
Medicine 13g/t, collector and frother 30g/t, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection chats and tail
Ore deposit；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add Isobutylxanthic acid 14g/t, collector and frother
20g/t, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, and once purging selection chats is returned
Return step B and form closed cycle, secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, amyl group xanthate 120g/t, methyl isobutyl carbinol is added
60g/t, stirs 2min, carries out flotation, and flotation time is 10min, obtains iron concentrate and desulfurization mine tailing, iron concentrate and shallow crust structures
Scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
Lime is pH values of pulp regulator and pyrite inhibitor, shallow crust structures roughing, shallow crust structures primary cleaning, secondary fine
Choosing, during shallow crust structures scan, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, different
Xanthogen acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；Roughing, once purging selection, it is secondary scan,
Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester
（It is trans）, 1,12- lauryl mercaptans mixture, secondary to scan during mine tailing selects sulphur, amyl group xanthate is to select sulphur collecting agent, methyl
Isobutyl carbinol is foaming agent.
Lime is made into the emulsion addition that weight concentration is 12% in step A, B, C, D, E；Collecting foaming in step B, D, E
Agent is directly added with stoste；Isobutylxanthic acid is made into weight concentration for 5% aqueous solution is added in step B, D, E；Amyl group in step E
Xanthate is made into weight concentration for 5% aqueous solution is added；Methyl isobutyl carbinol is directly added with stoste in step E.
Fig. 1 and Fig. 2 is shown in method for floating of the invention and the technological process of existing method for floating respectively, embodiment 1~4 with it is existing
The result of the test for having method for floating shows, method for floating copper recovery of the invention is respectively 91.30%, 92.06%, 90.73%,
94.30%, gold recovery is respectively 80.14%, 79.86%, 78.86%, 85.30%, of the invention compared with existing method for floating
In the case where copper concentrate copper grade is suitable, copper recovery is respectively increased 4.06%, 5.28%, 3.95%, 5.88%, gold to method for floating
The rate of recovery is respectively increased 8.42%, 4.22%, 4.55%, 5.21%；In the case where iron concentrate sulfur grade is suitable, sulfur recovery rate difference
It is 78.81%, 77.60%, 74.09%, 80.21%, sulfur recovery rate is respectively increased 1.07%, 1.96%, 0.63%, 0.29%, and technique
Flow is scientific and reasonable, and regime of agent is simply efficient.
Above-described is only preferred embodiments of the invention, and technical scheme is not limited thereto, it should be pointed out that
To those skilled in the art, under technical inspiration provided by the present invention, as the common knowledge of this area, also
Other equivalent modifications and improvement can be made, protection scope of the present invention is also should be regarded as.
Table one
。
Claims (9)
1. a kind of method for floating of fine-grained disseminated grain copper sulfide ore, it is characterised in that：Specifically include following steps：
A. ore grinding：By crushing raw ore, ore grinding, copper sulfide mineral, pyrite, magnetic iron ore, gangue mineral is set fully to dissociate, ore grinding
When add pH values of pulp regulator and pyrite inhibitor, based on raw ore per ton, the addition of lime is 500~1500g/t, is added water
It is 32-40% to size mixing to weight concentration, and the pH value of ore pulp is 7.5~9；
B. roughing：Based on raw ore per ton, to adding 20~30g/t of Isobutylxanthic acid, collecting foaming in the ore pulp after step A ore grindings
20~50g/t of agent, stirs 2min, carries out roughing, and the roughing time is 10min, obtains rougher concentration and rougher tailings；
C. rougher concentration is regrinded：Rougher concentration in step B is regrinded, based on raw ore per ton, when regrinding add lime 500~
800g/t, add water size mixing to weight concentration be 20~28%, slurry pH be 8.5~10.5；
D. rougher concentration shallow crust structures flotation：Shallow crust structures roughing is carried out to the rougher concentration after being regrinded in step C, by original per ton
Ore deposit meter, adds 20~30g/t of Isobutylxanthic acid, 20~40g/t of collector and frother, stirs 2min, carries out flotation, and flotation time is
8min, obtains shallow crust structures rougher concentration and rougher tailings；
Shallow crust structures primary cleaning is carried out to shallow crust structures rougher concentration, based on raw ore per ton, 100~300g/t of lime is added,
Stirring 3min, adds 10~20g/t of Isobutylxanthic acid, 20~30g/t of collector and frother, stirs 2min, flotation is carried out, during flotation
Between be 6min, obtain primary cleaning concentrate and primary cleaning chats；
Recleaning is carried out to shallow crust structures primary cleaning concentrate, based on raw ore per ton, 100~300g/t of lime, stirring is added
3min, carries out flotation, and flotation time is 6min, without Isobutylxanthic acid and collector and frother during recleaning, obtains
Recleaning concentrate and recleaning chats, recleaning concentrate are final concentrate, recleaning middling recurrence shallow crust structures one
Secondary selected formation closed cycle；
Shallow crust structures rougher tailings is scanned, based on raw ore per ton, 100~300g/t of lime is added, 3min, addition is stirred
5~15g/t of Isobutylxanthic acid, 10~20g/t of collector and frother, stir 2min, carry out flotation, and flotation time is 6min, obtain
Shallow crust structures scan chats and shallow crust structures scan mine tailing（Iron concentrate）, shallow crust structures primary cleaning chats and shallow crust structures are scanned
Chats returns to Regrinding and forms closed cycle after merging
E. rougher tailings is scanned：Once purging selection is carried out to the rougher tailings in step B, based on raw ore per ton, addition isobutyl group is yellow
10~15g/t of medicine, 10~20g/t of collector and frother, stir 2min, are scanned, and flotation time is 6min, obtain once purging selection
Chats and mine tailing；
Once purging selection mine tailing is carried out it is secondary scan, based on raw ore per ton, add 10~15g/t of Isobutylxanthic acid, collecting foaming
10~20g/t of agent, stirs 2min, is scanned, and flotation time is 4min, and acquisition is secondary to scan chats and mine tailing, once purging selection
Middling recurrence step B simultaneously forms closed cycle, and secondary middling recurrence once purging selection of scanning forms closed cycle；
Desulfurization flotation is carried out to secondary mine tailing of scanning, based on raw ore per ton, 50~120g/t of amyl group xanthate, methyl-isobutyl is added
20~60g/t of methyl alcohol, stir 2min, carry out flotation, flotation time is 10min, obtain iron concentrate and desulfurization mine tailing, iron concentrate with
Shallow crust structures scan mine tailing（Iron concentrate）Final iron concentrate is merged into, desulfurization mine tailing is discarded as true tailings.
2. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 1, it is characterised in that：The lime is
PH values of pulp regulator and pyrite inhibitor, the shallow crust structures roughing, shallow crust structures primary cleaning, recleaning, copper sulphur content
In scanning, Isobutylxanthic acid is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid
Acrylonitrile ester（It is trans）, 1,12- lauryl mercaptans mixture；The roughing, once purging selection, it is secondary scan, isobutyl group
Xanthate is collecting agent, and collector and frother is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester（It is trans）、
The mixture of 1,12- lauryl mercaptan, secondary to scan during mine tailing selects sulphur, amyl group xanthate is to select sulphur collecting agent, methyl-isobutyl
Methyl alcohol is foaming agent.
3. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 2, it is characterised in that：The collecting rises
Infusion is allyl sulfide for isobutyl carbamate, isopropyl xanthan acid propylene nitrile ester（It is trans）, isopropyl xanthan acid propylene nitrile
Ester（It is trans）, 1,12- dodecanedithiols mixture（Mixed uniformly liquid）, three's mass ratio is 7：2：1, collecting rises
Infusion is directly added with stoste.
4. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 3, it is characterised in that：The lime is matched somebody with somebody
Into the emulsion addition that weight concentration is 10~15%.
5. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 4, it is characterised in that：The isobutyl group
Xanthate is made into the solution addition that weight concentration is 1~5%.
6. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 5, it is characterised in that：The amyl group is yellow
Medicine is made into the solution addition that weight concentration is 1~5%.
7. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 6, it is characterised in that：The methyl is different
Butyl carbinol is directly added with stoste.
8. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 7, it is characterised in that：The step A
In crushing raw ore, ore grinding to fineness account for the 70~90% of total ore particle less than the ore particle of 0.074mm.
9. a kind of method for floating of fine-grained disseminated grain copper sulfide ore as claimed in claim 8, it is characterised in that：The step C
In rougher concentration ore grinding to fineness accounts for the 80~98% of total ore particle less than the ore particle of 0.038mm again.
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