CN106391297A - Dressing method of copper tin sulphide ore - Google Patents
Dressing method of copper tin sulphide ore Download PDFInfo
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- CN106391297A CN106391297A CN201610812301.3A CN201610812301A CN106391297A CN 106391297 A CN106391297 A CN 106391297A CN 201610812301 A CN201610812301 A CN 201610812301A CN 106391297 A CN106391297 A CN 106391297A
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- ore
- copper
- ton
- sulphide
- sulphide ore
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- 238000000034 method Methods 0.000 title claims abstract description 48
- SEAVSGQBBULBCJ-UHFFFAOYSA-N [Sn]=S.[Cu] Chemical compound [Sn]=S.[Cu] SEAVSGQBBULBCJ-UHFFFAOYSA-N 0.000 title abstract 2
- 239000010949 copper Substances 0.000 claims abstract description 74
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 71
- 229910052802 copper Inorganic materials 0.000 claims abstract description 71
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims abstract description 22
- -1 ethionine ester Chemical class 0.000 claims abstract description 21
- 239000003112 inhibitor Substances 0.000 claims abstract description 21
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000012141 concentrate Substances 0.000 claims abstract description 18
- CONMNFZLRNYHIQ-UHFFFAOYSA-N 3-methylbutoxymethanedithioic acid Chemical compound CC(C)CCOC(S)=S CONMNFZLRNYHIQ-UHFFFAOYSA-N 0.000 claims abstract description 17
- 239000000463 material Substances 0.000 claims abstract description 12
- 230000005484 gravity Effects 0.000 claims abstract description 11
- 238000003801 milling Methods 0.000 claims abstract description 10
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000003756 stirring Methods 0.000 claims abstract description 6
- 238000005188 flotation Methods 0.000 claims description 39
- 239000003795 chemical substances by application Substances 0.000 claims description 31
- 238000000227 grinding Methods 0.000 claims description 21
- AFNRRBXCCXDRPS-UHFFFAOYSA-N tin(ii) sulfide Chemical compound [Sn]=S AFNRRBXCCXDRPS-UHFFFAOYSA-N 0.000 claims description 21
- JZRWCGZRTZMZEH-UHFFFAOYSA-N Thiamine Natural products CC1=C(CCO)SC=[N+]1CC1=CN=C(C)N=C1N JZRWCGZRTZMZEH-UHFFFAOYSA-N 0.000 claims description 18
- 229960003495 thiamine Drugs 0.000 claims description 18
- 235000019157 thiamine Nutrition 0.000 claims description 18
- 239000011721 thiamine Substances 0.000 claims description 18
- 239000004115 Sodium Silicate Substances 0.000 claims description 15
- 239000005864 Sulphur Substances 0.000 claims description 15
- 230000008569 process Effects 0.000 claims description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 15
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 15
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 11
- 239000002002 slurry Substances 0.000 claims description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 229910052742 iron Inorganic materials 0.000 claims description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 239000012991 xanthate Substances 0.000 claims description 2
- 238000005456 ore beneficiation Methods 0.000 claims 4
- 150000002148 esters Chemical class 0.000 claims 1
- KYMBYSLLVAOCFI-UHFFFAOYSA-N thiamine Chemical compound CC1=C(CCO)SCN1CC1=CN=C(C)N=C1N KYMBYSLLVAOCFI-UHFFFAOYSA-N 0.000 claims 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 abstract description 24
- 239000011593 sulfur Substances 0.000 abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 abstract description 9
- BWFPGXWASODCHM-UHFFFAOYSA-N copper monosulfide Chemical compound [Cu]=S BWFPGXWASODCHM-UHFFFAOYSA-N 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 3
- 238000000926 separation method Methods 0.000 abstract description 3
- 230000002000 scavenging effect Effects 0.000 abstract 1
- 238000007792 addition Methods 0.000 description 9
- 229910052569 sulfide mineral Inorganic materials 0.000 description 8
- 238000007667 floating Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- OMZSGWSJDCOLKM-UHFFFAOYSA-N copper(II) sulfide Chemical compound [S-2].[Cu+2] OMZSGWSJDCOLKM-UHFFFAOYSA-N 0.000 description 4
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- QRJOYPHTNNOAOJ-UHFFFAOYSA-N copper gold Chemical compound [Cu].[Au] QRJOYPHTNNOAOJ-UHFFFAOYSA-N 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 description 3
- 239000011707 mineral Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000010979 pH adjustment Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 239000011028 pyrite Substances 0.000 description 1
- 229910052683 pyrite Inorganic materials 0.000 description 1
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- HRZFUMHJMZEROT-UHFFFAOYSA-L sodium disulfite Chemical compound [Na+].[Na+].[O-]S(=O)S([O-])(=O)=O HRZFUMHJMZEROT-UHFFFAOYSA-L 0.000 description 1
- 235000010262 sodium metabisulphite Nutrition 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000005987 sulfurization reaction Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 229920001285 xanthan gum Polymers 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
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/06—Depressants
-
- 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 invention discloses a dressing method of copper tin sulphide ore. The method comprises the steps of placing raw ore into a ore mill, milling the ore to 200 meshes to achieve a 55% ore material, roughing the ore material at one time to form sulphide ore pulp and residual pulp, adding 700-900g/ton inhibitor during roughing, stirring for 5min, adding 200-240g/ton mixture of isoamyl xanthate and ethionine ester Z200 at a mass ratio of 1:1 as a collector, stirring for 5min, scavenging the residual pulp for a second time to form a raw material for recovering cassiterite by gravity separation, and performing re-milling, copper-sulfur separation and primary floatation on the sulphide ore to form copper concentrate and sulfur concentrate. The method adopts a selective ore milling-floatation method; the sulphide ore is floated under a relatively coarse grain size condition; over-crushing of the cassiterite in case of a relatively fine grain size is avoided; the sulphide ore is recycled effectively; the tin dressing is greatly simplified; the tin dressing efficiency is improved; and the method has good economic benefits.
Description
Technical field
The present invention relates to a kind of beneficiation method of copper and tin sulphide ore, belong to technical field of beneficiation.
Background technology
Sulfide mineral is typically first deviate from by the ore dressing for copper and tin sulphide ore in ore dressing process by the method for flotation,
The method recycling gravity treatment to the Ore having sloughed sulfide mineral reclaims cassiterite, but how control process chats stone grinding particle size
Sulphide ore can be selected and can preferably reclaim stannum again, sulfide mineral adopts during the method removing of flotation it is desirable to Ore grinding particle size
Relatively thin, be so just conducive to the flotation of sulfide mineral, but if Ore grinding particle size is too thin, cassiterite over grind, it is unfavorable for
Cassiterite gravity separation technology reclaims；Select which type of collecting agent collecting sulphide ore so that sulphide ore is preferably enriched with, shallow crust structures mistake
In journey, pH value controls the detached difficult problem realizing copper sulfur that can be more preferable in what value, and the too low collecting agent of pH value can not play catches
Receive the effect of copper mine, the copper in the too high sulphide ore of pH value and sulfur are difficult to sort, for copper and tin sulphide ore stannum under the conditions of coarse fraction
Gravity treatment, copper sulfur separates under the conditions of fine fraction, suitable ph, suitable collecting agent and is always the problem needing in ore dressing to solve.
Through retrieval, find some open source literatures with regard to copper-sulphide ores ore grinding, flotation：
1st, a kind of entitled high-sulfur contains the method for floating of gold-copper ore, Patent No. CN103691569A, and this present invention is public
Open the method for floating that a kind of high-sulfur contains gold-copper ore, existed under alkaline conditions to solve current beneficiation method, copper, gold return
Yield is relatively low；Make using xanthate, black powder that high-sulfur collecting agent containing gold-copper ore collecting power is stronger, selectivity is poor, exacerbates copper sulfur
Detached difficulty, make inhibitor consumes increased problem, and the method makees slurry pH adjustment using Calx and sodium pyrosulfite
Agent and pyrite inhibitor, collector and frother is isopropyl xanthan acid propionitrile ester, black powder is sour, ethyl dithiocarbonic acid propionitrile ester is pressed
The mixture that certain proportioning is prepared, raw ore is carried out ore grinding, roughly select, once purging selection, secondary scan, primary cleaning, recleaning,
Realize the high efficiente callback of copper and gold in auriferous high-sulfur copper ore, the method passes through reasonable combination and the interpolation of medicament, strengthens collecting
The selective absorption to the copper sulfide minerals such as target minreal-Chalkopyrite and gold mineral for the agent, copper recovery, gold recovery have carried
Height, but the method dosing is excessive, reagent cost is too high, be unfavorable for environment.
2nd, a kind of method of entitled floating cupric sulfide ore deposit, Patent No. CN102631993A, this technology is related to a kind of sulfur
Change the method for floating of copper mine it is characterised in that its ore dressing process adopts mercapto-carboxylic ester as collecting agent, the method for the present invention has
There is flotation under and low ph value few to copper sulfide mineral high selectivity and dosing, overcome using conventional flotation sulfur
The collecting agent method choice of change copper mine is poor, dosing is big, be unfavorable for the shortcoming of environment, is that copper sulfide mineral flotation provides
A kind of effective ways, although it is not the method has improvement in terms of collecting agent, also good enough to the effect having Differential flotation of copper and sulphur, to follow-up
Smelting can cause bad impact.
Content of the invention
The problem existing for above-mentioned prior art and deficiency, the present invention provides a kind of beneficiation method of copper and tin sulphide ore, the party
Method passes through selective milling-method for floating so that sulphide ore carries out flotation under the conditions of certain grade, that is, have selected sulphide ore again
Avoid granularity thinner when cassiterite cross pulverize, enable to copper sulfide mineral and effectively recycled, significantly simplify
And improve the efficiency selecting stannum during gravity treatment, there is good economic benefit, solve traditional ore grinding in copper and tin sulfuration ore dressing process
The efficiency causing sludge during the fineness meticulous gravity treatment in cassiterite low more, and during shallow crust structures, copper sulfur can not be detached well
Problem, the present invention is achieved through the following technical solutions.
A kind of beneficiation method of copper and tin sulphide ore, it comprises the following steps that：
（1）The raw ore of copper and tin sulphide ore is put in ore mill, ore grinding to -200 mesh accountings reaches 55% ore materials；
（2）By step（1）Ore materials carry out one roughing, obtain sulphide ore and remaining ore pulp, in rougher process add
Inhibitor sodium silicate 700～900 g ton, stirs five minutes, and mass ratio is 1:1 isoamyl xanthate and second thiamine ester Z200's
As collecting agent, the addition of hybrid collector is 200～240 g ton to mixture, stirs five minutes；
（3）By step（2）The remaining ore pulp obtaining carries out the secondary gravity treatment raw material scanned, obtain stannum, scans mine tailing and returns
One step；
By step（2）The sulphide ore obtaining is put into after ore mill regrinded, and carries out Differential flotation of copper and sulphur, obtains iron concentrate and copper essence
Choosing, copper is selected to obtain copper concentrate through flotation, and flotation tailing returns Differential flotation of copper and sulphur.
Preferably, described step（1）Ore milling concentration is 65%, and the pH value of ore grinding system is 7～8.
Preferably, described step（1）Ore mill is wet rod mill.
Preferably, described step（3）Remaining ore pulp secondary scan in first time scan process add sodium silicate 400
As inhibitor, mass ratio is 1 to g ton:The mixture of 1 isoamyl xanthate and second thiamine ester Z200, as collecting agent, mixes
The addition of collecting agent is 100～140 g ton；Sodium silicate 180～220 g ton is added as suppression in the ore pulp scanned for the second time
Preparation, mass ratio is 1:The mixture of 1 isoamyl xanthate and second thiamine ester Z200 is as collecting agent, the addition of hybrid collector
Measure as 60～80 g ton.
Preferably, described step（3）Sulphide ore when being regrinded, add Calx 800～1200 g ton to make in grinding machine
For the regulator of inhibitor during Differential flotation of copper and sulphur and pH value, add Calx that slurry pH is adjusted to 10 in flotation, and subsequently float
Holding slurry pH is chosen to be 10.
The invention has the beneficial effects as follows：Copper and tin sulphide ore is carried out put in flotation cell after ore grinding, be sufficiently stirred for, by floating
By valuable mineral copper mine, priority enrichment under the conditions of coarse fraction is so that valuable mineral is reasonably recycled, same with this for choosing
When protection cassiterite cross pulverize in the case of, there is good economic benefit, solve copper sulphur content in copper and tin sulphide ore ore dressing process
From difficulty, cassiterite sorts the low problem of efficiency.
Brief description
Fig. 1 is beneficiation flowsheet figure of the present invention.
Specific embodiment
With reference to specific embodiment, the invention will be further described.
Embodiment 1
Described in the present embodiment, the beneficiation method of copper and tin sulphide ore, comprises the following steps that：
（1）By 500g copper and tin sulphide ore（Containing Cu0.4wt%, Sn0.5wt%, S8.2wt%）Put in ore mill, ore grinding to -200 mesh
Reach 55% ore materials, ore milling concentration is 65%, the acid-base value control ph of ore grinding system is 7, and ore mill is wet type rod milling
Machine；
（2）By step（1）Ore materials carry out one roughing, obtain sulphide ore ore pulp and remaining ore pulp, in rougher process
Add inhibitor sodium silicate 700 g ton, mixing time is five minutes, mass ratio is 1:1 isoamyl xanthate and second thiamine ester
Z200, as collecting agent, adds isoamyl xanthate 120 g ton and second thiamine ester Z200 120 g ton, and mixing time is five points
Clock；
（3）By step（2）Through the remaining ore pulp of one roughing carry out secondary scan, the mine tailing obtaining becomes next step gravity treatment
The raw material of the cassiterite reclaiming, adds sodium silicate 400 g ton as inhibitor, mass ratio is 1 during wherein scanning for the first time:1
Isoamyl xanthate and second thiamine ester Z200 as collecting agent, two kinds of collecting agent additions are all 60 g ton, scan mine tailing return
Roughly select；Add sodium silicate 200 g ton as inhibitor during scanning for the second time, mass ratio is 1:1 isoamyl xanthate and second
As collecting agent, two kinds of collecting agent additions are all 40 g ton to thiamine ester Z200, scan mine tailing return and scan for the first time；
By step（2）Carry out coarse concentrate regrinding through the sulphide ore ore pulp of one roughing, in grinding machine, when regrinding, add Calx 800
G ton, as the regulator of inhibitor pyritous during Differential flotation of copper and sulphur and pH value, carries out Differential flotation of copper and sulphur after regrinding, obtains iron concentrate
Selected with copper, copper is selected to obtain copper concentrate through flotation, is adding Calx that slurry pH is adjusted to 10, floatation process is protected in flotation
Holding slurry pH is 10, and flotation tailing returns Differential flotation of copper and sulphur.
The copper concentrate copper grade that the present embodiment obtains（Cu）14.88wt%, the response rate of copper reaches 74.31%.
Embodiment 2
Described in the present embodiment, the beneficiation method of copper and tin sulphide ore, comprises the following steps that：
（1）By 500g copper and tin sulphide ore（Containing Cu0.47wt%, Sn0.5wt%, S8.2wt%）Put in ore mill, ore grinding to -200
Mesh reaches 55% ore materials, and ore milling concentration is 65%, and the acid-base value control ph of ore grinding system is 7.5, and ore mill is wet type
Rod mill；
（2）By step（1）Ore materials carry out one roughing, obtain sulphide ore ore pulp and remaining ore pulp, in rougher process
Add inhibitor sodium silicate 800 g ton, mixing time is five minutes, mass ratio is 1:1 isoamyl xanthate and second thiamine ester
Z200, as collecting agent, adds isoamyl xanthate 100 g ton and second thiamine ester Z200 100 g ton, and mixing time is five points
Clock；
（3）By step（2）Through the remaining ore pulp of one roughing carry out secondary scan, the mine tailing obtaining becomes next step
The raw material of the cassiterite that gravity treatment is reclaimed, adds sodium silicate 400 g ton as inhibitor, mass ratio during wherein scanning for the first time
For 1:, as collecting agent, two kinds of collecting agent additions are all 70 g ton, scan tail for 1 isoamyl xanthate and second thiamine ester Z200
Ore deposit returns and roughly selects；Add sodium silicate 180 g ton as inhibitor during scanning for the second time, mass ratio is 1:1 isopentyl is yellow
, as collecting agent, two kinds of collecting agent additions are all 35 g ton for medicine and second thiamine ester Z200, scan mine tailing return and sweep for the first time
Choosing；
By step（2）Carry out coarse concentrate regrinding through the sulphide ore ore pulp of one roughing, in grinding machine, when regrinding, add Calx
1200 g ton, as the regulator of inhibitor pyritous during Differential flotation of copper and sulphur and pH value, carry out Differential flotation of copper and sulphur after regrinding, obtain sulfur
Concentrate and copper are selected, and copper is selected to obtain copper concentrate through flotation, are adding Calx that slurry pH is adjusted to 10, flotation in flotation
It is 10 that journey keeps slurry pH, and flotation tailing returns Differential flotation of copper and sulphur.
The copper concentrate copper grade that the present embodiment obtains（Cu）17.88wt%, the response rate of copper reaches 73.60%.
Embodiment 3
Described in the present embodiment, the beneficiation method of copper and tin sulphide ore, comprises the following steps that：
（1）By 500g copper and tin sulphide ore（Containing Cu0.4wt%, Sn0.5wt%, S8.2wt%）Put in ore mill, ore grinding to -200 mesh
Reach 55% ore materials, ore milling concentration is 65%, the acid-base value control ph of ore grinding system is 8, and ore mill is wet type rod milling
Machine；
（2）By step（1）Ore materials carry out one roughing, obtain sulphide ore ore pulp and remaining ore pulp, in rougher process
Add inhibitor sodium silicate 900 g ton, mixing time is five minutes, mass ratio is 1:1 isoamyl xanthate and second thiamine ester
Z200, as collecting agent, adds isoamyl xanthate 110 g ton and second thiamine ester Z200 110 g ton, and mixing time is five points
Clock；
（3）By step（2）Through the remaining ore pulp of one roughing carry out secondary scan, the mine tailing obtaining becomes next step
The raw material of the cassiterite that gravity treatment is reclaimed, adds sodium silicate 400 g ton as inhibitor, mass ratio during wherein scanning for the first time
1:, as collecting agent, two kinds of collecting agent additions are all 50 g ton, scan mine tailing for 1 isoamyl xanthate and second thiamine ester Z200
Return is roughly selected；Add sodium silicate 220 g ton as inhibitor during scanning for the second time, mass ratio is 1:1 isoamyl xanthate
With second thiamine ester Z200 as collecting agent, two kinds of collecting agent additions are all 30 g ton, scan mine tailing return and scan for the first time；
By step（2）Carry out coarse concentrate regrinding through the sulphide ore ore pulp of one roughing, in grinding machine, when regrinding, add Calx 900
G ton, as the regulator of inhibitor pyritous during Differential flotation of copper and sulphur and pH value, carries out Differential flotation of copper and sulphur after regrinding, obtains iron concentrate
Selected with copper, copper is selected to obtain copper concentrate through flotation, is adding Calx that slurry pH is adjusted to 10, floatation process is protected in flotation
Holding slurry pH is 10, and flotation tailing returns Differential flotation of copper and sulphur.
The copper concentrate copper grade that the present embodiment obtains（Cu）16.88wt%, the response rate of copper reaches 75.24%.
Above in association with accompanying drawing, the specific embodiment of the present invention is explained in detail, but the present invention be not limited to above-mentioned
Embodiment, in the ken that those of ordinary skill in the art possess, can also be before without departing from present inventive concept
Put that various changes can be made, belong to protection scope of the present invention.
Claims (5)
1. a kind of beneficiation method of copper and tin sulphide ore is it is characterised in that comprise the following steps that：
（1）The raw ore of copper and tin sulphide ore is put in ore mill, ore grinding to -200 mesh accountings reaches 55% ore materials；
（2）By step（1）Ore materials carry out one roughing, obtain sulphide ore and remaining ore pulp, in rougher process add
Inhibitor sodium silicate 700～900 g ton, stirs five minutes, and mass ratio is 1:1 isoamyl xanthate and second thiamine ester Z200's
As collecting agent, the addition of hybrid collector is 200～240 g ton to mixture, stirs five minutes；
（3）By step（2）The remaining ore pulp obtaining carries out the secondary gravity treatment raw material scanned, obtain stannum, scans mine tailing and returns
One step；
By step（2）The sulphide ore obtaining is put into after ore mill regrinded, and carries out Differential flotation of copper and sulphur, obtains iron concentrate and copper essence
Choosing, copper is selected to obtain copper concentrate through flotation, and flotation tailing returns Differential flotation of copper and sulphur.
2. copper and tin sulphide ore beneficiation method according to claim 1 is it is characterised in that described step（1）Ore milling concentration is
65%, the pH value of ore grinding system is 7～8.
3. copper and tin sulphide ore beneficiation method according to claim 1 is it is characterised in that described step（1）Ore mill is wet
Formula rod mill.
4. copper and tin sulphide ore beneficiation method according to claim 1 is it is characterised in that described step（3）Remaining ore pulp
Secondary scan in first time scan process and add sodium silicate 400 g ton as inhibitor, mass ratio is 1:1 isopentyl
As collecting agent, the addition of hybrid collector is 100～140 g ton to the mixture of xanthate and second thiamine ester Z200；Second
Add sodium silicate 180～220 g ton as inhibitor in the ore pulp scanned, mass ratio is 1:1 isoamyl xanthate and second thiamine
As collecting agent, the addition of hybrid collector is 60～80 g ton to the mixture of ester Z200.
5. copper and tin sulphide ore beneficiation method according to claim 1 is it is characterised in that described step（3）Sulphide ore enter
When row is regrinded, ore mill adds Calx 800～1200 g ton, in floatation process, add Calx to keep slurry pH simultaneously
For 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812301.3A CN106391297B (en) | 2016-09-09 | 2016-09-09 | A kind of beneficiation method of copper and tin sulphide ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610812301.3A CN106391297B (en) | 2016-09-09 | 2016-09-09 | A kind of beneficiation method of copper and tin sulphide ore |
Publications (2)
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