CN108525843A - Utilize the method for difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder - Google Patents
Utilize the method for difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder Download PDFInfo
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- CN108525843A CN108525843A CN201810353218.3A CN201810353218A CN108525843A CN 108525843 A CN108525843 A CN 108525843A CN 201810353218 A CN201810353218 A CN 201810353218A CN 108525843 A CN108525843 A CN 108525843A
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/52—Mechanical processing of waste for the recovery of materials, e.g. crushing, shredding, separation or disassembly
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Abstract
The present invention discloses a kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder, and using difficult mine solid waste as raw material, the difficult mine solid waste is containing micro (Ta, Nb)2O5, lepidolite, feldspar valuable component material, it is recycled including tantalum-niobium concentrate, feldspar powder and lepidolite, the tantalum-niobium concentrate recycling is by difficult mine solid waste raw material using weak magnetic, middle magnetic, strong magnetic tandem process separation scum, magnetic mineral and non magnetic ore, influence of the iron mineral to tantalum niobium concentrate gravity treatment is excluded, is tantalum niobium concentrate barren rock raw material；Tantalum niobium concentrate barren rock raw material is classified using the flow and method of stage grinding-stage grading, coarse grain enters ball mill ore grinding, reinforcing classification is carried out to fine fraction using high frequency vibrating fine screen, is made as tantalum-niobium concentrate and tailing as the feldspar and lepidolite mixture of iron content and the weak magnetic impurity of tantalum niobium.Its is simple for process, efficient, economic technology benefit is apparent, and the mineral resources such as tantalum niobium product recovery rate is high.
Description
Technical field：
The present invention relates to a kind of from difficult mine solid waste recycles the sides of the multi minerals materials such as the mines such as tantalum niobium, lepidolite
Method, especially a kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder.
Background technology：
China is global barren rock and the maximum country of tailing volume of cargo in storage, and the total yield of metal ore mining mine barren rock is within 2013
49.47 hundred million tons, the stockpiling total amount of 16.49 hundred million tons of tailing yield, tailing and barren rock is more than 61,000,000,000 tons.With middle rich ore
And the tantalum niobium concentrate stone easily picked up is constantly reduced, a large amount of low-grade, complicated difficult choosing surface mines, abandoned mine just gradually increase.Therefore, high
Effect exploitation, comprehensively utilize this kind of difficult solid waste of mountain containing tantalum niobium concentrate resource have become China tantalum niobium lithium, feldspar industry development when business
It is anxious.
Since tantalum metal has excellent heat conduction, conduction, corrosion resistance, ductility is good, fusing point is high, chemical stability
Other good and certain special natures, make it be industrially widely used in metallurgy, electronics, chemical industry, aerospace etc..World's tantalum powder,
The demand of tantalum wire is about with 10% speed cumulative year after year.Tantalum-niobium concentrate 125 is produced in Shu Pintan states of China, current country mine per year
Ton or so, and it is domestic currently without independent niobium minerals, and the production of niobium is the association output from tantalum ore.Domestic tantalum-niobium smelt
Enterprise and Ta product yield are converted into about 800 tons of metal tantalum, and 90% or more raw material is from external import, and the notch of niobium is more
Greatly.It is included in " resource of incentive exploitation " by the tantalum niobium strategic resources important as China, country.Lithium has high ratio
Heat and conductivity, its density are 0.53 gram per centimeters3, it is metal most light in nature.Mine containing lithium with industrial value
Object mainly has spodumene, lepidolite, petalite etc..The content of lithium is not counting few in seawater, and gross reserves is up to 260,000,000,000 tons, unfortunately
Concentration is too small, refines tangible difficult.Lithium is mainly used as the thickener of lubricating grease in the form of lithium stearate；Lithiumation object is for ceramics
In product, to play the role of cosolvent；Also it is used for making deoxidier or antichlor in metallurgical industry.Lithium ion battery is high energy
Storage medium, it is derivative to have driven flourishing for the corporate business such as lithium mine, lithium carbonate due to the high speed development of lithium ion battery.
The ore dressing recycling of tantalum niobium lithium ore mostly uses joint process, and the technological process that ore type difference uses also is not quite similar.
If Australian Green's Buss tantalum ore is using the electric combined process flow of weight-magnetic-, my Brazilian gram Sa carbonatite pyrochlore ore mining magnetic-
Floating-leaching combined process flow, Canadian Ni Abeike carbonatites pyrochlore ore mining flotation-flotation combined flow of magnetic separation-leaching-,
The Bayan Obo tantalum Biobium rare-earth ore mining in packet header is recycled with flotation-magnetic separation combined process flow.
Feld Spar in Yichun Guimaraesite Mine is the granite of an albitization-greisenization-lepidolite containing tantalum, niobium, lithium, rubidium, caesium, beryllium
It is the main columite-tantalite ore base in China etc. the large ore deposit of a variety of rare metals.Tantalum niobium concentrate object mainly have rich manganese niobium-tantalum ore,
Microlite contains thoreaulite, and lithium, rubidium, cesium mineral mainly have lepidolite, berryllium mineral mainly to have beryl.Ore grinding workshop section uses one section
The flow that rod milling and high frequency vibrating fine screen are closed circuit, two sections of open circuit ball millings, mixed middlings are regrinded.Tantalum niobium mineral processing production uses wet type magnetic
Choosing-gravity separation technology, sludge is through rotary screw chute roughing, table concentration, and lepidolite in Ta Nb tailings is recycled in flotation and lithium is long
Stone.
But China tantalum niobium minerals grade is low, and more metal intergrowth mineral beds are more, and complicated components, tantalum niobium concentrate object disseminated grain size is thin, choosing
The mine rate of recovery is relatively low, and the tantalum niobium concentrate object of fine mud grade -0.037mm is recycled using existing reselecting method, and recovery difficult is big, returns
Yield is low, and waste is serious.There is also more available in the tantalum niobium barren rock after the exploitation recycling to tantalum niobium concentrate object simultaneously
Mineral resources, be not recycled and made waste lose such as lithium feldspar and lepidolite powder, cannot recycle.
Also it is not the method that these micro tantalum pentoxides, niobium pentaoxide extraction are separated in tantalum niobium concentrate barren rock
Very much, existing method extraction and application rate is low.Such as Yichuan tantalum niobium concentrate area area reach 7km2, proved reserves, 1.85 tons of tantalum,
1.49 tons of niobium, 75.22 ten thousand tons of lithium, 40.17 ten thousand tons of rubidium, 5.43 ten thousand tons of caesium, belong to albite, lepidolite granite type containing tantalum, niobium,
The large-scale ore body of a variety of rare metals such as lithium, rubidium, Ta -Nb industry reserves account for about 44.3% that the whole nation is verified, and mine exploitation is often produced per year
Raw 400,000 tons or so of tantalum niobium concentrate country rock, horsestone, lean ore and stripping barren rock etc., these barren rocks claim " black-spot ores " in local mining area.
Other than minority is for filling out hole, paving the way, majority is not comprehensively utilized these barren rocks.Ten million ton of cumulative number, above-mentioned
These tantalum niobium concentrate barren rocks in Ta2O5<0.01%, Nb2O5<0.005%, production-grade is not achieved, is used as abandoned mine always, at barren rock
Reason, waste of resource not only influences the exploitation of other high-quality mineral reserve, but also occupies mountainous region, and brings serious danger to surrounding enviroment
Evil, constitute a threat to the security of the lives and property of the periphery people, from tantalum niobium concentrate barren rock recycle tantalum-niobium concentrate, lepidolite powder and
Lithium feldspar powder may be implemented to turn waste into wealth.Therefore, Efficient Development, this kind of difficult solid waste of mountain containing tantalum niobium concentrate resource of comprehensive utilization be
At the task of top priority of China tantalum niobium lithium, feldspar industry development.
Difference is containing the distinct of lithium ore, and beneficiation method also difference, there are many sort lithium in industry at present
The method of ore, such as sorting, floatation, magnetic method, hot size degradation, method of chemical treatment, heavy suspension beneficiating method and joint choosing
Mine method etc..
（1）Sorting.The method that original ore size is relatively thick, preferably picking can be used containing lithium ore in crystallization is sorted, and product are obtained
The higher concentrate product in position.This method needs to consume a large amount of labours.（2）Floatation.The method is current most common lithium mine
Stone beneficiation method, the lithium ore of the especially particulate dissemination type containing lithium ore with certain industrial value, can be used this method
It is sorted.（3）Magnetic method.Spodumene, two kinds of zinnwaldite have very weak paramagnetism containing lithium minerals, the method that can use magnetic separation
Sorted or removed the magnetic impurity in mineral spirits mineral products.（4）Hot size degradation.But also very for the hot size degradation performance of gangue mineral
Good ore is poor using this method effect, and ore forms sorting for preferable suitable this method of spodumene mine.（5）At chemistry
Logos.Mostly use the chemical method from extracting lithium from salt lake brine, in the form of natural magnesium lithium existing for brine lithium resource it is available heavy
The method in shallow lake is extracted.（6）Heavy suspension beneficiating method.Relatively due to the density of most of lithium minerals and common gangue mineral,
The method is carried out based on the density variation of spodumene and gangue, the smaller gained concentrate product matter of suspension viscosity of same proportion
Amount is higher.（7）Beneficiation combined method method.Such as the combined mineral dressing technology of flotation and gravity treatment, flotation and chemically treated combined mineral dressing technology
And three kinds of magnetic separation, gravity treatment, flotation united ore-dressing techniques of beneficiation method etc..The lepidolite ore now exploited belongs to particulate mostly
Embedding cloth type, for such mineral, it is all made of the method processing of flotation both at home and abroad, due to the foliaceous or flakey collection of lepidolite
Fit special shape, which exists, determines its preferable floatability.
The purification by mineral method of feldspar includes mainly magnetic separation, flotation, acid leaching process and its combined process flow.Feldspar purifying technique
Be exactly the impurity removal process of feldspar, feldspar generally with quartz, mica mineral, calcite, clay mineral and rutile symbiosis.And iron
Existence form there are mainly two types of situation.Common purification by mineral technique is as follows：
（1）Floatation process.（2）Using high intensity magnetic separation process.（3）The feldspar ore of feldspathic placer or weathered granite output, can be with
The impurity such as method removing clay therein, mica, thin mud using washup, feldspar ore its Fe203 content reduction after washup
, improve the content of potassium and sodium.China tantalum niobium lithium resource grade is low, complicated components, disseminated grain size are thin.Ore-dressing technique mostly uses rank
The method of section ore grinding stage grading, roughing generally uses gravity treatment, selected then gravity treatment, magnetic separation, flotation, electric separation etc. to be used to combine work
Skill, complex process, long flow path, recovery rate in ore-dressing are low.Therefore it is badly in need of reinforcing the tackling of key scientific and technical problems that hardly possible selects tantalum niobium lithium resource, research has
Targetedly, reasonable for structure and industrial applicable beneficiation new process.Simultaneously as the crisp easy argillization of tantalum niobium concentrate physical property, needs to carry out
The research of selective milling technology and equipment, the research and development of new and effective preparation equipment are beneficial to improve tantalum-niobium concentrate grade and return
Yield.Flotation is that lepidolite, spectra detach maximally efficient method, currently used floating agent such as oleic acid, although
Collecting ability is strong, but poor selectivity, for this purpose, as hardly possible selects tantalum niobium lithium resource to develop the reinforcement of dynamics, how to develop collecting ability
By force, good, nontoxic, the cheap Novel lepidolite high-efficient collecting agent of selectivity by be tantalum niobium lithium resource Oxidized copper ores a weight
Want direction.
For this purpose, the research and development of difficult tantalum niobium concentrate mountain solid waste cleaning recycling tantalum niobium lithium and feldspar purification key technology seem particularly
It is important, so that large-scale mineral products base solid waste resource utilization is improved significantly, to pushing the complicated low-grade polymetallic ore mountain in China
Solid waste comprehensive utilization of resources has a very important significance.Meanwhile promoting ecological environmental protection, it reduces solid waste and accounts for
A large amount of soils drive the promotion of China's mining industry overall technology level, promote regional economy, society, harmonious development
Etc. will all play an important role.The level of comprehensive utilization of China's similar metal Mineral resource can be increased substantially, alleviate gold
Belong to the situation of mineral resources supply and demand anxiety, and reduce the environmental pollution during resources development and utilization, realizes sustainable development.
Therefore, develop it is a kind of it is economical, efficiently, the difficult mine solid waste recycling tantalum niobium of the utilization of environmental protection, lepidolite and
The new method of feldspar powder.To be provided to recycling tantalum niobium and other lepidolites and feldspar fine ore in difficult mine solid waste and barren rock
Source realizes comprehensive utilization, turns waste into wealth.
Invention content：
The present invention provides a kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder, with difficult
Mine solid waste object is raw material, and the difficult mine solid waste is containing micro (Ta, Nb)2O5, lepidolite, feldspar valuable component
Material, including tantalum-niobium concentrate, feldspar powder and lepidolite recycling, provide a kind of removal tantalum niobium concentrate barren rock simple for process, efficient
The recycling tantalum niobium of middle magnetic impurity, the method for lepidolite and feldspar powder.Its economic technology benefit is apparent, the production of the mineral resources such as tantalum niobium
The product rate of recovery is high.
A kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder of the present invention, with difficult
Mine solid waste object is raw material, and the difficult mine solid waste is containing micro (Ta, Nb)2O5, lepidolite, feldspar valuable component
Material, including tantalum-niobium concentrate, feldspar powder and lepidolite recycling, the tantalum-niobium concentrate recycling are by difficult mine solid waste original
Material is connected removal of impurities-weight-magnetic combined sorting tantalum niobium using strong magnetic in weak, using weak magnetic, middle magnetic, strong magnetic tandem process detach scum,
Magnetic mineral and non magnetic ore exclude influence of the iron mineral to tantalum niobium concentrate gravity treatment, are tantalum niobium concentrate barren rock raw material；By tantalum niobium concentrate
Barren rock raw material is classified using the flow and method of stage grinding-stage grading, and coarse grain enters ball mill ore grinding, using high frequency
Vibrating fine screen carries out reinforcing classification to fine fraction, be made as feldspar that tantalum-niobium concentrate and tailing are iron content and the weak magnetic impurity of tantalum niobium and
Lepidolite mixture.
Preferably, be the stage grading be based on different minerals granularity and difference of specific gravity in barren rock, by gravity classification case,
The use in conjunction of spiral chute, shaking table and paving cloth chute carries out tantalum niobium concentrate gravity treatment to tantalum niobium concentrate barren rock raw material, and tantalum-niobium concentrate is made.
Preferably, be feldspar powder recycling it is to adopt iron content and the weak magnetic impurity feldspar of tantalum niobium and lepidolite mixture
Control mixing material granularity with high frequency vibrating fine screen, and using in high gradient, the removal of impurities of strong magnetomechanical two stages of magnetic separation and high gradient it is two sections strong
Magnetic recycles tantalum niobium, and multistage concentration removes de-iron and weak magnetic impurity, recycles and fine feldspar powder and tail residues containing lepidolite are made.
Further, be the difficult mine solid waste be containing（Ta, Nb）2O5<0.019%, Li2O is 0.5-1.0%,
K2O is 4-4.5%, Na2The solid waste raw material of O4-4.5%.
Further, before being the weak middle magnetic separator, by difficult mine solid waste ore carry out ore grinding screening or
Ball milling, then sieved by high frequency shale shaker, it is classified by spiral classifier after screening, corresponding magnetic separation is fed by different granularities
Machine carries out iron removal by magnetic separation.
Preferably, be in the high gradient, strong magnetomechanical two stages of magnetic separation be using in vertical ring pulsating high gradient, strong magnetomechanical two
Stages of magnetic separation, which is strengthened, removes iron and weak magnetic impurity.
Preferably, it is the lepidolite recycling, in the case where pH is neutrallty condition, by lepidolite mixture and/or contains lepidolite
Tail residues are that raw material is added lepidolite hybrid collector and carries out flotation lepidolite, control the lepidolite hybrid collector be it is cloudy,
The mixing of cation-collecting agent and amine collector.
Further, it is to control lepidolite hybrid collector addition as 500-650g/t；The anionic collector is
Enuatrol or potassium oleate, the cation-collecting agent are dodecyloxy propylamine or dodecyl fatty acid amide；The amine
Collecting agent is coco amine.
It is furthermore preferred that being in the vertical ring pulsating high gradient, strong magnetomechanical is that specifications and models are SLon-1500, model respectively
Magnetic magnetic separation in being carried out for 1T grades of pulsating high gradient magnetic separator with vertical ring, separation magnetism and non magnetic ore, reduce titanium, iron, manganese magnetic
Property mineral；1.3T grades of pulsating high gradient magnetic separator with vertical ring of model carry out magnetic separator, further separation magnetism and non magnetic mine
Object reduces titanium, iron, manganese magnetism and non magnetic ore；Control the dielectric rod that magnetic medium uses Φ 1.5mm.
The present invention utilizes the method for difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder, the advantageous effect of generation：
Contain first, the present invention works as selected barren rock in average milling ore（Ta, Nb）2O5 0.019%、Li2O 0.31%、K2O
4.37%、 Na2Under the conditions of O 4.12%, by the method for the invention, it can prepare and contain（Ta, Nb）2O520%, the rate of recovery 30% with
On tantalum-niobium concentrate, contain Li2O 3.5%, 50% or more the rate of recovery lepidolite concentrate and contain Fe 2O3 It is less than 0.1%, whiteness
60% feldspar concentrate realizes that tantalum niobium barren rock integrally cleans recycling, the full reuse of waste water, no tailing and discharge of wastewater.
Second is that the present invention be directed to micro (Ta, Nb) in complicated difficult tantalum niobium concentrate solid waste2O5, lepidolite, feldspar etc. have
Valence component carries out high-efficiency cleaning recycling and utilizes, and technological break-through extremely low-grade valuable resource of the invention is difficult to effective recycling
Bottleneck, 100% can recycle handled barren rock tailing, resource utilization can be improved, reduce barren rock tailings impoundment, reduce
Floor space reduces environmental pollution, and substantially reduces the discharge of tailing, for society new job is provided, have save resource,
Energy-saving and emission-reduction, environmental-friendly social effect, and will effectively push that China is rare, non-ferrous metal industry barren rock tailing resource comprehensive
The scientific and technological progress and sustainable development recycled and utilized, to ensure that national resources security and national economy healthy and sustainable development are made
Contribution.The present invention is also pioneering to recycle tantalum niobium lithium and purification feldspar powder new method using the cleaning of tantalum niobium solid waste.For tantalum niobium barren rock group
It is point complicated, disseminated grain size is irregular, argillization is serious, the problems such as being difficult to detach, the present invention is using " strong magnetic series connection removal of impurities-weight magnetic in weak
The method for sorting tantalum niobium-FLOTATION SEPARATION lepidolite and feldspar, realizes tantalum niobium barren rock recycled in its entirety, the full reuse of waste water, no tailing and
Discharge of wastewater.For the weak magnetic impurity such as iron and tantalum niobium, the unserviceable problem of feldspar is contained in solid waste raw material, the present invention uses
High frequency vibrating fine screen provides reasonable granularity, in high gradient, the removal of impurities of strong magnetomechanical two stages of magnetic separation, the two sections strong magnetic recycling tantalum niobium of high gradient,
Multistage concentration is improving feldspar quality simultaneously, is strengthening the recycling of tantalum niobium and fine feldspar powder.
Third, the present invention cooperates with flotation lepidolite using anionic and cationic collectors.Argillization is serious, single when for lepidolite flotation
The problems such as equipment and pipeline corrosion is serious under amine collector poor selectivity, strong acid, screen bedding-in lepidolite collecting agent, with coco amine
Lepidolite is floated in combination, realizes that lepidolite is efficiently separated with feldspar；But it is lacked there are more for the lepidolite in flotation barren rock, tailing
It falls into：Make that collecting agent flotation lepidolite is selectively poor, and a part of feldspar, quartz mineral are with lepidolite mineral using single coco amine
It floats together, lepidolite concentrate quality is caused to decline；On the other hand, barren rock, tailing weathering, argillization are serious, and single coco amine is made
A large amount of thin mud gangues are unable to get effective inhibition when collecting agent, further result in lepidolite concentrate grade and are difficult to improve；Select lithium cloud
Strong acid technique is used when female（PH ＜ 4）, a large amount of sulfuric acid need to be added, cause pipeline, equipment seriously corroded, while increasing and being produced into
This.Therefore, for argillization is serious when lepidolite flotation in barren rock, the single amine collector selection poor performance of tradition, strong acid media
The problem that equipment and pipeline corrosion is serious, sorting index is not high, the present invention use more anions and canons collecting agents, are combined with coco amine
Floating lepidolite realizes that lepidolite is efficiently separated with feldspar, improves value-added content of product.
Fourth, the processing lithium solid waste high efficiente callback tantalum niobium of niobium containing tantalum and purification feldspar powder method and Applied D emonstration are for complicated difficult
The valuable components such as micro (Ta, Nb) 2O5, lepidolite, feldspar carry out efficiently whole cleaning recycling and utilize in the lithium solid waste of niobium containing tantalum,
It is extremely low-grade valuable resource high-efficiency cleaning using the difficult lithium of niobium containing tantalum solid waste high efficiente callback tantalum niobium and purification feldspar powder method
It recycles to generate and has big economic and social profit.Magnetic impurity be the comprehensive reutilization of tantalum niobium concentrate barren rock or tailings stone most
Big influence factor, application through the invention, magnetic impurity are able to efficiently separate, remove；After magnetic separation removal, combine " magnetic current
Body separation-gravity treatment-flotation " technological process obtains the production of the tantalum niobium concentrates resources such as lithium feldspar powder, lepidolite concentrate powder, tantalum-niobium concentrate powder
The content of the mineral products of product, the ferrotianium manganese magnetic impurity of the mineral products of main tantalum niobium concentrate resource product is reduced to<0.1%, it is far above
It is of the same trade horizontal.
Magnetic separation recovery method using the present invention improves 200 tons or more, production cost daily compared with prior art mine treating capacity
3-5 members/t raw ores are reduced, increase the millions of members of economic benefit in year.
The present invention process it is simple, beneficiation cost is low, tantalum niobium tcrude ore can not only be extracted sub-elect it is a variety of
Mineral material solves rejected ore and brings serious harm, and the security of the lives and property to the periphery people to surrounding enviroment
Constitute a threat to problem, reaches 85% or more, so that the several hundred million tons of tantalum niobium concentrate barren rock solid waste that China generates is turned waste into wealth, has
Has big economic and social benefit.
Specific implementation mode：With reference to embodiment to further detailed description of the invention.
Embodiment of the present invention is the difficult mine solid waste and Ta Nb tailings stone and tantalum niobium abandoned mine with Feld Spar in Yichun Guimaraesite Mine
Stone is raw material, difficult mine solid waste of the present invention be raw material, the difficult mine solid waste be containing it is micro (Ta,
Nb)2O5, lepidolite, feldspar valuable component material, namely the object implemented is that Feld Spar in Yichun Guimaraesite Mine is removed in recovery process
The low-grade ettles such as tailing, tailings after side slope mine out, surface mine, barren rock, horsestone, smelting.In following manner not
Illustrate that the device that place uses is art methods and device.
A kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder of the present invention, is with difficulty
Processing mine solid waste object is raw material, and the difficult mine solid waste is containing micro (Ta, Nb)2O5, lepidolite, feldspar it is valuable
Component materials, including tantalum-niobium concentrate, feldspar powder and lepidolite recycling, the tantalum-niobium concentrate recycling is by difficult mine solid waste
Raw material is connected removal of impurities-weight-magnetic combined sorting tantalum niobium using strong magnetic in weak, using weak magnetic, middle magnetic, strong magnetic tandem process separation iron
Slag, magnetic mineral and non magnetic ore exclude influence of the iron mineral to tantalum niobium concentrate gravity treatment, are tantalum niobium concentrate barren rock raw material；By tantalum
Niobium minerals barren rock raw material is classified using the flow and method of stage grinding-stage grading, and coarse grain enters ball mill ore grinding, is used
High frequency vibrating fine screen carries out reinforcing classification to fine fraction, is made as tantalum-niobium concentrate and tailing as the length of iron content and the weak magnetic impurity of tantalum niobium
Stone and lepidolite mixture.The preferably described stage grading will be weighed based on different minerals granularity and difference of specific gravity in barren rock
The use in conjunction that power is classified case, spiral chute, shaking table and paving cloth chute carries out tantalum niobium concentrate gravity treatment to tantalum niobium concentrate barren rock raw material, is made
Tantalum-niobium concentrate.
Before weak middle magnetic separator of the present invention, difficult mine solid waste ore is subjected to ore grinding screening or ball milling,
Sieved by high frequency shale shaker, be classified by spiral classifier after screening again, by different granularities feed corresponding magnetic separator into
Row iron removal by magnetic separation.
The feldspar powder recycling is by iron content and the weak magnetic impurity feldspar of tantalum niobium and lepidolite mixture, using high-frequency vibration
Dusting cover control mixing material granularity, and using in high gradient, the removal of impurities of strong magnetomechanical two stages of magnetic separation and the two sections strong magnetic recycling tantalum niobium of high gradient,
Be using in vertical ring pulsating high gradient, strong magnetomechanical two stages of magnetic separation strengthens and removes iron and weak magnetic impurity.Multistage concentration, except de-iron and weak
Magnetic impurity recycles and fine feldspar powder and tail residues containing lepidolite is made.
Magnetic concentration equipment is used using the SLon-1500 produced by certain company, 1T grades of model in the high gradient of the present invention
Pulsating high gradient magnetic separator with vertical ring carry out the middle magnetic magnetic separation of high gradient, separation is magnetic and non magnetic ore, reduces titanium, iron, manganese
Deng magnetic with containing interference of the non magnetic ores such as tantalum, the microlite of niobium, pyrochlore in re-selection procedure, mitigate magnetic mineral to cloud
Female, feldspar concentrate quality influence；
And the magnetic separator of the high gradient：The vertical ring arteries and veins of 1.3T grades of SLon-1500 models produced using certain commercially available company
Dynamic high gradient magnetic separator progress magnetic separator, further separation magnetism and non magnetic ore, reduce the magnetism such as titanium, iron, manganese and contain
Interference of the non magnetic ores such as tantalum, the microlite of niobium, pyrochlore in re-selection procedure mitigates magnetic mineral to mica, feldspar essence
The influence of mine quality；Control the dielectric rod that magnetic medium uses Φ 1.5mm.
During magnetic separation, control the present invention is the present invention to mine environment：It is 30% that ore pulp, which designs effluent concentration, mill
Mine fineness -0.084mm i.e. 200 mesh>70%, or it is 75t/ hours or more to give mine efficiency, i.e. 1200t/d.
Embodiment
In the embodiment of the present invention difficult mine solid waste raw material described in raw material be containing（Ta, Nb）2O5<0.019%, Li2O
For 0.5-1.0%, K2O is 4-4.5%, Na2The solid waste raw material of O4-4.5%；It is carried out by following specific steps：
1, tantalum-niobium concentrate is recycled：By above-mentioned difficult mine solid waste raw material, weak, medium, strong magnetic series connection removal of impurities-weight-magnetic is first used
Combined sorting tantalum-niobium concentrate.To containing tantalum niobium lithium solid waste complicated components, valuable component tantalum niobium lithium content is extremely low, easy argillization, lepidolite,
The disseminated grain sizes such as feldspar, quartz are thick, and tantalum niobium concentrate object disseminated grain size is uneven and based on particulate, for this to above-mentioned tantalum niobium concentrate
Barren rock raw material is classified using the flow and method of stage grinding-stage grading, and coarse grain feeds ball mill ore grinding, so-called coarse grain
It is the generally acknowledged coarse grain raw material granularity grain size in industry, reinforcing classification is carried out to fine fraction using high frequency vibrating fine screen；Based on useless
Different minerals granularity and difference of specific gravity in stone open gravity classification case, spiral chute, shaking table and the use in conjunction for spreading cloth chute
Tantalum niobium concentrate gravity treatment is opened up, is made as tantalum-niobium concentrate and tailing as the feldspar and lepidolite mixture of iron content and the weak magnetic impurity of tantalum niobium.From
And improve tantalum niobium concentrate object and lepidolite, the separating effect of feldspar ore；Based on different minerals titanium in tantalum niobium concentrate barren rock tailing resource,
The magnetic contrast of iron, tantalum niobium oxide uses weak magnetic, middle magnetic, strong magnetic tandem process separation scum, magnetic mineral and non magnetic mine
Object excludes influence of the iron mineral to tantalum niobium concentrate gravity treatment, reduces the shadow to lepidolite, feldspar concentrate quality such as impurity iron, titanium, manganese
Ring, mitigate interfering with each other for magnetic mineral and non magnetic ore gravity treatment, to realize the impure minerals such as ferrotitanium manganese, tantalum-niobium concentrate,
Lepidolite and feldspar powder mineral efficiently separate.
2, feldspar powder is recycled, tantalum niobium purifying scrap feldspar powder will be contained, i.e., by upper step by iron content and the weak magnetic impurity feldspar of tantalum niobium
With lepidolite mixture；In this part weak magnetic tailing essential mineral be potassium albite, also contain have an impact feldspathic amount tantalum niobium,
The secondary pig iron, base iron and iron-containing weak magnetic mineral, therefore and can not utilize.It is now to make full use of this part resource, now will
Iron content and the weak magnetic impurity feldspar of tantalum niobium and lepidolite mixture；Using the feed particle size of high frequency vibrating fine screen, vertical ring arteries and veins is utilized
It moves in high gradient, strong magnetomechanical two stages of magnetic separation is strengthened except iron, vertical ring two sections of high intensity magnetic separations of pulsating high gradient, i.e. SLon-1500, model
1T grades of pulsating high gradient magnetic separator with vertical ring carries out the middle magnetic magnetic separation of high gradient, the vertical ring pulsation of 1.3T grades of SLon-1500 models
High gradient magnetic separator carries out magnetic separator, multistage concentration, strengthen the weak magnetic impurity such as iron to influencing feldspar quality removal and
The recycling of tantalum niobium and micro-size fraction feldspar recycles feldspar and tantalum niobium as far as possible while effectively improving feldspar ore whiteness, prepares
Obtain feldspar powder product and tail residues containing lepidolite.Assorting room return water fully recovering, the method for the present invention will greatly reduce tail
Mine and discharge of wastewater increase value-added content of product, improve the comprehensive utilization ratio of resource.And the sorting of traditional tantalum niobium concentrate andesine powder
The weak magnetic minerals such as essentially strong magnetic removal iron, titanium sub-elect qualified feldspar powder, then by this part weak magnetic mineral and life
The overflow of thickening cone is all abandoned directly as tailing in production.
（3）Lepidolite recycles, and is cooperateed with using anions and canons collecting agent and floats lepidolite method；Under pH neutrallty conditions, the tune of pH value
Section is using acid or alkali such as hydrochloric acid or sulfuric acid, and alkali is sodium hydroxide solution etc., by lepidolite mixture and/or tailing containing lepidolite
Material be raw material be added lepidolite hybrid collector carry out flotation lepidolite, control the lepidolite hybrid collector be yin, yang from
The mixing of sub- collecting agent and amine collector.Control hybrid collector addition is 500-650g/t；The anionic collector
For enuatrol or potassium oleate, the cation-collecting agent is dodecyloxy propylamine or dodecyl fatty acid amide；The amine
Class collecting agent is coco amine.It can also be added to help in collecting agent and catch agent, described help catches agent as kerosene.It is collecting to help and catch agent addition
The 0.3-0.5Wt% of agent addition.It is prepared into and contains Li23.57% or more O, the lepidolite powder of 50% or more the rate of recovery or lepidolite essence
Miberal powder.
Lepidolite floatation process mostly uses single cation-collecting agent coco amine and makees lepidolite collecting agent at present, is situated between in strong acid
Realize that lepidolite is detached with feldspar in matter, it, can although the technique solves the problems, such as lepidolite-feldspar separation to a certain extent
To obtain lepidolite and feldspar concentrate powder.
The method of the present invention can be by iron content 0.2-0.3%, tantalum niobium 0.018%, feldspar whiteness 35-4 in difficult mine solid waste
In the case of 5%, can get iron content≤0.1%, whiteness >=65%, yield 85-90% feldspar concentrate powder or be feldspar powder, niobium containing tantalum
20% tantalum-niobium concentrate.The present invention cooperates with flotation lepidolite method using anionic and cationic collectors.Under conditions of neutral ph, it uses
Combined capturing and collecting agent LZ-00 cooperates with floating lepidolite with coco amine, realizes that lepidolite is efficiently separated with feldspar.4, serial High-Field is developed
Strong high gradient magnetic separator promotes feldspar quality for removing fine weak magnetism, tantalum niobium impurity；Invention feldspar preparation equipment is used
It is sieved in control, improves ore grinding processing capacity 20~30%；Improve belt vacuum filter filter cloth correction device, adaptive tensioning
The components such as device, washer, avoid filter cloth sideslip, operation adhesive tape slipping, vacuum degree be bad, filter not solid carbon dioxide the problems such as；Invention life
Fisheries water processing cycle feed system, improvement effect reduce cost.Realize tantalum niobium, lithium in complicated difficult mining stripping barren rock
Mica, the synthetical recovery of feldspar powder and anury utilize, and effectively improve resource utilization, substantially reduce Mine Solid Wastes heap
It deposits, there are significant economy, environmental and social benefits.
The present invention has greatly economic benefit and social enviroment protection benefit, the mine after joint magnetic separation process removal magnetic impurity
Value of the product cost.
The method of the present invention, through broken, screening, in order to improve extraction efficiency, material after screening is carried out with ball-milling device
Ball milling activates, and general ball milling activation number picks up hour, and it can be tantalum niobium gravity ore so that tantalum niobium concentrate material is milled to 200 mesh or so
Material, or by Ta Nb tailings and/or tantalum niobium ettle after ore grinding sieves, using wet type permanent magnet low intensity magnetic separation in advance except iron is de-
It is miscellaneous, then through permanent-magnet concentration iron dross removing.Magnetic pole surfaces magnetic field intensity H=6000-26000A/m when controlling magnetic separation, tcrude ore and useless
The specific susceptibility X of stone ore composition granule0>38×10-6cm3/ g is ferromagnetism iron mineral.It is cleaner iron mineral can be removed in this way；So
The method of the present invention carries out sorting removal of impurities successively again afterwards.
Claims (9)
1. a kind of method using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder, with difficult mine solid waste
Object is raw material, and the difficult mine solid waste is containing micro (Ta, Nb)2O5, lepidolite, feldspar valuable component material, including
Tantalum-niobium concentrate, feldspar powder and lepidolite recycling, it is characterized in that tantalum-niobium concentrate recycling is by difficult mine solid waste raw material
It is connected removal of impurities-weight-magnetic combined sorting tantalum niobium using strong magnetic in weak, scum, magnetic is detached using weak magnetic, middle magnetic, strong magnetic tandem process
Property mineral and non magnetic ore, exclude influence of the iron mineral to tantalum niobium concentrate gravity treatment, be tantalum niobium concentrate barren rock raw material；Tantalum niobium concentrate is given up
Stone raw material is classified using the flow and method of stage grinding-stage grading, and coarse grain enters ball mill ore grinding, using high frequency vibrating
Dynamic dusting cover carries out reinforcing classification to fine fraction, is made as tantalum-niobium concentrate and tailing as the feldspar and lithium of iron content and the weak magnetic impurity of tantalum niobium
Mica mixture.
2. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 1
Method slips gravity classification case, spiral it is characterized in that the stage grading is based on different minerals granularity and difference of specific gravity in barren rock
The use in conjunction of slot, shaking table and paving cloth chute carries out tantalum niobium concentrate gravity treatment to tantalum niobium concentrate barren rock raw material, and tantalum-niobium concentrate is made.
3. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 1
Method, it is characterized in that feldspar powder recycling is by iron content and the weak magnetic impurity feldspar of tantalum niobium and lepidolite mixture, using high frequency
Vibrating fine screen control mixing material granularity, and using in high gradient, the removal of impurities of strong magnetomechanical two stages of magnetic separation and the two sections strong magnetic recycling of high gradient
Tantalum niobium, multistage concentration, removes de-iron and weak magnetic impurity, recycles and fine feldspar powder and tail residues containing lepidolite are made.
4. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 1
Method, it is characterized in that the difficult mine solid waste be containing（Ta, Nb）2O5<0.019%, Li2O is 0.5-1.0%, K2O is 4-
4.5%, Na2The solid waste raw material of O4-4.5%.
5. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 1
Difficult mine solid waste ore is carried out ore grinding screening or ball milling, then lead to by method it is characterized in that before the weak middle magnetic separator
High frequency shale shaker screening is crossed, is classified by spiral classifier after screening, feeding corresponding magnetic separator by different granularities carries out magnetic
Blanking iron.
6. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 3
Method, it is characterized in that in the high gradient, strong magnetomechanical two stages of magnetic separation, be using in vertical ring pulsating high gradient, strong magnetomechanical two stages of magnetic separation
Strengthen and removes iron and weak magnetic impurity.
7. according to claim 1 or 3 a kind of using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder
Method, it is characterized in that the lepidolite recycles, in the case where pH is neutrallty condition, by lepidolite mixture and/or tailing containing lepidolite
Material be raw material be added lepidolite hybrid collector carry out flotation lepidolite, control the lepidolite hybrid collector be yin, yang from
The mixing of sub- collecting agent and amine collector.
8. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 4
Method, it is characterized in that control lepidolite hybrid collector addition is 500-650g/t；The anionic collector be enuatrol or
Potassium oleate, the cation-collecting agent are dodecyloxy propylamine or dodecyl fatty acid amide；The amine collector is
Coco amine.
9. a kind of side using difficult mine solid waste recycling tantalum niobium, lepidolite and feldspar powder according to claim 6
Method, it is characterized in that in the vertical ring pulsating high gradient, strong magnetomechanical be respectively specifications and models be SLon-1500,1T grades of model
Magnetic magnetic separation during pulsating high gradient magnetic separator with vertical ring carries out, separation magnetism and non magnetic ore, reduce titanium, iron, manganese magnetic mineral；Type
Number magnetic separators are carried out for 1.3T grade pulsating high gradient magnetic separator with vertical ring, further separation is magnetic and non magnetic ore, reduction titanium,
Iron, manganese magnetism and non magnetic ore；Control the dielectric rod that magnetic medium uses Φ 1.5mm.
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| CN109354031A (en) * | 2018-10-23 | 2019-02-19 | 贺州市骏鑫矿产品有限责任公司 | A kind of production method of potassium feldspar |
| CN111151381A (en) * | 2020-01-08 | 2020-05-15 | 江西科技师范大学 | Preparation method and application of collecting agent for fine lepidolite flotation |
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| CN109107754A (en) * | 2018-11-01 | 2019-01-01 | 中钢集团马鞍山矿山研究院有限公司 | The flotation combined ore-dressing technique of the magnetic-of spodumene |
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| CN111151381A (en) * | 2020-01-08 | 2020-05-15 | 江西科技师范大学 | Preparation method and application of collecting agent for fine lepidolite flotation |
| CN111151381B (en) * | 2020-01-08 | 2021-09-24 | 江西科技师范大学 | Preparation method and application of collecting agent for fine lepidolite flotation |
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| CN111389598A (en) * | 2020-04-03 | 2020-07-10 | 湖南有色金属研究院 | Method for recovering mica and feldspar quartz from rare metal ore dressing tailings |
| CN111389598B (en) * | 2020-04-03 | 2021-09-17 | 湖南有色金属研究院 | Method for recovering mica and feldspar quartz from rare metal ore dressing tailings |
| CN112138849A (en) * | 2020-09-04 | 2020-12-29 | 江西九岭新能源有限公司 | Process method for high-quality recovery of tantalum, niobium and tin by utilizing lithium feldspar transformation mode |
| CN112452532A (en) * | 2020-11-04 | 2021-03-09 | 湖北省地质实验测试中心(国土资源部武汉矿产资源监督检测中心) | Comprehensive recovery process of low-grade fine-grain niobium-tantalum ore |
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| GB2606379A (en) * | 2021-05-06 | 2022-11-09 | British Lithium Ltd | Wet magnetic separation process |
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| CN114178046B (en) * | 2021-12-03 | 2023-09-22 | 中国地质科学院郑州矿产综合利用研究所 | Beneficiation method for pyrochlore |
| CN114870986A (en) * | 2022-05-17 | 2022-08-09 | 江西九岭锂业股份有限公司 | Treatment method of superfine weak-magnetic lithium ore tailings |
| CN114933309A (en) * | 2022-05-25 | 2022-08-23 | 江西博瑞新材料科技有限公司 | Method for extracting enriched lepidolite based on lithium ore pressed tail mud |
| CN114933309B (en) * | 2022-05-25 | 2023-08-25 | 江西博瑞新材料科技有限公司 | Method for extracting and enriching lepidolite based on lithium ore pressed tail mud |
| CN115350806A (en) * | 2022-08-17 | 2022-11-18 | 广东邦普循环科技有限公司 | Method for enriching lithium from lithium clay ore |
| CN115350806B (en) * | 2022-08-17 | 2023-10-17 | 广东邦普循环科技有限公司 | Method for enriching lithium from lithium clay ore |
| CN117101876B (en) * | 2023-10-25 | 2024-02-06 | 赣州有色冶金研究所有限公司 | Combined collector, preparation method thereof and application thereof in lepidolite flotation |
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Application publication date: 20180914 |
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