CN105268559B - The beneficiation method of low-grade copper sulfide ores - Google Patents
The beneficiation method of low-grade copper sulfide ores Download PDFInfo
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- CN105268559B CN105268559B CN201510789291.1A CN201510789291A CN105268559B CN 105268559 B CN105268559 B CN 105268559B CN 201510789291 A CN201510789291 A CN 201510789291A CN 105268559 B CN105268559 B CN 105268559B
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- roughing
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- ore
- mine tailing
- butyl ammonium
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- 238000000034 method Methods 0.000 title claims abstract description 30
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims abstract description 77
- 239000010949 copper Substances 0.000 claims abstract description 47
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 45
- 229910052802 copper Inorganic materials 0.000 claims abstract description 45
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 claims abstract description 25
- 238000005188 flotation Methods 0.000 claims abstract description 22
- 239000000843 powder Substances 0.000 claims abstract description 19
- 239000002245 particle Substances 0.000 claims abstract description 16
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical class CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 claims abstract description 14
- WVYWICLMDOOCFB-UHFFFAOYSA-N 4-methyl-2-pentanol Chemical compound CC(C)CC(C)O WVYWICLMDOOCFB-UHFFFAOYSA-N 0.000 claims abstract description 12
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 12
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 12
- 239000004571 lime Substances 0.000 claims abstract description 12
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims abstract description 7
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 7
- 239000011734 sodium Substances 0.000 claims abstract description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000003814 drug Substances 0.000 claims abstract description 4
- 239000011521 glass Substances 0.000 claims abstract description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 13
- 238000013329 compounding Methods 0.000 claims description 4
- 230000004048 modification Effects 0.000 claims description 2
- 238000012986 modification Methods 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 15
- 239000010970 precious metal Substances 0.000 abstract description 7
- 238000010494 dissociation reaction Methods 0.000 abstract description 6
- 230000005593 dissociations Effects 0.000 abstract description 6
- 239000000178 monomer Substances 0.000 abstract description 6
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 5
- 239000011707 mineral Substances 0.000 abstract description 5
- 229910000510 noble metal Inorganic materials 0.000 abstract description 3
- 229910052569 sulfide mineral Inorganic materials 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 description 9
- 229910052737 gold Inorganic materials 0.000 description 6
- 239000010931 gold Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 235000019353 potassium silicate Nutrition 0.000 description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 description 4
- 238000000926 separation method Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 229910052951 chalcopyrite Inorganic materials 0.000 description 2
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 239000003002 pH adjusting agent Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 229910000906 Bronze Inorganic materials 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 240000002980 Tilia americana Species 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 229910001779 copper mineral Inorganic materials 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 229960004643 cupric oxide Drugs 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004886 process control Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The present invention relates to a kind of beneficiation method of low-grade copper sulfide ores, including processing step and condition：Ore grinding, adds water, lime, butyl ammonium aerofloat are carried out；Flash flotation, adjusts pH value, plus MIBC is carried out；Roughing I and roughing II, are carried out to flash tails report plus modified butyl ammonium aerofloat, MIBC；Ore grinding, rougher concentration will be carried out twice again；Selected I, ore particle powder B ore pulps plus lime regulation pH value to after regrinding, the glass that adds water are carried out；Selected II, carried out without any medicament；I is scanned, adding vulcanized sodium, butyl ammonium aerofloat, MIBC to the mine tailing of roughing II is carried out；Scan II, carried out to I mine tailing addition butyl ammonium aerofloat, MIBC is scanned, it has that target minreal flotation efficiency is high, floatability is good and monomer dissociation mineral priority reclamation, can avoid Precious Metals enrichment in the loop and cross crushing phenomenon and occur, mineral comprehensive recovery is high, flotation pulp environment is good, rough concentrate yield height, the mineral priority reclamation dissociated, the advantages of refractory copper ore thing and intergrowth, Precious Metals high efficiente callback is effectively reclaimed, suitable for the processing uneven copper sulfide mineral application containing noble metal of disseminated grain size.
Description
Technical field
The present invention relates to a kind of beneficiation method, more particularly to a kind of beneficiation method of low-grade copper sulfide ores, suitable for processing
The flotation applications of the uneven copper sulfide mineral containing noble metal of disseminated grain size.
Background technology
Low-grade copper sulfide ores sorting process has two kinds of FLOTATION SEPARATION and wet-leaching.Wet-leaching technique, which has, saves energy
The advantages of source, high association valuable element comprehensive utilization ratio, but by environmental protection, weather conditions, ore properties, process control etc. because
Element restriction.Floatation separation process is main based on preferential, mixing-preferential and iso-floatability circuit flotation flowsheet, and complex ore is sometimes
Individually handled using stage grinding, stage grading, chats and mud-sand sorting etc..Grain size number is small, the complicated sulphur of Khenpo feature
Change the rate of recovery that copper mine is difficult to ensure copper concentrate product copper using ore grinding (fine grinding)-controling differential flotation process for copper, the particularly expensive gold of association
Effective recovery of category；Using ore grinding (corase grind)-flotation-coarse concentrate regrinding technological process, the monomer dissociation of this in rough concentrate
Copper mineral is milled to flotation granularity lower limit excessively during regrinding, easily and surface is contaminated and is difficult to reclaim.In addition, often through
Addition activator changes flotation system current potential to strengthen the floatability of copper mine, reaches the rate of recovery of increase copper metal element, and lives
The size of agent consumption directly affects final index.
It can be seen that, the Copper sulfide ore of Precious Metals thin for disseminated grain size, develop that sorting result is good, conformability is strong,
The valuable elements such as unit cost low ore-dressing technique high efficiente callback copper, gold, are conducive to improving comprehensive resource utilization rate, are conducive to increasing
Plus the competitiveness of enterprise.
Seek a kind of beneficiation method of low-grade copper sulfide ores for this and just seem particularly urgent.
The content of the invention
The task of the present invention is that there is provided a kind of ore dressing side of low-grade copper sulfide ores in order to overcome the deficiencies in the prior art
Method.Copper metal recovery rate can be improved by providing one kind, and farthest can incidentally reclaim the beneficiation method of Precious Metals,
Improve Lean Copper Ores utilization rate
The task of the present invention is completed by the following technical programs：
The beneficiation method of low-grade copper sulfide ores, processing step is carried out with condition in the following order successively：
(1) ore grinding：Below based on raw ore dry weight per ton, by raw ore in mass ratio 1:0.6 adds water, then adds lime
1000~1500g, 5~6g of butyl ammonium aerofloat carry out ore grinding, obtain the ore particle powder A ore deposits that fineness accounts for 55.0~60.0% for -0.074mm
Slurry；
(2) flash flotation：The ore particle powder A pH values of pulp of ore grinding is adjusted to 8~9, addition MIBC10~20g carries out flash and floated
Choosing, obtains copper concentrate A and flash tails report；
(3) roughing I：Roughing I is carried out to 15~20g of the modified butyl ammonium aerofloat of flash tails report addition, MIBC10~20g,
Obtain the concentrate of roughing I and the mine tailing of roughing I；
(4) roughing II：8~10g of the modified butyl ammonium aerofloat of the mine tailing of roughing I addition, MIBC5~10g carry out roughing II, obtain thick
Select II concentrate and the mine tailing of roughing II；
(5) ore grinding again：The concentrate of roughing I and the concentrate of roughing II are merged and feeds ball mill and carries out ore grinding again, obtain fineness for-
0.074mm accounts for 80.0~85.0% ore particle powder B ore pulps；
(6) selected I：500~600g of ore particle powder B ore pulps addition lime to after regrinding adjusts pH value to 9~10, then adds
350~400g of waterglass carries out selected I, obtains selected I concentrate and selected I mine tailing；
(7) selected II：Selected II is carried out without any medicament to selected I concentrate, copper concentrate and selected II mine tailing is obtained；
(8) I is scanned：Carried out to 10~20g of the mine tailing of roughing II addition vulcanized sodium, 5~10g of butyl ammonium aerofloat, MIBC5~10g
I is scanned, obtains scanning I concentrate and scans I mine tailing；
(9) II is scanned：Carry out scanning II to I mine tailing addition butyl ammonium aerofloat, 5~10g, MIBC5~10g is scanned, scanned
II concentrate and true tailings.
Percentage involved in the present invention is weight percentage.
There is advantages below and effect compared with prior art：
1. target minreal flotation efficiency is high, floatability is good and target minreal priority reclamation of monomer dissociation, can avoid companion
The enrichment in the loop of raw noble metal and cross crushing phenomenon.Grinding machine corase grind-flash flotation joint work is added based on collecting agent
Artistic skill effectively avoids target minreal overground, fully reclaims the target minreal of monomer dissociation and ensures its quality.Collecting agent enters
On the one hand grinding machine can make collecting agent butyl ammonium aerofloat timely and effectively act on the fresh surface of target minreal, play protection in advance and make
With while can extend its action time, this slow feature of adaptation part target minreal planktonic performance improves target minreal flotation effect
Rate；On the other hand corase grind can avoid the target minreal particle of monomer dissociation because it is overground and caused by sludge loss, pass through and dodge
Fast flotation can get well floatability and the target minreal priority reclamation of monomer dissociation；In addition by appropriate reduction mog,
Precious Metals enrichment in the loop can be avoided and crushing phenomenon is crossed, comprehensive resource utilization rate is improved.
2. target minreal comprehensive recovery is high, flotation pulp environment is good, and rough concentrate yield is high.Floated based on yield extraction foam
Choosing-coarse concentrate regrinding technique dissociated by receipts more than intergrowth-depth-and selected separation process obtains qualified concentrate containing product, improves mesh
Mineral comprehensive recovery.Copper extractant (ZJ988) can be mutually reciprocal with mineral surfaces copper metal ion in modified butyl ammonium aerofloat
Should, and flotation solution system is transferred in the form of extracted species, increase the copper ion concentration of unit volume in flotation system, optimization is floating
Ore dressing starch environment, while can snap action Yu Liansheng body surface face, improve intergrowth the rate of recovery, increase rough concentrate yield,
Technique is selected by coarse concentrate regrinding again again, qualified copper concentrate product is obtained.
3. the target minreal priority reclamation dissociated, refractory copper ore thing and intergrowth are effectively reclaimed, it is ensured that association is expensive
Metal high efficiente callback.The application of grinding machine corase grind-flash flotation process integration is added based on collecting agent, it is ensured that the purpose ore deposit dissociated
Thing priority reclamation；Extract the application of froth flotation-coarse concentrate regrinding technique, it is ensured that refractory copper ore thing and intergrowth are also obtained effectively
Recovery, so that it is guaranteed that effective recovery of copper metal；In addition, the appropriate reasonable application for putting slightly selected mog and MIBC can be really
Protect Precious Metals high efficiente callback.
Brief description of the drawings
Fig. 1 is the beneficiation method process chart according to a kind of low-grade copper sulfide ores proposed by the present invention.
Each sign is represented respectively in accompanying drawing：
1. the concentrate 7. of 2. 6. roughing of ore particle powder A 3. copper concentrate A, 4. flash tails report, 5. roughing, I concentrate of raw ore II
The ore particle powder B 10. of II mine tailing of roughing I mine tailing, 8. roughing 9. scans I concentrate 11. and scans the selected bronze medal of I concentrate 13. of I mine tailing 12.
Selected I mine tailing 16. of selected II mine tailing 15. of concentrate 14. scans the true tailings a. lime b. butyl ammonium aerofloats of II concentrate 17.
C.MIBC d. are modified butyl ammonium aerofloat e. vulcanized sodium f. waterglass
Explanation is described in further detail below in conjunction with accompanying drawing.
Embodiment
As shown in figure 1, a kind of beneficiation method of low-grade copper sulfide ores of the present invention, successively by following processing step and bar
Part is carried out：
(1) ore grinding：Below based on raw ore dry weight per ton, by raw ore 1 in mass ratio 1:0.6 adds water, then adds lime
A1000~1500g, butyl ammonium aerofloat b5~6g carry out ore grinding, obtain the ore particle powder that fineness accounts for 55.0~60.0% for -0.074mm
A2 ore pulps；
(2) flash flotation：The ore particle powder A2 pH values of pulp of ore grinding is adjusted to 8~9, addition MIBCc10~20g carries out flash and floated
Choosing, obtains copper concentrate A3 and flash tails report 4；
(3) roughing I：Roughing is carried out to the modified butyl ammonium aerofloat d15 of the addition of flash tails report 4~20g, MIBCc10~20g
I, obtain the concentrate 5 of roughing I and the mine tailing 7 of roughing I；
(4) roughing II：The modified butyl ammonium aerofloat d8 of the mine tailing 7 of roughing I addition~10g, MIBCc5~10g carries out roughing II, obtains
To the concentrate 6 of roughing II and the mine tailing 8 of roughing II；
(5) ore grinding again：The concentrate 5 of roughing I and the concentrate 6 of roughing II are merged and feed ball mill progress ore grinding again, fineness is obtained
Accounted for for -0.074mm 80.0~85.0% ore particle powder B9 ore pulps；
(6) selected I：Ore particle powder B9 ore pulps addition lime a500~600g to after regrinding adjusts pH value to 9~10, then added
Glass f350~the 400g that adds water carries out selected I, obtains selected I concentrate 12 and selected I mine tailing 15；
(7) selected II：Selected II is carried out without any medicament to selected I concentrate 12, copper concentrate 13 and selected II is obtained
Mine tailing 14；
(8) I is scanned：To the mine tailing 8 of roughing II addition vulcanized sodium e10~20g, butyl ammonium aerofloat b5~10g, MIBCc5~10g
Progress scans I, obtains scanning I concentrate 10 and scans I mine tailing 11；
(9) II is scanned：Carry out scanning II to I mine tailing 11 addition butyl ammonium aerofloat b5~10g, MIBCc5~10g is scanned, obtain
Scan II concentrate 16 and true tailings 17.
Described modification butyl ammonium aerofloat d is by butyl ammonium aerofloat and copper extractant ZJ988 in mass ratio 2:1 compounding is formed.
Described selected I mine tailing 15 returns to roughing II and selected again.
Described selected II mine tailing 14 returns to selected I and selected again.
Described I concentrate 10 return roughing II of scanning is selected again.
It is described scan II concentrate 16 and be back to scan I and select again.
Embodiment 1：
Copper mine category low copper type chalcopyrite ore containing arsenic used, its chemical composition (wt%) is as follows：Cupric 0.48%, contains
Sulphur 4.38%, containing golden 0.19g/t, argentiferous 5.2g/t.Copper material phase analysis is as follows：Secondary copper sulfide accounts for 69.29%, chalcopyrite
18.10% is accounted for, cupric oxide accounts for 12.61%.
Based on raw ore dry weight per ton, raw ore 1 is added into regulator lime a1000g, butyl ammonium aerofloat b5g successively first, through ball
Grinding machine ore grinding to mog is the miberal powder grain A2 that -0.074mm accounts for 55.0%, adjusts pH to 8, adds foaming agent MIBCc10g,
Copper concentrate A3 and flash tails report 4 are obtained through flash flotation；Flash tails report 4 is obtained through the operation of roughing I and the operation of roughing II
To the concentrate 5 of roughing I, the concentrate 6 of roughing II and the mine tailing 7 of roughing I, the mine tailing 8 of roughing II；The mine tailing 8 of roughing II is through scanning I operation and scanning
II operation obtains scanning I concentrate 10, scans II concentrate 16 and scan I mine tailing 11, scan II mine tailing 16；The concentrate 5 of roughing I and roughing
II concentrate 6 be merged into ball mill again ore grinding to mog be -0.074mm account for 80.0% miberal powder grain B9, miberal powder grain B9 through essence
I and selected II is selected to obtain selected I concentrate 12 of copper, copper concentrate 13, selected I mine tailing 15, selected II mine tailing 14；The selected He of I mine tailing 15
Scan I concentrate 10 and merge and be back to roughing II, selected II mine tailing 14, scan II concentrate 16 and be back to a process successively, wherein
Collector modified butyl ammonium aerofloat d is added by collecting agent butyl ammonium aerofloat b and copper extractant ZJ988 in mass ratio=2:1 compounding is formed,
Modified butyl ammonium aerofloat d consumptions 15g, MIBCc10g；The modified butyl ammonium aerofloat d8g of the addition of roughing II, foaming agent MIBCc5g；I is scanned to add
Plus regulator vulcanized sodium e10g, collecting agent butyl ammonium aerofloat b5g, foaming agent MIBCc5g；Scan II addition collecting agent butyl ammonium aerofloat use
Measure 5g/t, foaming agent MIBC consumptions 5g/t；Selected I operation addition pH adjuster lime consumption 500g/t adjusts pH value to 9, disperses
Inhibitor waterglass consumption 350g/t.
Embodiment 2：Based on raw ore dry weight per ton, raw ore is added to regulator lime consumption 1500g/t and fourth successively first
Ammonium black powder consumption 6g/t, is that -0.074mm accounts for 60.0% by ball mill ore grinding to mog, ball mill ore discharging (pH=9) adds
Plus foaming agent MIBCc consumption 20g/t, obtain copper concentrate A3 and flash tails report 4 through flash flotation operation；Flash tails report
4 obtain the concentrate 5 of roughing I, the concentrate 6 of roughing II and the mine tailing 7 of roughing I, the mine tailing 8 of roughing II through the operation of roughing I and the operation of roughing II；Slightly
II mine tailing 8 is selected to obtain scanning I concentrate 10, scan II concentrate 16 and scan I mine tailing 11, most through scanning I operation and scanning II operation
Finality ore deposit 17；It is that -0.074mm accounts for 85.0% that the concentrate of roughing I and the concentrate of roughing II, which are merged into ball mill through regrinding to mog,
Afterwards, progress selected I and selected II obtains copper and selects I concentrate 12, copper concentrate 13 and selected II mine tailing 14 of selected I mine tailing 15, copper；It is selected
I mine tailing 15 and scan I concentrate 10 and merge and be back to roughing II, selected II mine tailing 14, scan II concentrate 16 and be back to one successively
Operation.Wherein, roughing I adds collector modified butyl ammonium aerofloat d by collecting agent butyl ammonium aerofloat and copper extractant ZJ988 in mass ratio
=2:1 compounding is formed, 20g, foaming agent MIBCc20g；The modified butyl ammonium aerofloat d10g, foaming agent MIBCc10g of the addition of roughing II；Sweep
Select I addition regulator vulcanized sodium e20g, collecting agent butyl ammonium aerofloat b10g, foaming agent MIBCc10g；Scan II operation addition collecting
Agent butyl ammonium aerofloat b10g, foaming agent MIBCc10g；Selected I addition pH adjuster lime a600g adjusts pH value to 10, disperses to suppress
Agent waterglass f400g.
Using above technical scheme, the main technique index that embodiment 1 is obtained is：Copper concentrate Cu grades 23.08%, Au product
Position 6.66g/t, copper recovery 86.92%, gold recovery 58.95%；Embodiment 2 only has dosing and mog and implementation
Example 1 is different, and other conditions are identical with embodiment 1, and the main technique index that embodiment 2 is obtained is：Copper concentrate Cu grades
21.78%, Au grade 6.09g/t, copper recovery 89.24%, gold recovery 62.47%.The implementation feelings of both examples above
Condition shows, the present invention can copper and Precious Metals element in high efficiente callback low-grade copper sulfide ores.
Each embodiment result of the test of table 1
Note *-unit is g/t.
The performance of both examples above shows, copper recovery be up to 85%~92% and copper concentrate copper content it is big
In 18%.
As described above, the present invention can be better realized.Above-described embodiment is only the present invention preferably embodiment, but this
The embodiment of invention is simultaneously not restricted to the described embodiments, and other are done under Spirit Essence and principle without departing from the present invention
Change, modify, replace, combine, simplify, should be equivalent substitute mode, be included in protection scope of the present invention.
Claims (6)
1. the beneficiation method of low-grade copper sulfide ores, is comprised the technical steps that with condition and based on raw ore dry weight per ton：
(1) ore grinding：By raw ore [1] in mass ratio 1:0.6 adds water, then adds lime [a] 1000~1500g, butyl ammonium aerofloat [b]
5~6g carries out ore grinding, obtains ore particle powder A [2] ore pulp that fineness accounts for 55.0~60.0% for -0.074mm；
(2) flash flotation：Ore particle powder A [2] pH values of pulp of ore grinding is adjusted to 8~9, addition MIBC [c] 10~20g carries out flash and floated
Choosing, obtains copper concentrate A [3] and flash tails report [4]；
(3) roughing I：Carried out to modified butyl ammonium aerofloat [d] 15~20g of flash tails report [4] addition, MIBC [c] 10~20g thick
I is selected, the concentrate of roughing I [5] and the mine tailing of roughing I [7] is obtained；
(4) roughing II：Modified butyl ammonium aerofloat [d] 8~10g of the mine tailing of roughing I [7] addition, MIBC [c] 5~10g carry out roughing II,
Obtain the concentrate of roughing II [6] and the mine tailing of roughing II [8]；
(5) ore grinding again：The concentrate of roughing I [5] and the concentrate of roughing II [6] are merged and feed ball mill progress ore grinding again, fineness is obtained
Accounted for for -0.074mm 80.0~85.0% ore particle powder B [9] ore pulp；
(6) selected I：Ore particle powder B [9] ore pulp addition lime [a] 500~600g to after regrinding adjusts pH value to 9~10, then adds
Glass [f] 350~400g that adds water carries out selected I, obtains selected I concentrate [12] and selected I mine tailing [15]；
(7) selected II：Selected II is carried out without any medicament to selected I concentrate [12], copper concentrate [13] and selected II is obtained
Mine tailing [14]；
(8) I is scanned：To the mine tailing of roughing II [8] addition vulcanized sodium [e] 10~20g, butyl ammonium aerofloat [b] 5~10g, MIBC [c] 5~
10g carries out scanning I, obtains scanning I concentrate [10] and scans I mine tailing [11]；
(9) II is scanned：Carry out scanning II to I mine tailing [11] addition butyl ammonium aerofloat [b] 5~10g, MIBC [c] 5~10g is scanned, obtain
To scanning II concentrate [16] and true tailings [17].
2. according to the method described in claim 1, it is characterized in that described modification butyl ammonium aerofloat [d] is extracted by butyl ammonium aerofloat and copper
Agent ZJ988 in mass ratio 2:1 compounding is formed.
3. according to the method described in claim 1, it is characterized in that described selected I mine tailing [15] return roughing II is selected again.
4. according to the method described in claim 1, it is characterized in that described selected II mine tailing [14] return selected I is selected again.
5. according to the method described in claim 1, it is characterized in that described I concentrate [10] return roughing II of scanning is selected again.
6. according to the method described in claim 1, it is characterized in that it is described scan II concentrate [16] and return scan I and select again.
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| CN105689146B (en) * | 2016-03-07 | 2017-10-17 | 紫金矿业集团股份有限公司 | It is a kind of by the Cu2+ pyrite activated and the low alkalinity flotation separation method of vitreous copper |
| CN106362868B (en) * | 2016-11-14 | 2019-03-08 | 玉溪矿业有限公司 | A kind of ore-dressing technique reducing content of magnesia in copper sulfide ore flotation concentrate |
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| CN108672101B (en) * | 2018-07-09 | 2021-04-20 | 玉溪矿业有限公司 | Method for activating and floating sulfur in copper sulfide and sulfur ore copper separation tailings |
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| CN112844857A (en) * | 2021-01-05 | 2021-05-28 | 广东省科学院资源综合利用研究所 | Ore dressing method for directionally enriching precious metals |
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| CN114798186A (en) * | 2022-04-29 | 2022-07-29 | 厦门紫金矿冶技术有限公司 | Flotation process for reducing fluorine content in copper sulfide concentrate |
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| JPS60220155A (en) * | 1984-04-17 | 1985-11-02 | Sumitomo Metal Mining Co Ltd | Differential flotation of complicated sulfide ore |
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| CN1157488C (en) * | 2002-06-11 | 2004-07-14 | 北京矿冶研究总院 | Copper extracting agent |
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