CN107051711A - A kind of method that mineral processing tailing of bauxite is selected again - Google Patents
A kind of method that mineral processing tailing of bauxite is selected again Download PDFInfo
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- CN107051711A CN107051711A CN201710228587.5A CN201710228587A CN107051711A CN 107051711 A CN107051711 A CN 107051711A CN 201710228587 A CN201710228587 A CN 201710228587A CN 107051711 A CN107051711 A CN 107051711A
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- bauxite
- mineral processing
- tailing
- selected again
- processing tailing
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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
- B03B9/06—General arrangement of separating plant, e.g. flow sheets specially adapted for refuse
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)
Abstract
A kind of method that mineral processing tailing of bauxite is selected again, is related to mineral processing tailing of bauxite applied to the choosing method again in aluminum oxide production process.It is characterized in that it selects process to be that mineral processing tailing of bauxite is carried out into ore grinding again, ore pulp adjustment is carried out again, add regulator, inhibitor, collecting agent and carry out fully mixing, high pressure mineralising, flotation is carried out at a temperature of 40~70 DEG C using flotation cell without transmission, diaspore mineral are made to be floated by foam carrier, gangue mineral is stayed in ore pulp.Using the method for the present invention, raising aluminium concentrate alumina recovery rate is can reach, mine tailing A/S and Al are selected in reduction again2O3The purpose of content, is particularly suitable for handling A/S >=1.3, Al2O3>=38% selects mine tailing, by this method, can make true tailings A/S≤1.2.The present invention has the advantages that technique is simple, cost is low, dosing is saved, application prospect is extensive, easy to spread.
Description
Technical field
A kind of method that mineral processing tailing of bauxite is selected again, is related to mineral processing tailing of bauxite and is applied in aluminum oxide production process again
Choosing method.
Technical background
China is the big alumina producing state of the first in the world, in recent years, and bauxite resource consumption steeply rises, and ore quality is every
Condition more under, the guaranteed extent of high-quality resource is increasingly severe, it is difficult to be after.Constantly expand along with domestic alumina producing scale
, developing domestic difficult bauxite resource turns into Alumina Enterprise inevitable choice.Ore concentration of bauxite-Bayer process life
Production aluminum oxide is the effective ways that high-efficiency and economic utilizes low-grade bauxite resource, with the development of ore concentration of bauxite technology, state
It is interior successive to have built multiple ore concentration of bauxite factories.Current bauxite ore dressing plant running rate is relatively low, and main cause is ore concentration of bauxite
Cost is higher, selects tailings grade higher, and resource utilization is relatively low, causes ore dressing plant profit meagre.
Accordingly, it would be desirable to for a kind of choosing method again of mineral processing tailing of bauxite exploitation, by being selected again mineral processing tailing of bauxite,
True tailings A/S is further reduced, bauxite resource utilization rate is improved, reduction ore concentration of bauxite cost is reached, enterprise is competing
Strive the purpose of power.
It is domestic at present that more is studied to bauxite floatation desilication, while have certain research to mineral processing tailing of bauxite purposes,
But select mineral processing tailing of bauxite aspect report less again.
The content of the invention
The purpose of the present invention is higher for current mineral processing tailing of bauxite A/S contents, and alumina recovery rate is relatively low, is produced into
This is higher, can effectively improve the efficiency of separation there is provided one kind the problem of the deficiency that prior art is present, reduce true tailings A/S, carry
The mineral processing tailing of bauxite of high concentrate alumina recovery rate choosing method again.
The present invention uses following technical proposals to achieve the above object.
A kind of method that mineral processing tailing of bauxite is selected again, it is characterised in that it selects process to be to be ground mineral processing tailing of bauxite again
Ore deposit, then ore pulp adjustment is carried out, add regulator, inhibitor, collecting agent and carry out fully mixing, high pressure mineralising, in 40~70 DEG C of temperature
Degree is lower to carry out flotation, diaspore mineral is floated by foam carrier, gangue mineral is stayed in ore pulp.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that described mineral processing tailing of bauxite is ground
The mog of ore deposit is that -0.045mm accounts for 50%~100%.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that it is fully mixed, high pressure mineralization process
Carried out using flotation cell without transmission.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that described mineral processing tailing of bauxite, its A/S
>=1.3, Al2O3>=38%.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that described mineral processing tailing of bauxite is ground
Ore deposit mode is one section of closed circuit grinding, two sections of closed circuit grindings.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that it carries out the ore pulp of slurry temperature adjustment
Temperature is 40~70 DEG C.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that the ore pulp of its floatation process is alkaline ring
Border, pH value is 7.0~11.0, and pulp density is 5%~40%.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that the inhibitor is sodium pyrophosphate, six
One or more in sodium metaphosphate, prodan, sodium metasilicate are combined, and its consumption is 10~200g/t.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that the collecting agent is oleic acid, benzyl
One or more in hydroximic acid, aliphatic acid, oxidized paraffin wax soap, industrial soap flakes are combined, and its consumption is 50~200g/t.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, it is characterised in that floatation equipment used is floating without transmission
Select groove, flotation pulp flow at high speed in flotation cell without transmission realizes efficient mineralization, ore flotation is voltage-controlled to be made as 0.18~
0.25MPa。
A kind of method selected again of mineral processing tailing of bauxite of the present invention, it is characterised in that will be by foam carrier by a hydraulic aluminium
Stone is reclaimed, so as to improve aluminium concentrate alumina recovery rate.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, passes through selective milling so that valuable mineral and gangue
Mineral monomer dissociation is more abundant, while increasing flotation of ore pulp temperature, it is to avoid collecting performance under current desiliconization collecting agent low temperature environment
The impacted present situation with selection performance.
By the optimization and the addition of combination medicament to flotation parameters, strengthen the hydrophobic of valuable mineral (diaspore)
Property, so that diaspore mineral flow out with foam, and gangue mineral (silicate mineral) is stayed in ore pulp so that useful ore deposit
Thing is separated with gangue mineral, so as to reach reduction true tailings A/S and Al2O3Content, improves the purpose of the aluminium concentrate rate of recovery.Tool
There is flow short, equipment requirement is simple, easy to operate, the advantages of ore dressing power cost is low, dosing is saved.
Under conditions of mog (- 0.045mm) 50%~100%, pH regulators are added, slurry pH is adjusted to
7.0~11.0, cause pulp density to be 5~40% by adjustment, slurry temperature is 40~70 DEG C, add composite inhibitor, catch
Agent is received, using new flotation cell without transmission, flotation operation is carried out under conditions of ore deposit presses 0.18~0.25MPa, reaches reduction most
Finality ore deposit A/S and Al2O3Content, improves aluminium concentrate rate of recovery purpose, true tailings A/S≤1.2.
Brief description of the drawings
Fig. 1 is the one roughing primary cleaning once purging selection flotation process figure using the inventive method；
Fig. 2 is the one roughing selected once purging selection flotation process figure twice using the inventive method；
Fig. 3 is the one roughing selected once purging selection flotation process figure twice using the inventive method；
Fig. 4 is to use the one roughing of the inventive method is selected twice to scan flotation process figure twice；
Fig. 5 is the one roughing triple cleaning once purging selection flotation process figure using the inventive method.
Embodiment
A kind of method that mineral processing tailing of bauxite is selected again, described mineral processing tailing of bauxite, its A/S >=1.3, Al2O3>=38%,
Pass through closed circuit grinding so that mog is that -0.045mm accounts for 50%~100%；By sizing mixing so that flotation of ore pulp concentration is 5
~40%, flotation temperature is 40~70%, and pH value is 7.0~11.0；Inhibitor is sodium pyrophosphate, calgon, fluosilicic acid
One or more in sodium, sodium metasilicate are combined, and its consumption is 10~200g/t；Collecting agent is oleic acid, benzyl hydroximic acid, fat
One or more in acid, oxidized paraffin wax soap, industrial soap flakes are combined, and its consumption is 50~200g/t；Floatation equipment is without transmission
Flotation cell, ore flotation pressure is 0.18~0.25MPa.
The method that a kind of mineral processing tailing of bauxite of the present invention is selected again, its method is mineral processing tailing of bauxite through certain ore grinding work
Skill, reach through sizing mixing certain floatation concentration and temperature after, be separately added into regulator, inhibitor, collecting agent, fully mix
Even, mineralising, makes valuable mineral diaspore be floated by foam carrier, and gangue silicate mineral is then stayed in ore pulp；Pass through
Foam carrier is reclaimed diaspore, so as to improve aluminium concentrate alumina recovery rate.
Embodiment 1
Somewhere mineral processing tailing of bauxite, its multielement analysis and material phase analysis the results are shown in Table shown in 1, table 2：
The somewhere mineral processing tailing of bauxite multielement analysis result of table 1
| Composition | Al2O3 | SiO2 | Fe2O3 | TiO2 | K2O | Na2O | CaO | MgO | Igloss | A/S |
| Content/% | 48.14 | 28.48 | 4.22 | 2.23 | 0.35 | 0.08 | 0.49 | 0.25 | 14.02 | 1.69 |
Select mine tailing material phase analysis result in the somewhere of table 2
| Composition | Diaspore | Illite | Kaolinite | Quartz | Siderite | Calcite | Anatase | Rutile |
| Content/% | 23.1 | 12.2 | 53.4 | 1 | 3.7 | 0.9 | 2.2 | 1 |
Select Al in mine tailing2O3Content is 48.14%, SiO2Content is 28.48%.Select mine tailing fineness for 65.84% (-
0.045mm), mog is milled to by 92.30% (- 0.045mm) by one section of closed circuit grinding, slurry pH is adjusted to 9~
9.5, " one roughing primary cleaning once purging selection ", twice " one roughing selected once purging selection ", " one roughing three is respectively adopted
Secondary selected once purging selection " flow is tested, and experiment process figure is as shown in Fig. 1, Fig. 2, Fig. 5, wherein " one roughing primary cleaning
Once purging selection " flow, pulp density is 5%, and slurry temperature is 40 DEG C, regulator (sodium pyrophosphate and prodan 1:1) consumption
100g/t, collecting agent (oleic acid and benzyl hydroximic acid 1:1) consumption 100g/t, ore flotation pressure is 0.22MPa；" one roughing two
Secondary selected once purging selection " flow, pulp density is 30%, and slurry temperature is 45 DEG C, regulator (sodium pyrophosphate and calgon
2:1) consumption 70g/t, collecting agent (oleic acid and oxidized paraffin wax soap 1:1) consumption 150g/t, ore flotation pressure is 0.25MPa；It is " once thick
Select triple cleaning once purging selection " flow, pulp density is 40%, and slurry temperature is 60 DEG C, regulator (sodium metasilicate and sodium pyrophosphate
2:1) consumption 90g/t, collecting agent (aliphatic acid and industrial soap flakes) consumption 120g/t, ore flotation pressure is 0.20MPa.
Result of the test is as shown in table 3.
The somewhere mineral processing tailing of bauxite of table 3 selects result of the test (%) again
The data in table 3：
Selecting mine tailing Al2O3Content be 48.25%, A/S be 1.70 under conditions of, by the way that " one roughing triple cleaning is once
Scan " flow, obtain yield 30.27%, Al2O3Content is the aluminium concentrate that 66.45%, A/S is 5.93；Yield 69.73%,
Al2O3Content is the mine tailing that 40.45%, A/S is 1.12.
Embodiment 2
Somewhere mineral processing tailing of bauxite, its multielement analysis and material phase analysis the results are shown in Table shown in 4, table 5：
The somewhere mineral processing tailing of bauxite multielement analysis result of table 4
| Composition | Al2O3 | SiO2 | Fe2O3 | TiO2 | K2O | Na2O | CaO | MgO | Igloss | A/S |
| Content/% | 43.78 | 32.40 | 5.46 | 2.75 | 0.78 | 0.60 | 0.35 | 0.28 | 13.48 | 1.35 |
The somewhere mineral processing tailing of bauxite material phase analysis result of table 5
| Composition | Diaspore | Illite | Kaolin | Bloodstone | Calcite | Rutile | Anatase |
| Content/% | 19.6 | 11.1 | 58.2 | 5.5 | 0.6 | 0.9 | 1.8 |
Select Al in mine tailing2O3Content is 43.78%, SiO2Content is that 32.40%, A/S is 1.35.The mine tailing fineness is selected to be
73.42% (- 0.045mm), is milled to 95.62% (- 0.045mm), by slurry pH by one section of closed circuit grinding by mog
Adjust to 9.5~10.5, " one roughing primary cleaning once purging selection " is respectively adopted, " one roughing is selected twice to be swept twice
Choosing ", " one roughing twice selected once purging selection " flow are tested, experiment process figure as shown in Fig. 1, Fig. 3, Fig. 4, wherein
" one roughing primary cleaning once purging selection " flow, pulp density is 15%, and slurry temperature is 70 DEG C, regulator (hexa metaphosphoric acid
Sodium) consumption 60g/t, collecting agent (oleic acid and industrial soap flakes 1:2) consumption 50g/t, ore flotation pressure is 0.18MPa；" one roughing two
Secondary selected once purging selection " flow, pulp density is 20%, and slurry temperature is 60 DEG C, regulator (prodan and sodium pyrophosphate)
Consumption 100g/t, collecting agent (oleic acid and aliphatic acid 1:2) consumption 120g/t, ore flotation pressure is 0.20MPa；" one roughing is twice
It is selected to scan twice " flow, pulp density is 35%, and slurry temperature is 50 DEG C of regulator consumptions (sodium pyrophosphate and sodium metasilicate 1:
1) 160g/t, collecting agent (benzyl hydroximic acid) consumption 80g/t, ore flotation pressure are 0.25MPa.
Result of the test is as shown in table 6.
The somewhere mineral processing tailing of bauxite of table 6 selects result of the test (%) again
The data in table 6：
Selecting mine tailing Al2O3Content be 43.82%, A/S be 1.35 under conditions of, by the way that " one roughing is selected twice twice
Scan " flow, obtain yield 18.07%, Al2O3Content is the aluminium concentrate that 62.41%, A/S is 5.86；Yield 81.93%,
Al2O3Content is the mine tailing that 39.72%, A/S is 1.06.
Embodiment 3
Somewhere mineral processing tailing of bauxite, its multielement analysis and material phase analysis the results are shown in Table shown in 7, table 8：
The somewhere mineral processing tailing of bauxite multielement analysis result of table 7
| Composition | Al2O3 | SiO2 | Fe2O3 | TiO2 | K2O | Na2O | CaO | MgO | Igloss | A/S |
| Content/% | 39.46 | 28.86 | 12.98 | 2.82 | 3.87 | 0.279 | 0.65 | 0.47 | 10.48 | 1.37 |
The somewhere mineral processing tailing of bauxite material phase analysis result of table 8
| Composition | Diaspore | Illite | Kaolinite | Quartz | Bloodstone | Anatase+rutile | Calcite |
| Content/% | 17.5 | 32.8 | 24.5 | 2 | 14.5 | 2.8 | 1.2 |
Select Al in mine tailing2O3Content is 39.46%, SiO2Content is that 28.86%, A/S is 1.37.The mine tailing fineness is selected to be
85.87% (- 0.045mm), is milled to 98.87% (- 0.045mm), by slurry pH by one section of closed circuit grinding by mog
Adjust to 8.5~9.0, be respectively adopted " one roughing primary cleaning once purging selection ", " one roughing is selected twice to be scanned twice ",
" one roughing triple cleaning once purging selection " flow is tested, and experiment process figure is as shown in Fig. 1, Fig. 4, Fig. 5, wherein " once
Roughing primary cleaning once purging selection " flow, pulp density is 30%, and slurry temperature is 55 DEG C, regulator (calgon and silicon
Sour sodium 1:3) consumption 70g/t, collecting agent (oleic acid and benzyl hydroximic acid 1:1) consumption 120g/t, ore flotation pressure is 0.18MPa；
" one roughing is selected twice to be scanned twice " flow, pulp density is 15%, and slurry temperature is 50 DEG C, regulator (sodium pyrophosphate)
Consumption 120g/t, collecting agent (oxidized paraffin wax soap) consumption 110g/t, ore flotation pressure are 0.22MPa；" one roughing triple cleaning one
It is secondary to scan " flow, pulp density is 35%, and slurry temperature is 60 DEG C, regulator (sodium metasilicate) consumption 160g/t, collecting agent (oil
Acid) consumption 50g/t, ore flotation pressure is 0.24MPa.
Result of the test is as shown in table 9.
The somewhere mineral processing tailing of bauxite of table 9 selects result of the test (%) again
The data in table 9：
Selecting mine tailing Al2O3Content be 39.54%, A/S be 1.38 under conditions of, by the way that " one roughing primary cleaning is once
Scan " flow, obtain yield 11.64%, Al2O3Content is the aluminium concentrate that 63.15%, A/S is 5.57；Yield 88.36%,
Al2O3Content is the mine tailing that 36.43%, A/S is 1.17.
Claims (10)
1. a kind of method that mineral processing tailing of bauxite is selected again, it is characterised in that it selects process to be to be ground mineral processing tailing of bauxite again
Ore deposit, then ore pulp adjustment is carried out, add regulator, inhibitor, collecting agent and carry out fully mixing, high pressure mineralising, in 40~70 DEG C of temperature
Degree is lower to carry out flotation, diaspore mineral is floated by foam carrier, gangue mineral is stayed in ore pulp.
2. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that described bauxite
Mine tailing carries out the mog of ore grinding and accounts for 50%~100% for -0.045mm.
3. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that it is fully mixed, high pressure
Mineralization process is carried out using flotation cell without transmission.
4. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that described bauxite
Mine tailing, its A/S >=1.3, Al2O3>=38%.
5. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that described bauxite
It is one section of closed circuit grinding, two sections of closed circuit grindings that mine tailing, which carries out grinding mode,.
6. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that it carries out slurry temperature
The slurry temperature of adjustment is 40~70 DEG C.
7. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that the ore deposit of its floatation process
Starch as alkaline environment, pH value is 7.0~11.0, pulp density is 5%~40%.
8. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that the inhibitor is Jiao
One or more in sodium phosphate, calgon, prodan, sodium metasilicate are combined, and its consumption is 10~200g/t.
9. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that the collecting agent is oil
One or more in acid, benzyl hydroximic acid, aliphatic acid, oxidized paraffin wax soap, industrial soap flakes are combined, and its consumption is 50~
200g/t。
10. the method that a kind of mineral processing tailing of bauxite according to claim 1 is selected again, it is characterised in that floatation equipment used
For flotation cell without transmission, flotation pulp flow at high speed in flotation cell without transmission realizes efficient mineralization, and ore flotation is voltage-controlled to be made as
0.18~0.25MPa.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107694740A (en) * | 2017-09-27 | 2018-02-16 | 湖南有色金属研究院 | The beneficiation method of reverse flotation smithsonite from vulcanized lead zinc flotation tailing |
| CN111921695A (en) * | 2020-07-02 | 2020-11-13 | 中国铝业股份有限公司 | Method for comprehensively recovering multiple valuable minerals in bauxite |
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| CN101757986A (en) * | 2009-12-18 | 2010-06-30 | 中国铝业股份有限公司 | Method for floating bauxite |
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| CN101439315B (en) * | 2008-12-17 | 2013-03-13 | 中国铝业股份有限公司 | Flotation cell without transmission |
| CN104174484A (en) * | 2014-07-14 | 2014-12-03 | 高旭 | Desiliconization processing method for bauxite flotation tailings |
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| WO1995003891A1 (en) * | 1993-07-29 | 1995-02-09 | The Dow Chemical Company | Aryl ether monosulfonate collectors useful in the flotation of minerals |
| CN101439315B (en) * | 2008-12-17 | 2013-03-13 | 中国铝业股份有限公司 | Flotation cell without transmission |
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| CN107694740A (en) * | 2017-09-27 | 2018-02-16 | 湖南有色金属研究院 | The beneficiation method of reverse flotation smithsonite from vulcanized lead zinc flotation tailing |
| CN107694740B (en) * | 2017-09-27 | 2019-09-27 | 湖南有色金属研究院 | The beneficiation method of reverse flotation smithsonite from vulcanized lead zinc flotation tailing |
| CN111921695A (en) * | 2020-07-02 | 2020-11-13 | 中国铝业股份有限公司 | Method for comprehensively recovering multiple valuable minerals in bauxite |
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