CN106179722A - Mineral processing technology for gold ore containing high-arsenic and high-antimony easily-argillized minerals - Google Patents
Mineral processing technology for gold ore containing high-arsenic and high-antimony easily-argillized minerals Download PDFInfo
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- CN106179722A CN106179722A CN201610870719.XA CN201610870719A CN106179722A CN 106179722 A CN106179722 A CN 106179722A CN 201610870719 A CN201610870719 A CN 201610870719A CN 106179722 A CN106179722 A CN 106179722A
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- gold
- ore
- chats
- minerals
- antimony
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 title claims abstract description 100
- 239000010931 gold Substances 0.000 title claims abstract description 97
- 229910052737 gold Inorganic materials 0.000 title claims abstract description 96
- 229910052500 inorganic mineral Inorganic materials 0.000 title claims abstract description 47
- 239000011707 mineral Substances 0.000 title claims abstract description 47
- 229910052787 antimony Inorganic materials 0.000 title claims abstract description 19
- 229910052785 arsenic Inorganic materials 0.000 title claims abstract description 15
- 238000005516 engineering process Methods 0.000 title abstract description 3
- 238000000034 method Methods 0.000 claims abstract description 38
- 239000012141 concentrate Substances 0.000 claims abstract description 30
- WATWJIUSRGPENY-UHFFFAOYSA-N antimony atom Chemical compound [Sb] WATWJIUSRGPENY-UHFFFAOYSA-N 0.000 claims abstract description 18
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 claims abstract description 14
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims abstract description 8
- 229910000365 copper sulfate Inorganic materials 0.000 claims abstract description 8
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000011734 sodium Substances 0.000 claims abstract description 8
- 229910052708 sodium Inorganic materials 0.000 claims abstract description 8
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims abstract description 6
- 235000019982 sodium hexametaphosphate Nutrition 0.000 claims abstract description 6
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 claims abstract description 6
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 4
- 229910000029 sodium carbonate Inorganic materials 0.000 claims abstract description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims description 21
- 239000012991 xanthate Substances 0.000 claims description 21
- 239000000843 powder Substances 0.000 claims description 14
- 239000002245 particle Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 239000008187 granular material Substances 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 24
- 238000011084 recovery Methods 0.000 abstract description 15
- 238000005188 flotation Methods 0.000 abstract description 14
- 239000003795 chemical substances by application Substances 0.000 abstract description 8
- 239000003112 inhibitor Substances 0.000 abstract description 6
- 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 abstract description 3
- 239000003814 drug Substances 0.000 abstract description 3
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 abstract description 2
- 239000002270 dispersing agent Substances 0.000 abstract description 2
- 239000004088 foaming agent Substances 0.000 abstract description 2
- 238000000926 separation method Methods 0.000 abstract 2
- 230000003213 activating effect Effects 0.000 abstract 1
- 229940079593 drug Drugs 0.000 abstract 1
- QWENMOXLTHDKDL-UHFFFAOYSA-N pentoxymethanedithioic acid Chemical compound CCCCCOC(S)=S QWENMOXLTHDKDL-UHFFFAOYSA-N 0.000 abstract 1
- 230000002000 scavenging effect Effects 0.000 abstract 1
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 15
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 229910052683 pyrite Inorganic materials 0.000 description 11
- 239000011028 pyrite Substances 0.000 description 11
- MJLGNAGLHAQFHV-UHFFFAOYSA-N arsenopyrite Chemical compound [S-2].[Fe+3].[As-] MJLGNAGLHAQFHV-UHFFFAOYSA-N 0.000 description 10
- 238000002474 experimental method Methods 0.000 description 10
- 239000010453 quartz Substances 0.000 description 10
- 229910052959 stibnite Inorganic materials 0.000 description 7
- IHBMMJGTJFPEQY-UHFFFAOYSA-N sulfanylidene(sulfanylidenestibanylsulfanyl)stibane Chemical compound S=[Sb]S[Sb]=S IHBMMJGTJFPEQY-UHFFFAOYSA-N 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 229910052569 sulfide mineral Inorganic materials 0.000 description 5
- 230000001788 irregular Effects 0.000 description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 4
- 229910052622 kaolinite Inorganic materials 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- -1 Muscovitum Inorganic materials 0.000 description 3
- 230000002411 adverse Effects 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 239000000178 monomer Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 229910021532 Calcite Inorganic materials 0.000 description 2
- 229910052626 biotite Inorganic materials 0.000 description 2
- 239000002734 clay mineral Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000002386 leaching Methods 0.000 description 2
- 229910052960 marcasite Inorganic materials 0.000 description 2
- JMANVNJQNLATNU-UHFFFAOYSA-N oxalonitrile Chemical compound N#CC#N JMANVNJQNLATNU-UHFFFAOYSA-N 0.000 description 2
- 229910052604 silicate mineral Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 2
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- UEZVMMHDMIWARA-UHFFFAOYSA-N Metaphosphoric acid Chemical compound OP(=O)=O UEZVMMHDMIWARA-UHFFFAOYSA-N 0.000 description 1
- KKCBUQHMOMHUOY-UHFFFAOYSA-N Na2O Inorganic materials [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- KZNMRPQBBZBTSW-UHFFFAOYSA-N [Au]=O Chemical compound [Au]=O KZNMRPQBBZBTSW-UHFFFAOYSA-N 0.000 description 1
- XEIPQVVAVOUIOP-UHFFFAOYSA-N [Au]=S Chemical compound [Au]=S XEIPQVVAVOUIOP-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000012190 activator Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 229910052681 coesite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 229910052593 corundum Inorganic materials 0.000 description 1
- 229910052906 cristobalite Inorganic materials 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 239000010459 dolomite Substances 0.000 description 1
- 229910000514 dolomite Inorganic materials 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 235000021321 essential mineral Nutrition 0.000 description 1
- 229910001922 gold oxide Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 238000007885 magnetic separation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 229910052592 oxide mineral Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910052682 stishovite Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052905 tridymite Inorganic materials 0.000 description 1
- 229910001845 yogo sapphire Inorganic materials 0.000 description 1
Classifications
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/018—Mixtures of inorganic and organic compounds
-
- 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
- B03D2201/005—Dispersants
-
- 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
- B03D2201/04—Frothers
-
- 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
- B03D2203/025—Precious metal ores
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- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
A mineral processing technology of gold ore containing high arsenic and antimony and easily argillized minerals adopts sodium carbonate as a flotation pulp regulator, water glass and sodium hexametaphosphate as an inhibitor and a dispersant containing argillized minerals, copper sulfate as an activating agent of gold-containing minerals, amyl xanthate and butyl ammonium black drug as collecting agents of gold-containing sulfurized minerals, sodium hydroxamate as a collecting agent of gold-containing oxidized minerals, and No. 2 oil as a foaming agent; carrying out primary grinding on the raw ore; rapidly sorting the ground minerals through first-stage roughing and first-stage fine selection to obtain gold concentrate 1, and scavenging the roughed tailings for three times to obtain middlings; desliming the obtained middlings, and performing secondary regrinding on the deslimed ore pulp; the ore pulp obtained after regrinding is subjected to a reinforced collecting process of secondary roughing and primary concentration to obtain gold concentrate 2, the gold concentrate obtained by the method has high recovery rate, argillized minerals have less influence factors on gold separation, and the gold grade of the mixed gold concentrate can be 52.84g/t through the separation of the process, and the gold recovery rate is 71.01%.
Description
Technical field
The invention belongs to technical field of beneficiation, particularly to the ore dressing of a kind of gold mine containing high arsenic, antimony and easy argillization mineral
Technique.
Background technology
Ore is formed to the ore dressing the most comparative maturity of relatively simple Gold Ore, but right when Gold Ore contains
Gold reclaims harmful element arsenic and antimony, and when its content is higher, is unfavorable for the recovery of gold.And gangue mineral is limonite, white
During the easily argillization mineral such as Muscovitum, biotite, kaolinite, golden sorting is affected bigger.
Identify under the microscope after this type of Gold Ore is milled into mating plate, thin slice, visible rusty gold, metallic ore in Ore
Thing mainly has pyrite, mispickel, limonite and stibnite, and next has minimal amount of magnetic iron ore, marcasite, antimony, antimony bloom
Deng.Gangue mineral mainly quartz, is secondly white mica, dolomite, biotite, calcite, kaolinite.
In Ore, visible gold is all with rusty gold form output.The rusty gold seen under mirror in pelletized form, irregular be distributed in
Quartz, pyrite, the crack of mispickel or be wrapped in wherein, embedding stibnite, Chalkopyrite, limonite, the calcite etc. of being distributed in having splits
Gap, intergranular or be wrapped in wherein.Rusty gold grain graininess excursion is very big, generally 0.005-0.050mm, also has part certainly
So gold grain granularity is less than 0.001mm, the most visible in the sulfide minerals such as quartz and mispickel.
Pyrite is one of metalliferous mineral main in Ore, is also one of golden main carriers mineral.Yellow ferrum in Ore
Ore deposit is mainly in subhedral or its shape grains is embedding is distributed in gangue mineral, and disseminated grain size is based on middle particulate, and granularity is relatively concentrated point
Cloth is at 0.020-0.147mm, and pyrite and mispickel, marcasite symbiosis are more close, often with aggregated form output, part
Output is handed over by limonite in pyrite edge.
Stibnite is the essential mineral of antimony in Ore, is also one of gold-carrying minerals.Stibnite mainly in its shape grains, no
Shape is embedding is distributed in gangue mineral for rule, and disseminated grain size is based on middle coarse grain, and particle size distribution is 0.043-0.833mm.Also have
Part stibnite is that microfine is contaminated in gangue mineral, is difficult to monomer dissociation during ore grinding.Major part stibnite and pyrite, poison
The sulfide mineral symbiosis such as sand are the closest, beneficially separate between antimony with arsenic, sulfur, the parcel of visible mispickel in small part stibnite
Body.
Limonite is burning mineral main in Ore, is also one of gold-carrying minerals.In Ore limonite mainly in
Mostly illusion structure output, be the product that pyrite or mispickel are formed after handing over completely, and part limonite is irregular or thin
Embedding gangue mineral intergranular or the crack of being distributed in of veiny, sometimes limonite fraction explanation pyrite or mispickel output.Limonite embedding cloth grain
Degree is based on particulate, and particle size distribution is 0.010-0.050mm.
Raw ore analysis result understands, it is seen that gold part is main with the embedding cloth of rusty gold form or be wrapped in pyrite, mispickel, brightness
In the sulfide minerals such as antimony ore, this part micro-inclusion rusty gold can be enriched with carrier mineral.And small part is with microfine
Or secondary microinclusion form composes and is stored in the micro-inclusion rusty gold rapid wear in the gangue minerals such as limonite, tripuhyite and quartz
Losing, the more difficult recovery of gold, is the principal element affecting gold recovery.
Summary of the invention
In order to overcome the shortcoming of above-mentioned prior art, it is an object of the invention to provide a kind of containing high arsenic, antimony and easy argillization
The ore-dressing technique of the gold mine of mineral, for gold mineral mainly with the form of rusty gold in pelletized form, irregular be distributed in quartz,
Pyrite, the crack of mispickel, intergranular or be wrapped in wherein, and part gold mineral is composed with microfine or secondary microinclusion form and is deposited
In the gangue minerals such as limonite, tripuhyite and quartz, therefore the recovery of Gold in Ores it is critical only that and effectively reclaims in Ore
Sulfide mineral, thus selective flotation method is the most suitable；For being wrapped in the gangue minerals such as limonite, tripuhyite and quartz
Gold only use fine grinding to carry out flotation after making monomer whose dissociate or Cyanide Leaching reclaims, but due in Ore containing easy argillization
The clay mineral such as layer silicate mineral and kaolinite such as white mica, the flotation or leach for gold all adversely affects, this
Invention overcomes this adverse effect, improves the elimination factor of gold.
To achieve these goals, the technical solution used in the present invention is:
The ore-dressing technique of a kind of gold mine containing high arsenic, antimony and easy argillization mineral, comprises the steps:
Step 1, carries out ore grinding by raw ore: by crushing raw ore, and one time ore grinding accounts for 75% to ore grain size less than 0.074mm；
Step 2, carries out the breeze after ore grinding one roughing and scans primary cleaning three times, obtains in Gold Concentrate under Normal Pressure 1 and three
Ore deposit；
Step 3, after being merged by three chats of gained, desliming is regrinded；
Step 4, the breeze obtained after regrinding carries out secondary and roughly selects primary cleaning, obtains Gold Concentrate under Normal Pressure.
In terms of raw ore, in described step 1, add sodium carbonate 1000g/t, waterglass 500g/t and hexa metaphosphoric acid when ore grinding
Sodium 50g/t, is milled to the particle diameter of more than 75% granule less than 0.074mm.
In terms of raw ore, in described step 2, when roughly selecting, it is sequentially added into copper sulfate 150g/t, penta xanthate 90g/t, fourth black powder
30g/t, sodium alkyl hydroxamate 30g/t and 2# oil 60g/t；Add penta xanthate 20g/t and fourth black powder 10g/t time selected, selected obtain
Gold Concentrate under Normal Pressure 1 and chats 3；Copper sulfate 40g/t, penta xanthate 40g/t, fourth black powder 15g/t and 2# oil 10g/ is added during once purging selection
T, obtains chats 4；Add penta xanthate 20g/t and fourth black powder 10g/t when secondary is scanned, obtain chats 5；Penta xanthate is added three times when scanning
10g/t, obtains chats 1 and mine tailing 1, and wherein chats 1 loopback carries out secondary and scans.
In described step 3, the mixing of chats 3, chats 4 and chats 5 is carried out desliming, regrinds afterwards, regrind to 95%
The particle diameter of above granule is less than 0.038mm.
In terms of raw ore, in described step 4, during one roughing, add copper sulfate 40g/t, penta xanthate 40g/t, fourth black powder 10g/
T and sodium alkyl hydroxamate 15g/t, adds penta xanthate 20g/t and fourth black powder 10g/t, adds penta xanthate time selected when secondary is roughly selected
20g/t and fourth black powder 10g/t, obtains chats 2 and Gold Concentrate under Normal Pressure 2.
The loopback of described chats 2 carries out one roughing.
Compared with prior art, the present invention uses sodium carbonate as flotation pulp regulator, waterglass and sodium hexameta phosphate
As the inhibitor containing argillization class mineral and dispersant, copper sulfate is as the activator of gold sulphide ores, amyl group xanthate, butyl ammonium aerofloat
As the collecting agent of gold-containing sulfurating mineral, sodium alkyl hydroxamate is as the collecting agent containing gold oxide mineral, and No. 2 oil are as foaming agent；Institute
Obtaining the Gold Concentrate under Normal Pressure response rate high, the influence factor that argillization Mineral pairs gold sorts reduces, and is sorted by this flow process, can obtain mixing gold
Concentrate gold grade 52.84g/t, gold recovery is 71.01%.The method, by the reasonable process to flotation chats, greatly reduces
The influence factor that gold is sorted by sludge, makes the response rate more existing floatation process of gold have increased significantly.
Accompanying drawing explanation
Fig. 1 is raw ore explorative experiment flow chart of the present invention.
Fig. 2 is raw ore gangue inhibitor kind experiment process figure of the present invention.
Fig. 3 is raw ore closed-circuit test (1) flow chart of the present invention.
Fig. 4 is raw ore closed-circuit test (2) flow chart of the present invention.
Fig. 5 is raw ore closed-circuit test (3) flow chart of the present invention.
Detailed description of the invention
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings with embodiment.
Take chemistry sample by after the mixing of raw ore sample broke point to be analyzed, raw ore gold grade 4.38g/t, the chemistry one-tenth of Ore
Divide as shown in table 1.
The chemical composition analysis result of table 1 Ore
| Composition | Au/g/t | Ag/g/t | S | As | Sb | Cu | Pb | Zn |
| Content/% | 4.38 | 0.20 | 0.97 | 0.42 | 0.49 | 0.0042 | 0.0070 | 0.014 |
| Composition | Fe2O3 | Al2O3 | SiO2 | K2O | Na2O | CaO | MgO | Mn |
| Content/% | 4.58 | 15.25 | 57.21 | 2.71 | 0.36 | 6.63 | 2.13 | 0.056 |
| Composition | Ti | P | Co | Cr | V | Rb | Sr | Ba |
| Content/% | 0.32 | 0.050 | 0.0013 | 0.0054 | 0.0066 | 0.016 | 0.038 | 0.030 |
As it can be seen from table 1 the main element that reclaims is gold in Ore, the harmful element reclaiming gold has arsenic and antimony, content
Higher.Calcium in mineral, magnesium, aluminum content higher, illustrate that easy argillization mineral content is higher.
Result of study and chemical analysis results according to Ore material composition understand this mining area gold mineral mainly with rusty gold
Form in pelletized form, irregular be distributed in quartz, pyrite, the crack of mispickel, intergranular or be wrapped in wherein, and part gold mine
Thing is composed with microfine or secondary microinclusion form and is stored in the gangue minerals such as limonite, tripuhyite and quartz, therefore in Ore
The recovery of gold it is critical only that reclaims the sulfide mineral in Ore effectively, thus selective flotation method is the most suitable.For parcel
Gold in the gangue minerals such as limonite, tripuhyite and quartz only uses fine grinding to carry out flotation or cyanogen after making monomer whose dissociate
Change to leach and reclaim, but owing to Ore containing the clay minerals such as layer silicate mineral and kaolinite such as the white mica of easy argillization,
Flotation or leaching for gold all adversely affect.
Raw ore flotation exploratory experiment is substantially carried out collecting agent kind Selection experiment, owing to the collecting ability of penta xanthate is relatively strong,
Therefore collecting agent selects penta xanthate to explore.In addition the collecting agent stronger to oxide ore collecting ability and the associating of penta xanthate are selected
Effect is so that the gold reclaimed in the oxide mineral such as limonite.Medicament used in experiment process, consumption all for raw ore, unit
For g/t.Result of the test is shown in Table 2, and experiment process is shown in Fig. 1.
From the point of view of table 2 exploratory experiment result, when selecting penta xanthate 90g/t, gold recovery is up to 81.45%, and gold is coarse-fine
Ore deposit grade is 20.17g/t.
Table 2 raw ore exploratory experiment result
In order to make sludge in ore pulp be suppressed, carry out gangue inhibitor kind test, have selected CMC and six phosphorus partially here
Acid two kinds of medicaments of sodium are tested.Experiment process is shown in that Fig. 2, result of the test are shown in Table 3.
From table 3 result of the test it can be seen that use CMC and sodium hexameta phosphate to suppress for sludge, gold rough concentrate product
Position is improved, and the response rate of gold is declined slightly, and when inhibitor is sodium hexameta phosphate, in mine tailing, gold loss rate is minimum, therefore selects
Sodium hexameta phosphate is the most suitable.
Table 3 raw ore gangue inhibitor kind is tested
Using raw ore primary grinding one thick three to sweep two essence flow processs and carry out closed-circuit test, closed-circuit test flow process (1) is shown in Fig. 3, examination
Test and the results are shown in Table 4.
Table 4 raw ore flotation closed circuit flow process (1) result of the test
| Name of product | Productivity/% | Gold grade/g/t | Gold recovery/% |
| Gold Concentrate under Normal Pressure | 4.75 | 59.71 | 65.22 |
| Chats | 18.99 | 4.55 | 19.89 |
| Mine tailing | 76.26 | 0.85 | 14.89 |
| Raw ore | 100.00 | 4.35 | 100.00 |
This flow process i.e. chats is used not grind product (chats) productivity of gained after choosing more as can be seen from the test results relatively big,
Gold grade is relatively low.
Use raw ore primary grinding one thick three to sweep the thick essence flow process of an essence middling ore regrinding two and carry out closed-circuit test, and right
Flotation tailing 1 carries out one section of low intensity magnetic separation, and closed-circuit test flow process (2) is shown in that Fig. 4, result of the test are shown in Table 5.
Table 5 raw ore flotation closed circuit flow process (2) result of the test
| Name of product | Productivity/% | Gold grade/g/t | Gold recovery/% |
| Gold Concentrate under Normal Pressure 1 | 4.72 | 60.37 | 64.77 |
| Gold Concentrate under Normal Pressure 2 | 0.73 | 29.05 | 4.84 |
| Mud | 2.34 | 4.75 | 2.53 |
| Mine tailing 1 | 80.93 | 1.03 | 18.89 |
| Mine tailing 2 | 11.28 | 3.50 | 8.98 |
| Raw ore | 100.00 | 4.40 | 100.00 |
Use raw ore primary grinding one thick three to sweep the thick essence flow process of an essence middling ore regrinding two and carry out closed-circuit test, closed circuit
Experiment process is shown in that Fig. 5, result of the test are shown in Table 6.
Table 6 raw ore flotation closed circuit flow process (3) result of the test
| Name of product | Productivity/% | Gold grade/g/t | Gold recovery/% |
| Gold Concentrate under Normal Pressure 1 | 4.76 | 60.33 | 65.26 |
| Gold Concentrate under Normal Pressure 2 | 1.15 | 21.92 | 5.75 |
| Mud | 3.39 | 4.71 | 3.63 |
| Mine tailing 1 | 80.68 | 0.93 | 17.08 |
| Mine tailing 2 | 10.02 | 3.64 | 8.28 |
| Raw ore | 100.00 | 4.40 | 100.00 |
Table 4, table 5 and 6 three kinds of closed-circuit test result of flow of table are understood:
1. closed-circuit test flow process (1) gained Gold Concentrate under Normal Pressure grade 59.71g/t, gold recovery is 65.22%.
2. closed-circuit test flow process (2) gained Gold Concentrate under Normal Pressure 1 grade 60.37g/t, Gold Concentrate under Normal Pressure 2 grade 29.05g/t, Gold Concentrate under Normal Pressure 1+
The gold recovery of 2 is 69.61%, mixes Gold Concentrate under Normal Pressure grade 56.16g/t.
3. closed-circuit test flow process (3) gained Gold Concentrate under Normal Pressure 1 grade 60.33g/t, Gold Concentrate under Normal Pressure 2 grade 21.92g/t Gold Concentrate under Normal Pressure 1+2
Gold recovery be 71.01%, mix Gold Concentrate under Normal Pressure gold grade 52.84g/t.
Can be seen that closed-circuit test flow process (3) the gained Gold Concentrate under Normal Pressure response rate is the highest, result of the test is ideal, consequently recommended
Closed-circuit test flow process (3).
Claims (6)
1. the ore-dressing technique containing the gold mine of high arsenic, antimony and easy argillization mineral, it is characterised in that comprise the steps:
Step 1, carries out ore grinding by raw ore: by crushing raw ore, and one time ore grinding accounts for 75% to ore grain size less than 0.074mm；
Step 2, carries out the breeze after ore grinding one roughing and scans primary cleaning three times, obtains Gold Concentrate under Normal Pressure 1 and three chats；
Step 3, after being merged by three chats of gained, desliming is regrinded；
Step 4, the breeze obtained after regrinding carries out secondary and roughly selects primary cleaning, obtains Gold Concentrate under Normal Pressure.
The ore-dressing technique of the gold mine containing high arsenic, antimony and easy argillization mineral the most according to claim 1, it is characterised in that described
In step 1, add sodium carbonate 1000g/t, waterglass 500g/t and sodium hexameta phosphate 50g/t when ore grinding, be milled to more than 75%
The particle diameter of granule is less than 0.074mm.
The ore-dressing technique of the gold mine containing high arsenic, antimony and easy argillization mineral the most according to claim 1, it is characterised in that described
In step 2, when roughly selecting, be sequentially added into copper sulfate 150g/t, penta xanthate 90g/t, fourth black powder 30g/t, sodium alkyl hydroxamate 30g/t and
2# oil 60g/t；Add penta xanthate 20g/t and fourth black powder 10g/t time selected, selected obtain Gold Concentrate under Normal Pressure 1 and chats 3；Once purging selection
Time add copper sulfate 40g/t, penta xanthate 40g/t, fourth black powder 15g/t and 2# oil 10g/t, obtain chats 4；Add when secondary is scanned
Penta xanthate 20g/t and fourth black powder 10g/t, obtains chats 5；Add penta xanthate 10g/t when scanning three times, obtain chats 1 and mine tailing 1,
Wherein chats 1 loopback carries out secondary and scans.
The ore-dressing technique of the gold mine containing high arsenic, antimony and easy argillization mineral the most according to claim 3, it is characterised in that described
In step 3, the mixing of chats 3, chats 4 and chats 5 is carried out desliming, regrinds afterwards, regrind to the grain of more than 95% granule
Footpath is less than 0.038mm.
The ore-dressing technique of the gold mine containing high arsenic, antimony and easy argillization mineral the most according to claim 3, it is characterised in that described
In step 4, during one roughing, add copper sulfate 40g/t, penta xanthate 40g/t, fourth black powder 10g/t and sodium alkyl hydroxamate 15g/t, two
Secondary add penta xanthate 20g/t and fourth black powder 10g/t when roughly selecting, add penta xanthate 20g/t and fourth black powder 10g/t time selected, obtain
Chats 2 and Gold Concentrate under Normal Pressure 2.
The ore-dressing technique of the gold mine containing high arsenic, antimony and easy argillization mineral the most according to claim 5, it is characterised in that described
Chats 2 loopback carries out one roughing.
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