CN106238202B - Copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology - Google Patents
Copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology Download PDFInfo
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- CN106238202B CN106238202B CN201610910271.XA CN201610910271A CN106238202B CN 106238202 B CN106238202 B CN 106238202B CN 201610910271 A CN201610910271 A CN 201610910271A CN 106238202 B CN106238202 B CN 106238202B
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- copper
- magnetic separation
- bismuth
- bulk concentrate
- concentrate
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- 239000012141 concentrate Substances 0.000 title claims abstract description 83
- 238000007885 magnetic separation Methods 0.000 title claims abstract description 62
- QAAXRTPGRLVPFH-UHFFFAOYSA-N [Bi].[Cu] Chemical compound [Bi].[Cu] QAAXRTPGRLVPFH-UHFFFAOYSA-N 0.000 title claims abstract description 61
- 238000005516 engineering process Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 119
- 239000010949 copper Substances 0.000 claims abstract description 119
- 229910052802 copper Inorganic materials 0.000 claims abstract description 119
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 27
- 239000011707 mineral Substances 0.000 claims abstract description 27
- 229910052797 bismuth Inorganic materials 0.000 claims abstract description 26
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 claims abstract description 26
- 239000002516 radical scavenger Substances 0.000 claims abstract description 10
- 239000006185 dispersion Substances 0.000 claims abstract description 8
- 239000006148 magnetic separator Substances 0.000 claims abstract description 7
- 239000006246 high-intensity magnetic separator Substances 0.000 claims description 13
- 229910052951 chalcopyrite Inorganic materials 0.000 claims description 8
- DVRDHUBQLOKMHZ-UHFFFAOYSA-N chalcopyrite Chemical compound [S-2].[S-2].[Fe+2].[Cu+2] DVRDHUBQLOKMHZ-UHFFFAOYSA-N 0.000 claims description 8
- 229910001779 copper mineral Inorganic materials 0.000 claims description 8
- 229910000072 bismuth hydride Inorganic materials 0.000 claims description 7
- BPBOBPIKWGUSQG-UHFFFAOYSA-N bismuthane Chemical compound [BiH3] BPBOBPIKWGUSQG-UHFFFAOYSA-N 0.000 claims description 7
- 238000002604 ultrasonography Methods 0.000 claims description 2
- 210000001367 artery Anatomy 0.000 claims 1
- 239000004575 stone Substances 0.000 claims 1
- 210000003462 vein Anatomy 0.000 claims 1
- 238000000034 method Methods 0.000 description 16
- 238000000926 separation method Methods 0.000 description 12
- KFSLRIDSBUUESB-UHFFFAOYSA-N bismuth;sulfanylidenecopper Chemical compound [Bi].[Cu]=S KFSLRIDSBUUESB-UHFFFAOYSA-N 0.000 description 7
- 229910052948 bornite Inorganic materials 0.000 description 6
- 238000005188 flotation Methods 0.000 description 3
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 239000003112 inhibitor Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000001629 suppression Effects 0.000 description 2
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000005408 paramagnetism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- -1 which scans tailing Chemical compound 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/002—High gradient magnetic separation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
- B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
-
- 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
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C1/00—Magnetic separation
- B03C1/02—Magnetic separation acting directly on the substance being separated
- B03C1/025—High gradient magnetic separators
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a kind of copper bismuth bulk concentrate ultrasonic waves to disperse magnetic separation separating technology, wherein copper bismuth bulk concentrate ultrasonic wave dispersion magnetic separation separating technology includes the following steps：A, it sizes mixing：Copper bismuth bulk concentrate is sized mixing, copper bismuth bulk concentrate ore pulp is obtained；B, ultrasonic wave disperses：Ultrasonic wave dispersion is carried out to the copper bismuth bulk concentrate ore pulp using ultrasonic wave separating apparatus, so that the copper bismuth mineral grain dispersion in copper bismuth bulk concentrate ore pulp, eliminates the agglomerate between copper bismuth mineral grain；C, copper magnetic separation roughing：Copper magnetic separation roughing is carried out to the copper bismuth bulk concentrate ore pulp using magnetic separator, obtains copper rougher concentration and copper rougher tailings；D, copper magnetic separation is scanned：Copper magnetic separation is carried out to copper rougher tailings to scan, obtain copper scavenger concentrate and copper scans tailing, it is bismuth concentrate that copper, which scans tailing, using magnetic separator；E, copper magnetic separation is selected：It is selected to the progress copper magnetic separation of copper rougher concentration, obtain copper chats and copper concentrate.
Description
Technical field
The present invention relates to minerals separation technical fields, and in particular, to a kind of copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation
Separating technology.
Background technology
Separation is a more difficult project in ore-dressing technique, relatively fewer to the research of Separation both at home and abroad.
In many mines in China, since copper bismuth fails preferably to detach, qualified bismuth concentrate can not be obtained, causes the loss of bismuth suitable
Seriously.Currently, the method for Separation mainly has gravity treatment, flotation and wet method, Gravity separation effect is poor, wet separation copper bismuth
The problems such as although separative efficiency is higher, it is serious that there are environmental pollutions, and production cost is high, equipment seriously corroded.FLOTATION SEPARATION copper
Bismuth technique is broadly divided into two kinds, and one kind floating bismuth technique for suppression copper, usually to use cyanide, and environmental pollution is serious, so
Apply fewer and fewer.The key that suppression bismuth floats process for copper is to find effective inhibitor of bismuthine, but the floatability of bismuth mineral
Preferably, the preferable inhibitor for inhibiting bismuth mineral is not developed also at present.Therefore, develop a kind of technological process it is simple, to ring
The Separation technological process that border is pollution-free, separative efficiency is high is of great practical significance and far-reaching significance.
Invention content
The object of the present invention is to provide a kind of copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology, copper bismuth mixing
The technological process of concentrate ultrasonic wave dispersion-magnetic separation separating technology is simple, separative efficiency is high and environmentally friendly.
To achieve the above object, the technical scheme is that, a kind of copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation is provided
Separating technology, wherein the copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology includes the following steps：
A, it sizes mixing：Copper bismuth bulk concentrate is sized mixing, copper bismuth bulk concentrate ore pulp is obtained；B, ultrasonic wave disperses：Use ultrasound
Wave separating apparatus carries out ultrasonic wave dispersion to the copper bismuth bulk concentrate ore pulp, so that the copper bismuth in the copper bismuth bulk concentrate ore pulp
Ore particle disperses, and eliminates the agglomerate between the copper bismuth mineral grain；C, copper magnetic separation roughing：Using magnetic separator to the copper bismuth bulk concentrate
Ore pulp carries out copper magnetic separation roughing, obtains copper rougher concentration and copper rougher tailings；D, copper magnetic separation is scanned：Using magnetic separator to the copper
Rougher tailings carries out copper magnetic separation and scans, and obtains copper scavenger concentrate and copper scans tailing, it is bismuth concentrate that the copper, which scans tailing,；E, copper
Magnetic separation is selected：It is selected to copper rougher concentration progress copper magnetic separation, obtain copper chats and copper concentrate.
Preferably, the copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology is further comprising the steps of：By the copper
Scavenger concentrate is back to the magnetic separation roughing step, by the copper scavenger concentrate and the copper bismuth bulk concentrate ore pulp jointly into
Row copper magnetic separation roughing.
Preferably, the copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology is further comprising the steps of：By the copper
Middling recurrence is to last magnetic concentration working.
Preferably, the number of the copper magnetic separation roughing is 1 time~2 times, and the number that the copper is scanned is 1 time~3 times, described
The selected number of copper magnetic separation is 1 time~3 times.
Preferably, the liberation degree of minerals of the copper mineral in the copper bismuth bulk concentrate and bismuth mineral is all higher than 92%；The copper
The content of chalcopyrite and bornite in mineral is more than 90%, and the content of the bismuthine in the bismuth mineral is more than 90%；The copper
The content of gangue mineral in bismuth bulk concentrate is less than 30%.
Preferably, the magnetic separator is High gradient high intensity magnetic separator.
Preferably, when carrying out the copper magnetic separation roughing and the copper magnetic separation is scanned, the back of the body of the High gradient high intensity magnetic separator
Scape magnetic field intensity is more than 1.2T.
Preferably, when the progress copper magnetic separation is selected, the background magnetic field intensity of the High gradient high intensity magnetic separator is more than
1.2T。
Preferably, a concentration of 10%-15% of the copper bismuth bulk concentrate ore pulp.
Preferably, the quality of mine of the fineness less than 74 microns accounts for the copper bismuth bulk concentrate in the copper bismuth bulk concentrate
90% or more of gross mass.
The technical principle of above-mentioned technical proposal is that the copper mineral in copper bismuth bulk concentrate floatation is mainly chalcopyrite and spot copper
Mine, bismuth mineral are mainly bismuthine.Chalcopyrite and bornite are paramagnetism mineral, can be by within the scope of certain magnetic field intensity
It is adsorbed on magnetic media surface, into magnetic concentrate；Bismuthine is diamagnetism mineral, it is difficult to be magnetized, cannot be inhaled in magnetic field
It is attached to magnetic media surface and enters magnetic tailing, to realize the Separation of copper bismuth bulk concentrate.
Based on the above technical principle, copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology of the invention has as follows
Advantage：
Copper bismuth ultrasonic wave dispersion-magnetic separation separation belongs to physical upgrading process, and the separating technology flow is simple, easily operated, choosing
Mine process need not use separation chemistry beneficiation reagent, beneficiation wastewater can be with fully recovering, and not only separative efficiency is high, but also eliminates
The harm of traditional flotation and wet copper bismuth separation process Chinese medicine to environment, environment protecting is good, has larger popularization and application
Value.
Other features and advantages of the present invention will be described in detail in subsequent specific embodiment part.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the process flow chart of the copper bismuth bulk concentrate Magnetic Isolation technique of the present invention.
Fig. 2 is the beneficiation flowsheet figure of the embodiment of the present invention 2.
Specific implementation mode
Specific embodiments of the present invention are described in detail below in conjunction with attached drawing.It should be understood that described herein
Specific embodiment be merely to illustrate and explain the present invention, be not intended to restrict the invention.
Embodiment 1
Copper grade 24.61% in copper sulfide bismuth bulk concentrate, bismuth grade 2.43%, chalcopyrite and bornite in copper mineral
Content（That is the total content of both chalcopyrite and bornite）It is 72%, the content of the bismuthine in bismuth mineral is 3%, and copper sulfide bismuth is mixed
It closes fineness in concentrate and accounts for 96.4% less than 74 μm of mine, the liberation degree of minerals of copper mineral and bismuth mineral is 94.1%, copper sulfide bismuth
The content of gangue mineral is 25% in bulk concentrate.
Copper sulfide bismuth bulk concentrate is sized mixing to a concentration of the 12% of ore pulp, is obtained copper bismuth bulk concentrate ore pulp, is used ultrasonic wave
Separating apparatus disperses ore pulp, and the ore pulp after dispersion carries out magnetic separation.Set the magnetic field intensity of High gradient high intensity magnetic separator as
1.35T, using High gradient high intensity magnetic separator to copper bismuth bulk concentrate ore pulp carry out the roughing of copper magnetic separation twice, obtain copper rougher concentration and
Copper rougher tailings continues copper magnetic separation twice to copper rougher tailings using High gradient high intensity magnetic separator and scans, sets High gradient high intensity magnetic separation
The magnetic field intensity of machine is 1.5T, obtains copper scavenger concentrate and copper scans tailing, it is bismuth concentrate that copper, which scans tailing, and copper is scanned twice
Concentrate concentrates the magnetic concentration working for being back to copper roughing.
To the progress of copper rougher concentration, copper magnetic separation is selected three times, copper chats and copper concentrate is obtained, by copper middling recurrence supreme one
Secondary magnetic concentration working.Three times in copper refining process, the magnetic field intensity of High gradient high intensity magnetic separator is set as 1.35T.
The test result of embodiment 1 is shown in Table 1
1 embodiment of table, 1 test result（%）
Embodiment 2
Copper sulfide bismuth bulk concentrate copper grade 23.61%, bismuth grade 6.19%, chalcopyrite and bornite in copper mineral contain
Amount（That is the total content of both chalcopyrite and bornite）It is 68%, the content of the bismuthine in bismuth mineral is 7.5%, copper bismuth mixing essence
What fineness was less than 74 μm of mines in mine accounts for 91.2%, and the liberation degree of minerals of copper mineral and bismuth mineral is 94.8%, copper sulfide bismuth mixing essence
The content of gangue mineral is 24.5% in mine.
It is mixed to obtain copper bismuth as shown in Fig. 2, copper sulfide bismuth bulk concentrate is sized mixing to a concentration of the 12% of ore pulp for the magnetic separation process
Concentrate pulp is closed, ore pulp is disperseed using ultrasonic wave separating apparatus, the ore pulp after dispersion carries out magnetic separation.Set the strong magnetic of high gradient
It is 1.6T to select the magnetic field intensity of machine, and a copper magnetic separation roughing is carried out to copper bismuth bulk concentrate ore pulp using High gradient high intensity magnetic separator,
Copper rougher concentration and copper rougher tailings are obtained, copper magnetic separation twice is continued to copper rougher tailings using High gradient high intensity magnetic separator and is scanned,
The magnetic field intensity of High gradient high intensity magnetic separator is set as 1.8T, copper scavenger concentrate is obtained and copper scans tailing, copper scans tailing and is
Bismuth concentrate, copper scavenger concentrate, which is concentrated, twice is back to the magnetic concentration working of copper roughing.
It is selected to copper rougher concentration progress copper magnetic separation twice, copper chats and copper concentrate are obtained, by copper middling recurrence supreme one
Secondary magnetic concentration working（The copper middling recurrence copper roughing that i.e. copper selected one obtains, specifically, by the copper chats and copper bismuth bulk concentrate mine
Slurry is common to carry out copper roughing；The copper middling recurrence copper selected one that copper selected two obtains, specifically, by the copper chats and copper roughing essence
It is selected that mine carries out copper jointly）.Twice in copper refining process, the magnetic field intensity of High gradient high intensity magnetic separator is set as 1.6T.
The test result of embodiment 2 is shown in Table 2
2 embodiment of table, 2 test result（%）
Obviously, the above embodiments are merely examples for clarifying the description, and the restriction not to embodiment.For
For those of ordinary skill in the art, other various forms of variations or change can also be made on the basis of the above description
It is dynamic.There is no need and unable to be exhaustive to all embodiments.And obvious changes or variations extended from this
It is still within the protection scope of the invention.
Claims (5)
1. a kind of copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology, which is characterized in that the copper bismuth bulk concentrate ultrasound
Wavelength-division dissipates-and magnetic separation separating technology includes the following steps：
A, it sizes mixing：Copper bismuth bulk concentrate is sized mixing, copper bismuth bulk concentrate ore pulp is obtained；
B, ultrasonic wave disperses：Ultrasonic wave dispersion is carried out to the copper bismuth bulk concentrate ore pulp using ultrasonic wave separating apparatus, so that institute
The copper bismuth mineral grain dispersion in copper bismuth bulk concentrate ore pulp is stated, the agglomerate between the copper bismuth mineral grain is eliminated；
C, copper magnetic separation roughing：Copper magnetic separation roughing is carried out to the copper bismuth bulk concentrate ore pulp using magnetic separator, obtains copper roughing essence
Mine and copper rougher tailings；
D, copper magnetic separation is scanned：Copper magnetic separation is carried out to the copper rougher tailings to scan, obtain copper scavenger concentrate and copper using magnetic separator
Tailing is scanned, it is bismuth concentrate that the copper, which scans tailing,；
E, copper magnetic separation is selected：It is selected to copper rougher concentration progress copper magnetic separation, obtain copper chats and copper concentrate；
Wherein, the copper scavenger concentrate is back to the magnetic separation roughing step, by the copper scavenger concentrate and the copper bismuth
Bulk concentrate ore pulp carries out copper magnetic separation roughing jointly；Further, by the copper middling recurrence to last magnetic concentration working；The magnetic
It is High gradient high intensity magnetic separator to select machine；
When carrying out the copper magnetic separation roughing, the copper magnetic separation being scanned and the copper magnetic separation is selected, the High gradient high intensity magnetic separator
Background magnetic field intensity be more than 1.2T.
2. copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology according to claim 1, which is characterized in that described
The number of copper magnetic separation roughing is 1 time~2 times, and the number that the copper magnetic separation is scanned is 1 time~3 times, selected time of the copper magnetic separation
Number is 1 time~3 times.
3. copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology according to claim 1, which is characterized in that described
The liberation degree of minerals of copper mineral and bismuth mineral in copper bismuth bulk concentrate is all higher than 92%；Chalcopyrite in the copper mineral and spot
The content of copper mine is more than 90%, and the content of the bismuthine in the bismuth mineral is more than 90%；Arteries and veins in the copper bismuth bulk concentrate
The content of stone ore object is less than 30%.
4. copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology according to claim 1, which is characterized in that described
A concentration of 10%-15% of copper bismuth bulk concentrate ore pulp.
5. copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology according to claim 1, which is characterized in that described
The quality of mine of the fineness less than 74 microns accounts for 90% or more of the gross mass of the copper bismuth bulk concentrate in copper bismuth bulk concentrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910271.XA CN106238202B (en) | 2016-10-19 | 2016-10-19 | Copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610910271.XA CN106238202B (en) | 2016-10-19 | 2016-10-19 | Copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology |
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| CN106238202A CN106238202A (en) | 2016-12-21 |
| CN106238202B true CN106238202B (en) | 2018-07-13 |
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| CN201610910271.XA Expired - Fee Related CN106238202B (en) | 2016-10-19 | 2016-10-19 | Copper bismuth bulk concentrate ultrasonic wave dispersion-magnetic separation separating technology |
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| CN106583026B (en) * | 2016-10-31 | 2019-11-26 | 江苏旌凯中科超导高技术有限公司 | A kind of floating magnetic joint separation of copper-molybdenum-separation method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214467A (en) * | 2007-12-29 | 2008-07-09 | 内蒙古科技大学 | Ultrasound wave barrel magnetic separator |
| CN101417260A (en) * | 2008-12-05 | 2009-04-29 | 长沙有色冶金设计研究院 | High iron bauxite dressing method |
| CN201244512Y (en) * | 2008-06-16 | 2009-05-27 | 江西永丰县博源实业有限公司 | Electromagnetic separator |
| CN202683335U (en) * | 2012-06-01 | 2013-01-23 | 安徽大昌矿业集团有限公司 | Iron increasing and silicon decreasing device for tailings of iron mine |
| EP2792412A1 (en) * | 2011-12-12 | 2014-10-22 | UBE Industries, Ltd. | Mixture separation method and separation device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6026567B2 (en) * | 1981-12-15 | 1985-06-24 | 工業技術院長 | Continuous high gradient magnetic sorting device |
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2016
- 2016-10-19 CN CN201610910271.XA patent/CN106238202B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101214467A (en) * | 2007-12-29 | 2008-07-09 | 内蒙古科技大学 | Ultrasound wave barrel magnetic separator |
| CN201244512Y (en) * | 2008-06-16 | 2009-05-27 | 江西永丰县博源实业有限公司 | Electromagnetic separator |
| CN101417260A (en) * | 2008-12-05 | 2009-04-29 | 长沙有色冶金设计研究院 | High iron bauxite dressing method |
| EP2792412A1 (en) * | 2011-12-12 | 2014-10-22 | UBE Industries, Ltd. | Mixture separation method and separation device |
| CN202683335U (en) * | 2012-06-01 | 2013-01-23 | 安徽大昌矿业集团有限公司 | Iron increasing and silicon decreasing device for tailings of iron mine |
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