CN107051712A - A kind of beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore - Google Patents
A kind of beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore Download PDFInfo
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- CN107051712A CN107051712A CN201710240278.XA CN201710240278A CN107051712A CN 107051712 A CN107051712 A CN 107051712A CN 201710240278 A CN201710240278 A CN 201710240278A CN 107051712 A CN107051712 A CN 107051712A
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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
- B03B1/00—Conditioning for facilitating separation by altering physical properties of the matter to be treated
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Abstract
The invention discloses a kind of beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore, including classifying grinding operation, magnetic concentration working, dense flotation operation, reselection operation.In the present invention：1st, using rod mill pre-classification ore grinding, crossing for cassiterite can be reduced and crushed, can also increase the liberation degree of minerals of cassiterite, precondition is provided for the effective cassiterite that reclaims；2nd, the higher magnetic iron ore of the larger iron content of proportion is sloughed using magnetic separation, the higher magnetic iron ore of the larger sulfur-bearing of proportion is sloughed using flotation, reduced the interference of heavy mineral, be that follow-up Gravity separation cassiterite creates favorable conditions.3rd, using the flow of middling regrinding and reprocessing, the energy consumption of ore grinding had both been reduced, crossing for cassiterite is reduced again and is crushed, moreover it is possible to has had the liberation degree of minerals for the raising cassiterite being directed to, it is with low cost, it is easy to industrial production；4th, production process does not produce secondary pollution, environmentally friendly.
Description
Technical field
The invention belongs to mineral engineering field, and in particular to a kind of choosing of the recovery valuable metal of stanniferous magnetic iron ore
Ore deposit method.
Background technology
Tin is a kind of silvery white non-ferrous metal, has the advantages that fusing point is low, corrosion-resistant, fatigue resistance is good, plasticity is high.With section
The development of skill, the application field of tin is increasingly increasing, and is existed in the various fields of national economy and national defense construction extensive
Future.Tin alloy is widely used in aircraft engine, guided missile material etc..Although the tin mineral having now been found that has kind more than 20,
There was only cassiterite and stannite with economic implications at present, remaining tin mineral enrichment degree is not high, does not form industrial valency also
Value.The maximum feature of cassiterite is that hardness is big, density is high, property is crisp frangible, and density is 6.8~7.2g/cm3.China's tin ore resource
Reserves are ranked the first in the world, but its ore deposit has poor, thin, miscellaneous and polymetallic feature, belongs to and compares refractory ore.Certainly
In right boundary, the cassiterite that monomer particle is present is not common, cassiterite often with other mineral intergrowths.Common carrier be magnetic iron ore,
The mineral such as garnet, hornblend and fluorite.For skarn type tin ore, magnetic iron ore and magnetic iron ore be main mineral composition it
One.There is research to point out, the tin in magnetic iron ore and magnetic iron ore, more using cassiterite inclusion enclave as principal mode.Therefore to the companion of cassiterite
A kind of raw important sources for being recycled into tin metal.Recorded according to relevant information, China's tin metal commercial reserves is only 97.2 ten thousand
Ton, predicts that the static state of tin ensures that the time limit only has 6.7 years according to China's nonferrous metallic ores yield and level of resource utilization.Can be with
, it is envisioned that in the near future, mine insufficient raw material is by as the key factor for restricting China's lead Zn Cr coating sustainable development.Therefore from its
Cassiterite resource is reclaimed in his waste resource for ensureing China's Tin Resources supply and promoting the development of economy with important meaning
Justice.In order to reclaim cassiterite of the association in magnetic iron ore, it is necessary to develop a kind of efficient, environmentally friendly, cheap ore-dressing technique.Cause
This, the technique that exploitation is suitable for handling such ore is significant.
The content of the invention
It is an object of the invention to provide a kind of beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore.
The object of the present invention is achieved like this：Including classifying grinding operation, magnetic concentration working, dense flotation operation, gravity treatment
Operation, be specially：
A, classifying grinding operation：Magnetic iron ore is put into agitator to size mixing to the concentration of concentration 20~30%, pulp gravity flow to pump
Pond, cyclone, cyclone classification, the sand setting of cyclone are pumped to using Pulp pump（+ 53 microns account for 70%~95%）Into rod milling
Machine ore grinding, cyclone overflow enters next magnetic concentration working, and the ore discharge of rod mill enters pump pond, forms closed circuit grinding；
B, magnetic concentration working：Cyclone overflow feeds middle magnetic separator, and magnetic field intensity is 0.3~0.4T, and removing dissociation preferably contains
The high magnetic iron ore of iron, magnetic tailing enters next dense flotation operation；
C, dense flotation operation：Dense to magnetic tailing progress using desliming bucket, desliming bucket underflow enters flotation device, using sulfuric acid
As activator, desulfurization collecting agent floatingly selects high-grade iron concentrate, under flotation tailing enters as the collecting agent of magnetic iron ore
One reselection operation；
D, reselection operation：Flotation tailing enters shaking table and carries out gravity treatment recovery cassiterite, passes through one section of roughing, produces rough concentrate 1, chats
1 and mine tailing 1, chats 1 is regrinded using Ball-stirring mill, then using table concentration, produces rough concentrate 2, chats 2 and mine tailing 2, rough concentrate 1
With rough concentrate is 2-in-1 and table concentration, obtain Tin concentrate and Xi Fu chats, chats 2 returns to Ball-stirring mill and regrinded, and mine tailing 1 and mine tailing are 2-in-1
And it is used as total mine tailing.
In the present invention, grinding-classification operation uses rod mill, reduces crossing for cassiterite and crushes, using modest magnetic field, in advance
First the high magnetic iron ore of removing iron content, the higher magnetic iron ore of sulfur-bearing is reclaimed using flotation, using chats in mill, increase cassiterite
Liberation degree of minerals, separating effect is notable.
It is an advantage of the invention that：
1st, using rod mill pre-classification ore grinding, crossing for cassiterite can be reduced and crushed, can also increase the liberation degree of minerals of cassiterite, be
The effective cassiterite that reclaims provides precondition；
2nd, the higher magnetic iron ore of the larger iron content of proportion is sloughed using magnetic separation, it is higher to slough the larger sulfur-bearing of proportion using flotation
Magnetic iron ore, reduce heavy mineral interference, be that follow-up Gravity separation cassiterite creates favorable conditions.
3rd, using the flow of middling regrinding and reprocessing, the energy consumption of ore grinding had both been reduced, crossing for cassiterite is reduced again and is crushed, moreover it is possible to has pin
To raising cassiterite liberation degree of minerals, it is with low cost, it is easy to industrial production；
4th, production process does not produce secondary pollution, environmentally friendly.
Embodiment
With reference to embodiment, the present invention is further illustrated, but the present invention must not be limited in any way
System, based on present invention teach that any changes and modifications made, belong to protection scope of the present invention.
The present invention comprises the following steps：Classifying grinding operation, magnetic concentration working, dense flotation operation, reselection operation, specifically
For：
A, classifying grinding operation：Magnetic iron ore is put into agitator to size mixing to the concentration of concentration 20~30%, pulp gravity flow to pump
Pond, cyclone, cyclone classification, the sand setting of cyclone are pumped to using Pulp pump（+ 53 microns account for 70%~95%）Into rod milling
Machine ore grinding, cyclone overflow enters next magnetic concentration working, and the ore discharge of rod mill enters pump pond, forms closed circuit grinding；
B, magnetic concentration working：Cyclone overflow feeds middle magnetic separator, and magnetic field intensity is 0.3~0.4T, and removing dissociation preferably contains
The high magnetic iron ore of iron, magnetic tailing enters next dense flotation operation；
C, dense flotation operation：Dense to magnetic tailing progress using desliming bucket, desliming bucket underflow enters flotation device, using sulfuric acid
As activator, desulfurization collecting agent floatingly selects high-grade iron concentrate, under flotation tailing enters as the collecting agent of magnetic iron ore
One reselection operation；
D, reselection operation：Flotation tailing enters shaking table and carries out gravity treatment recovery cassiterite, passes through one section of roughing, produces rough concentrate 1, chats
1 and mine tailing 1, chats 1 is regrinded using Ball-stirring mill, then using table concentration, produces rough concentrate 2, chats 2 and mine tailing 2, rough concentrate 1
With rough concentrate is 2-in-1 and table concentration, obtain Tin concentrate and Xi Fu chats, chats 2 returns to Ball-stirring mill and regrinded, and mine tailing 1 and mine tailing are 2-in-1
And it is used as total mine tailing.
Sulfuric acid can also be replaced using copper sulphate, oxalic acid, hydrogen sulfate ammonia or ferrous sulfate in step C.
Described Ball-stirring mill can also be replaced as one kind of Regrinding equipment with flour mill, planetary ball mill.
Embodiment 1
Yunnan mountain of papers selects factory, selects after copper zinc, selects tin operation for next step, iron concentrate is first floatingly selected, finally iron concentrate
Abandon, iron concentrate fineness is 73%-0.074mm, valuable constituent only has cassiterite, iron concentrate is mainly magnetic iron ore, stanniferous 0.30%,
Sulfur-bearing 24.56%.Main gangue mineral is quartz, calcite and biotite.Above-mentioned sample ore was entered at following process steps
Reason：
A：Sample ore is put to agitator and sized mixing, it is 20% to make pulp density, and ore pulp is emitted into pump pond, is pumped into using Pulp pump
Cyclone FX125 is classified, and hydrocyclone sand enters rod mill MBS2430 ore grindings, and the ore discharge of rod mill enters pump pond.Cyclone
Overflow is delivered to next operation；
B：The overflow of cyclone feeds magnetic separator RCQ-50/80, magnetic field intensity 0.3T, carries out magnetic separation removing magnetic iron ore, magnetic separation
Mine tailing enters next operation；
C：By magnetic tailing feed desliming bucket carry out it is dense, be desliming bucket underflow density be 30%, feed in flotation device, add
1000g/t sulfuric acid, 200g/t butyl xanthate carries out the stream of one roughing once purging selection primary cleaning as desulfurization collecting agent
Journey, the iron concentrate of output sulfur-bearing 35%, flotation tailing enters next operation.
D：Flotation tailing enters the upper shaking table of classification case classification, shaking table output concentrate 1, chats 1 and mine tailing 1, during chats 1 is fed
Ore deposit pump pond is classified into cyclone FX100, and hydrocyclone sand feeds vertical mixing mill VTM-150-WB, and ore discharge feeds chats pump
Pond, the overflow of cyclone enters fine mud shaker and carries out gravity treatment, output concentrate 2, chats 2 and mine tailing 2.Concentrate 1 and concentrate is 2-in-1
And upper shaking table carry out it is selected, obtain stanniferous 41.2% Tin concentrate and the rich chats of stanniferous 3.68% tin.Chats 2 feeds chats pump
Pond, mine tailing 1 and mine tailing are 2-in-1 and for total mine tailing.Using the process above flow processing iron concentrate, stanniferous 41.2% can be obtained, tin is returned
The Tin concentrate of yield 34% and stanniferous 3.68%, the rich chats of tin of the tin rate of recovery 11%.The iron concentrate of part can also be purified, is allowed to reach
To the standard of sale, the comprehensive utilization ratio of mineral resources is improved.
Embodiment 2
Honghe, Yunnan selects factory, during zinc is selected, and produces iron concentrate, and the iron concentrate belongs to the sample ore for selecting factory discarded, and fineness is
81%-0.074mm, valuable constituent only has cassiterite, and iron concentrate is mainly magnetic iron ore, stanniferous 0.32%, sulfur-bearing 21.08%.Main
Gangue mineral is the tremolite, potassium feldspar and pyrope.Above-mentioned sample ore was entered into following process steps processing：
A：Sample ore is put to agitator and sized mixing, it is 25% to make pulp density, and ore pulp is emitted into pump pond, is pumped into using Pulp pump
Cyclone FX125 is classified, and hydrocyclone sand enters rod mill MBS2130 ore grindings, and the ore discharge of rod mill enters pump pond.Cyclone
Overflow is delivered to next operation；
B：The overflow of cyclone feeds magnetic separator RCQ-80/80, magnetic field intensity 0.4T, carries out magnetic separation removing magnetic iron ore, magnetic separation
Mine tailing enters next operation；
C：By magnetic tailing feed desliming bucket carry out it is dense, be desliming bucket underflow density be 32%, feed in flotation device, add
800g/t sulfuric acid, 200g/t butylamine black powder carries out the stream of one roughing once purging selection primary cleaning as desulfurization collecting agent
Journey, the iron concentrate of output sulfur-bearing 33.42%, flotation tailing enters next operation.
D：Flotation tailing enters the upper shaking table of classification case classification, shaking table output concentrate 1, chats 1 and mine tailing 1, during chats 1 is fed
Ore deposit pump pond is classified into cyclone FX100, and hydrocyclone sand feeds vertical mixing mill VTM-125-WB, and ore discharge feeds chats pump
Pond, the overflow of cyclone enters fine mud shaker and carries out gravity treatment, output concentrate 2, chats 2 and mine tailing 2.Concentrate 1 and concentrate is 2-in-1
And upper shaking table carry out it is selected, obtain stanniferous 40.67% Tin concentrate and the rich chats of stanniferous 4.11% tin.Chats 2 feeds chats pump
Pond, mine tailing 1 and mine tailing are 2-in-1 and for total mine tailing.Using the process above flow processing iron concentrate, stanniferous 40.67%, tin can be obtained
The Tin concentrate of the rate of recovery 29.56% and stanniferous 4.11%, the rich chats of tin of the tin rate of recovery 8.65%.The iron concentrate of part can also be purified,
Make up to the standard of sale.
Embodiment 3
Tengchong In Yunnan Province selects factory, during selecting copper to select iron, produces iron concentrate, and the iron concentrate belongs to the sample ore for selecting factory discarded, carefully
Spend for 69%-0.074mm, valuable constituent only has cassiterite, and iron concentrate is mainly magnetic iron ore, stanniferous 0.36%, sulfur-bearing 20.42%.It is main
The gangue mineral wanted is quartz, muscovite and dolomite.Above-mentioned sample ore was entered into following process steps processing：
A：Sample ore is put to agitator and sized mixing, it is 22% to make pulp density, and ore pulp is emitted into pump pond, is pumped into using Pulp pump
Cyclone FX150 is classified, and hydrocyclone sand enters rod mill MBS2130 ore grindings, and the ore discharge of rod mill enters pump pond.Cyclone
Overflow is delivered to next operation；
B：The overflow of cyclone feeds magnetic separator RCQ-80/80, magnetic field intensity 0.4T, carries out magnetic separation removing magnetic iron ore, magnetic separation
Mine tailing enters next operation；
C：By magnetic tailing feed desliming bucket carry out it is dense, be desliming bucket underflow density be 35%, feed in flotation device, add
600g/t sulfuric acid, 150g/t butylamine black powder carries out the stream of one roughing once purging selection primary cleaning as desulfurization collecting agent
Journey, the iron concentrate of output sulfur-bearing 31.61%, flotation tailing enters next operation.
D：Flotation tailing enters the upper shaking table of classification case classification, shaking table output concentrate 1, chats 1 and mine tailing 1, during chats 1 is fed
Ore deposit pump pond is classified into cyclone FX125, and hydrocyclone sand feeds vertical mixing mill VTM-75-WB, and ore discharge feeds chats pump pond,
The overflow of cyclone enters fine mud shaker and carries out gravity treatment, output concentrate 2, chats 2 and mine tailing 2.Concentrate 1 and concentrate is 2-in-1 simultaneously
Upper shaking table progress is selected, obtains stanniferous 42.06% Tin concentrate and the rich chats of stanniferous 3.81% tin.Chats 2 feeds chats pump pond,
Mine tailing 1 and mine tailing are 2-in-1 and for total mine tailing.Using the process above flow processing iron concentrate, stanniferous 42.06% can be obtained, tin is reclaimed
The Tin concentrate of rate 28.77% and stanniferous 3.81%, the rich chats of tin of the tin rate of recovery 12.43%.The iron concentrate of part can also be purified, is made
The standard for reaching sale.
Embodiment 4
Factory is selected in Sichuan, during iron is selected, and produces iron concentrate, and the iron concentrate belongs to the sample ore for selecting factory discarded, and fineness is 74%-
0.074mm, valuable constituent only has cassiterite, and iron concentrate is mainly magnetic iron ore, stanniferous 0.32%, sulfur-bearing 19.81%.Main gangue
Mineral are quartz, muscovite and kaolinite.Above-mentioned sample ore was entered into following process steps processing：
A：Sample ore is put to agitator and sized mixing, it is 20% to make pulp density, and ore pulp is emitted into pump pond, is pumped into using Pulp pump
Cyclone FX125 is classified, and hydrocyclone sand enters rod mill MBS2130 ore grindings, and the ore discharge of rod mill enters pump pond.Cyclone
Overflow is delivered to next operation；
B：The overflow of cyclone feeds magnetic separator RCQ-63/80, magnetic field intensity 0.4T, carries out magnetic separation removing magnetic iron ore, magnetic separation
Mine tailing enters next operation；
C：By magnetic tailing feed desliming bucket carry out it is dense, be desliming bucket underflow density be 30%, feed in flotation device, add
800g/t sulfuric acid, 200g/t butylamine black powder carries out the stream of one roughing once purging selection primary cleaning as desulfurization collecting agent
Journey, the iron concentrate of output sulfur-bearing 30.47%, flotation tailing enters next operation.
D：Flotation tailing enters the upper shaking table of classification case classification, shaking table output concentrate 1, chats 1 and mine tailing 1, during chats 1 is fed
Ore deposit pump pond is classified into cyclone FX100, and hydrocyclone sand feeds vertical mixing mill VTM-75-WB, and ore discharge feeds chats pump pond,
The overflow of cyclone enters fine mud shaker and carries out gravity treatment, output concentrate 2, chats 2 and mine tailing 2.Concentrate 1 and concentrate is 2-in-1 simultaneously
Upper shaking table progress is selected, obtains stanniferous 40.11% Tin concentrate and the rich chats of stanniferous 4.05% tin.Chats 2 feeds chats pump pond,
Mine tailing 1 and mine tailing are 2-in-1 and for total mine tailing.Using the process above flow processing iron concentrate, stanniferous 40.11% can be obtained, tin is reclaimed
The Tin concentrate of rate 26.79% and stanniferous 4.05%, the rich chats of tin of the tin rate of recovery 10.27%.The iron concentrate of part can also be purified, is made
The standard for reaching sale.
Embodiment 5
Burma selects factory, during tin is selected, and produces iron concentrate, and the iron concentrate belongs to the sample ore for selecting factory discarded, and fineness is 67%-
0.074mm, valuable constituent only has cassiterite, and iron concentrate is mainly magnetic iron ore, stanniferous 0.45%, sulfur-bearing 24.36%.Main gangue
Mineral are quartz, dolomite and biotite.Above-mentioned sample ore was entered into following process steps processing：
A：Sample ore is put to agitator and sized mixing, it is 26% to make pulp density, and ore pulp is emitted into pump pond, is pumped into using Pulp pump
Cyclone FX125 is classified, and hydrocyclone sand enters rod mill MBS2130 ore grindings, and the ore discharge of rod mill enters pump pond.Cyclone
Overflow is delivered to next operation；
B：The overflow of cyclone feeds magnetic separator RCQ-50/80, magnetic field intensity 0.3T, carries out magnetic separation removing magnetic iron ore, magnetic separation
Mine tailing enters next operation；
C：By magnetic tailing feed desliming bucket carry out it is dense, be desliming bucket underflow density be 35%, feed in flotation device, add
500g/t sulfuric acid, 300g/t butylamine black powder carries out the stream of one roughing once purging selection primary cleaning as desulfurization collecting agent
Journey, the iron concentrate of output sulfur-bearing 32.16%, flotation tailing enters next operation.
D：Flotation tailing enters the upper shaking table of classification case classification, shaking table output concentrate 1, chats 1 and mine tailing 1, during chats 1 is fed
Ore deposit pump pond is classified into cyclone FX100, and hydrocyclone sand feeds vertical mixing mill VTM-100-WB, and ore discharge feeds chats pump
Pond, the overflow of cyclone enters fine mud shaker and carries out gravity treatment, output concentrate 2, chats 2 and mine tailing 2.Concentrate 1 and concentrate is 2-in-1
And upper shaking table carry out it is selected, obtain stanniferous 42.63% Tin concentrate and the rich chats of stanniferous 3.71% tin.Chats 2 feeds chats pump
Pond, mine tailing 1 and mine tailing are 2-in-1 and for total mine tailing.Using the process above flow processing iron concentrate, stanniferous 42.63%, tin can be obtained
The Tin concentrate of the rate of recovery 30.50% and stanniferous 3.71%, the rich chats of tin of the tin rate of recovery 7.62%.The iron concentrate of part can also be purified,
Make up to the standard of sale.
Claims (3)
1. the beneficiation method of the recovery valuable metal of a kind of stanniferous magnetic iron ore, it is characterised in that comprise the following steps：Grading mill
Ore deposit operation, magnetic concentration working, dense flotation operation, reselection operation, be specially：
A, classifying grinding operation：Magnetic iron ore is put into agitator to size mixing to 20~30% concentration, pulp gravity flow is adopted to pump pond
Cyclone is pumped to Pulp pump, cyclone classification, the sand setting of cyclone enters rod mill ore grinding, and cyclone overflow enters next
Individual magnetic concentration working, the ore discharge of rod mill enters pump pond, forms closed circuit grinding；
B, magnetic concentration working：Cyclone overflow feeds middle magnetic separator, and magnetic field intensity is 0.3~0.4T, and removing dissociation preferably contains
The high magnetic iron ore of iron, magnetic tailing enters next dense flotation operation；
C, dense flotation operation：Dense to magnetic tailing progress using desliming bucket, thickener underflow concentration is 25~35%, desliming
Bucket sand setting enters flotation device, and using sulfuric acid as activator, desulfurization collecting agent floatingly selects Gao Pin as the collecting agent of magnetic iron ore
The iron concentrate of position, flotation tailing enters next reselection operation；
D, reselection operation：Flotation tailing enters shaking table and carries out gravity treatment recovery cassiterite, passes through one section of roughing, produces rough concentrate 1, chats
1 and mine tailing 1, chats 1 is regrinded using Ball-stirring mill, then using table concentration, produces rough concentrate 2, chats 2 and mine tailing 2, rough concentrate 1
With rough concentrate is 2-in-1 and table concentration, obtain Tin concentrate and Xi Fu chats, chats 2 returns to Ball-stirring mill and regrinded, and mine tailing 1 and mine tailing are 2-in-1
And it is used as total mine tailing.
2. the beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore according to claim 1, it is characterised in that described
Step C in sulfuric acid can also be replaced using copper sulphate, oxalic acid, hydrogen sulfate ammonia or ferrous sulfate.
3. the beneficiation method of the recovery valuable metal of stanniferous magnetic iron ore according to claim 1, it is characterised in that described
Ball-stirring mill as one kind of Regrinding equipment, can also be replaced with flour mill, planetary ball mill.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108311292A (en) * | 2018-02-08 | 2018-07-24 | 高志 | A kind of sulfide flotation activator and preparation method thereof |
| CN109261364A (en) * | 2018-08-17 | 2019-01-25 | 昆明理工大学 | The solution of pyrite presses down activation method in a kind of shallow crust structures |
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| CN104226463A (en) * | 2014-07-28 | 2014-12-24 | 蒙自矿冶有限责任公司 | Beneficiation method for high-tin-content multi-metal sulfide ores |
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| CN108311292A (en) * | 2018-02-08 | 2018-07-24 | 高志 | A kind of sulfide flotation activator and preparation method thereof |
| CN109261364A (en) * | 2018-08-17 | 2019-01-25 | 昆明理工大学 | The solution of pyrite presses down activation method in a kind of shallow crust structures |
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Application publication date: 20170818 |