CN104689913B - A kind of method that polycrystalline series troilite mixing is reclaimed - Google Patents
A kind of method that polycrystalline series troilite mixing is reclaimed Download PDFInfo
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- CN104689913B CN104689913B CN201510088888.3A CN201510088888A CN104689913B CN 104689913 B CN104689913 B CN 104689913B CN 201510088888 A CN201510088888 A CN 201510088888A CN 104689913 B CN104689913 B CN 104689913B
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- MBMLMWLHJBBADN-UHFFFAOYSA-N Ferrous sulfide Chemical compound [Fe]=S MBMLMWLHJBBADN-UHFFFAOYSA-N 0.000 title claims abstract description 89
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000002156 mixing Methods 0.000 title claims abstract description 13
- 239000012141 concentrate Substances 0.000 claims abstract description 72
- 238000005188 flotation Methods 0.000 claims abstract description 59
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 40
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical group [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000011593 sulfur Substances 0.000 claims abstract description 24
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 24
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 22
- 239000011707 mineral Substances 0.000 claims abstract description 22
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052683 pyrite Inorganic materials 0.000 claims abstract description 19
- 239000011028 pyrite Substances 0.000 claims abstract description 19
- 238000011084 recovery Methods 0.000 claims abstract description 17
- 239000012190 activator Substances 0.000 claims abstract description 15
- 229910052976 metal sulfide Inorganic materials 0.000 claims abstract description 12
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 239000005864 Sulphur Substances 0.000 claims abstract description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 24
- 238000003756 stirring Methods 0.000 claims description 20
- 238000004140 cleaning Methods 0.000 claims description 11
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 10
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 claims description 6
- 238000007885 magnetic separation Methods 0.000 claims 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 claims description 5
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 claims description 5
- 239000013078 crystal Substances 0.000 claims description 5
- WNAHIZMDSQCWRP-UHFFFAOYSA-N dodecane-1-thiol Chemical compound CCCCCCCCCCCCS WNAHIZMDSQCWRP-UHFFFAOYSA-N 0.000 claims description 5
- 239000002516 radical scavenger Substances 0.000 claims description 5
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 5
- 235000011152 sodium sulphate Nutrition 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 239000012535 impurity Substances 0.000 claims description 3
- 239000002002 slurry Substances 0.000 claims description 3
- 229910021645 metal ion Inorganic materials 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 5
- 238000003912 environmental pollution Methods 0.000 abstract description 4
- 230000004913 activation Effects 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 39
- 229910052742 iron Inorganic materials 0.000 description 18
- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 4
- 238000000227 grinding Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- QNRATNLHPGXHMA-XZHTYLCXSA-N (r)-(6-ethoxyquinolin-4-yl)-[(2s,4s,5r)-5-ethyl-1-azabicyclo[2.2.2]octan-2-yl]methanol;hydrochloride Chemical compound Cl.C([C@H]([C@H](C1)CC)C2)CN1[C@@H]2[C@H](O)C1=CC=NC2=CC=C(OCC)C=C21 QNRATNLHPGXHMA-XZHTYLCXSA-N 0.000 description 3
- 229910001748 carbonate mineral Inorganic materials 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000012991 xanthate Substances 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 229910052604 silicate mineral Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical group [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003818 cinder Substances 0.000 description 1
- 229910001429 cobalt ion Inorganic materials 0.000 description 1
- XLJKHNWPARRRJB-UHFFFAOYSA-N cobalt(2+) Chemical compound [Co+2] XLJKHNWPARRRJB-UHFFFAOYSA-N 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052960 marcasite Inorganic materials 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052952 pyrrhotite Inorganic materials 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides the method that the mixing of a kind of polycrystalline series troilite is reclaimed, to the troilite mineral of crystallographic system multiple in nonferrous metal sulfide mineral flotation tailing and distortion of lattice, adopt that novel compositions activator solution presses down activation, flotation combined by sulfydryl class combined capturing and collecting agent mixing collecting, flotation device with flotation column, float the technology that magnetic combines, while acquisition highgrade pyrite concentrate, guarantee that the mixing of polycrystalline series troilite is reclaimed, reduce mine tailing sulfur-bearing grade, reduce environmental pollution, improve the comprehensive recovery of ferro-sulphur ore.
Description
technical field:
The present invention relates to a kind of method of cubic system, hexagonal crystal system, orthorhombic system, distortion of lattice troilite mixing recovery, belong to ore dressing metallurgical technology field.
background technology:
Troilite comprises pyrite, marcasite, magnetic iron ore, have different crystallographic systems respectively, when there is a certain amount of foreign ion in this several mineral lattice, crystal also can distort, so non-ferrous metal is total in the troilite of association, troilite exists with the form of multiple crystallographic system or distortion of lattice.The not troilite of the isomorphous system and distortion of lattice, surface property differences is very large, floatability is not identical, when showing that nonferrous metal sulfide mineral is separated with troilite, occur that part troilite is easily floating, difficult to suppress, be with in non-ferrous metal concentrate, cause concentrate grade to decline, and part troilite difficulty is floated, easily suppressed, be separated easily with nonferrous metal sulfide mineral.When troilite is reclaimed in mine tailing flotation remaining after nonferrous metal sulfide mineral flotation, some troilite easily float, and are convenient to reclaim, and the difficult flotation of part troilite, be lost in mine tailing, can not effective recycling.For the mine tailing after nonferrous metal sulfide mineral flotation, how to adopt effective method, by the high efficiente callback simultaneously of the troilite of various crystallographic system, improve the rate of recovery of troilite, reduce sulfur content in true tailings, thus the acid waste water that in reduction Tailings Dam, troilite eremacausis produces, reducing environmental pollution, is the important technological problems of flotation engineering area research.
The scientific paper proposition sulfuric acid of " under aerofloat 226 system the behavior of monocline PYRRHOTITE BY FLOTATION and adsorption mechanism thereof " and copper sulphate are activator, aerofloat 226 is collecting agent flotation monocline pyrrhotine, can obtain good technical indicator.
The scientific paper of " certain mine troilite tailings Study of flotation " proposes that sulfuric acid is activator, xanthate is troilite in collecting agent flotation tailing, obtains good technical indicator.
The patent No. be 200410079527.4 patent of invention propose a kind of pyrite Ore that utilizes and produce the method for cinder of sulfur iron ore in high iron and low sulfur type, the pyrite Ore comprising sulfur-bearing grade 8%-48% is sulfuric acid activated through fragmentation, ore grinding, troilite mineral, the flotation of sulfydryl class collecting agent, repeatedly cleaning and Purification, reverse flotation removal of impurities obtains the high purity sulphur iron ore concentrate of sulfur-bearing iron ore mineral more than 95%.But for the polycrystalline series troilite that floatability difference is large, the rate of recovery is lower.
The patent No. be 200810058133.9 patent of invention propose a kind of method of producing high-grade sulfur concentrate from low-grade pyrite mine ore, with the pyrite Ore of sulfur-bearing grade 8% to 25% for raw material, through fragmentation, ore grinding, make troilite and gangue mineral monomer dissociation, ore pulp be given to spiral chute roughly selects obtain sulfur-bearing grade 20% to 35% rough concentrate, this rough concentrate be given to shaking table carries out selected, obtain iron concentrate and shaking table chats that sulfur-bearing grade is greater than 50%, shaking table chats adds sulfuric acid, slurry pH is made to remain on 4.5-6.5, add the flotation of sulfydryl class sulfide mineral collector, flotation rough concentrate is through 4-5 the selected iron concentrate obtaining sulfur-bearing grade and be greater than 50%.But this techniqueflow is complicated, but when ore dressing plant disposal ability is large, the equipment related to is many, and manage not aspect, cost is high.
The patent No. be 200610034275.2 patent of invention propose a kind of method choosing concentrate from low grade pyrite stone.It is characterized in that after sulphur iron ore muck ore grinding, being divided into coarse fraction ore and fine fraction ore with the mesh screen of 0.6 ~ 1.2mm, is 8 ~ 14mm by bed stone granularity, and mine-supplying quantity is that 1 ~ 3.5t/m2.h jigging sorts coarse fraction ore, abandon mine tailing, obtain jig concentrate; After fine fraction ore separates sludge, by being 25 ~ 40% to ore pulp weight concentration, mine-supplying quantity is 0.5 ~ 2.0t/h, slips and sorts, abandon mine tailing through spiral shell, obtains spiral concentrate.The method of this invention can obtain the troilite concentrate that sulfur-bearing grade is 33 ~ 46%.But the troilite concentrate grade obtained is low, is difficult to obtain high-grade slag after roasting.
The patent No. be 201110229252.8 patent of invention propose a kind of method that stepped-flotation separation method produces highgrade pyrite concentrate from troilite, its step comprises with sulfur-bearing grade 15 ~ 36% pyrite Ore for raw material, after muck, ore grinding, carry out a flotation again, obtain iron concentrate I and mine tailing, again flotation is carried out to mine tailing and obtain rougher concentration and rougher tailings, finally 2 ~ 4 selected iron concentrate II are carried out to rougher concentration, 2 ~ 3 times are carried out to rougher tailings and scans to obtain true tailings, iron concentrate I and iron concentrate II are merged to obtain iron concentrate.Technological process is short, and sulfuric acid dosage is few, and production cost is low, and energy consumption is low, gained iron concentrate sulfur-bearing grade > 48%.The troilite that this technology coexists to polycrystalline series, the rate of recovery is not high.
The feature of above Method and Technology is: adopt sulfuric acid and copper sulphate etc. to be activator, to adopt xanthate and black powder to be collecting agent, by repeatedly selected, obtain high-grade iron concentrate; Utilize the heavy feature of troilite, gravity treatment and flotation combine, and while obtaining highgrade pyrite concentrate, reduce reagent consumption, reduce processing cost; Adopt stepped-flotation separation, a small amount of dosing, decreases sulfuric acid dosage and collector dosage; For monoclinic magnetic iron ore, employing butyl ammonium aerofloat is collecting agent, obtains the effect better than xanthate.
But for non-ferrous metal association troilite altogether, be generally the mixture of polycrystalline series troilite, isomorphous system troilite does not have different floatabilities, single can obtain high-grade concentrate with measures such as simple collecting agent combination, combined process of gravity separation plus flotation, change flowage structures, but all there is no the higher rate of recovery, the acquisition of high-grade concentrate sacrifices the rate of recovery of sulphur, resource does not obtain high efficiente callback and utilizes, and the environmental problem that the troilite eremacausis be simultaneously lost in mine tailing produces acid waste water is not also solved very well.Therefore; the new techniques and methods adopted; while acquisition highgrade pyrite concentrate; guarantee that the mixing of polycrystalline series troilite is reclaimed; improve the troilite rate of recovery; reduce mine tailing sulfur-bearing grade, reduce environmental pollution, become the vital task that non-ferrous metal is total to association ferro-sulphur ore efficiency utilization and protection of the environment.
summary of the invention:
The invention provides the method that the mixing of a kind of polycrystalline series troilite is reclaimed, object is the troilite mineral to crystallographic system multiple in nonferrous metal sulfide mineral flotation tailing and distortion of lattice, adopt the process of separating and pressing down activation, mixing collecting, column associating, floating magnetic associating, while acquisition highgrade pyrite concentrate, guarantee that the mixing of polycrystalline series troilite is reclaimed, improve the troilite rate of recovery, reduce mine tailing sulfur-bearing grade, reduce environmental pollution.
the present invention is achieved through the following technical solutions:
1, vulcanized sodium, sulphur, sodium sulphate and the water ratio in 1:1.2 ~ 1.3:5 ~ 6:50 is mixed, heat to 70 ~ 80 DEG C of stirrings 3 hours, be cooled to normal temperature and become combination solution but activator A, butyl ammonium aerofloat and butyl xanthate are mixed into combined capturing and collecting agent B in the ratio of 1:2 ~ 3, lauryl mercaptan and fusel are mixed into supplementary catching agent C in the ratio of 1:2 ~ 3;
2, for the polycrystalline series mix sulphur iron ore mine after nonferrous metal sulfide mineral flotation, ore pulp mass percentage concentration is 25% ~ 35%, add sulfuric acid, regulate pH values of pulp to 5.5 ~ 7, add combination to separate but activator A4000 ~ 12000ml/t, stir 3 ~ 5 minutes, add combined capturing and collecting agent B100 ~ 500g/t, add supplementary catching agent C10 ~ 20g/t, stir 2 ~ 4 minutes, 8 ~ 12 minutes roughly selecting is carried out with flotation device, obtain troilite rough concentrate, mine tailing after roughly selecting adds combined capturing and collecting agent B100 ~ 200g/t, scan three times, time of scanning adds up to 15 ~ 20 minutes, scavenger concentrate returns to be roughly selected,
3, troilite rough concentrate is put into agitator, add combined capturing and collecting agent B50 ~ 100g/t, stir 3 ~ 5 minutes, then put into flotation column carry out twice selected, the time of primary cleaning and recleaning is respectively 5 ~ 8 minutes and 3 ~ 5 minutes, obtain highgrade pyrite concentrate, what primary cleaner tailing returned step 2 roughly selects in flotation device, and the mine tailing of recleaning returns in the flotation column of primary cleaning;
4, scanning mine tailing magnetic field intensity is the magnetic separation of 800 ~ 1200Oe low-intensity (magnetic) separator, and obtain magnetic troilite concentrate, the flotation concentrate after this magnetic troilite concentrate and recleaning is merged into troilite concentrate, and magnetic tailing is true tailings.
Troilite comprises cubic system, hexagonal crystal system, orthorhombic system FeS
2with the distortion of lattice troilite that FeS and impurity metal ion cause.Polycrystalline series mix sulphur iron ore is the sulfur-bearing mine tailing after nonferrous metal sulfide mineral flotation.
the present invention has the following advantages and good effect:
1, adopt combination solution to press down activator and reconstruct oxidized troilite surface, improve the floatability on various not isomorphous system troilite surface, improve the slurry pH of pyrite flotation;
2, adopt combined capturing and collecting agent, meet not isomorphous system troilite and, to the requirement of different collecting agent component, improve the comprehensive collecting ability of collecting agent;
3, selected employing flotation column, decreases concentration times, improves concentrate grade, roughly selects and scan employing flotation device, ensure that slightly compared with the rate of recovery of particle troilite;
4, pyrite flotation mine tailing adopts magnetic separation to reclaim the orthorhombic system magnetic iron ore of floatability difference again, ensure that the overall recovery of troilite, reduces the sulfur content of mine tailing.
accompanying drawing illustrates:
Fig. 1 is process chart of the present invention.
detailed description of the invention:
embodiment one:
Nonferrous metal sulfide mineral flotation tailing sulfur-bearing grade 28%, troilite is by cubic system, hexagonal crystal system, rhombic FeS
2with FeS composition, part FeS
2there is zinc, gold, cobalt ions with in FeS lattice, impel distortion of lattice, gangue mineral is mainly quartz and silicate mineral, a small amount of carbonate mineral.
1, vulcanized sodium, sulphur, sodium sulphate and the water ratio in 1:1.2:5:50 is mixed, heat to 70 ~ 80 DEG C of stirrings 3 hours, be cooled to normal temperature and become combination solution but activator A, butyl ammonium aerofloat and butyl xanthate are mixed into combined capturing and collecting agent B in the ratio of 1:3, lauryl mercaptan and fusel are mixed into supplementary catching agent C in the ratio of 1:2.
2, ore pulp mass percentage concentration is 30%, adds sulfuric acid, regulates pH values of pulp to 5.5, add combination to separate but activator A12000ml/t, stir 3 ~ 5 minutes, add combined capturing and collecting agent B300g/t, add supplementary catching agent C10g/t, stir 2 ~ 4 minutes, carry out 8 ~ 12 minutes roughly selecting with flotation device, obtain troilite rough concentrate, mine tailing after roughly selecting adds combined capturing and collecting agent B100g/t, scan three times, the time of scanning adds up to 15 ~ 20 minutes, and scavenger concentrate returns to be roughly selected.
3, troilite rough concentrate is put into agitator, add combined capturing and collecting agent B80g/t, stir 3 ~ 5 minutes, then put into flotation column carry out twice selected, the time of primary cleaning and recleaning is respectively 5 ~ 8 minutes and 3 ~ 5 minutes, obtain highgrade pyrite concentrate, what primary cleaner tailing returned step 2 roughly selects in flotation device, and the mine tailing of recleaning returns in the flotation column of primary cleaning.
4, scanning mine tailing magnetic field intensity is the magnetic separation of 1200Oe low-intensity (magnetic) separator, and obtain magnetic troilite concentrate, the flotation concentrate after this magnetic troilite concentrate and recleaning is merged into troilite concentrate, and magnetic tailing is true tailings.
Iron concentrate grade: Fe+S94%, the troilite rate of recovery 95%, mine tailing sulfur-bearing 1%.
embodiment two:
Nonferrous metal sulfide mineral flotation tailing sulfur-bearing grade 15%, troilite is by cubic system, rhombic FeS
2with FeS composition, gangue mineral is mainly quartz and silicate mineral, a small amount of carbonate mineral and magnetic iron ore.
1, vulcanized sodium, sulphur, sodium sulphate and the water ratio in 1:1.25:5.5:50 is mixed, heat to 70 ~ 80 DEG C of stirrings 3 hours, be cooled to normal temperature and become combination solution but activator A, butyl ammonium aerofloat and butyl xanthate are mixed into combined capturing and collecting agent B in the ratio of 1:2.5, lauryl mercaptan and fusel are mixed into supplementary catching agent C in the ratio of 1:2.5.
2, ore pulp mass percentage concentration is 35%, adds sulfuric acid, regulates pH values of pulp to 6, add combination to separate but activator A8000ml/t, stir 3 ~ 5 minutes, add combined capturing and collecting agent B200g/t, add supplementary catching agent C15g/t, stir 2 ~ 4 minutes, carry out 8 ~ 12 minutes roughly selecting with flotation device, obtain troilite rough concentrate, mine tailing after roughly selecting adds combined capturing and collecting agent B150g/t, scan three times, the time of scanning adds up to 15 ~ 20 minutes, and scavenger concentrate returns to be roughly selected.
3, troilite rough concentrate is put into agitator, add combined capturing and collecting agent B60g/t, stir 3 ~ 5 minutes, then put into flotation column carry out twice selected, the time of primary cleaning and recleaning is respectively 5 ~ 8 minutes and 3 ~ 5 minutes, obtain highgrade pyrite concentrate, what primary cleaner tailing returned step 2 roughly selects in flotation device, and the mine tailing of recleaning returns in the flotation column of primary cleaning.
4, scanning mine tailing magnetic field intensity is the magnetic separation of 1000Oe low-intensity (magnetic) separator, and obtain magnetic troilite concentrate, the flotation concentrate after this magnetic troilite concentrate and recleaning is merged into troilite concentrate, and magnetic tailing is true tailings.
Iron concentrate grade: Fe+S91%, the troilite rate of recovery 92%, mine tailing sulfur-bearing 0.8%.
embodiment three:
Nonferrous metal sulfide mineral flotation tailing sulfur-bearing grade 10%, troilite is by cubic system, rhombic FeS
2with FeS composition, gangue mineral is mainly ferrosilicate mineral, a small amount of carbonate mineral.
1, vulcanized sodium, sulphur, sodium sulphate and the water ratio in 1:1.3:6:50 is mixed, heat to 70 ~ 80 DEG C of stirrings 3 hours, be cooled to normal temperature and become combination solution but activator A, butyl ammonium aerofloat and butyl xanthate are mixed into combined capturing and collecting agent B in the ratio of 1:3, lauryl mercaptan and fusel are mixed into supplementary catching agent C in the ratio of 1:3.
2, ore pulp mass percentage concentration is 33%, adds sulfuric acid, regulates pH values of pulp to 7, add combination to separate but activator A4000ml/t, stir 3 ~ 5 minutes, add combined capturing and collecting agent B500g/t, add supplementary catching agent C20g/t, stir 2 ~ 4 minutes, carry out 8 ~ 12 minutes roughly selecting with flotation device, obtain troilite rough concentrate, mine tailing after roughly selecting adds combined capturing and collecting agent B200g/t, scan three times, the time of scanning adds up to 15 ~ 20 minutes, and scavenger concentrate returns to be roughly selected.
3, troilite rough concentrate is put into agitator, add combined capturing and collecting agent B100g/t, stir 3 ~ 5 minutes, then put into flotation column carry out twice selected, the time of primary cleaning and recleaning is respectively 5 ~ 8 minutes and 3 ~ 5 minutes, obtain highgrade pyrite concentrate, what primary cleaner tailing returned step 2 roughly selects in flotation device, and the mine tailing of recleaning returns in the flotation column of primary cleaning.
4, scanning mine tailing magnetic field intensity is the magnetic separation of 800Oe low-intensity (magnetic) separator, and obtain magnetic troilite concentrate, the flotation concentrate after this magnetic troilite concentrate and recleaning is merged into troilite concentrate, and magnetic tailing is true tailings.
Iron concentrate grade: Fe+S90%, the troilite rate of recovery 90%, mine tailing sulfur-bearing 0.7%.
Claims (3)
1. a method for polycrystalline series troilite mixing recovery, is characterized in that carrying out according to the following steps:
(1) vulcanized sodium, sulphur, sodium sulphate and the water ratio in 1:1.2 ~ 1.3:5 ~ 6:50 is mixed, heat to 70 ~ 80 DEG C of stirrings 3 hours, be cooled to normal temperature and become combination solution but activator A, butyl ammonium aerofloat and butyl xanthate are mixed into combined capturing and collecting agent B in the ratio of 1:2 ~ 3, lauryl mercaptan and fusel are mixed into supplementary catching agent C in the ratio of 1:2 ~ 3;
(2) in mass percentage concentration be 25% ~ 35% polycrystalline series mix sulphur iron ore slurry in, add sulfuric acid, regulate pH values of pulp to 5.5 ~ 7, add combination to separate but activator A4000 ~ 12000ml/t, stir 3 ~ 5 minutes, add combined capturing and collecting agent B100 ~ 500g/t, add supplementary catching agent C10 ~ 20g/t, stir 2 ~ 4 minutes, carry out 8 ~ 12 minutes roughly selecting with flotation device, obtain troilite rough concentrate, mine tailing after roughly selecting adds combined capturing and collecting agent B100 ~ 200g/t, scan three times, the time of scanning adds up to 15 ~ 20 minutes, and scavenger concentrate returns to be roughly selected;
(3) troilite rough concentrate is put into agitator, add combined capturing and collecting agent B50 ~ 100g/t, stir 3 ~ 5 minutes, then put into flotation column carry out twice selected, the time of primary cleaning and recleaning is respectively 5 ~ 8 minutes and 3 ~ 5 minutes, obtain highgrade pyrite concentrate, what primary cleaner tailing returned step 2 roughly selects in flotation device, and the mine tailing of recleaning returns in the flotation column of primary cleaning;
(4) scanning mine tailing magnetic field intensity is the magnetic separation of 800 ~ 1200Oe low-intensity (magnetic) separator, and obtain magnetic troilite concentrate, the flotation concentrate after this magnetic troilite concentrate and recleaning is merged into troilite concentrate, and magnetic tailing is true tailings.
2. the method for a kind of polycrystalline series troilite mixing recovery according to claim 1, it is characterized in that, troilite comprises cubic system, hexagonal crystal system, orthorhombic system FeS
2with the distortion of lattice troilite that FeS and impurity metal ion cause.
3. the method for a kind of polycrystalline series troilite mixing recovery according to claim 1, it is characterized in that, polycrystalline series mix sulphur iron ore is the sulfur-bearing mine tailing after nonferrous metal sulfide mineral flotation.
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| CN105855036B (en) * | 2016-05-10 | 2018-07-03 | 中钢集团马鞍山矿山研究院有限公司 | A kind of shallow crust structures beneficiation method of high sulfur copper ore |
| CN107755099B (en) * | 2017-10-24 | 2019-08-27 | 洛阳坤宇矿业有限公司 | A kind of column machine joint two close cycles silt particle floatation process |
| CN108246514B (en) * | 2018-01-15 | 2018-12-28 | 中国地质科学院矿产综合利用研究所 | Full-grain-level flotation separation method for clay type pyrite |
| CN108097453B (en) * | 2018-02-12 | 2019-09-10 | 内蒙古薪宝高科技开发有限公司 | The method of magnetic iron ore is removed from iron concentrate containing high sulphur |
| CN108745625B (en) * | 2018-05-31 | 2020-04-21 | 铜陵有色金属集团股份有限公司 | Method for recycling magnetite, monoclinic pyrrhotite, hexagonal pyrrhotite and pyrite step by step |
| CN109092551B (en) * | 2018-07-27 | 2020-05-05 | 郑州中科新兴产业技术研究院 | Process method for preparing ultra-pure sulfur concentrate |
| CN109127110A (en) * | 2018-08-10 | 2019-01-04 | 江苏凯达石英股份有限公司 | Pyrite-type quartz sand flotation purifying technique |
| CN109647615B (en) * | 2018-12-29 | 2020-03-20 | 南京银茂铅锌矿业有限公司 | Beneficiation method and beneficiation system for improving recovery rate of refractory zinc concentrate |
| CN109647614A (en) * | 2018-12-29 | 2019-04-19 | 南京银茂铅锌矿业有限公司 | Column machine rapidly and efficiently selects zinc method and ore-sorting system |
| CN110064519B (en) * | 2019-04-26 | 2020-11-03 | 内蒙古大中矿业股份有限公司 | Production process of high-grade sulfur concentrate |
| CN111151373B (en) * | 2019-06-17 | 2022-04-08 | 华北理工大学 | Method for extracting carbon, iron and zinc from blast furnace cloth bag dust |
| CN112871459B (en) * | 2021-01-11 | 2021-11-16 | 中国地质科学院矿产综合利用研究所 | Flotation separation reagent system for sulfur-cobalt ore and application thereof |
| CN115055277B (en) * | 2022-04-27 | 2023-10-13 | 四川化工职业技术学院 | Process for recovering kaolin, sulfur concentrate and titanium concentrate from pyrite tailings |
| CN115007327B (en) * | 2022-07-25 | 2023-08-04 | 矿冶科技集团有限公司 | Beneficiation method for high-carbon refractory pyrite |
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| JPS5952546A (en) * | 1982-09-18 | 1984-03-27 | Dowa Mining Co Ltd | Beneficiation of sulfide ore |
| CN100490981C (en) * | 2006-05-30 | 2009-05-27 | 长沙矿冶研究院 | Beneficiation method for weak magnetic iron ores such as siderite, limonite and siderite paragenetic ore |
| CN101564707B (en) * | 2009-05-15 | 2010-11-10 | 四川安宁铁钛股份有限公司 | Vanadium titano-magnetite screen method |
| CN101850295B (en) * | 2010-05-06 | 2013-01-16 | 中钢集团马鞍山矿山研究院有限公司 | Beneficiation method for producing high-quality iron ore concentrate by low-grade magnetic iron ore |
| CN103056028B (en) * | 2013-01-23 | 2015-06-24 | 沈阳华大科技有限公司 | Magnetic ore separation equipment and method |
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