CN108355841B - The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur - Google Patents
The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur Download PDFInfo
- Publication number
- CN108355841B CN108355841B CN201810147484.0A CN201810147484A CN108355841B CN 108355841 B CN108355841 B CN 108355841B CN 201810147484 A CN201810147484 A CN 201810147484A CN 108355841 B CN108355841 B CN 108355841B
- Authority
- CN
- China
- Prior art keywords
- concentrate
- iron ore
- ore
- magnetic iron
- natural
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 408
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 204
- 239000012141 concentrate Substances 0.000 title claims abstract description 114
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 239000005864 Sulphur Substances 0.000 title claims abstract description 44
- 238000000034 method Methods 0.000 title abstract description 17
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 31
- 239000012190 activator Substances 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 16
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 238000000227 grinding Methods 0.000 claims abstract description 9
- 229910000162 sodium phosphate Inorganic materials 0.000 claims abstract description 6
- 239000001488 sodium phosphate Substances 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 50
- RZFBEFUNINJXRQ-UHFFFAOYSA-M sodium ethyl xanthate Chemical compound [Na+].CCOC([S-])=S RZFBEFUNINJXRQ-UHFFFAOYSA-M 0.000 claims description 33
- 238000004140 cleaning Methods 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
- 239000002516 radical scavenger Substances 0.000 claims description 17
- 239000004576 sand Substances 0.000 claims description 17
- 239000002002 slurry Substances 0.000 claims description 16
- 230000004913 activation Effects 0.000 claims description 6
- 238000003801 milling Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 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 5
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 4
- 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 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000011734 sodium Substances 0.000 claims description 3
- 229910052708 sodium Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 239000000463 material Substances 0.000 claims description 2
- 238000011084 recovery Methods 0.000 abstract description 25
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 8
- 239000011707 mineral Substances 0.000 abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 5
- 239000008177 pharmaceutical agent Substances 0.000 abstract description 4
- 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
- 229910052717 sulfur Inorganic materials 0.000 description 28
- 239000011593 sulfur Substances 0.000 description 28
- 230000003647 oxidation Effects 0.000 description 7
- 238000007254 oxidation reaction Methods 0.000 description 7
- 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
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 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
- 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
- 238000005516 engineering process Methods 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
- 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, be difficult for the sulphur in iron ore concentrate to 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 technique
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 atmosphere during the sintering process, but also in order to guarantee 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 will affect magnetic iron ore oxidation to degree, the presence of microelement 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 magnetic iron ore deeper to iron concentrate containing high sulphur, especially degree of oxidation sorts effect
Fruit is bad, be difficult for the sulphur in iron ore concentrate to be down to 0.3% hereinafter, and iron ore concentrate rate of recovery loss it is larger, lower than 88% with
Under.
Summary of the invention
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 guaranteeing 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 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 70-80%, 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 1.5-3.5kg/t, 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, natural temperature, roughing is carried out and sorts magnetic iron ore, obtains sulfur grade 17-25%, recycling
Sand setting (iron ore concentrate) of the magnetic iron ore rougher concentration and sulfur grade of rate 80-86% less than 0.55%, sand setting are 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 the conditions of temperature, then scanned under natural ph, obtain sulfur grade 8-15%, rate of recovery 6-11%
Scavenger concentrate and sulfur grade 0.1-0.3%, full Iron grade 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；
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 regulator and activator of iron ore, mass ratio 3-2:2-1:1-0.5 amylic sodium xanthogenate, sodium ethylxanthate and fourth Sodium Aerofloat
As the collecting agent of magnetic iron ore, pH regulator 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 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 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 using a kind of method for producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur, i.e., using efficient
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 guaranteeing 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 be only it is exemplary and explanatory, not
It can the limitation present invention.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows and meets implementation of the invention
Example, and be used to explain the principle of the present invention together with specification.
Fig. 1 is the process flow chart for producing the method for fine quality iron concentrate and iron concentrate 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 pulp density 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；
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 regulator 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 regulator 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, 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；
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 regulator 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 regulator 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, 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；
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 regulator 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 regulator 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, 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；
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 regulator 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 regulator 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 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 producing fine quality iron concentrate and iron concentrate from iron concentrate containing high sulphur, which is characterized in that including following
Part:
(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, in collector dosage
5min is stirred under the conditions of 0.30kg/t, natural temperature, obtains magnetic iron ore rougher concentration and 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, and scavenger concentrate and iron ore concentrate are obtained；
(5) it is incorporated as the scavenger concentrate that rougher concentration and step (4) that step (3) obtain obtain further to select the original of sulphur
Material；PH regulator and activator using aluminum sulfate as magnetic iron ore, mass ratio 2:2:0.5 amylic sodium xanthogenate, ethyl are yellow
The collecting agent of ortho acid sodium and fourth Sodium Aerofloat as magnetic iron ore, pH regulator and activator level 0.7kg/t, collector dosage
0.04kg/t stirs 8min under the conditions of natural slurry temperature, natural ph, carries out primary cleaning, obtains iron concentrate 1 and chats
1；Iron concentrate 1 3min is stirred under conditions of natural slurry temperature, natural ph, collector dosage are 0.015kg/t to carry out
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 iron concentrate and chats 3；Chats 1 is removed as tailing throwing, and chats 2 and the merging of chats 3 are back to primary cleaning work
Industry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147484.0A CN108355841B (en) | 2018-02-12 | 2018-02-12 | The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810147484.0A CN108355841B (en) | 2018-02-12 | 2018-02-12 | The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108355841A CN108355841A (en) | 2018-08-03 |
| CN108355841B true CN108355841B (en) | 2019-09-10 |
Family
ID=63002308
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810147484.0A Active CN108355841B (en) | 2018-02-12 | 2018-02-12 | The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108355841B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110064508B (en) * | 2019-04-12 | 2021-12-07 | 东北大学 | Method for controlling oxidation-flotation recovery of pyrite |
| CN109954591B (en) * | 2019-04-23 | 2021-02-26 | 中南大学 | Flotation method for reducing sulfur content in magnetic separation iron ore concentrate |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU2014260247B2 (en) * | 2013-04-30 | 2017-08-03 | Newmont Usa Limited | Method for processing mineral material containing acid-consuming carbonate and precious metal in sulfide minerals |
| CN103316775B (en) * | 2013-05-21 | 2014-09-03 | 内蒙古科技大学 | High-sulfur magnetite concentrate efficient activated flotation desulfuration method |
| CN104069937A (en) * | 2014-05-16 | 2014-10-01 | 马钢集团设计研究院有限责任公司 | Ore dressing method for removing pyrrhotite from iron ore |
| CN106076647B (en) * | 2016-06-20 | 2019-11-26 | 武汉理工大学 | Utilize the method for magnetic iron ore in combination medicament activation and flotation iron ore concentrate |
-
2018
- 2018-02-12 CN CN201810147484.0A patent/CN108355841B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN108355841A (en) | 2018-08-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108097453B (en) | The method of magnetic iron ore is removed from iron concentrate containing high sulphur | |
| CN108097452B (en) | The ore-dressing technique of fine quality iron concentrate is produced from iron ore | |
| CN103706485B (en) | A kind of beneficiation method of high carbon acid calcium type fluorite ore | |
| CN101549322B (en) | Process of using sulphur lead-zinc containing tailings to prepare sulphur iron ore concentrate | |
| CN104084315A (en) | Beneficiation method for separating fluorite and tungsten through flotation | |
| CN109821661A (en) | A kind of low alkali of high sulfur-lead-zinc ore is without sulfuric acid floatation process | |
| CN105289834B (en) | The zinc sulphur separation beneficiation method of zinc sulphide ore rich in magnetic iron ore | |
| CN108355841B (en) | The method of fine quality iron concentrate and iron concentrate is produced from iron concentrate containing high sulphur | |
| CN108580023B (en) | Multi-component recycling and beneficiation method for iron tailings associated with rare earth minerals | |
| CN106179762B (en) | A kind of beneficiation method of low-grade shale zinc oxide ore | |
| CN103433149A (en) | Polymetallic sulphide ore flotation process capable of increasing zinc index | |
| CN107899740A (en) | A kind of high arsenic-bearing pyrite concentrate pozzuolite separation ore-sorting technique containing magnetic iron ore | |
| CN102489409A (en) | Method for adjusting pH value of ore pulp in flotation process of zinc oxide ore | |
| CN110237938B (en) | Flotation reagent and flotation separation method of molybdenum, bismuth and sulfur polymetallic sulfide ore | |
| CN106622634A (en) | Beneficiation method for copper-cobalt ore | |
| CN113976307A (en) | Flotation separation method of refractory lead-zinc sulfide ore and zinc blende inhibitor thereof | |
| CN102225371A (en) | Method for flotation of scheelite | |
| CN108672101A (en) | A kind of method of sulphur active flotation in copper sulfide sulphur mine nominal group process | |
| CN110170381A (en) | A kind of beneficiation method recycling cassiterite from tin copper mineral intergrowth | |
| LU505722B1 (en) | Flotation reagent and flotation method for marmatite and jamesonite | |
| CN109939834A (en) | Composite collector and its application in extremely low-grade ore floatation containing rubidium | |
| CN110882828A (en) | Beneficiation method for recovering niobium mineral from carbonic acid type pyrochlore | |
| CN112604817A (en) | Recycling and ore dressing process for tailings containing high-silicon gangue and high-calcium associated fluorite | |
| CN105344495A (en) | Method for recycling zinc oxide from zinc sulfide flotation tailings | |
| CN110773322A (en) | Positive and negative flotation process for quartz-calcite type fluorite ore |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 014010 third floor, office building, Baotou Steel Plant, friendship Street, Kun Du Lun, Baotou, the Inner Mongolia Autonomous Region Patentee after: Inner Mongolia Honghe Technology Development Co., Ltd Address before: 014010 third floor, office building, Baotou Steel Plant, friendship Street, Kun Du Lun, Baotou, the Inner Mongolia Autonomous Region Patentee before: BAOTOU HUILINXINBAO MINING INDUSTRY Co.,Ltd. |