CN108355841A - The method that fine quality iron concentrate and iron concentrate are produced from iron concentrate containing high sulphur - Google Patents
The method that fine quality iron concentrate and iron concentrate are produced from iron concentrate containing high sulphur Download PDFInfo
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- CN108355841A CN108355841A CN201810147484.0A CN201810147484A CN108355841A CN 108355841 A CN108355841 A CN 108355841A CN 201810147484 A CN201810147484 A CN 201810147484A CN 108355841 A CN108355841 A CN 108355841A
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- concentrate
- iron ore
- magnetic iron
- ore
- iron
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 462
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 231
- 239000012141 concentrate Substances 0.000 title claims abstract description 131
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 77
- 239000005864 Sulphur Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 37
- 239000012190 activator Substances 0.000 claims abstract description 29
- 238000011084 recovery Methods 0.000 claims abstract description 26
- 238000005188 flotation Methods 0.000 claims abstract description 20
- 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 19
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 11
- 239000011707 mineral Substances 0.000 claims abstract description 11
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 9
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 7
- 239000001488 sodium phosphate Substances 0.000 claims abstract description 7
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical compound [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims abstract description 7
- 239000008177 pharmaceutical agent Substances 0.000 claims abstract description 6
- 229910000162 sodium phosphate Inorganic materials 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims description 51
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 claims description 31
- 229910052717 sulfur Inorganic materials 0.000 claims description 30
- 239000011593 sulfur Substances 0.000 claims description 30
- 238000004140 cleaning Methods 0.000 claims description 20
- 239000002516 radical scavenger Substances 0.000 claims description 18
- 239000004576 sand Substances 0.000 claims description 18
- ZKDDJTYSFCWVGS-UHFFFAOYSA-M sodium;diethoxy-sulfanylidene-sulfido-$l^{5}-phosphane Chemical compound [Na+].CCOP([S-])(=S)OCC ZKDDJTYSFCWVGS-UHFFFAOYSA-M 0.000 claims description 18
- 239000002002 slurry Substances 0.000 claims description 17
- 230000004913 activation Effects 0.000 claims description 8
- 230000003647 oxidation Effects 0.000 claims description 8
- 238000007254 oxidation reaction Methods 0.000 claims description 8
- 238000003801 milling Methods 0.000 claims description 6
- 235000011008 sodium phosphates Nutrition 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
- 238000003756 stirring Methods 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 4
- ZOOODBUHSVUZEM-UHFFFAOYSA-N ethoxymethanedithioic acid Chemical compound CCOC(S)=S ZOOODBUHSVUZEM-UHFFFAOYSA-N 0.000 claims 1
- 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
- 229910052952 pyrrhotite Inorganic materials 0.000 abstract 1
- 229910052683 pyrite Inorganic materials 0.000 description 5
- NIFIFKQPDTWWGU-UHFFFAOYSA-N pyrite Chemical compound [Fe+2].[S-][S-] NIFIFKQPDTWWGU-UHFFFAOYSA-N 0.000 description 5
- 239000011028 pyrite Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 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 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 235000008733 Citrus aurantifolia Nutrition 0.000 description 1
- 235000011941 Tilia x europaea Nutrition 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000000571 coke Substances 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
- 239000003814 drug Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000005611 electricity Effects 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
- 239000004571 lime Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 229910052569 sulfide mineral Inorganic materials 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
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/002—Inorganic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D1/00—Flotation
- B03D1/001—Flotation agents
- B03D1/004—Organic compounds
- B03D1/012—Organic compounds containing sulfur
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03D—FLOTATION; DIFFERENTIAL SEDIMENTATION
- B03D2201/00—Specified effects produced by the flotation agents
- B03D2201/007—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
- B03D2203/04—Non-sulfide 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 produce fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur, belongs to mineral engineering field.Magnetic iron ore existing for iron concentrate containing high sulphur of the present invention is oxidizable, easy argillization, it is difficult to by the sulphur in iron ore concentrate be down to 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.Using efficient, easy aluminum sulfate or aluminum sulfate and sodium phosphate, activator and pH regulator of the mixture as PYRRHOTITE BY FLOTATION of ammonium fluosilicate, using selectivity and the 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, obtain the fine quality iron concentrate of high-grade and high-recovery, efficient collecting agent and regulator pharmaceutical agent combinations are used to the magnetic iron ore that throwing removes simultaneously, obtain Grade A iron concentrate.
Description
Technical field
The invention belongs to mineral engineering fields, and in particular to one kind from iron concentrate containing high sulphur produce fine quality iron concentrate and
The method of iron concentrate.
Background technology
Iron concentrate containing high sulphur content is higher, causes and seriously affects to the quality of iron ore concentrate.Sulfur-bearing mine present in iron ore concentrate
Object not only pollutes air in sintering process, but also in order to ensure that desulfurization effect must be added to more lime, so as to cause slag
Amount increases, coke ratio increases, and in addition the sulphur in steel can be also easy to produce " hot-short " in steel hot-working.Only reduce the sulphur of iron ore concentrate
Content could eliminate influence of the sulphur to subsequent job, could improve the grade of iron ore concentrate.Containing sulfur minerals in iron ore concentrate are generally
Magnetic iron ore, magnetic iron ore are easier to aoxidize than other sulfide minerals, under oxygen and water effect, the quick oxygen of magnetic iron ore
Change, oxidation rate is 20 times~100 times of pyrite.Additionally, due to composition caused by magnetic iron ore crystal structure difference and electricity
Minor structure difference can influence magnetic iron ore oxidation to degree, micro- presence and content is how many, environment temperature all can be to magnetic
The oxidation of pyrite and oxidation rate have an impact.Therefore magnetic iron ore is in floatation process, since its is oxidizable, argillization, and
And degree of oxidation is deep mixed, belongs to the mineral of more difficult removing.Magnetic iron ore contains sulphur up to 40%, is the original for making sulfuric acid
Material.The method that magnetic iron ore is removed in iron ore concentrate is generally floatation, at present to activator, the inhibitor of removing magnetic iron ore
It is studied with collecting agent more.These floating agents sort the deeper magnetic iron ore of iron concentrate containing high sulphur, especially degree of oxidation and imitate
Fruit is bad, it is difficult to by the sulphur in iron ore concentrate be down to 0.3% hereinafter, and iron ore concentrate the rate of recovery loss it is larger, less than 88% with
Under.
Invention content
The method that the object of the present invention is to provide a kind of to produce fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur, the party
Method makes the sulphur in iron ore concentrate be down to 0.3% hereinafter, and ensureing that iron ore concentrate 90% or more, is become excellent by the rate of recovery of iron ore concentrate
Matter iron ore concentrate, while the magnetic iron ore of removing is selected into high-quality iron concentrate using efficient pharmaceutical agent combinations, turn waste into wealth, and reduce
Pollution of the sulphur to air.
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 70-80%, then concentrate ore milling product, 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:
2-1 sodium phosphates, the mixture of ammonium fluosilicate and aluminum sulfate or mass ratio 3-1:The mixture or matter of 1-2 aluminum sulfate and ammonium fluosilicate
Amount compares 1-2:PH regulator and activator of the mixture of 3-2 aluminum sulfate and sodium phosphate as magnetic iron ore, pH regulators and work
Agent dosage is 1.5-3.5kg/t, and 3-8min, adjustment pH value 4.5-5.5 are stirred under natural temperature.
3, magnetic iron ore roughing；
Mass ratio 3-2 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material:2-1:1-
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, natural temperature, roughing is carried out and sorts magnetic iron ore, obtains sulfur grade 17-25%, recycling
The magnetic iron ore rougher concentration and sulfur grade of rate 80-86% is less than 0.55% sand setting (iron ore concentrate), and sand setting is yellow as magnetic is scanned
The raw material of 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, in nature
1-3min is stirred under temperature condition, is then scanned under natural ph, and sulfur grade 8-15%, rate of recovery 6-11% are obtained
Scavenger concentrate and sulfur grade 0.1-0.3%, full Iron grade are more 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；
6, magnetic iron ore is selected.
Using the rougher concentration that above-mentioned steps obtain and the raw material that scavenger concentrate is sorted as sulphur, using aluminum sulfate as magnetic Huang
The pH regulators and activator of iron ore, mass ratio 3-2:2-1:1-0.5 amylic sodium xanthogenates, sodium ethylxanthate and fourth Sodium Aerofloat
As the collecting agent of magnetic iron ore, pH regulators and activator level 0.5-1.0kg/t, collector dosage 0.03-0.10kg/t,
4-10min is stirred under the conditions of natural slurry temperature, natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats 1；Certainly
Iron concentrate 1 is stirred 1-3min under conditions of being 0.01-0.02kg/t and carried out by right slurry temperature, natural ph, collector dosage
Recleaning obtains iron concentrate 2 and chats 2；It is carried out under conditions of natural slurry temperature, natural ph, regime of agent blank
Triple cleaning obtains grade 38%-40%, the iron concentrate of rate of recovery 60%-70% and chats 3；Chats 1 since sulfur content is low,
It is removed as tailing throwing, chats 2 and the merging of chats 3 are back to primary cleaning operation.
Technical solution provided in an embodiment of the present invention can include the following benefits：
This technology first use ore grinding appropriate, by most of magnetic iron ore monomer dissociation, but 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 the combined capturing and collecting agent with preferable selectivity and collecting performance, can the magnetic iron ore different to degree of oxidation catch simultaneously
It receives, obtains fine quality iron concentrate.Efficient collecting agent and regulator pharmaceutical agent combinations are used to the magnetic iron ore that throwing removes simultaneously, are obtained
Grade A iron concentrate, has achieved the purpose that synthetical recovery, has turned waste into wealth.
The present invention is used efficient using a kind of method producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur
Pharmaceutical agent combinations remove magnetic iron ore from iron ore concentrate, and the sulphur in iron ore concentrate is made to be down to 0.3% hereinafter, and ensureing iron ore concentrate
The rate of recovery becomes fine quality iron concentrate 90% or more, by iron ore concentrate, while the magnetic iron ore of removing is used efficient medicament group
It closes and Grade A iron concentrate is obtained by flotation.
It should be understood that above general description and following detailed description is only exemplary and explanatory, not
It can the limitation present invention.
Description of the drawings
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the present invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the process flow chart for the method for producing fine quality iron concentrate and iron concentrate in the present invention from iron concentrate containing high sulphur.
Specific implementation mode
It is described below and specific embodiments of the present invention is fully shown, to enable those skilled in the art to put into practice it
.
Embodiment 1
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, includes mainly 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, it is 40% to be concentrated into pulp density.
2, the activation of magnetic iron ore；
The ore pulp obtained using above-mentioned steps is as the raw material of flotation magnetic iron ore, the pH using aluminum sulfate as magnetic iron ore
Regulator and activator, pH regulators 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 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material:1.5:0.6
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；
The sand setting that above-mentioned steps obtain is scanned into 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
The iron ore concentrate of sulfur grade 0.18%, full Iron grade 68.40%, the rate of recovery 92.27%.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur；
6, magnetic iron ore is selected.
Using the rougher concentration that above-mentioned steps obtain and the raw material that scavenger concentrate is sorted as sulphur, using aluminum sulfate as magnetic Huang
The pH regulators and activator of iron ore, mass ratio 2.5:1.5:0.6 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat are made
For the collecting agent of magnetic iron ore, pH regulators and activator level 0.6kg/t, collector dosage 0.03kg/t, in natural ore pulp
7min is stirred under the conditions of temperature, natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats 1；In natural slurry temperature, certainly
Iron concentrate 1 is stirred 1-3min under conditions of being 0.02kg/t and carries out recleaning by right pH value, collector dosage, obtains iron concentrate
2 and chats 2；Triple cleaning is carried out under conditions of natural slurry temperature, natural ph, regime of agent blank, obtains grade
39.11%, the iron concentrate and chats 3 of the rate of recovery 68.59%；Chats 1 removes, chats 2 is in since sulfur content is low as tailing throwing
The merging of mine 3 is back to primary cleaning operation.
Embodiment 2
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, includes mainly 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, it is 38.5% to be concentrated into 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 mass ratio 1:3:2 sodium phosphates, fluorine silicon
PH regulator and activator of the mixture of sour ammonium and aluminum sulfate as magnetic iron ore, pH regulators 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 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material:1:0.8 amyl
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 temperature condition, 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
The iron ore concentrate of grade 0.30%, full Iron grade 68.60%, the rate of recovery 90.10%；
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur；
6, magnetic iron ore is selected.
Using the rougher concentration that above-mentioned steps obtain and the raw material that scavenger concentrate is sorted as sulphur, using aluminum sulfate as magnetic Huang
The pH regulators and activator of iron ore, mass ratio 3:1:0.8 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat are as magnetic
The collecting agent of pyrite, pH regulators and activator level 0.9kg/t, collector dosage 0.05kg/t, natural slurry temperature,
10min is stirred under the conditions of natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats 1；In natural slurry temperature, nature pH
Iron concentrate 1 is stirred 3min under conditions of being 0.02kg/t and carries out recleaning by value, collector dosage, obtains iron concentrate 2 in
Mine 2；Carry out triple cleaning under conditions of natural slurry temperature, natural ph, regime of agent blank, obtain grade 39.25%,
The iron concentrate and chats 3 of the rate of recovery 62.36%；Chats 1 is removed since sulfur content is low as tailing throwing, and chats 2 and chats 3 merge
It is back to primary cleaning operation.
Embodiment 3
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, includes mainly 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, it is 41.1% to be concentrated into 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 mass ratio 1:1 sodium phosphate and sulfuric acid
PH regulator and activator of the mixture of aluminium as magnetic iron ore, pH regulators 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 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material:2:0.5 amyl
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 temperature condition, 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%, the iron ore concentrate of full Iron grade 67.50%, the rate of recovery 94.12%.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur；
6, magnetic iron ore is selected.
Using the rougher concentration that above-mentioned steps obtain and the raw material that scavenger concentrate is sorted as sulphur, using aluminum sulfate as magnetic Huang
The pH regulators and activator of iron ore, mass ratio 2:2:0.5 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat are as magnetic
The collecting agent of pyrite, pH regulators and activator level 0.7kg/t, collector dosage 0.04kg/t, natural slurry temperature,
8min is stirred under the conditions of natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats 1；In natural slurry temperature, nature pH
Iron concentrate 1 is stirred 3min under conditions of being 0.015kg/t and carries out recleaning by value, collector dosage, obtains iron concentrate 2 in
Mine 2；Carry out triple cleaning under conditions of natural slurry temperature, natural ph, regime of agent blank, obtain grade 39.55%,
The iron concentrate and chats 3 of the rate of recovery 64.78%；Chats 1 is removed since sulfur content is low as tailing throwing, and chats 2 and chats 3 merge
It is back to primary cleaning operation.
Embodiment 4
A method of it removing magnetic iron ore from iron concentrate containing high sulphur, includes mainly 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, it is 38.8% to be concentrated into 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 mass ratio 2:1.5 ammonium fluosilicates and
PH regulator and activator of the mixture of aluminum sulfate as magnetic iron ore, pH regulators 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 is added as roughing flotation raw material in the raw material that above-mentioned steps are obtained in the raw material:2:0.8 amyl
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 temperature condition, 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
The iron ore concentrate of grade 0.23%, full Iron grade 67.60%, the rate of recovery 91.11%.
5, it is incorporated as rougher concentration and scavenger concentrate that above-mentioned steps obtain further to select the raw material of sulphur；
6, magnetic iron ore is selected.
Using the rougher concentration that above-mentioned steps obtain and the raw material that scavenger concentrate is sorted as sulphur, using aluminum sulfate as magnetic Huang
The pH regulators and activator of iron ore, mass ratio 3:2:0.8 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat are as magnetic
The collecting agent of pyrite, pH regulators and activator level 0.95kg/t, collector dosage 0.07kg/t, in natural ore pulp temperature
9min is stirred under the conditions of degree, natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats 1；In natural slurry temperature, nature
Iron concentrate 1 is stirred 3min under conditions of being 0.02kg/t and carries out recleaning by pH value, collector dosage, obtains 2 He of iron concentrate
Chats 2；Triple cleaning is carried out under conditions of natural slurry temperature, natural ph, regime of agent blank, obtains grade
38.71%, the iron concentrate and chats 3 of the rate of recovery 63.52%；Chats 1 removes, chats 2 is in since sulfur content is low as tailing throwing
The merging of mine 3 is back to primary cleaning operation.
It should be understood that the invention is not limited in the flow 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 (4)
1. a kind of method producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur, which is characterized in that using efficient living
Agent and pH regulators, make magnetic iron ore mineral surfaces be activated, and control the state-of-charge of the mineral surfaces in ore pulp；
Using the combined capturing and collecting agent with preferable selectivity and collecting performance, the magnetic iron ore different to degree of oxidation collecting simultaneously obtains
Fine quality iron concentrate；The magnetic iron ore removed to throwing using efficient collecting agent and regulator pharmaceutical agent combinations is recycled, and is obtained
Grade A iron concentrate：
1) activation of magnetic iron ore：Using efficient activator and pH regulators, steps are as follows for activation magnetic iron ore mineral surfaces：
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 into mine
Slurry mass concentration is 35-45%；Then pH regulator and activator of the aluminum sulfate as magnetic iron ore, pH regulators and work are used
Agent dosage is 1.5-4.5kg/t, and 3-8min, adjustment pH value 4.5-5.5 are stirred under natural temperature；
2) collecting of magnetic iron ore：Using the combined capturing and collecting agent with preferable selectivity and collecting performance, magnetic iron ore step is removed
It is as follows：
A. magnetic iron ore roughing；
Mass ratio 3-2 is added as roughing flotation raw material in ore pulp after the activation that above-mentioned steps are obtained in the raw material:2-1:
The collecting agent of 1-0.5 amylic sodium xanthogenates, sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, in collector dosage 0.2-
1-5min is stirred under 0.8kg/t, natural temperature, roughing is carried out and sorts magnetic iron ore, obtains magnetic iron ore rougher concentration and iron essence
Mine sand setting；
B. the raw material that iron ore concentrate sand setting is scanned as magnetic iron ore；
C. magnetic iron ore is scanned；
Raw material is scanned using iron ore concentrate sand setting as flotation, with mass ratio 3-2:2-1:1-0.5 amylic sodium xanthogenate, ethoxy-dithioformic acid
The collecting agent of sodium and fourth Sodium Aerofloat as magnetic iron ore, collector dosage 0.05-0.15kg/t stir 1- under natural temperature
Then 3min is scanned under natural ph, obtain scavenger concentrate and iron ore concentrate；
D. iron ore concentrate is I classes of C67 or II class standard；
E. magnetic iron ore rougher concentration and scavenger concentrate are incorporated as further selecting the raw material of sulphur；
3) magnetic iron ore is selected；The rougher concentration and scavenger concentrate that above-mentioned steps are obtained are as selected raw material, using efficient
Pharmaceutical agent combinations, steps are as follows for flotation of sulfur concentrate：
A. primary cleaning；
PH regulators and activator using aluminum sulfate as magnetic iron ore, mass ratio 3-2:2-1:1-0.5 amylic sodium xanthogenates,
The collecting agent of sodium ethylxanthate and fourth Sodium Aerofloat as magnetic iron ore, pH regulators and activator level 0.5-1.0kg/t, catch
Agent dosage 0.03-0.10kg/t is received, 4-10min is stirred under the conditions of natural slurry temperature, natural ph, carries out primary cleaning,
Obtain iron concentrate 1 and chats 1；
B. recleaning；
Iron concentrate 1 is stirred into 1- under conditions of natural slurry temperature, natural ph, collector dosage are 0.01-0.02kg/t
3min carries out recleaning, obtains iron concentrate 2 and chats 2；
C. triple cleaning；
Carry out triple cleaning under conditions of natural slurry temperature, natural ph, regime of agent blank, obtain grade 38-40%,
The iron concentrate and chats 3 of rate of recovery 60-70%；Chats 1 is removed since sulfur content is low as tailing throwing, and chats 2 and chats 3 merge
It is back to primary cleaning operation.
2. the method for producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur according to claim 1, which is characterized in that
Using mass ratio 1-2:3-1:The mixture of 2-1 sodium phosphates, ammonium fluosilicate and aluminum sulfate as magnetic iron ore pH regulators and
Activator.
3. the method for producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur according to claim 1, which is characterized in that
Using mass ratio 3-1:PH regulator and activator of the mixture of 1-2 aluminum sulfate and ammonium fluosilicate as magnetic iron ore.
4. the method for producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur according to claim 1, which is characterized in that
Using mass ratio 1-2:PH regulator and activator of the mixture of 3-2 aluminum sulfate and sodium phosphate as magnetic iron ore.
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