CN110292984A - The embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper - Google Patents
The embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper Download PDFInfo
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- CN110292984A CN110292984A CN201910605412.0A CN201910605412A CN110292984A CN 110292984 A CN110292984 A CN 110292984A CN 201910605412 A CN201910605412 A CN 201910605412A CN 110292984 A CN110292984 A CN 110292984A
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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
- 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
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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
- B03D1/014—Organic compounds containing phosphorus
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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
- B03D1/02—Froth-flotation processes
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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
- B03D1/02—Froth-flotation processes
- B03D1/028—Control and monitoring of flotation processes; computer models therefor
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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
Abstract
The present invention relates to a kind of embedding cloth type copper sulfide ore substep grinding flotation methods of coarse grain containing vitreous copper, two kinds of ore pulps of overflow d and sand setting c are classified into after ore grinding, it forms two circuits and carries out that flash is floating and conventional flotation: flash flotation all the way respectively, highly selective collector is added 2. to the sand setting c ore pulp for entering single slot flash flotation machine, 3. foaming agent carries out, it preferentially sorts and obtains copper concentrate product 1 and flash tails report f, not only can guarantee copper concentrate product 1 concentrate grade and the rate of recovery again can be reduced conventional flotation give mine fluctuation, improve stability of the production process, realize " early receipts can be received " of valuable mineral in ore；Another way conventional flotation, to overflow d ore pulp addition calcium oxide, collecting performance collecting agent is 4., 3. foaming agent is stirred and carries out conventional flotation 1., by force, it is enriched to the gold, silver in overflow d, copper valuable metal in copper concentrate 2h, remove tailing 1, it has many advantages, such as that easy to operate, technique is unimpeded, is easy to industrial applications, the rate of recovery is high, production cost is low, comprehensive benefit is good, the ore dressing application particularly suitable for the embedding cloth type copper sulfide ore of the coarse grain of type containing vitreous copper.
Description
Technical field
The present invention relates to a kind of substep grinding flotation methods of embedding cloth type copper sulfide ore of the coarse grain of type containing vitreous copper, suitable for containing
The ore dressing application of the embedding cloth type copper sulfide ore of vitreous copper type coarse grain.
Background technique
In copper sulfide ore, copper mainly has chalcopyrite, vitreous copper, alpha chalcocite, bornite based on copper sulfide mineral
And covellite etc., copper sulfide ore is often again multi mineral symbiosis, not only containing there are many useful, recyclable copper-sulphide ores
Object also contains a large amount of gangue mineral, therefore in order to obtain the copper concentrate that purity is higher, is directly used in smelting, needs to ore
In copper mineral be enriched with, wherein flotation is a kind of more common method.Effort through ore dressing scientific and technical personnel, for sulphur
The flotation for changing Copper Ores, floatation process, in terms of research have been relatively mature, but it is thick for certain high-grades
The special copper sulfide ore of the embedding cloth type of grain, copper mineral is mainly with the type copper sulphides ore such as vitreous copper, alpha chalcocite and covellite
Preservation, since itself ore properties is more crisp, legibility is from and because big with gangue difference of specific gravity, in addition raw ore during comminution
Cupric is high, so there are the following problems for the special copper sulfide ore flotation of such embedding cloth type of high-grade coarse grain in practice: first is that being permitted
Mostly the coarse grain mineral of monomer dissociation enter sand setting return ore grinding and lead to excessively crushing loss, and flotation recovery difficulty increases；Second is that
Flotation time caused by flotation flowsheet is unreasonable is insufficient, causes valuable mineral to run tail serious；Third is that using traditional copper-separating process
And medicament can not solve the efficient synthetical recovery of valuable mineral in this type copper sulphide ore.
It solves the above problems thus, applicant has fixed be classified to the embedding cloth type copper sulfide ore of coarse grain containing vitreous copper and sink
Sand flash flotation+differentiation administration flotation Research idea, to " copper sulfide ore-dressing technique " subject retrieval to Chinese patent 3:
That is CN201811131253 discloses a kind of " side that microfine copper-sulphide ores flotation recovery rate is improved using carrying magnetic hydrophobic granule
Method ", it is first to roughly grind the thinner copper-sulphide ores of disseminated grain size, and conventional dose is added and carries out flotation, then that tailing is levigate, is added
Enter and is difficult to recycle under the conditions of conventional flotation with magnetic ferroso-ferric oxide and the flotation of Styrene And Butyl-acrylate compound particle
Microfine copper sulfide mineral recycling；CN201710322261 discloses " a kind of to improve microfine copper-sulphide ores floatation indicators
Beneficiation method ", it at concentration is the molten of the critical micelle concentration of surfactant that it, which is surfactant formulatory by that will charge,
Liquid stirs the miniature foam for generating electrification in agitator high speed, and miniature foam is introduced microfine copper-sulphide ores flotation system,
By regulating and controlling ore pulp property, so that the miniature foam of electrification is selectively attached to copper sulfide mineral surface by electrostatic interaction, strengthen
Its surface hydrophobic, to improve the recovery rate in ore-dressing of microfine copper-sulphide ores；CN201410393988 discloses a kind of " vulcanization
Copper ore floatation separation method ", it be will contain Cu in mass and be 0.25%~0.37% containing easy argillization gangue mineral copper sulfide
Mine, it is 65%~80% that ore grinding causes grain fineness to be less than 0.074mm in mass, and the mass percent concentration for adjusting ore pulp is 25%
~35%, the calcium oxide that 800g/t~1500g/t is added in ore pulp is the inhibitor of troilite, and 150g/t is added in ore pulp
~260g/t calgon and sodium humate combined modifier add 80g/t~120g/t by ethyl ammonia sulfate, first in ore pulp
The combined capturing and collecting agent that base dibenzylsulfide nitrogen ester, transformer oil, terpenol form, realizes the FLOTATION SEPARATION of copper sulfide and gangue mineral.
A kind of " high arsenic high-carbon difficulty choosing is disclosed to " copper+flash flotation " subject retrieval to Chinese patent 6: i.e. CN201810970721
Gold mine efficient flotation separation technique ", comprising: flash flotation technique, controling differential flotation process for copper, ramified flotation technique, bulk concentrate select work again
Skill, the efficient flotation separation technique are suitable for the high arsenic high-carbon microfine that high arsenic high-carbon refractory gold ore, especially gold grade are 2-3g/t
The refractory gold ore of altered rock-type, floatation indicators are stablized, and efficiently solve the problems, such as that high arsenic high-carbon refractory gold ore floatation indicators are lower；
CN201710587075 discloses " a kind of beneficiation method that copper is recycled from blowing slag ", it includes: (1) blowing slag through one section of ball milling
Enter one section of cyclone classification after machine ore grinding, one section of classification sand setting being classified obtains the first concentrate and first through flash flotation
Tailing；(2) one sections of cyclone overflow products obtain the second concentrate and one roughing tailing, one roughing tailing warp through one roughing
Two sections of cyclone classifications obtain two sections of classification sand settings, and two sections of classification sand settings are back to two sections of cyclones after two sections of ball mill ore grindings
Classification；(3) two sections of cyclone overflow products obtain the first rough concentrate and secondary rougher tailings, the first rough concentrate warp through secondary roughing
It is selected to obtain third concentrate and the second tailing；(4) secondary rougher tailings through once purging selection and it is secondary scan, obtain true tailings,
True tailings is concentrated, obtains dewatered tailings after filtering；(5) the first, second, and third concentrate is merged into final concentrate, finally
Concentrate is concentrated, obtains copper concentrate product after filtering；CN201710469328 discloses a kind of " copper sulfide that disseminated grain size is fine
Mine sorting process ", it is that collecting agent is added among rough grinding pass, and medicament is made sufficiently to act on the fresh surface of mineral, is improved
Medicament obtains the part copper mineral of monomer dissociation by fast-flotation in the functioning efficiency of mineral surfaces, rough concentrate using
The selected operation of revolving speed obtains high-grade copper concentrate 1, chats 1 and chats 2 in low concentration twice, and rougher tailings scans work by three sections
Industry obtains chats 3, and chats 1, chats 2 and chats 3 are combined into Ultrafine Grinding operation, and Ultrafine Grinding product is carried out regrinding selected I, be regrinded
Selected II operation obtains copper concentrate 2；CN201610406171 discloses the " side of a kind of whirlpool furnace Water Quenching Slag recycling gold, silver and copper
Method ", it is completed by slag mine ball milling, grading and flotation of ore pulp process；CN201510789291 discloses " a kind of low-grade
The beneficiation method of copper-sulphide ores ", it includes ore grinding, Jia Shui, lime, butyl ammonium aerofloat；Flash flotation adjusts pH value, adds MIBC；Slightly
I and roughing II are selected, to flash tails report plus modified butyl ammonium aerofloat, MIBC；Ore grinding again rougher concentration will carry out twice；It is selected
I, add lime to adjust pH value to the ore particle powder B ore pulp after regrinding, adds waterglass；Selected II, any medicament is not added；I is scanned, to
II tailing of roughing adds vulcanized sodium, butyl ammonium aerofloat, MIBC；II is scanned, to I tailing addition butyl ammonium aerofloat, MIBC is scanned, it has
Target minreal flotation efficiency is high, floatability is good and monomer dissociation mineral priority reclamation, avoidable Precious Metals are in circuit
In enrichment and cross that crushing phenomenon occurs, mineral comprehensive recoveries is high, flotation pulp environment is good, rough concentrate yield is high, has dissociated
Mineral priority reclamation, effectively recycle refractory copper ore object and the advantages that intergrowth, Precious Metals high efficiente callback, be suitable for handling embedding
The non-uniform copper sulfide mineral application containing noble metal of cloth granularity.Phase is obtained to " copper-sulphide ores and stepped-flotation separation " subject retrieval
Close six, document: i.e. " REPROCESSING FOR HIGH-SULPHUR COPPER diffeential floatation middling regrinding and reprocessing technical study and discussion ", it is directed to Tongshan Copper
Green ore property varies widely, and sulfur-bearing significantly increases, and existing mineral processing circuit has been difficult to adapt to, and is tied according to test
Fruit, the technique for proposing Two stage preferential flotation, middling regrinding and reprocessing, which taken excellent under appropriate alkaline condition
The substep sorting process that first flotation and iso flotability flotation combine both had prevented the overground of different copper sulfide minerals and had owed mill, protected
It demonstrate,proves the early of copper and receives more receipts, in turn avoid a large amount of sulphur iterative cycles in selecting copper circuit, accomplish that early lose is lost fastly, preferably adapted to original
Mine property obtains more satisfied sorting index, realizes the low medicine consumption of high sulfur copper ore stone and sorts separation；(2) " certain refractory copper oxide
Mine Two stage preferential flotation and Treatment of Middling technical study ", it is high for certain refractory oxidized copper ore oxygenation efficiency and Percentage bound, raw ore
Grade is low, and sorting index is undesirable, in order to improve copper concentrate index, proposes Two stage preferential flotation technique, compares chats not
Mill, regrinding and reconcentration and chats leach three kinds of schemes, it is believed that chats leaching effect is best, and the characteristics of technique is preferential using substep
Flotation can recycle the copper sulfide and copper oxide easily selected as early as possible, and can prevent overground；Up to 26.35%, the rate of recovery reaches Cu Concentrate Grade
70%；(3) " Tibet refractory copper oxide ores stone float test " is high oxidation rate, disseminated grain size for Tibet Copper Ores
Carefully, the refractory oxidized copper ore of the easy argillization of gangue mineral, copper grade 1.76%, copper oxygenation efficiency is up to 44.32%, using vulcanization
Copper mineral and copper oxide mineral stepped-flotation separation-mixing cleaning technological flowasheet have carried out float test, the results showed that ore is in grinding fineness
It using waterglass as the inhibitor of sludge and dispersing agent, amyl group xanthate is collecting agent, vulcanized sodium in the case of accounting for 85% for -0.074mm
Vulcanizing agent, ammonium sulfate for copper oxide mineral are coactivator, terpenic oil is foaming agent, sweep flow processing by 2 thick 2 essences 2,
Obtaining copper grade is 21.19%, the copper concentrate that copper recovery is 78.74%；(4) " Yunnan water source area cupric oxide ore
Beneficiation test ", it is 0.88% for Yunnan water source Copper Ores copper grade, and 56.6% copper exists with copper sulphide form,
43.4% copper exists in the form of copper oxide, and ore mineral complicated composition, argillization phenomenon are serious, has carried out first floating cupric sulfide mine
Object again copper oxide mineral floatation process flow test, the results showed that, grinding fineness be -200 mesh account for 80% under the conditions of, with
CaO (being added in grinding machine) and waterglass are inhibitor, butyl xanthate is collecting agent through 1 thick 2 smart copper sulfide flotation, copper sulfide flotation tail
For mine after hydrocyclone desliming, sand setting is that collecting agent is swept through 1 thick 2 essence 2 using vulcanized sodium as activator, sodium alkyl hydroxamate+butyl xanthate
Copper oxide flotation, the mixing copper concentrate copper grade of acquisition is 20.13%, the rate of recovery 72.81%, through waterpower before copper oxide flotation
Cyclone desliming alleviates circulation of the sludge in ore pulp, accumulation phenomenon, and concentrate is made to be increased to three-level product by level Four product.Exist above
The special copper sulfide ore flotation that first public publication technical solution cannot or be difficult to solve the embedding cloth type of high-grade coarse grain exists
The problem of.
Researching and developing one kind embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper thus just seems especially urgent.
Summary of the invention
The task of the present invention is for overcome the deficiencies in the prior art, provide a kind of coarse grain containing vitreous copper embedding cloth type copper sulfide
Ore substep grinding flotation method, not only had easy to operate, technique is unimpeded, the tool rate of recovery is high again for easy industrialization, stability by force, be produced into
This is low.
The task of the present invention is by the following technical programs to complete:
A kind of embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper is that being classified desilting flash flotation adds
Differentiation administration: two kinds of ore pulps of overflow d and sand setting c are classified into after ore grinding, it is floating and conventional floating that two circuits of formation carry out flash respectively
Choosing: flash flotation all the way, to enter single slot flash flotation machine sand setting c ore pulp add highly selective collector 2., foaming agent 3. into
Row preferentially sorts and obtains copper concentrate product 1 and flash tails report f, both can guarantee concentrate grade and the recycling of copper concentrate product 1
Rate can be reduced conventional flotation again and fluctuate to mine, improve stability of the production process, realize " can receive early receipts " of valuable mineral in ore；
Another way conventional flotation, collecting performance collecting agent is 4., 3. foaming agent is stirred and goes forward side by side 1., by force for Xiang Yiliu d ore pulp addition calcium oxide
Row conventional flotation is enriched to the gold, silver in overflow d, copper valuable metal in copper concentrate 2h, removes tailing 1.
Compared with the prior art, the present invention has the following advantages and effect:
(1) the coarse fraction copper sulfide ore " can receive, early receipts " for realizing dissociation, guarantees the concentrate grade of copper concentrate product 1
And the rate of recovery.
(2) reduce conventional flotation to fluctuate to mine, realize the stability of production process, realize useful in synthetical recovery ore
Mineral.
(3) can by ore pulp gold, silver and the valuable metals such as copper be enriched in copper concentrate.
(4) easy to operate, technique is unimpeded, is easy to industrial applications.
(5) rate of recovery is high, production cost is low, comprehensive benefit is good.
Detailed description of the invention
Fig. 1 is the embedding cloth type copper sulfide ore substep grinding flotation method of a kind of coarse grain containing vitreous copper proposed according to the present invention
Process flow diagram.
Respectively mark respectively indicates in figure:
1. calcium oxide 2. highly selective collector 3. foaming agent 4. strong collecting performance collecting agent
Specific embodiment
The embedding cloth type copper sulfide ore substep grinding flotation method of one kind coarse grain containing vitreous copper of the invention is that being classified desilting dodges
Fast flotation adds differentiation to be administered: two kinds of ore pulps of overflow d and sand setting c is classified into after ore grinding, it is floating that two circuits of formation carry out flash respectively
And conventional flotation: flash flotation all the way, to enter single slot flash flotation machine sand setting c ore pulp add highly selective collector 2., rise
3. infusion carries out, preferentially sort and obtain copper concentrate product 1 and flash tails report f, both can guarantee the concentrate product of copper concentrate product 1
Position and the rate of recovery can be reduced conventional flotation again and fluctuate to mine, improve stability of the production process, realize " the energy of valuable mineral in ore
Receive early receive "；Another way conventional flotation, collecting performance collecting agent is 4., 3. foaming agent carries out 1., by force for Xiang Yiliu d ore pulp addition calcium oxide
Conventional flotation is stirred and carried out, is enriched to the gold, silver in overflow d, copper valuable metal in copper concentrate 2h, removes tailing 1.
Technique of the invention may furthermore is that:
Specific process step is as follows with condition:
(1) ore grinding: grinding machine is added in raw ore and carries out conventional ore grinding, obtains ore milling product b；
(2) it is classified: ore milling product b being classified, is divided into two kinds of ore pulps of overflow d and sand setting c, wherein the ore grinding of overflow d
Fineness is that -0.074mm content accounts for 60~70%, and the grinding fineness of sand setting c is that -0.074mm content accounts for 10~15%；
(3-1) flash flotation: highly selective collector 2. LY01, blistering are added to the sand setting c for entering single slot flash flotation machine
3. 2# oil carries out flash flotation for agent, and wherein LY01 dosage is 15~20g/t, 2# oil dosage is 10~15g/t, and it is floating to obtain product flash
Select copper concentrate 1 and flash tails report f；
(3-2-1) stirring: Xiang Yiliu d adds calcium oxide, and 4. 3. 2# oil carries out collecting performance collecting agent for LY02, foaming agent 1., by force
Stirring, wherein 1. dosage is 1000~1500g/t to conventional flotation calcium oxide, and LY02 dosage 60~100g/t, 2# oil dosage is 10
~15g/t obtains conventional flotation and gives mine g；
(3-2-2) conventional flotation: by conventional flotation to mine g continue to use roughing, scan, the selected technique that combines carries out conventional choosing
Flotation obtains flotation concentrates 2 and true tailings 1.
The highly selective collector LY01 is with O- isopropyl-N- ethyl thiocarbamate, xanthogen formate
For component, 2:1 in mass ratio is mixed.
Strong collecting performance collecting agent LY02 is the 1:1 in mass ratio using n- ammonium dibutyl dithiophosphate, penta xanthate as component
It mixes.
Flash tails report f return step (2) ore grinding is regrinded and its subsequent handling, to improve resource utilization.
The specific embodiment of the invention is further illustrated combined with specific embodiments below.
High-grade copper sulfide ore main chemical compositions used: Cu 2.17%, TS 9.05%, copper mine owner in sample ore
There are alpha chalcocite, vitreous copper, covellite, enargite, chalcopyrite, bornite, is recyclable copper mineral.Other metal vulcanizations
If owner's pyrite, galena, zincblende, molybdenite equal size are less.For same Copper Ores, using the method for the present invention reality
It applies example and compares test using well known other methods.
Embodiment 1
Based on copper sulfide ore dry weight per ton, raw ore adds 1000g/t calcium oxide, is milled to ore discharge -74um through ball milling and accounts for about
25% enters hierarchy system, and classification sand setting fineness is that -74um accounts for 15%, and Grading Overflow fineness is that -74um accounts for 65%, is classified sand setting
It is directly entered flash flotation system, Grading Overflow enters conventional flotation system.Addition high selection collecting agent LY01 dosage is 15g/
T, foaming agent 2# oil dosage is 10g/t, and obtaining 1 yield of concentrate by flash flotation is 1.75%, be 39.82% containing copper grade,
Sulfur grade is 47.26%；Grading Overflow enters conventional flotation operation, and adding strong collecting performance collecting agent LY02 dosage is 30g/t, rises
Infusion 2# oil dosage is sorted after being 15g/t, and obtaining 2 yield of concentrate is 5.08%, is 25.58%, sulfur grade containing copper grade
It is 40.56%；Comprehensive concentrate containing copper grade is 29.26%, sulfur grade 42.28%, copper recovery 91.86%.
Embodiment 2
Based on copper sulfide ore dry weight per ton, raw ore adds 1000g/t calcium oxide, is milled to ore discharge -74um through ball milling and accounts for about
25% enters hierarchy system, and classification sand setting fineness is that -74um accounts for 15%, and Grading Overflow fineness is that -74um accounts for 64%, is classified sand setting
It is directly entered flash flotation system, Grading Overflow enters conventional flotation system.Addition high selection collecting agent LY01 dosage is 13g/
T, foaming agent 2# oil dosage is 12g/t, and obtaining 1 yield of concentrate by flash flotation is 1.73%, be 39.99% containing copper grade,
Sulfur grade is 48.01%；Grading Overflow enters conventional flotation operation, and adding strong collecting performance collecting agent LY02 dosage is 28g/t, rises
Infusion 2# oil dosage is sorted after being 18g/t, and obtaining 2 yield of concentrate is 4.83%, is 27.40%, sulfur grade containing copper grade
It is 46.22%；Comprehensive concentrate containing copper grade is 30.72%, sulfur grade 46.69%, copper recovery 91.52%.
Embodiment 3
Based on copper sulfide ore dry weight per ton, raw ore adds 1000g/t calcium oxide, is milled to ore discharge -74um through ball milling and accounts for about
25% enters hierarchy system, and classification sand setting fineness is that -74um accounts for 15%, and Grading Overflow fineness is that -74um accounts for 63%, is classified sand setting
It is directly entered flash flotation system, Grading Overflow enters conventional flotation system.Addition high selection collecting agent LY01 dosage is 15g/
T, foaming agent 2# oil dosage is 12g/t, and obtaining 1 yield of concentrate by flash flotation is 1.93%, be 38.36% containing copper grade,
Sulfur grade is 47.23%；Grading Overflow enters conventional flotation operation, and adding strong collecting performance collecting agent LY02 dosage is 35g/t, rises
Infusion 2# oil dosage is sorted after being 12g/t, and obtaining 2 yield of concentrate is 5.06%, is 24.95%, sulfur grade containing copper grade
It is 42.62%；Comprehensive concentrate containing copper grade is 28.65%, sulfur grade 43.89%, copper recovery 91.12%.
Comparative example 1
Based on copper sulfide ore dry weight per ton, raw ore adds 1000g/t calcium oxide, is milled to ore discharge -74um through ball milling and accounts for about
25% enters hierarchy system, is classified sand setting concentration about 75%, and fineness is that -74um accounts for about 15%, and classification sand setting directly returns to grinding machine.
Add strong collecting performance collecting agent LY02 dosage be 45g/t, foaming agent 2# oil dosage be 25g/t carry out conventional flotation, obtain copper essence
Mineral products rate is 7.19%, is 28.20% containing copper grade, sulfur grade 44.20%, copper recovery 90.07%.
Comparative example 2
Based on copper sulfide ore dry weight per ton, raw ore adds 1000g/t calcium oxide, is milled to ore discharge -74um through ball milling and accounts for about
25% enters hierarchy system, is classified sand setting concentration about 75%, and fineness is that -74um accounts for about 15%, and classification sand setting directly returns to grinding machine.
Addition high selection collecting agent LY01 dosage is 45g/t, foaming agent 2# oil dosage is that 25g/t carries out conventional flotation, obtains copper concentrate
Yield is 6.42%, is 30.50% containing copper grade, sulfur grade 45.23%, copper recovery 87.83%.
1 embodiment of table and comparative example test result
From test result it is found that using the method for the present invention, the copper recovery in concentrate is maintained at greater than 91%, relatively routine side
Copper recovery improves 1~3% in method.
As described above, the present invention can be better realized.Above-described embodiment is only the optimal embodiment of the present invention, but this
The embodiment of invention is simultaneously not restricted to the described embodiments, what other were done without departing from the spirit and principles of the present invention
Change, modification, replacement, combination, simplify, should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (5)
1. the embedding cloth type copper sulfide ore substep grinding flotation method of coarse grain containing vitreous copper, it is characterised in that classification desilting flash flotation adds
Differentiation administration: two kinds of ore pulps of overflow d and sand setting c are classified into after ore grinding, it is floating and conventional floating that two circuits of formation carry out flash respectively
Choosing: flash flotation all the way, to enter single slot flash flotation machine sand setting c ore pulp add highly selective collector 2., foaming agent 3. into
Row preferentially sorts and obtains copper concentrate product 1 and flash tails report f, both can guarantee concentrate grade and the recycling of copper concentrate product 1
Rate can be reduced conventional flotation again and fluctuate to mine, improve stability of the production process, realize " can receive early receipts " of valuable mineral in ore；
Another way conventional flotation, collecting performance collecting agent is 4., 3. foaming agent is stirred and goes forward side by side 1., by force for Xiang Yiliu d ore pulp addition calcium oxide
Row conventional flotation is enriched to the gold, silver in overflow d, copper valuable metal in copper concentrate 2h, removes tailing 1.
2. the method as described in claim 1, it is characterized in that specific process step is as follows with condition:
(1) ore grinding: grinding machine is added in raw ore and carries out conventional ore grinding, obtains ore milling product b；
(2) it is classified: ore milling product b being classified, is divided into two kinds of ore pulps of overflow d and sand setting c, wherein the grinding fineness of overflow d
60~70% are accounted for for -0.074mm content, the grinding fineness of sand setting c is that -0.074mm content accounts for 10~15%；
(3-1) flash flotation: adding highly selective collector to the sand setting c for entering single slot flash flotation machine, 2. LY01, foaming agent be 3.
2# oil carries out flash flotation, and wherein LY01 dosage is 15~20g/t, 2# oil dosage is 10~15g/t, obtains product flash flotation copper
Concentrate 1 and flash tails report f；
(3-2-1) stirring: Xiang Yiliu d adds calcium oxide, and 4. 3. 2# oil is stirred collecting performance collecting agent for LY02, foaming agent 1., by force
Mix, wherein conventional flotation calcium oxide 1. dosage be 1000~1500g/t, LY02 dosage 60~100g/t, 2# oil dosage be 10~
15g/t obtains conventional flotation and gives mine g；
(3-2-2) conventional flotation: conventional flotation is continued to use into roughing to mine g, scanned, selected combined technique to carry out conventional choosing floating
Choosing, obtains flotation concentrates 2 and true tailings 1.
3. it is method according to claim 1 or 2, it is characterized in that the highly selective collector LY01 is with O- isopropyl-N-
Ethyl thiocarbamate, xanthogen formate are component, and 2:1 in mass ratio is mixed.
4. it is method according to claim 1 or 2, it is characterized in that strong collecting performance collecting agent LY02 is with n- dibutyl dithio
Ammonium phosphate, penta xanthate are component, and 1:1 in mass ratio is mixed.
5. it is method according to claim 1 or 2, it is characterized in that flash tails report f return step (2) ore grinding is regrinded
And its subsequent handling, to improve resource utilization.
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