CN108525846A - A kind of method and system of the low-grade Fine Fraction Ilmenite of recycling - Google Patents
A kind of method and system of the low-grade Fine Fraction Ilmenite of recycling Download PDFInfo
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- CN108525846A CN108525846A CN201810688231.4A CN201810688231A CN108525846A CN 108525846 A CN108525846 A CN 108525846A CN 201810688231 A CN201810688231 A CN 201810688231A CN 108525846 A CN108525846 A CN 108525846A
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- ilmenite
- tailing
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- separator
- fine fraction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B9/00—General arrangement of separating plant, e.g. flow sheets
Abstract
The present invention provides a kind of systems of the low-grade Fine Fraction Ilmenite of recycling, including：Weak magnetic separator；The intensity magnetic separator of import and weak magnetic separator tailing outlet connection；The centrifugal ore separator of import and intensity magnetic separator ilmenite concentrate outlet connection；The shaking table of import and centrifugal ore separator ilmenite concentrate outlet connection.The system of the low-grade Fine Fraction Ilmenite of recycling provided by the invention carries out strong magnetic ore separation, centrifugal reselection ore dressing and tabling successively, low-grade Fine Fraction Ilmenite is recycled especially by using centrifugal ore separator and shaking table, simplify the technological process in removal process, production cost is low and the rate of recovery of metal is higher, and in addition environmental pollution is few.The present invention also provides a kind of methods of the low-grade Fine Fraction Ilmenite of recycling.
Description
Technical field
The present invention relates to recycling ilmenite technical field more particularly to a kind of methods of the low-grade Fine Fraction Ilmenite of recycling
And system.
Background technology
In the prior art, to the recycling generally use of ilmenite " strong magnetic (high gradient)+flotation " or " gravity treatment (multiple gravity treatment)
The technological processes such as+dry high-magnetic separation ".Stability or raising titanium fine work mine grade of the flotation to technique in " strong magnetic+flotation " flow
Play the role of with the rate of recovery it is critical, especially to the recycling of Fine Fraction Ilmenite (note：- 0.045mm grain size contents exist
80% or more mineral grain is known as fine fraction).But the major defect of floatation process is technological process complexity, it is all kinds of floating
Select medicament requirement harsh, operation difficulty is larger, and production cost is higher, has certain pollution, especially flotation to environment
The peculiar smell that medicament generates in flotation and drying operation is affected to nearby residents physical and mental health, and is difficult thoroughly to control
Reason.
And in " gravity treatment+dry high-magnetic separation " technique, gravitational separation equipment spiral chute to the recovering effect of Fine Fraction Ilmenite compared with
Difference is unfavorable for the raising of the rate of recovery；Dry type strong magnetic separator needs to dry sorting raw material, and energy consumption is higher, and production process
Middle generation a large amount of dust easily causes pollution to surrounding enviroment, higher to the construction requirements of environmental protection equipment, while both equipment
Less (the note for the treatment of capacity：Treating capacity is in 3~5 ton hours), it is more to build equipment number of units needed for same production-scale production line,
Floor space is larger.
Therefore, obtain that a kind of technological process is simple and the recycling side of the high low-grade Fine Fraction Ilmenite of metal recovery rate
Method becomes those skilled in the art's urgent problem to be solved.
Invention content
In view of this, the purpose of the present invention is to provide a kind of method and system of the low-grade Fine Fraction Ilmenite of recycling,
The metal recovery rate that method provided by the invention recycles low-grade Fine Fraction Ilmenite is higher and technological process is simple.
The present invention provides a kind of systems of the low-grade Fine Fraction Ilmenite of recycling, including：
Weak magnetic separator；
The intensity magnetic separator of import and weak magnetic separator tailing outlet connection；
The centrifugal ore separator of import and intensity magnetic separator ilmenite concentrate outlet connection；
The shaking table of import and centrifugal ore separator ilmenite concentrate outlet connection.
In the present invention, the system of the low-grade Fine Fraction Ilmenite of recycling further includes screening plant；The screening is set
Standby outlet is connect with the import of the weak magnetic separator.In the present invention, the screening plant is used for the low-grade particulate
Grade ilmenite carries out classification processing, and the screening plant is preferably sieve, the aperture of the sieve preferably≤0.08mm, more preferably
≤ 0.078mm, more preferably≤0.076mm, most preferably≤0.074mm；The undersized product of gained is entered weak magnetic separator by the present invention
It carries out removing iron.
In the present invention, the weak magnetic separator be used for low-grade Fine Fraction Ilmenite carry out remove iron, obtain iron ore concentrate and
Tailing.In the present invention, the weak magnetic separator is preferably flux-weakening control.
In the present invention, the system of the low-grade Fine Fraction Ilmenite of recycling preferably further includes sorting equipment, the choosing
The entrance of other equipment and the tailing outlet of the weak magnetic separator connect, ilmenite concentrate outlet and the high intensity magnetic separation of the selecting device
The entrance of machine connects.In the present invention, the sorting equipment preferably includes：
The roughing device of import and weak magnetic separator tailing outlet connection；
The selecting device of import and the roughing device ilmenite concentrate outlet connection, the ilmenite concentrate outlet of the selecting device with
The import of intensity magnetic separator connects；
Import scans device with the first of roughing device tailing outlet and selecting device tailing outlet connection respectively；
Import scans the second of device tailing outlet connection with described first and scans device.
In the present invention, the sorting equipment obtains TiO for being sorted2The higher ilmenite concentrate of grade and can not profit
Sort rear tailing.In the present invention, the sorting equipment is preferably laboratory Australia Φ 600mm spiral chute.The present invention
It middle setting roughing device, selecting device and scans device and one roughing, primary cleaning and scan twice, can make after sorting
There is higher TiO in obtained ilmenite concentrate2Grade, the tailing after sorting have lower TiO2Grade.
In the present invention, the described first ilmenite concentrate outlet for scanning device is connected with the import of the roughing device, realizes
First scan after ore dressing recycle.In the present invention, the described second ilmenite concentrate for scanning device exports and described first
The import for scanning device is connected, and the ore dressing after realization second is scanned recycles.
In the present invention, the intensity magnetic separator is used for high intensity magnetic separation titanium, obtains ilmenite concentrate；The intensity magnetic separator is preferably high ladder
Spend intensity magnetic separator, more preferably vertical ring high-gradient intensity magnetic separator.
In the present invention, the centrifugal ore separator obtains ilmenite concentrate for selecting titanium.In the present invention, the centrifugal separation
Machine refers to the equipment for carrying out gravity treatment to mine particle group in centrifugal force field, is a kind of efficient gravitational separation equipment.In the present invention, institute
It can may be vertical centrifugal ore selector for horizontal centrifugal ore separators to state centrifugal ore separator, preferably vertical centrifugal ore selector.
In the present invention, the centrifugal ore separator rotary drum enrichment cone diameter is preferably 7~8 inches, more preferably 7.2~7.8 inches, more
Preferably 7.4~7.6 inches, most preferably 7.5 inches；Enrichment cone centripetal force is preferably 60~75G, more preferably 65~70G；
Feed preparation unit size preferably≤0.08mm, more preferably≤0.078mm, more preferably≤0.076mm, most preferably≤0.074mm；Feed ore concentration
Preferably 8~11%, more preferably 9~10%；It is preferably 170~185s to the mine time, more preferably 175~180s；Recoil
Water is preferably 3-6L/min, more preferably 4~5L/min.It can be more using the centrifugal ore separator of the above-mentioned rotary drum parameter of the present invention
Good recovery Pd improves the grade and yield of the ilmenite concentrate that present invention recycling obtains.
In the present invention, the tailing outlet of the centrifugal ore separator is connect with the entrance of centrifugal ore separator, to be embodied as tail
Mine recycles, and improves the yield of present invention recycling ilmenite concentrate.
In the present invention, the shaking table obtains ilmenite concentrate for selecting titanium.In the present invention, the shaking table is preferably cloud tin
Formula shaking table.In the present invention, the cloud tin formula shaking table is preferably sludge bed surface；The sludge bed surface preferably uses cutting bed surface.
In the present invention, the shaking table feed preparation unit size preferably≤0.08mm, more preferably≤0.074mm, more preferably
0.074~0.037mm, more preferably 0.060~0.040mm, most preferably 0.055~0.045mm；The stroke of the shaking table
(or stroke) is preferably 8~11mm, more preferably 9~10mm；The frequency of the shaking table is preferably 48~53F, and more preferably 49
~52F, most preferably 50~51F；The lateral slope surface of the shaking table be 1~2 degree, more preferably 1.2~1.8 degree, more preferably
1.4~1.6 degree, most preferably 1.5 degree.The present invention can preferably recycle ilmenite concentrate using the shaking table of above-mentioned parameter,
Improve the grade and yield of present invention recycling ilmenite concentrate.
The method of the low-grade Fine Fraction Ilmenite of recycling provided by the invention is a kind of low cost, cleaning, efficient novel
The dressing method of ilmenite, includes the following steps：
1) low-grade Fine Fraction Ilmenite is carried out removing iron, obtains iron ore concentrate and tailing；
2) tailing is subjected to high intensity magnetic separation, obtains ilmenite concentrate and tailing；
3) ilmenite concentrate progress centrifugal reselection is selected, obtain ilmenite concentrate and tailing；
4) ilmenite concentrate is subjected to table concentration, obtains ilmenite concentrate and tailing.
In the present invention, the TiO of the low-grade Fine Fraction Ilmenite2Grade is preferably 6~7%, more preferably 6.2~
6.8%, most preferably 6.3~6.7%.In the present invention, the granularity of the low-grade Fine Fraction Ilmenite preferably-
0.045mm hereinafter, in the low-grade Fine Fraction Ilmenite granularity -0.045mm with the mass content of blanking grain preferably >=
80%.
The present invention does not have special limitation to the source of the low-grade Fine Fraction Ilmenite, using those skilled in the art
Well known TiO after selecting iron2Tailings Slurry of the grade 6~7%, more preferably 6.2~6.8%, more preferably 6.3~
6.7%, most preferably 6.3%.
In the present invention, the low-grade Fine Fraction Ilmenite is carried out preferably being carried out classification processing before except iron.
In the present invention, classification processing is preferably sieved using sieve, and the aperture of the sieve is preferred≤0.08mm, more preferably
≤ 0.078mm, more preferably≤0.076mm, most preferably≤0.074mm.
In the present invention, the method except iron is preferably weak magnetic blanking iron, after the present invention preferably sieves above-mentioned sieve
Undersized product carry out weak magnetic blanking iron, the field strength of the low intensity magnetic separation is preferably 0.1~0.3T, more preferably 0.15~0.25T,
Most preferably 0.2T.
In the present invention, the high intensity magnetic separation is preferably High gradient high intensity magnetic separation, and the field strength of the high intensity magnetic separation is preferably 0.6~
0.8T, more preferably 0.65~0.75T, most preferably 0.7T.
In the present invention, the selected method of the centrifugal reselection is preferably centrifugal ore separator gravity treatment.In the present invention, described
Rotary drum enrichment cone centripetal force is preferably 60~75G in centrifugal reselection refining process, more preferably 65~70G；Feed preparation unit size is preferred
≤ 0.08mm, more preferably≤0.078mm, more preferably≤0.076mm, most preferably≤0.074mm；Feed ore concentration is preferably 8~
11%, more preferably 9~10%；It is preferably 170~185s to the mine time, more preferably 175~180s, most preferably 176~
178s；The water that recoils is preferably 3~6L/min, more preferably 4~5L/min.The present invention is adopted for low-grade Fine Fraction Ilmenite
With the centrifugal reselection dressing process of above-mentioned special process parameter, it can make the ilmenite concentrate that recycling obtains that there are higher grade and receipts
Rate.
In the present invention, TiO in the ilmenite concentrate obtained after the centrifugal reselection is selected2Mass content be preferably 30~
40%, more preferably 32~38%, most preferably 34~36%.
In the present invention, the tailing after preferably will be selected after the centrifugal reselection is selected again returns to flow and carries out centrifugation weight
It selects selected, to recycle tailing, improves the yield of ilmenite concentrate.In the present invention, tailings grade after the centrifugal reselection is selected
TiO2Mass content be preferably 3~4%, more preferably 3.2~3.8%, most preferably 3.4~3.6%.
In the present invention, the table concentration is preferably carried out using cloud tin formula shaking table selected.In the present invention, described to shake
Feed ore concentration is preferably 20~25% in bed refining process, more preferably 21~24%, most preferably 22~23%；Cross fall
Preferably 1~2 degree, more preferably 1.5~2 degree, most preferably 1.5 degree；Head fall is preferably 0.9~0.94%, more preferably
It is 0.91~0.93%, most preferably 0.92%.The present invention is joined for low-grade Fine Fraction Ilmenite using above-mentioned special process
Several shaking table progress is selected, and the ilmenite concentrate that recycling obtains can be made to have higher grade and yield.
In the present invention, TiO is preferably obtained after the table concentration2Ilmenite concentrate of the grade 40~50%, more preferably
42~48%, most preferably 42~46%.
In the present invention, tailings grade TiO after the table concentration2Mass content is preferably 3~4%, and more preferably 3.2
~3.8%, most preferably 3.4~3.6%.
The process flow chart of the method for the low-grade Fine Fraction Ilmenite of recycling provided in an embodiment of the present invention as shown in Figure 1,
Including：
To mine；
To carrying out weak magnetic blanking iron to mine；
Iron ore concentrate and tailing are obtained after weak magnetic blanking iron；
The tailing is subjected to High gradient high intensity magnetic separation, obtains ilmenite concentrate and tailing；
Ilmenite concentrate progress centrifuge gravity treatment is selected, obtain ilmenite concentrate and tailing；
It is selected that tailing return is repeated into centrifugal reselection；
The ilmenite concentrate is subjected to table concentration, obtains ilmenite concentrate and tailing.
The ore-dressing technique that the present invention is combined using " strong magnetic+centrifugal reselection+gravity treatment ", can be from low-grade fine fraction ferrotianium
The ilmenite concentrate that grade is 46% or more is directly obtained in mine." strong magnetic+flotation " or " gravity treatment (the repeatedly weight used with the prior art
Choosing)+dry high-magnetic separation " technique compare, recovery method technological process provided by the invention is simple, and production cost is low, to environment
Pollution is few, and the rate of recovery of metal is high, has extensive application value.Recovery method technological process provided by the invention is simple
Reliably, floating agent is not used, raw material need not be dried, clean environment firendly, cost can reduce by 50% or so.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 is the process flow chart of the low-grade Fine Fraction Ilmenite method of recycling provided in an embodiment of the present invention.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Embodiment 1
It will select after iron and contain TiO2Tailings Slurry (low-grade Fine Fraction Ilmenite) of the grade 6.3% or so, with aperture be-
The sieve of 0.074mm carries out classification processing；
The flux-weakening control that undersized product is 0.2T with field strength carries out disposably removing iron；
Except the tailing after iron uses field strength to be sorted for the vertical ring high-gradient intensity magnetic separator of 0.7T；
Carry out selected, the technique ginseng during the centrifugal reselection after the high intensity magnetic separation ilmenite concentrate of acquisition with centrifugal ore separator again
Number is：Enrichment cone centripetal force about 60G；Feed preparation unit size is -0.074mm；Feed ore concentration is 10%, is 180s to the mine time；Recoil
Water 5L/min obtains containing TiO236% or so ilmenite concentrate；
The ilmenite concentrate is used again cloud tin formula shaking table carry out selected, the technological parameter during the table concentration is：
Feed preparation unit size -0.074mm, feed ore concentration 21.5%, shaking table stroke (or stroke) be 9mm, frequency 50F；Bed surface cross fall
Degree is 1.5 degree, finally obtains TiO2Grade reaches 46% or so ilmenite concentrate product；
The tailing Returning process that centrifuge gravity treatment generates carries out centrifugal reselection again, finally by tailings grade TiO2Content control
System is 3.5% or so.
The grade that the recovery method that the embodiment of the present invention 1 provides obtains ilmenite concentrate is 46%, TiO in tailing2Mass content
It is 3.5%, the yield for recycling ilmenite concentrate is 43.1%.
Embodiment 2
It will select after iron and contain TiO2Tailings Slurry (low-grade Fine Fraction Ilmenite) of the grade 6.3% or so, with aperture be-
The sieve of 0.074mm carries out classification processing；
The flux-weakening control that undersized product is 0.15T with field strength carries out disposably removing iron；
Except the tailing after iron uses field strength to be sorted for the vertical ring high-gradient intensity magnetic separator of 0.65T；
Carry out selected, the selected technological parameter of the centrifugal reselection after the high intensity magnetic separation ilmenite concentrate of acquisition with centrifugal ore separator again
For：Enrichment cone centripetal force about 65G；Feed preparation unit size is -0.074mm；Feed ore concentration 10.5% gives mine time 185s；Recoil water
6L/min obtains containing TiO235% or so ilmenite concentrate；
Cloud tin formula shaking table is used to carry out selected, the technological parameter of the table concentration again the ilmenite concentrate：Feed preparation unit size-
0.074mm, feed ore concentration 20%, shaking table stroke (or stroke) be 8mm, frequency 49F；Bed surface cross fall is 1.0 degree, most
TiO is obtained eventually2Grade reaches 45% or so ilmenite concentrate product；
The tailing Returning process that centrifuge gravity treatment generates carries out centrifugal reselection again, finally by tailings grade TiO2Content control
System is 3.4% or so.
The grade that the recovery method that the embodiment of the present invention 2 provides obtains ilmenite concentrate is 45%, TiO in tailing2Mass content
It is 3.4%, the yield for recycling ilmenite concentrate is 44.8%.
Embodiment 3
It will select after iron and contain TiO2Tailings Slurry (low-grade Fine Fraction Ilmenite) of the grade 6.3% or so, with aperture be-
The sieve of 0.074mm carries out classification processing；
The flux-weakening control that undersized product is 0.25T with field strength carries out disposably removing iron；
Except the tailing after iron uses field strength to be sorted for the vertical ring high-gradient intensity magnetic separator of 0.75T；
Carry out selected, the selected technological parameter of the centrifugal reselection after the high intensity magnetic separation ilmenite concentrate of acquisition with centrifugal ore separator again
For：Enrichment cone centripetal force about 60G；Feed preparation unit size is -0.074mm；Feed ore concentration 11% gives mine time 175s；The water that recoils 4L/
Min obtains containing TiO237% or so ilmenite concentrate；
Cloud tin formula shaking table is used to carry out selected, the technological parameter of the table concentration again the ilmenite concentrate：Feed preparation unit size-
0.074mm, feed ore concentration 23%, shaking table stroke (or stroke) be 11mm, frequency 51F；Bed surface cross fall is 2.0 degree,
It is final to obtain TiO2Grade reaches 47% or so ilmenite concentrate product；
The tailing Returning process that centrifuge gravity treatment generates carries out centrifugal reselection again, finally by tailings grade TiO2Content control
System is 3.6% or so.
The grade that the recovery method that the embodiment of the present invention 3 provides obtains ilmenite concentrate is 47%, TiO in tailing2Mass content
It is 3.6%, the yield for recycling ilmenite concentrate is 41.2%.
Comparative example 1
Undersized product is obtained according to method described in embodiment 1；
The undersized product is sorted using the method for strong magnetic+flotation, main technique is：Weak magnetic removes iron, every thick, strong
Magnetic separation titanium, grind grading, two sections of high intensity magnetic separations, one thick three single-minded sweep flotation, ilmenite concentrate.
Comparative example 1 of the present invention obtains TiO2The ilmenite concentrate that grade is 44%, the rate of recovery 35%, total tailing TiO2Grade
It is 5%.Moreover, addition sulfuric acid, xanthate, 2# oil, MOH is needed to catch in the recovery method floatation process that comparative example 1 of the present invention provides
The medicaments such as agent are received, and also need to that alkali is added to be neutralized in tailing, technique is more complex, and production cost is high, and pharmaceutical use is big, right
Environment has a certain impact.
Comparative example 2
Undersized product is obtained according to method described in embodiment 1；
The undersized product is carried out selecting iron 2 times using 1500GS flux-weakening controls, iron ore concentrate is obtained and selects iron tail
Mine, TiO in iron selection tailings2Grade be 8.2%；
Iron selection tailings are sorted using laboratory Australia Φ 600mm spiral chute, specially：It is one roughing, primary
It is selected and scan twice, after roughing, obtain after roughing tailing after ore dressing and roughing, after roughing ore dressing carry out selected, roughing rear molding
Mine carries out first and scans；After selected, obtain titanium chats and it is selected after tailing, TiO in titanium chats2Grade is 40% progress high intensity magnetic separation
Titanium, it is selected after tailing first scan, first scan after obtain first and scan tailing and first scanning rear ore dressing, first scans
Tailing second scan afterwards, second scan after obtain second and scan tailing and second scanning rear ore dressing, second scans in tailing
TiO2Grade is 3.7%.
High intensity magnetic separation titanium is carried out to titanium chats using the strong magnetomechanical of 6000GS horizontal disk high gradients, obtains ilmenite concentrate and strong magnetic ore separation tail
Mine, TiO in ilmenite concentrate2Grade be 45%, the rate of recovery 40%.
As seen from the above embodiment, the present invention provides a kind of systems of the low-grade Fine Fraction Ilmenite of recycling, including：It is weak
Magnetic separator；The intensity magnetic separator of import and weak magnetic separator tailing outlet connection；Import is exported with the intensity magnetic separator ilmenite concentrate
The centrifugal ore separator of connection；The shaking table of import and centrifugal ore separator ilmenite concentrate outlet connection.Recycling provided by the invention is low
The system of grade Fine Fraction Ilmenite carries out strong magnetic ore separation, centrifugal reselection ore dressing and tabling successively, especially by adopting
It carries out recycling low-grade Fine Fraction Ilmenite with centrifugal ore separator and shaking table, simplifies the technological process in removal process, produce
At low cost and metal the rate of recovery is higher, and in addition environmental pollution is few.
Claims (10)
1. a kind of system of the low-grade Fine Fraction Ilmenite of recycling, including：
Weak magnetic separator；
The intensity magnetic separator of import and weak magnetic separator tailing outlet connection；
The centrifugal ore separator of import and intensity magnetic separator ilmenite concentrate outlet connection；
The shaking table of import and centrifugal ore separator ilmenite concentrate outlet connection.
2. system according to claim 1, which is characterized in that further include：
Export the screening plant being connect with the weak magnetic separator import.
3. system according to claim 1, which is characterized in that the tailing of the centrifugal ore separator exports and centrifugal ore separator
Entrance connection.
4. a kind of method of the low-grade Fine Fraction Ilmenite of recycling, includes the following steps：
1) low-grade Fine Fraction Ilmenite is carried out removing iron, obtains iron ore concentrate and tailing；
2) tailing is subjected to high intensity magnetic separation, obtains ilmenite concentrate and tailing；
3) ilmenite concentrate progress centrifugal reselection is selected, obtain ilmenite concentrate and tailing；
4) ilmenite concentrate is subjected to table concentration, obtains ilmenite concentrate and tailing.
5. according to the method described in claim 4, it is characterized in that, the method except iron is low intensity magnetic separation.
6. according to the method described in claim 5, it is characterized in that, the field strength of the low intensity magnetic separation is 0.1~0.3T.
7. according to the method described in claim 4, it is characterized in that, the high intensity magnetic separation is High gradient high intensity magnetic separation.
8. according to the method described in claim 4, it is characterized in that, the field strength of the high intensity magnetic separation is 0.6~0.8T.
9. according to the method described in claim 4, it is characterized in that, described except further including before iron：
The low-grade Fine Fraction Ilmenite is subjected to classification processing.
10. according to the method described in claim 4, it is characterized in that, the step 3) obtain tailing after further include：
It is selected that the tailing is returned into progress centrifugal reselection again.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109351454A (en) * | 2018-12-19 | 2019-02-19 | 攀枝花钢城集团米易瑞地矿业有限公司 | The method and system of titanium are selected from extreme poverty off-balancesheet iron tailings of low-grade vanadium titano |
| CN109604050A (en) * | 2018-12-03 | 2019-04-12 | 攀枝花学院 | Environment-friendly type iron selection tailings titanium separation method |
| CN110918250A (en) * | 2019-12-13 | 2020-03-27 | 会理县秀水河矿业有限公司 | Method for recovering titanium concentrate by using strong magnetic rough concentration and multi-section spiral chute gravity concentration |
| CN112121993A (en) * | 2020-06-30 | 2020-12-25 | 攀枝花青杠坪矿业有限公司 | Beneficiation process for titanium middling wet type concentration titanium concentrate |
| CN112718229A (en) * | 2020-11-20 | 2021-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Recovery method of micro-fine particle ilmenite |
| CN114226060A (en) * | 2021-12-14 | 2022-03-25 | 郑州中科新兴产业技术研究院 | Method for separating and recovering ilmenite, columbite and cassiterite |
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| CN109604050A (en) * | 2018-12-03 | 2019-04-12 | 攀枝花学院 | Environment-friendly type iron selection tailings titanium separation method |
| CN109351454A (en) * | 2018-12-19 | 2019-02-19 | 攀枝花钢城集团米易瑞地矿业有限公司 | The method and system of titanium are selected from extreme poverty off-balancesheet iron tailings of low-grade vanadium titano |
| CN110918250A (en) * | 2019-12-13 | 2020-03-27 | 会理县秀水河矿业有限公司 | Method for recovering titanium concentrate by using strong magnetic rough concentration and multi-section spiral chute gravity concentration |
| CN110918250B (en) * | 2019-12-13 | 2021-09-21 | 会理县秀水河矿业有限公司 | Method for recovering titanium concentrate by using strong magnetic rough concentration and multi-section spiral chute gravity concentration |
| CN112121993A (en) * | 2020-06-30 | 2020-12-25 | 攀枝花青杠坪矿业有限公司 | Beneficiation process for titanium middling wet type concentration titanium concentrate |
| CN112718229A (en) * | 2020-11-20 | 2021-04-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Recovery method of micro-fine particle ilmenite |
| CN114226060A (en) * | 2021-12-14 | 2022-03-25 | 郑州中科新兴产业技术研究院 | Method for separating and recovering ilmenite, columbite and cassiterite |
| CN114226060B (en) * | 2021-12-14 | 2024-01-26 | 郑州中科新兴产业技术研究院 | Method for separating and recovering ilmenite, niobium-iron ore and cassiterite |
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