CN108097453B - The method of magnetic iron ore is removed from iron concentrate containing high sulphur - Google Patents
The method of magnetic iron ore is removed from iron concentrate containing high sulphur Download PDFInfo
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- CN108097453B CN108097453B CN201810147521.8A CN201810147521A CN108097453B CN 108097453 B CN108097453 B CN 108097453B CN 201810147521 A CN201810147521 A CN 201810147521A CN 108097453 B CN108097453 B CN 108097453B
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- iron ore
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 356
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 178
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000012141 concentrate Substances 0.000 title claims abstract description 73
- 239000005864 Sulphur Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title claims abstract description 20
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 19
- 239000012190 activator Substances 0.000 claims abstract description 16
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 10
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 6
- 229910000162 sodium phosphate Inorganic materials 0.000 claims abstract description 6
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims description 53
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 claims description 26
- 238000005188 flotation Methods 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 20
- ZKDDJTYSFCWVGS-UHFFFAOYSA-M sodium;diethoxy-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Na+].CCOP([S-])(=S)OCC ZKDDJTYSFCWVGS-UHFFFAOYSA-M 0.000 claims description 14
- 230000004913 activation Effects 0.000 claims description 7
- 238000003801 milling Methods 0.000 claims description 7
- 238000003756 stirring Methods 0.000 claims description 7
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 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
- 239000011734 sodium Substances 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000002253 acid Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 abstract description 31
- 239000011593 sulfur Substances 0.000 abstract description 31
- 238000011084 recovery Methods 0.000 abstract description 23
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 9
- 239000011707 mineral Substances 0.000 abstract description 9
- 230000003647 oxidation Effects 0.000 abstract description 8
- 238000007254 oxidation reaction Methods 0.000 abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 5
- 238000010494 dissociation reaction Methods 0.000 abstract description 2
- 230000005593 dissociations Effects 0.000 abstract description 2
- 239000000178 monomer Substances 0.000 abstract description 2
- 239000002516 radical scavenger Substances 0.000 description 12
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 4
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 235000011941 Tilia x europaea Nutrition 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000004571 lime Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- TUFHBDDWCJZWIF-UHFFFAOYSA-N 1,3-benzothiazole;sodium Chemical compound [Na].C1=CC=C2SC=NC2=C1 TUFHBDDWCJZWIF-UHFFFAOYSA-N 0.000 description 1
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 description 1
- CONMNFZLRNYHIQ-UHFFFAOYSA-N 3-methylbutoxymethanedithioic acid Chemical compound CC(C)CCOC(S)=S CONMNFZLRNYHIQ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 1
- XAQHXGSHRMHVMU-UHFFFAOYSA-N [S].[S] Chemical compound [S].[S] XAQHXGSHRMHVMU-UHFFFAOYSA-N 0.000 description 1
- 230000003213 activating effect Effects 0.000 description 1
- 239000004411 aluminium 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
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- TUZCOAQWCRRVIP-UHFFFAOYSA-N butoxymethanedithioic acid Chemical compound CCCCOC(S)=S TUZCOAQWCRRVIP-UHFFFAOYSA-N 0.000 description 1
- HQABUPZFAYXKJW-UHFFFAOYSA-O butylazanium Chemical compound CCCC[NH3+] HQABUPZFAYXKJW-UHFFFAOYSA-O 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 229940116901 diethyldithiocarbamate Drugs 0.000 description 1
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 description 1
- MZGNSEAPZQGJRB-UHFFFAOYSA-N dimethyldithiocarbamic acid Chemical compound CN(C)C(S)=S MZGNSEAPZQGJRB-UHFFFAOYSA-N 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- ZHPNWZCWUUJAJC-UHFFFAOYSA-N fluorosilicon Chemical compound [Si]F ZHPNWZCWUUJAJC-UHFFFAOYSA-N 0.000 description 1
- 239000003112 inhibitor Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000008177 pharmaceutical agent Substances 0.000 description 1
- 238000002360 preparation method Methods 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
- 239000011028 pyrite Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- 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
- B03D1/002—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
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—Modifying reagents for adjusting pH or conductivity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/02—Collectors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2203/00—Specified materials treated by the flotation agents; Specified applications
- B03D2203/02—Ores
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The method that the present invention relates to a kind of to remove magnetic iron ore from iron concentrate containing high sulphur, belongs to mineral engineering field.The higher quality to iron ore concentrate of the sulfur content of iron concentrate containing high sulphur, which causes, to be seriously affected.Magnetic iron ore is oxidizable, easy argillization, and degree of oxidation is deep mixed, cause to be difficult to be down to the sulphur in iron ore concentrate 0.3% hereinafter, and iron ore concentrate rate of recovery loss it is larger.The present invention, can be by most of magnetic iron ore monomer dissociation and overground generation argillization by using ore grinding appropriate.Use the mixture of efficient, easy aluminum sulfate or aluminum sulfate and sodium phosphate, ammonium fluosilicate for the pH regulator and activator of magnetic iron ore, and the selective and preferable collecting agent of collecting performance, magnetic iron ore mineral surfaces are activated well, and the state-of-charge of the mineral surfaces in ore pulp is controlled well, efficiently separating for magnetic iron ore and magnetic iron ore is realized, the fine quality iron concentrate and magnetic iron ore rough concentrate of high-grade and high-recovery are obtained.
Description
Technical field
The invention belongs to mineral engineering fields, and in particular to a kind of side that magnetic iron ore is removed from iron concentrate containing high sulphur
Method.
Background technique
Iron concentrate containing high sulphur sulfur content is higher, generally 2% or more, causes and seriously affects to the quality of iron ore concentrate.Iron essence
Containing sulfur minerals present in mine not only pollute atmosphere during the sintering process, but also in order to guarantee that desulfurization effect must be added to more
Lime increases, coke ratio raising so as to cause the quantity of slag, and in addition the sulphur in steel can be also easy to produce " hot-short " in steel hot-working.Only
There is the sulfur content for reducing iron ore concentrate, influence of the sulphur to subsequent job could be eliminated, the grade of iron ore concentrate could be improved.In iron ore concentrate
Containing sulfur minerals be generally magnetic iron ore, magnetic iron ore is easier to aoxidize than other sulfide minerals, under oxygen and water effect,
Magnetic iron ore quickly aoxidizes, and oxidation rate is 20 times~100 times of pyrite.Additionally, due to magnetic iron ore crystal structure difference
Caused composition and electronic structure difference will affect magnetic iron ore oxidation to degree, the presence of microelement and content is how many, ring
Border temperature all can oxidation to magnetic iron ore and oxidation rate have an impact.Therefore, magnetic iron ore is in floatation process, due to it
Oxidizable, argillization, and degree of oxidation is deep mixed, belongs to the mineral of more difficult removing.Magnetic iron ore is removed in iron ore concentrate
Method is generally floatation, relatively more to the Oxidized copper ores of removing magnetic iron ore progress at present, mainly to flotation activating, suppression
The research of preparation and collecting agent.The activator of research includes sulfuric acid, copper sulphate, hydrochloric acid, oxalic acid, ammonium nitrate, ammonium sulfate, fluosilicic acid
Sodium, vulcanized sodium etc.;Inhibitor includes lime, sulfurous acid, sodium humate, sodium sulphate, dimethyldithiocarbamate, cyaniding
Object etc.;Collecting agent includes ethyl xanthogenate, butyl xanthate, diethyldithiocarbamate, isoamyl xanthate, butyl ammonium aerofloat, sulfydryl sodium benzothiazole etc..These are floating
The magnetic iron ore separating effect for selecting medicament deeper to iron concentrate containing high sulphur, especially degree of oxidation is bad, and being difficult will be in iron ore concentrate
Sulphur be down to 0.3% hereinafter, and iron ore concentrate the rate of recovery loss it is more, below 88%.
Summary of the invention
The method that the object of the present invention is to provide a kind of from iron concentrate containing high sulphur removes magnetic iron ore, this method is by iron ore concentrate
In sulphur be down to 0.3% hereinafter, and the rate of recovery of iron ore concentrate reach 90% or more, reduce pollution of the sulphur to atmosphere.
The purpose of the present invention is realized as follows.
1, the processing of raw material;
Iron concentrate containing high sulphur is subjected to ore grinding, -200 mesh is milled to and accounts for 70-85%, then ore milling product is concentrated, is concentrated
It is 35-45% to pulp density;
2, the activation of magnetic iron ore;
Using the ore pulp that above-mentioned steps obtain as the raw material of flotation magnetic iron ore, using aluminum sulfate or mass ratio 1-2:3-1:
The mixture or matter of 2-1 sodium phosphate, the mixture of ammonium fluosilicate and aluminum sulfate or mass ratio 3-1:1-2 aluminum sulfate and ammonium fluosilicate
Measure the pH regulator and activator than the mixture of 1-2:3-2 aluminum sulfate and sodium phosphate as magnetic iron ore, pH regulator and work
Agent dosage is 1.5-4.5kg/t iron concentrate containing high sulphur, and 3-8min is stirred under natural temperature, adjusts pH value 4.5-5.5;
3, magnetic iron ore roughing;
Mass ratio 3-2:2-1:1- is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of 0.5 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.2-
1-5min is stirred under the conditions of 0.8kg/t iron concentrate containing high sulphur, natural temperature, is carried out roughing and is sorted magnetic iron ore, obtains sulfur grade 17-
25%, sand setting (iron ore concentrate) of the magnetic iron ore rougher concentration and sulfur grade of rate of recovery 80-86% less than 0.55%, sand setting conduct
Scan the raw material of recycling magnetic iron ore;
4, magnetic iron ore is scanned;
The sand setting that above-mentioned steps obtain is scanned into raw material as flotation, with mass ratio 3-2:2-1:1-0.5 amyl xanthic acid
The collecting agent of sodium, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.05-0.15kg/t high-sulfur iron essence
Mine stirs 1-3min under the conditions of natural temperature, is then scanned under natural ph, and sulfur grade 8-15%, recycling are obtained
Scavenger concentrate and sulfur grade 0.1-0.3%, the full Iron grade of rate 6-11% are greater than the iron ore concentrate of 67%, rate of recovery 90-95%;
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
Compared with prior art, the technology of the present invention effect includes:
This technology uses ore grinding appropriate first, by most of magnetic iron ore monomer dissociation, and cannot overground generation argillization,
On the one hand ore grinding cost is saved, while obtains the Suitable base of removing magnetic iron ore;Using efficient activator and pH tune
It whole dose, is well activated magnetic iron ore mineral surfaces, and controls the charged shape of the mineral surfaces in ore pulp well
State;Using have preferably selectivity and collecting performance combined capturing and collecting agent, can the magnetic iron ore different to degree of oxidation catch simultaneously
It receives, obtains the fine quality iron concentrate and magnetic iron ore rough concentrate of high-grade and high-recovery, realize magnetic iron ore and magnetic iron ore
Efficiently separate, solve the separation problem of iron concentrate containing high sulphur and magnetic iron ore.
The present invention, i.e., will using efficient pharmaceutical agent combinations using a kind of method for removing magnetic iron ore from iron concentrate containing high sulphur
Magnetic iron ore is removed from iron ore concentrate, and the sulphur in iron ore concentrate is made to be down to 0.3% hereinafter, and guaranteeing that the rate of recovery of iron ore concentrate exists
90% or more, the sulfur content of iron ore concentrate is not only reduced, influence of the sulphur to subsequent job is eliminated, reduces dirt of the sulphur to atmosphere
Dye, and the loss of iron ore concentrate is reduced, iron ore concentrate is become into fine quality iron concentrate.
Detailed description of the invention
Fig. 1 is the process flow chart for removing the method for magnetic iron ore in the present invention from iron concentrate containing high sulphur.
Specific embodiment
It is described below and specific embodiments of the present invention is fully shown, to enable those skilled in the art to practice it
?.
Embodiment 1
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, mainly includes following components:
1, the processing of raw material;
Full Iron grade 67.30%, the iron concentrate containing high sulphur containing sulfur grade 2.02% are subjected to ore grinding, -200 mesh is milled to and accounts for
82.1%, then ore milling product is concentrated, being concentrated into ore pulp mass concentration is 40%.
2, the activation of magnetic iron ore;
PH using the ore pulp that above-mentioned steps obtain as the raw material of flotation magnetic iron ore, using aluminum sulfate as magnetic iron ore
Regulator and activator, pH regulator and activator level are 2.2kg/t, and 5min is stirred under natural temperature, and adjustment pH value is
5。
3, magnetic iron ore roughing;
Mass ratio 2.5:1.5:0.6 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.4kg/t,
It stirs 2min under the conditions of natural temperature, carries out roughing and sort magnetic iron ore, obtain sulfur grade 22.35%, the rate of recovery 85.43%
The sand setting (iron ore concentrate) of magnetic iron ore rougher concentration and sulfur grade 0.32%, the raw material that sand setting is scanned as magnetic iron ore.
4, magnetic iron ore is scanned;
Using above-mentioned steps obtain sand setting scan raw material as flotation, with mass ratio 2.5:1.5:0.6 amylic sodium xanthogenate,
The collecting agent of sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.08kg/t, in natural temperature condition
Lower stirring 2min, is then scanned under natural ph, obtain sulfur grade 9.28%, the rate of recovery 6.46% scavenger concentrate and
Sulfur grade 0.18%, full Iron grade 68.40%, the rate of recovery 92.27% iron ore concentrate.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
Embodiment 2
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, mainly includes following components:
1, the processing of raw material;
Full Iron grade 67.40%, the iron concentrate containing high sulphur containing sulfur grade 3.01% are subjected to ore grinding, -200 mesh is milled to and accounts for
75.5%, then ore milling product is concentrated, being concentrated into pulp density is 38.5%.
2, the activation of magnetic iron ore;
PH using the ore pulp that above-mentioned steps obtain as the raw material of flotation magnetic iron ore, using aluminum sulfate as magnetic iron ore
Regulator and activator, pH regulator and activator level are 4kg/t, and 6min is stirred under natural temperature, and adjustment pH value is
4.6。
3, magnetic iron ore roughing;
Mass ratio 3:1:0.8 amyl is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.60kg/t, nature
5min is stirred under the conditions of temperature, roughing is carried out and sorts magnetic iron ore, and it is yellow to obtain sulfur grade 24.18%, the magnetic of the rate of recovery 83.12%
The sand setting (iron ore concentrate) of iron ore rougher concentration and sulfur grade 0.52%, the raw material that sand setting is scanned as magnetic iron ore.
4, magnetic iron ore is scanned;
The sand setting that above-mentioned steps obtain is scanned into raw material as flotation, with mass ratio 3:1:0.8 amylic sodium xanthogenate, ethyl
The collecting agent of sodium xanthogenate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.16kg/t are stirred under the conditions of natural temperature
5min is mixed, is then scanned under natural ph, the scavenger concentrate and sulphur of sulfur grade 14.55%, the rate of recovery 7.61% are obtained
Grade 0.29%, full Iron grade 68.60%, the rate of recovery 90.30% iron ore concentrate.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
Embodiment 3
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, mainly includes following components:
1, the processing of raw material;
Full Iron grade 66.70%, the iron concentrate containing high sulphur containing sulfur grade 1.41% are subjected to ore grinding, -200 mesh is milled to and accounts for
76.5%, then ore milling product is concentrated, being concentrated into pulp density is 41.1%.
2, the activation of magnetic iron ore;
Using the ore pulp that above-mentioned steps obtain as the raw material of flotation magnetic iron ore, using mass ratio 1:1 sodium phosphate and sulfuric acid
PH regulator and activator of the mixture of aluminium as magnetic iron ore, pH regulator and activator level are 2.0kg/t, in nature
At a temperature of stir 5min, adjustment pH value is 5.1.
3, magnetic iron ore roughing;
Mass ratio 2:2:0.5 amyl is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.30kg/t, nature
5min is stirred under the conditions of temperature, roughing is carried out and sorts magnetic iron ore, and it is yellow to obtain sulfur grade 20.93%, the magnetic of the rate of recovery 82.79%
The sand setting (iron ore concentrate) of iron ore rougher concentration and sulfur grade 0.26%, the raw material that sand setting is scanned as magnetic iron ore.
4, magnetic iron ore is scanned;
The sand setting that above-mentioned steps obtain is scanned into raw material as flotation, with mass ratio 2:2:0.5 amylic sodium xanthogenate, ethyl
The collecting agent of sodium xanthogenate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.08kg/t are stirred under the conditions of natural temperature
2min is mixed, is then scanned under natural ph, the scavenger concentrate and sulphur product of sulfur grade 8.67%, the rate of recovery 7.95% are obtained
Position 0.14%, full Iron grade 67.50%, the rate of recovery 94.12% iron ore concentrate.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
Embodiment 4
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, mainly includes following components:
1, the processing of raw material;
Full Iron grade 66.50%, the iron concentrate containing high sulphur containing sulfur grade 2.51% are subjected to ore grinding, -200 mesh is milled to and accounts for
78.6%, then ore milling product is concentrated, being concentrated into pulp density is 38.8%.
2, the activation of magnetic iron ore;
Using above-mentioned steps obtain ore pulp be used as flotation magnetic iron ore raw material, using mass ratio 2:1.5 ammonium fluosilicate with
PH regulator and activator of the mixture of aluminum sulfate as magnetic iron ore, pH regulator and activator level are 2.8kg/t,
5min is stirred under natural temperature, adjustment pH value is 4.9.
3, magnetic iron ore roughing;
Mass ratio 3:2:0.8 amyl is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.45kg/t, nature
6min is stirred under the conditions of temperature, roughing is carried out and sorts magnetic iron ore, and it is yellow to obtain sulfur grade 24.51%, the magnetic of the rate of recovery 81.43%
The sand setting (iron ore concentrate) of iron ore rougher concentration and sulfur grade 0.50%, the raw material that sand setting is scanned as magnetic iron ore.
4, magnetic iron ore is scanned;
The sand setting that above-mentioned steps obtain is scanned into raw material as flotation, with mass ratio 3:2:0.8 amylic sodium xanthogenate, ethyl
The collecting agent of sodium xanthogenate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.12kg/t are stirred under the conditions of natural temperature
3min is mixed, is then scanned under natural ph, the scavenger concentrate and sulphur of sulfur grade 13.16%, the rate of recovery 10.33% are obtained
Grade 0.23%, full Iron grade 67.60%, the rate of recovery 91.11% iron ore concentrate.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
Embodiment 5
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, mainly includes following components:
1, the processing of raw material;
Full Iron grade 67.40%, the iron concentrate containing high sulphur containing sulfur grade 3.01% are subjected to ore grinding, -200 mesh is milled to and accounts for
75.5%, then ore milling product is concentrated, being concentrated into pulp density is 38.5%.
2, the activation of magnetic iron ore;
Using the ore pulp that above-mentioned steps obtain as the raw material of flotation magnetic iron ore, using mass ratio 1:3:2 sodium phosphate, fluorine silicon
PH regulator and activator of the mixture of sour ammonium and aluminum sulfate as magnetic iron ore, pH regulator and activator level are
3.4kg/t, stirs 6min under natural temperature, and adjustment pH value is 4.7.
3, magnetic iron ore roughing;
Mass ratio 3:1:0.8 amyl is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material
The collecting agent of sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.60kg/t, nature
5min is stirred under the conditions of temperature, roughing is carried out and sorts magnetic iron ore, and it is yellow to obtain sulfur grade 24.98%, the magnetic of the rate of recovery 83.80%
The sand setting (iron ore concentrate) of iron ore rougher concentration and sulfur grade 0.54%, the raw material that sand setting is scanned as magnetic iron ore.
4, magnetic iron ore is scanned;
The sand setting that above-mentioned steps obtain is scanned into raw material as flotation, with mass ratio 3:1:0.8 amylic sodium xanthogenate, ethyl
The collecting agent of sodium xanthogenate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.14kg/t are stirred under the conditions of natural temperature
5min is mixed, is then scanned under natural ph, the scavenger concentrate and sulphur of sulfur grade 14.85%, the rate of recovery 7.31% are obtained
Grade 0.30%, full Iron grade 68.60%, the rate of recovery 90.10% iron ore concentrate.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur.
It should be understood that the invention is not limited to the process and structure that are described above and are shown in the accompanying drawings,
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is only limited by the attached claims
System.
Claims (1)
1. a kind of method for removing magnetic iron ore from iron concentrate containing high sulphur, which is characterized in that including following components:
(1) processing of raw material: carrying out ore grinding for iron concentrate containing high sulphur, is milled to -200 mesh and accounts for 76.5%, then carries out ore milling product
Concentration, being concentrated into pulp density is 41.1%;
(2) activation of magnetic iron ore: using the ore pulp that step (1) obtains as the raw material of flotation magnetic iron ore, using mass ratio 1:1
PH regulator and activator of the mixture of sodium phosphate and aluminum sulfate as magnetic iron ore, pH regulator and activator level are
2.0kg/t stirs 5min under natural temperature, and adjustment pH value is 5.1, obtains mixture;
(3) magnetic iron ore roughing: quality is added in the raw material as roughing flotation raw material in the mixture that step (2) are obtained
Collecting agent than 2:2:0.5 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage
0.30kg/t stirs 5min under the conditions of natural temperature, obtains sand setting;
(4) magnetic iron ore is scanned: the sand setting that step (3) obtain is scanned into raw material as flotation, it is yellow with mass ratio 2:2:0.5 amyl
The collecting agent of ortho acid sodium, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.08kg/t, in natural epidemic disaster in booth
2min is stirred under the conditions of degree, is then scanned under natural ph.
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CN110898987B (en) * | 2019-11-13 | 2021-06-22 | 鞍钢集团矿业有限公司 | Oxidation desulfurization method of high-sulfur magnetite concentrate |
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