CN102909130A - Scheelite beneficiation method - Google Patents
Scheelite beneficiation method Download PDFInfo
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- CN102909130A CN102909130A CN2012104563020A CN201210456302A CN102909130A CN 102909130 A CN102909130 A CN 102909130A CN 2012104563020 A CN2012104563020 A CN 2012104563020A CN 201210456302 A CN201210456302 A CN 201210456302A CN 102909130 A CN102909130 A CN 102909130A
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Abstract
The invention discloses a scheelite beneficiation method. The scheelite beneficiation method comprises the steps of: roughly grinding raw mineral with no need of desliming; screening the raw mineral in a sieve with 200-250mu m, roughly grinding the material on the sieve again, carrying out strong magnetic separation and discarding on the mineral under the sieve, wherein mainly magnetic garnets and other magenetic minerals are mainly discarded; carrying out scheelite normal temperature flotation on the nonmagnetic mineral after the nonmagnetic mineral is finely ground; carrying out scheelite warming flotation on concentrate obtained after the rough flotation to obtain scheelite concentrate; and carrying out normal temperature floatation on discarded magnetic concentrate, adding flotation middlings into the nonmagnetic scheelite concentrate to be finely ground. The scheelite beneficiation method aims at the mineral characteristics of the scheelite, the raw mineral contains a large amount of weak magnetism calcium and iron garnet gangue, so the recovery rate can be influenced due to the argillization caused by excessive grinding. The scheelite beneficiation method utilizes a ferromagnetic beneficiation method to effectively separate the magnetic ores, so that the excessive grinding condition is lowered, and the scheelite is preliminarily separated and beneficiated. The scheelite beneficiation method can enhance the mineral grinding efficiency, reduces the mineral grinding energy consumption, enhance the selection grade of the scheelite, reduces the beneficiation amount of the flotation, lowers the dosage of flotation reagents, and enhances the total recovery rate of the scheelite. The scheelite beneficiation method is especially suitable for medium grade and low grade scheelite beneficiation.
Description
Technical field
The invention belongs to the beneficiation method of heavy metal, specifically relate to a kind of white tungsten beneficiation method.
Background technology
China produces tungsten big country, is the country of tungsten resource reserves maximum in the world, and output and export volume all rank first in the world.Tungsten resource mainly exists with wolframite and scheelite form, and along with successively decreasing of wolframite stock number, exploitation scheelite resource has become the main mine kind of tungsten resource exploitation.Because historical reasons and technical merit restriction, the utilization rate of scheelite resource is less than 50%, and a large amount of scheelites was lost in the mine tailing in the past.Progress along with efficient smelting process technology, exploitation for the scheelite mountain obtains more multiple looking, and usually, it is all lower that tungsten ore resource is composed the grade that is stored in the raw ore with respect to the nonferrous metals ore kind of routine, a lot of especially scheelite resources, grade generally all is lower than below 0.5%.
Scheelite CaWO
4, contain WO
3Be 80.53%, be generally tetragonal system, be tabular or crystal, compactness is also arranged, property is crisp, and hardness is 5～5.5, density 5.8～6.2g/cm
3, nonmagnetic.The scheelite floatability is better, but has in mind from economic point of view. and still adopt gravity separation method to reclaim to the coarse grain scheelite, the scheelite of fine-grained disseminated grain generally reclaims with floatation.The most Scheelite Deposit of China is Skarn-type, and disseminated grain size is thinner, and non-ferrous metal association or the symbiosis such as normal and multiple molybdenum bismuth also have the calcic gangue close with the tungsten ore floatability simultaneously.In the scheelite gravity treatment, because its property is crisp, easy argillization in ore grinding be difficult to the mineral processing index that reaches satisfied, so flotation is the effective ways that reclaim particulate even microfine scheelite.
Because China's Scheelite Deposit major part is skarn type, wherein gangue is take the calcic gangue mineral as main.Contain a large amount of garnet mineral in the gangue.Can be divided into by garnet chemical composition difference: pyrope (3MgOAl
2O
3SiO
2), almandine ((3FeOAl
2O
33SiO
2), spessartine (3MnOAl
2O
3SiO
2), grossularite (3CaOAl
2O
3SiO
2), andradite (3CaOFe
2O
3SiO
2).Garnet density is at 4～5g/cm
3Scope is one of mineral of density maximum in the gangue, and hardness is 7～7.5, and hardness is large, usually becomes high-abrasive material.The main andradite type of garnet in the skarn type scheelite, this garnet has weak magnetic, and this has created condition for the magnetic separation garnet.
The most typical flow process of Scheelite Flotation is to use sodium carbonate (or NaOH) and sodium metasilicate as adjusting agent, do collecting agent Scheelite Flotation ore deposit with aliphatic acid, the method that often adopts has sodium metasilicate-enuatrol method, sodium metasilicate-slaine-enuatrol method, sodium carbonate-sodium metasilicate-enuatrol method, waterglass-NaOH-enuatrol and lime method.The characteristics of these methods all are to suppress fluorite and calcite under the high alkalinity condition, the Scheelite Flotation ore deposit, and because the enuatrol poor selectivity, relatively more difficult to the separation of calcic gangue mineral, therefore the separation for the calcic gangue mineral generally is the low-grade rough concentrate that obtains first tungstenic.The former Soviet Union generally uses Dinko Petrov method (being the underflow high temperature method), and its mineral processing index is stable, to the strong adaptability of ore, and this method ore pulp of need to heating.
It is exactly that the argillization phenomenon is more serious that skarn type scheelite has another characteristic, and in the rock mass that a lot of scheelite embedded parts easily dissociate, easy argillization when overground easily along with overflow water effluxes, affects overall recovery in floatation process.For these characteristics of skarn type scheelite mineral, overground easy argillization, calcareous gangue account for the overwhelming majority, and especially the andradite amount is large.For the characteristic of above-mentioned scheelite, cause the beneficiation method of present scheelite all to exist grinding efficiency low, the energy consumption of ore grinding is large, overground phenomenon easily occurs in floatation process, and white reclaim of tungsten rate is low.
Summary of the invention
The object of the present invention is to provide a kind of raising grinding efficiency, reduce the energy consumption of ore grinding; Reduce overgroundly, improve the scheelite Beneficiation Feed Grade, reduce flotation and enter the ore dressing amount, reduce floating agent dosage, improve the overall recovery of scheelite, low-grade white tungsten beneficiation method in being specially adapted to.
Technical scheme of the present invention is: the raw ore corase grind that need not desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation described in the such scheme is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 5000～10000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
The present invention is to containing the raw ore of white tungsten WO3 0.2～0.5%, the final white tungsten fine ore grade WO that obtains to the ore deposit
3More than 65%, overall recovery is more than 80%, and method of the present invention is the mineralogical character for skarn type scheelite, contains a large amount of brownmillerite pomegranate gangues in the raw ore gangue, and this gangue has certain weak magnetic; In addition, the overground easy argillization of skarn type scheelite, affect yield, therefore according to this specific character, the method of utilizing ferromagnetism to sort can be separated the magnetic gangue effectively, realized the in advance throwing tail of the brownmillerite pomegranate gangue that hardness is larger, reduced overground situation, scheelite obtains preliminary sorting enrichment.The material that magneticly elects is also implemented one flotation, reclaims most possibly scheelite wherein.The present invention compares traditional white tungsten beneficiation flowsheet, has some following advantages.
1. reduce the ore grinding load, realize energy saving technology.Because garnet mineral hardness is large, and is wear-resisting, require to reach more than 80% for-76 μ m grade material for the scheelite mineral disaggregation, strict to grinding particle size, a large amount of garnets that exist have a great impact the grinding particle size tool.Therefore, in advance this pomegranate gangue is thrown tail, the reduction energy consumption of can enhancing productivity.
2. reduce the use amount of floating agent, because after throwing tail in advance, the ore deposit amount that enters of flotation totally reduces, and enters ore deposit grade raising, every interpolation medicament can reduce in the flotation.
3. improve white tungsten overall recovery.Rear grade is little because skarn type scheelite dissociates, when the garnet of high rigidity easily makes the mineral that dissociate overground phenomenon occur in fine grinding, the easy argillization of sample ore when overground, the ore particle of argillization is easy to be taken away by current, easily the tailing water with overflow effluxes in flotation, affects yield.By to garnet tailings discarding by preconcentration, shortened in the time of staying of fine grinding operation, reduced the overground situation of ore particle.In addition, the magnetic material of throwing tail is implemented one flotation, reduced to greatest extent the loss of valuable element.After throwing tail pomegranate gangue, favourable to the monomer dissociation of ore, the degree of dissociation of so white tungsten is large, and flotation effect is good, and tailings runs the ore deposit phenomenon to be reduced greatly, and the overall recovery of white tungsten flotation effectively improves.
Therefore, the method is a kind of optimization to conventional scheelite ore-dressing technique, and technological principle is ripe, and technological process realizes that easily the garnet that magneticly elects is comprehensive reutilization further, is that the useful of scheelite ore-dressing technique replenished.
Description of drawings
Fig. 1 is concrete technology flow chart of the present invention.
The specific embodiment
The present invention will be further described below in conjunction with accompanying drawing.
Embodiment one:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 5000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Embodiment two:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 6000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Embodiment three:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 7000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Embodiment four:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 8000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Embodiment five:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 9000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Embodiment six:
Need not the raw ore corase grind of desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, mainly skim magnetic garnet and other magnetic mineral, enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
High intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 10000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
Ore dressing result such as the following table of embodiment one to six;
Claims (7)
1. white tungsten beneficiation method, it is characterized in that: the raw ore corase grind that need not desliming, after crossing 200-250 μ m reciprocating sieve, oversize returns corase grind, mineral aggregate under the sieve is implemented high intensity magnetic separation and is thrown tail, and mainly skim magnetic garnet and other magnetic mineral enter white tungsten normal temperature flotation after the nonmagnetic mineral fine grinding, the concentrate of roughly selecting acquisition carries out a spoken parts in an opera tungsten again and heats selectedly, obtains white tungsten fine ore; Throw the tail magnetic concentrate and also implement normal temperature flotation one, the chats that this road floatingly selects is incorporated into and is carried out fine grinding in the nonmagnetic scheelite;
Described high intensity magnetic separation is thrown tail: the low grade white tungsten raw ore returns corase grind on the sieve after roughly grinding the screening of 200-250 μ m reciprocating sieve, the undersize stage material obtains magnetic tailing and magnetic concentrate under 5000～10000Gs magnetic induction intensity;
Magnetic concentrate flotation: calculate to the ore deposit by raw ore per ton, in magnetic concentrate, add adjusting agent sodium carbonate 300～700 grams, waterglass 500～1500 grams; Collecting agent enuatrol 100～200 gram, do roughly select for 1 time, scan for 1～2 time, 1～2 time selected, obtain chats and mine tailing;
White tungsten normal temperature is roughly selected: calculate to the ore deposit by raw ore per ton, add adjusting agent sodium carbonate 300～800 grams, waterglass 500～2500 grams; Collecting agent enuatrol 100～300 gram, do roughly select for 1 time, scan for 2～3 times, 2～3 times selected, obtain white tungsten rough concentrate and mine tailing;
White tungsten is heated selected: white tungsten rough concentrate is concentrated into 65～85% concentration, calculate to the ore deposit by raw ore per ton, add waterglass 300～1500 grams, heat to 85 ℃～100 ℃ the insulation and stirred 50～100 minutes, flotation obtains white tungsten fine ore and the cleaner tailings of heating, and the cleaner tailings of heating is back to white tungsten normal temperature and roughly selects operation.
2. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 5000Gs magnetic induction intensity.
3. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 6000Gs magnetic induction intensity.
4. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 7000Gs magnetic induction intensity.
5. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 8000Gs magnetic induction intensity.
6. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 9000Gs magnetic induction intensity.
7. according to a kind of white tungsten beneficiation method claimed in claim 1, it is characterized in that: the undersize stage material that high intensity magnetic separation is thrown in the tail process obtains magnetic tailing and magnetic concentrate under 10000Gs magnetic induction intensity.
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| CN103691548A (en) * | 2013-12-11 | 2014-04-02 | 广西大学 | Method for recovering micro-fine particle white tungsten |
| CN104475264A (en) * | 2014-11-26 | 2015-04-01 | 广东省工业技术研究院(广州有色金属研究院) | Scheelite beneficiation method |
| CN104785355A (en) * | 2015-03-24 | 2015-07-22 | 江西理工大学 | Skarn type tungsten ore beneficiation method |
| CN105170335A (en) * | 2015-05-29 | 2015-12-23 | 洛阳栾川钼业集团股份有限公司 | Process for floatation of high-concentration scheelite rough concentrate |
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| CN112275444A (en) * | 2020-10-09 | 2021-01-29 | 湖南瑶岗仙矿业有限责任公司 | Beneficiation process suitable for scheelite |
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| CN104785355A (en) * | 2015-03-24 | 2015-07-22 | 江西理工大学 | Skarn type tungsten ore beneficiation method |
| CN105170335A (en) * | 2015-05-29 | 2015-12-23 | 洛阳栾川钼业集团股份有限公司 | Process for floatation of high-concentration scheelite rough concentrate |
| CN105214849A (en) * | 2015-11-02 | 2016-01-06 | 中南大学 | A kind of beneficiation method improving scheelite concentration process concentrate grade |
| CN106000655A (en) * | 2016-06-08 | 2016-10-12 | 江西理工大学 | Method for selecting scheelite at normal temperature |
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| CN106076600A (en) * | 2016-06-15 | 2016-11-09 | 江西理工大学 | A kind of low-grade refractory processes the beneficiation method of scheelite |
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| CN109092561A (en) * | 2018-08-10 | 2018-12-28 | 湖南柿竹园有色金属有限责任公司 | A kind of room temperature black and white tungsten separating technology |
| CN111266196A (en) * | 2020-03-12 | 2020-06-12 | 江西都昌金鼎钨钼矿业有限公司 | Combined type scheelite collecting agent for sorting ultra-low-grade tungsten and molybdenum ores and sorting and recycling process |
| CN111841826A (en) * | 2020-06-11 | 2020-10-30 | 矿冶科技集团有限公司 | Beneficiation method for high-calcium carbonate type low-grade scheelite |
| CN111841826B (en) * | 2020-06-11 | 2021-12-10 | 矿冶科技集团有限公司 | Beneficiation method for high-calcium carbonate type low-grade scheelite |
| CN111841871A (en) * | 2020-06-24 | 2020-10-30 | 紫金矿业集团股份有限公司 | Beneficiation method for low-grade tungsten ore |
| CN112275444A (en) * | 2020-10-09 | 2021-01-29 | 湖南瑶岗仙矿业有限责任公司 | Beneficiation process suitable for scheelite |
| CN112588449A (en) * | 2020-10-15 | 2021-04-02 | 湖南柿竹园有色金属有限责任公司 | Method for controlling scheelite roughing and heating selection tailing running |
| CN114011578A (en) * | 2021-12-14 | 2022-02-08 | 湖南柿竹园有色金属有限责任公司 | Method for reducing sulfur content in scheelite concentrate |
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