CN104475339A - Method for comprehensively recovering lead, zinc, lithium, niobium and rubidium from tailings - Google Patents
Method for comprehensively recovering lead, zinc, lithium, niobium and rubidium from tailings Download PDFInfo
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- CN104475339A CN104475339A CN201410757174.2A CN201410757174A CN104475339A CN 104475339 A CN104475339 A CN 104475339A CN 201410757174 A CN201410757174 A CN 201410757174A CN 104475339 A CN104475339 A CN 104475339A
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- lithium
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- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 82
- 239000011701 zinc Substances 0.000 title claims abstract description 82
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 75
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 75
- 229910052758 niobium Inorganic materials 0.000 title claims abstract description 72
- 239000010955 niobium Substances 0.000 title claims abstract description 72
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 title claims abstract description 72
- 229910052701 rubidium Inorganic materials 0.000 title claims abstract description 65
- IGLNJRXAVVLDKE-UHFFFAOYSA-N rubidium atom Chemical compound [Rb] IGLNJRXAVVLDKE-UHFFFAOYSA-N 0.000 title claims abstract description 65
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000012141 concentrate Substances 0.000 claims abstract description 177
- 238000005188 flotation Methods 0.000 claims abstract description 110
- 238000007885 magnetic separation Methods 0.000 claims abstract description 93
- 238000011084 recovery Methods 0.000 claims abstract description 59
- 238000000227 grinding Methods 0.000 claims abstract description 15
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000003756 stirring Methods 0.000 claims description 144
- 239000002516 radical scavenger Substances 0.000 claims description 41
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 40
- 238000004140 cleaning Methods 0.000 claims description 28
- 238000010926 purge Methods 0.000 claims description 25
- CONMNFZLRNYHIQ-UHFFFAOYSA-N 3-methylbutoxymethanedithioic acid Chemical compound CC(C)CCOC(S)=S CONMNFZLRNYHIQ-UHFFFAOYSA-N 0.000 claims description 20
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 claims description 20
- JRBPAEWTRLWTQC-UHFFFAOYSA-N dodecylamine Chemical compound CCCCCCCCCCCCN JRBPAEWTRLWTQC-UHFFFAOYSA-N 0.000 claims description 20
- 235000019353 potassium silicate Nutrition 0.000 claims description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 11
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 10
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- GNVMUORYQLCPJZ-UHFFFAOYSA-M Thiocarbamate Chemical compound NC([S-])=O GNVMUORYQLCPJZ-UHFFFAOYSA-M 0.000 claims description 10
- 229940116901 diethyldithiocarbamate Drugs 0.000 claims description 10
- LMBWSYZSUOEYSN-UHFFFAOYSA-N diethyldithiocarbamic acid Chemical compound CCN(CC)C(S)=S LMBWSYZSUOEYSN-UHFFFAOYSA-N 0.000 claims description 10
- 238000003801 milling Methods 0.000 claims description 10
- CMGLSTYFWSQNEC-UHFFFAOYSA-N o-ethyl n-ethylcarbamothioate Chemical compound CCNC(=S)OCC CMGLSTYFWSQNEC-UHFFFAOYSA-N 0.000 claims description 10
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- 239000003814 drug Substances 0.000 claims description 5
- 238000005192 partition Methods 0.000 claims description 5
- 239000003208 petroleum Substances 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 claims description 5
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 5
- 229910020218 Pb—Zn Inorganic materials 0.000 claims description 3
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract description 13
- 239000011707 mineral Substances 0.000 abstract description 13
- 239000010433 feldspar Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052715 tantalum Inorganic materials 0.000 description 6
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 6
- RHDUVDHGVHBHCL-UHFFFAOYSA-N niobium tantalum Chemical compound [Nb].[Ta] RHDUVDHGVHBHCL-UHFFFAOYSA-N 0.000 description 5
- 230000005484 gravity Effects 0.000 description 4
- 239000010802 sludge Substances 0.000 description 4
- -1 stir 1-2min Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 229910052949 galena Inorganic materials 0.000 description 3
- XCAUINMIESBTBL-UHFFFAOYSA-N lead(ii) sulfide Chemical compound [Pb]=S XCAUINMIESBTBL-UHFFFAOYSA-N 0.000 description 3
- 229910052629 lepidolite Inorganic materials 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000010445 mica Substances 0.000 description 3
- 229910052618 mica group Inorganic materials 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical compound [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 3
- 229910052984 zinc sulfide Inorganic materials 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910052721 tungsten Inorganic materials 0.000 description 2
- 239000010937 tungsten Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052792 caesium Inorganic materials 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000010438 granite Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000031068 symbiosis, encompassing mutualism through parasitism Effects 0.000 description 1
- 229910001656 zinc mineral Inorganic materials 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention provides a method for comprehensively recovering lead, zinc, lithium, niobium and rubidium from tailings, and belongs to the technical field of comprehensive resource utilization. The method comprises the following steps: grading lead-zinc tailings; performing mineral grinding on underflow and performing floatation to recover lead and zinc; performing superconducting magnetic separation on the tailings subjected to overflow and lead-zinc flotation; performing reverse floatation on concentrate subjected to superconducting magnetic separation to recover niobium and zinc; performing desliming on the tailings subjected to superconducting magnetic separation, and performing floatation on the tailings to recover lithium; performing further floatation on the tailings from which lithium is recovered through floatation to recover rubidium. By adopting the method, lead, zinc, lithium, niobium and rubidium can be recovered simultaneously from the tailings, lead-zinc concentrate, lithium concentrate, niobium concentrate and rubidium concentrate are obtained, tailing reclamation is realized, and a recovery process is simple. Through the method, different minerals are recovered step by step by fully utilizing the property differences among different minerals, so that the grades and recovery rates of lead, zinc, lithium, niobium and rubidium are increased, and a novel way is provided for further development and utilization of the existing lead-zinc tailings.
Description
Technical field
The present invention relates to technical field of resource comprehensive utilization, refer to a kind of method of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing especially.
Background technology
In recent years, along with the purposes of rare metal lithium, niobium, rubidium etc. is more and more wider, its economic worth is also more and more higher.The polymetallic ore in somewhere, Anhui is based on the metal mine of plumbous zinc, and association has the rare metals such as lithium, niobium, rubidium.Plumbous zinc has mainly been reclaimed when exploiting in mine, does not reclaim lithium, niobium, rubidium etc.Lead, zinc, lithium, niobium, rubidium also containing certain grade in its Pb-Zn tailings, if do not reclaimed, will cause the significant wastage of resource.
Disclose a kind of method reclaiming tantalum, niobium, lithium in ZL 200910186050.2, process be based on tungsten, tin, tantalum, niobium, have the polymetallic ore of lithium, rubidium, caesium, feldspar etc. concurrently.The method adopts gravity separation technology to reclaim tantalum niobium; Lepidolite concentrate is reclaimed through flotation after gravity tailings desliming; Flotation tailing again through obtaining respectively slightly every thick, deferrization, classification, dehydration, particulate lithium feldspar powder product; All mine tailing merging obtain low-grade feldspar product through press filtration.The method Problems existing is only applicable to the process based on the mineral products of tungsten, tin, tantalum, niobium, and to inapplicable based on the mine tailing of plumbous zinc, and in the product of the method acquisition, the rate of recovery of associated metal is not high.
" certain large-scale tantalum niobium concentrate experiment on Comprehensive Utilization " describes a kind of method reclaiming tantalum, niobium, lithium, process be tantalite-columbite ore, by gravity treatment-magnetic separation-flotation combined flow process, obtain niobium tantalum concentrate, lepidolite concentrate, feldspar concentrate and quartz concentrate.There is limitation equally in the scope of application of the method, better to the mineral products treatment effect containing mica, feldspar and quartz, but for valuable mineral with many metals, particularly have the mineral products treatment effect of suitable content rare metal not good, and there is multiple fractionation, flow process complexity, cost is higher.
" certain weak sodium granite type tantalum niobium concentrate comprehensive utilizating research " describes a kind of method reclaiming tantalum, niobium, process be tantalum niobium concentrate ore.Adopt stage grinding-stage gravity treatment-magnetic reconnection to close technique, reclaim tantalum, niobium.The mineral species of the method sorting is simple, but this technique is not suitable for the tailings glass of complicated ore species.
In sum, at present the method for process rare metal mineral products all can not reach good sorting result for the Pb-Zn tailings of many metals symbiosis, and from flotation tailing the method for comprehensive recovery of lead, zinc, lithium, niobium, rubidium also not economy and facility.
Summary of the invention
The object of the present invention is to provide a kind of method of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from flotation tailing, it can obtain the lead and zinc concentrate of high-recovery, lithium concentrate, niobium concentrate and rubidium concentrate simultaneously.
The concrete technology step of the method is as follows:
(1) classification
Carry out classification with hydrocyclone to mine tailing, partition size accounts for 80-85% for-0.074mm, and the overflow degaussing choosing of classification, underflow removes ore grinding.
(2) ore grinding
Classification underflow in step (1) is carried out ore grinding, and ore milling concentration is 60-72%, and mog-0.074mm accounts for 75-80%.
(3) plumbous zinc flotation
Comprise roughly select, scan for twice with twice selected
A () roughly selects
By the ore milling product concentration adjustment in step (2) to 22-28%, add waterglass 800-1000g/t and calgon 100-200g/t, stir 5-7min; Then add copper sulphate 200-350g/t and plumbi nitras 50-100g/t, stir 3-5min; Add isoamyl xanthate 100-200g/t and diethyldithiocarbamate 50-100g/t again, stir 3-4min; Finally add terpenic oil 30-50g/t, stir 1-2min; Air flotation.Obtain rougher concentration and rougher tailings.
(b) once purging selection
In (a), rougher tailings adds waterglass 200-400g/t, stirs 3-5min; Then add copper sulphate 100-150g/t and plumbi nitras 30-50g/t, stir 3-4min; Add isoamyl xanthate 50-80g/t and diethyldithiocarbamate 20-40g/t again, stir 3-4min; Finally add terpenic oil 15-30g/t, stir 1-2min; Air flotation.Obtain once purging selection concentrate and once purging selection mine tailing, once purging selection concentrate returns to be roughly selected.
C () secondary is scanned
In (b), once purging selection mine tailing adds Z-200 (ethyl thiourethane) 30-50g/t, stirs 3-4min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation.Obtain secondary scavenger concentrate and secondary scans mine tailing, secondary scans mine tailing degaussing choosing, and secondary scavenger concentrate returns once purging selection.
D () is selected
By the rougher concentration in (a) selected 2 times continuously, twice selected does not add medicament, and after stirring 3-4min, direct air flotation, obtains final lead and zinc concentrate.Wherein, primary cleaner tailing returns to be roughly selected, and primary cleaning concentrate carries out recleaning, and recleaning mine tailing returns primary cleaning, and recleaning concentrate is final lead and zinc concentrate.
(4) magnetic separation
Comprise that magnetic separation is roughly selected, magnetic separation is scanned with magnetic separation selected.
A () magnetic separation is roughly selected
Secondary in hydrocyclone overflow in step (1) and step (3) is scanned mine tailing to merge, carry out superconducting magnetic separation, roughly selecting magnetic field intensity is 5.0-5.5T, obtains magnetic separation rougher concentration and magnetic separation rougher tailings.
B () magnetic separation is scanned
The magnetic separation rougher tailings obtained in (a) is carried out magnetic separation scan, magnetic field intensity is 5.5-6.0T, obtains magnetic separation scavenger concentrate and mine tailing is scanned in magnetic separation, and magnetic separation is scanned mine tailing and gone flotation to reclaim lithium.
C () magnetic separation is selected
The magnetic separation scavenger concentrate obtained in the magnetic separation rougher concentration obtained in (a) and (b) is mixed to carry out magnetic separation selected, magnetic field intensity is 4.0-4.5T, obtain the selected concentrate of magnetic separation and magnetic separation cleaner tailings, in magnetic separation cleaner tailings and (b), magnetic separation is scanned mine tailing and is merged and go to select lithium.
(5) reverse flotation reclaims niobium
Comprise roughly select, selected and scan.
Add copper sulphate 100-200g/t in (a) selected concentrate of magnetic separation in step (4), stir 3-4min; Then add hydroximic acid 50-90g/t and isoamyl xanthate 80-140g/t, stir 3-5min; Add terpenic oil 10-20g/t again, stir 1-1.5min; Air flotation.Obtain rougher concentration and rougher tailings.
B () rougher concentration in (a) adds copper sulphate 50-100g/t, stir 2-3min; Then add isoamyl xanthate 40-70g/t and hydroximic acid 30-50g/t, stir 2-3min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation.Obtain selected concentrate (niobium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
Add Z-200 (ethyl thiourethane) 30-50g/t in (c) rougher tailings in (a), stir 3-4min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation.Obtain scavenger concentrate and scan mine tailing (zinc concentrate), scavenger concentrate returns to be roughly selected, and scans the lead and zinc concentrate obtained in mine tailing (zinc concentrate) and step (3) and merges into final lead and zinc concentrate.
(6) lithium is reclaimed in flotation
Comprise desliming, roughly select, selected and scan.
(a) desliming
The desliming of mine tailing hydroclone classification is scanned in the magnetic separation obtained in step (4), and underflow goes flotation, and-0.043mm accounts for the overflow of 78-83% as true tailings, removes Tailings Dam.
B () roughly selects
Regulate concentration to 20-25% cyclone underflow in (a), add sodium carbonate 300-500g/t and waterglass 600-800g/t, stir 3-4min; Add enuatrol 200-300g/t and lauryl amine 50-100g/t again, stir 3-5min; Air flotation.Obtain rougher concentration and rougher tailings.
C () scans
Add enuatrol 100-150g/t and lauryl amine 30-60g/t in rougher tailings in (b), stir 2-4min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scans mine tailing and goes to select rubidium.
D () is selected
Rougher concentration in (b) adds sulfuric acid 200-300g/t, stirs 1-2min, air flotation.Obtain selected concentrate (lithium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
(7) rubidium is reclaimed in flotation
Comprise roughly select, twice selected and scan.
A () roughly selects
Mine tailing of scanning in step (6) adds hydrofluoric acid 100-200g/t and sulfuric acid 200-300g/t, stirs 3-4min; Add lauryl amine 30-50g/t and petroleum sodium sulfonate 100-150g/t again, stir 3-5min; Air flotation.Obtain rougher concentration and rougher tailings.
B () scans
In (a), add sulfuric acid 100-200g/t in rougher tailings, stir 2-3min; Add lauryl amine 20-40g/t again, stir 2-4min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scanning mine tailing is true tailings.
(c) primary cleaning
Rougher concentration in (a) is stirred 1-2min, air flotation.Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing returns to be roughly selected.
(d) recleaning
In (c), add sulfuric acid 80-120g/t in primary cleaning concentrate, stir 1-2min, air flotation.Obtain recleaning concentrate (rubidium concentrate) and recleaning mine tailing, recleaning mine tailing returns primary cleaning.
The lead and zinc concentrate of plumbous grade 18-22%, zinc grade 27-32%, lead recovery 82-85%, zinc recovery 85-88% can be obtained by said method; The lithium concentrate of grade lithium 5.0-5.5%, lithium rate of recovery 70-75%; The niobium concentrate of niobium grade 42-46%, niobium rate of recovery 60-65%; The rubidium concentrate of rubidium grade 3.5-4.5%, rubidium rate of recovery 55-59%.
The beneficial effect of technique scheme of the present invention is as follows:
(1) mine tailing first uses cyclone classification, cyclone overflow (sludge) directly degaussing choosing, avoid the impact of sludge on plumbous zinc floatation process, cyclone underflow removes ore grinding, with wrapped lead minerals and the zinc mineral of dissociating, improve lead, zinc recovery.
(2) superconducting magnetic separation is adopted, first magnetic separation recovery is carried out to marmatite, niobium rutile, columbite, throw except a large amount of sludge, and then magnetic concentrate is carried out reverse flotation recovery niobium and zinc, this reverse flotation process is without the impact of sludge, both improve niobium concentrate grade and the niobium rate of recovery, and reclaimed again the marmatite be not recovered further above, substantially increased the rate of recovery of zinc.
(3) roughly select when lithium is reclaimed in flotation and adopt alkaline ore pulp, improve the rate of recovery containing lepidolite, the acid ore pulp of selected employing, improves the grade of lithium concentrate.
(4) from mine tailing, reclaim lead, zinc, lithium, niobium, rubidium simultaneously, obtain lead and zinc concentrate, lithium concentrate, niobium concentrate and rubidium concentrate, achieve Making Use of Tailings.
Accompanying drawing explanation
Fig. 1 is the process chart of the method for comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing of the present invention
Detailed description of the invention
For making the technical problem to be solved in the present invention, technical scheme and advantage clearly, be described in detail below in conjunction with the accompanying drawings and the specific embodiments.
Embodiment 1
Plumbous grade 0.42% in certain mine tailing, zinc grade 0.89%, grade lithium 0.41%, niobium grade 0.11%, rubidium grade 0.09%, Process mineralogy analysis result shows: plumbous mainly tax with galena is deposited, zinc is mainly composed with zincblende and marmatite and is deposited, lithium is mainly composed and is stored in mica, and mineral mainly columbite and the niobium rutile of niobium, rubidium is mainly composed and is stored in potassic feldspar.By technological process shown in Fig. 1, synthetical recovery is carried out to lead wherein, zinc, lithium, niobium, rubidium.
(1) classification
Carry out classification with hydrocyclone to mine tailing, partition size accounts for 80% for-0.074mm, and overflow degaussing is selected, and underflow removes ore grinding.
(2) ore grinding
Classification underflow in step (1) is carried out ore grinding, and ore milling concentration is 60%, and mog-0.074mm accounts for 75%.
(3) floatation and recovery of lead zinc
A () roughly selects
By the ore milling product concentration adjustment to 22% in step (2), add waterglass 800g/t and calgon 100g/t, stir 5min; Then add copper sulphate 200g/t and plumbi nitras 50g/t, stir 3min; Add isoamyl xanthate 100g/t and diethyldithiocarbamate 50g/t again, stir 3min; Finally add terpenic oil 30g/t, stir 1min; Air flotation.Obtain rougher concentration and rougher tailings.
(b) once purging selection
In (a), rougher tailings adds waterglass 200g/t, stirs 3min; Then add copper sulphate 100g/t and plumbi nitras 30g/t, stir 3min; Add isoamyl xanthate 50g/t and diethyldithiocarbamate 20g/t again, stir 3min; Finally add terpenic oil 15g/t, stir 1min; Air flotation.Obtain once purging selection concentrate and once purging selection mine tailing, once purging selection concentrate returns to be roughly selected.
C () secondary is scanned
In (b), once purging selection mine tailing adds Z-200 (ethyl thiourethane) 30g/t, stirs 3min; Add terpenic oil 5g/t again, stir 1min; Air flotation.Obtain secondary scavenger concentrate and secondary scans mine tailing, secondary scans mine tailing degaussing choosing, and secondary scavenger concentrate returns once purging selection.
D () is selected
By rougher concentration in (a) selected 2 times continuously, twice selected does not add medicament, and primary cleaning stirs air flotation after 3min, and recleaning stirs air flotation after 3min, obtains final lead and zinc concentrate.Wherein, primary cleaner tailing returns to be roughly selected, and primary cleaning concentrate carries out recleaning, and recleaning mine tailing returns primary cleaning, and recleaning concentrate is final lead and zinc concentrate.
(4) magnetic separation-
A () magnetic separation is roughly selected
Secondary in hydrocyclone overflow in step (1) and step (3) is scanned mine tailing to merge, carry out superconducting magnetic separation, roughly selecting magnetic field intensity is 5.0T, obtains magnetic separation rougher concentration and magnetic separation rougher tailings.
B () magnetic separation is scanned
The magnetic separation rougher tailings obtained in (a) is carried out magnetic separation scan, magnetic field intensity is 5.5T, obtains magnetic separation scavenger concentrate and mine tailing is scanned in magnetic separation, and magnetic separation is scanned mine tailing and gone flotation to reclaim lithium.
C () magnetic separation is selected
The magnetic separation scavenger concentrate obtained in the magnetic separation rougher concentration obtained in (a) and (b) is mixed to carry out magnetic separation selected, magnetic field intensity is 4.0T, obtain the selected concentrate of magnetic separation and magnetic separation cleaner tailings, in magnetic separation cleaner tailings and (b), magnetic separation is scanned mine tailing and is merged and go to select lithium.
(5) reverse flotation reclaims niobium
Add copper sulphate 100g/t in (a) selected concentrate of magnetic separation in step (4), stir 3min; Add hydroximic acid 50g/t and isoamyl xanthate 80g/t, stir 3min; Add terpenic oil 10g/t again, stir 1min; Air flotation.Obtain rougher concentration and rougher tailings.
B () rougher concentration in (a) adds copper sulphate 50g/t, stir 2min; Then add isoamyl xanthate 40g/t and hydroximic acid 30g/t, stir 2min; Add terpenic oil 5g/t again, stir 1min; Air flotation.Obtain selected concentrate (niobium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
Add Z-200 (ethyl thiourethane) 30g/t in (c) rougher tailings in (a), stir 3min; Add terpenic oil 5g/t again, stir 1min; Air flotation.Obtain scavenger concentrate and scan mine tailing (zinc concentrate), scavenger concentrate returns to be roughly selected, and scans the lead and zinc concentrate obtained in mine tailing (zinc concentrate) and step (3) and merges into final lead and zinc concentrate.
(6) lithium is reclaimed in flotation
(a) desliming
The desliming of mine tailing hydroclone classification is scanned in the magnetic separation obtained in step (4), and underflow goes flotation, and-0.043mm accounts for the overflow of 78% as true tailings, removes Tailings Dam.
B () roughly selects
Cyclone underflow in (a) is regulated concentration to 20%, adds sodium carbonate 300g/t and waterglass 600g/t, stir 3min; Add enuatrol 200g/t and lauryl amine 50g/t again, stir 3min; Air flotation.Obtain rougher concentration and rougher tailings.
C () scans
Add enuatrol 100g/t and lauryl amine 30g/t in rougher tailings in (b), stir 2min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scans mine tailing and goes to select rubidium.
D () is selected
Rougher concentration in (b) adds sulfuric acid 200g/t, stirs 1min, air flotation.Obtain selected concentrate (lithium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
(7) rubidium is reclaimed in flotation
A () roughly selects
Mine tailing of scanning in step (6) adds hydrofluoric acid 100g/t and sulfuric acid 200g/t, stirs 3min; Add lauryl amine 30g/t and petroleum sodium sulfonate 100g/t again, stir 3min; Air flotation.Obtain rougher concentration and rougher tailings.
B () scans
In (a), add sulfuric acid 100g/t in rougher tailings, stir 2min; Add lauryl amine 20g/t again, stir 2min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scanning mine tailing is true tailings.
(c) primary cleaning
Rougher concentration in (a) is stirred 1min, air flotation.Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing returns to be roughly selected.
(d) recleaning
In (c), add sulfuric acid 80g/t in primary cleaning concentrate, stir 1min, air flotation.Obtain recleaning concentrate (rubidium concentrate) and recleaning mine tailing, recleaning mine tailing returns primary cleaning.
Pass through above-mentioned steps, obtain the lead and zinc concentrate of plumbous grade 18.72%, zinc grade 29.15%, lead recovery 82.26%, zinc recovery 85.13%, the lithium concentrate of grade lithium 5.19%, the lithium rate of recovery 72.14%, the niobium concentrate of niobium grade 42.36%, the niobium rate of recovery 62.04%, the rubidium concentrate of rubidium grade 3.78%, the rubidium rate of recovery 56.45%.
Embodiment 2
Certain mine tailing chemical analysis results is as follows: plumbous grade 0.65%, zinc grade 1.03%, grade lithium 0.52%, niobium grade 0.14%, rubidium grade 0.10%, Process mineralogy analysis result shows, plumbous mainly tax with galena is deposited, and lithium is mainly composed and is stored in mica, and zinc is mainly composed with marmatite and zincblende and deposited, the mineral mainly columbite of niobium, rubidium is mainly composed and is stored in potassic feldspar.By technological process shown in Fig. 1, synthetical recovery is carried out to lead wherein, zinc, lithium, niobium, rubidium.
(1) classification
Carry out classification with hydrocyclone to mine tailing, partition size accounts for 85% for-0.074mm, and overflow degaussing is selected, and underflow removes ore grinding.
(2) ore grinding
Classification underflow in step (1) is carried out ore grinding, and ore milling concentration is 72%, and mog-0.074mm accounts for 80%.
(3) floatation and recovery of lead zinc
A () roughly selects
By the ore milling product concentration adjustment to 28% in step (2), add waterglass 1000g/t and calgon 200g/t, stir 7min; Then add copper sulphate 350g/t and plumbi nitras 100g/t, stir 5min; Add isoamyl xanthate 200g/t and diethyldithiocarbamate 100g/t again, stir 4min; Finally add terpenic oil 50g/t, stir 2min; Air flotation.Obtain rougher concentration and rougher tailings.
(b) once purging selection
In (a), rougher tailings adds waterglass 400g/t, stirs 5min; Then add copper sulphate 150g/t and plumbi nitras 50g/t, stir 4min; Add isoamyl xanthate 80g/t and diethyldithiocarbamate 40g/t again, stir 4min; Finally add terpenic oil 30g/t, stir 2min; Air flotation.Obtain once purging selection concentrate and once purging selection mine tailing, once purging selection concentrate returns to be roughly selected.
C () secondary is scanned
In (b), once purging selection mine tailing adds Z-200 (ethyl thiourethane) 50g/t, stirs 4min; Add terpenic oil 10g/t again, stir 1.5min; Air flotation.Obtain secondary scavenger concentrate and secondary scans mine tailing, secondary scans mine tailing degaussing choosing, and secondary scavenger concentrate returns once purging selection.
D () is selected
By rougher concentration in (a) selected 2 times continuously, twice selected does not add medicament, and primary cleaning stirs air flotation after 4min, and recleaning stirs air flotation after 4min, obtains final lead and zinc concentrate.Wherein, primary cleaner tailing returns to be roughly selected, and primary cleaning concentrate carries out recleaning, and recleaning mine tailing returns primary cleaning, and recleaning concentrate is final lead and zinc concentrate.
(4) magnetic separation-
A () magnetic separation is roughly selected
Secondary in hydrocyclone overflow in step (1) and step (3) is scanned mine tailing to merge, carry out superconducting magnetic separation, roughly selecting magnetic field intensity is 5.5T, obtains magnetic separation rougher concentration and magnetic separation rougher tailings.
B () magnetic separation is scanned
The magnetic separation rougher tailings obtained in (a) is carried out magnetic separation scan, magnetic field intensity is 6.0T, obtains magnetic separation scavenger concentrate and mine tailing is scanned in magnetic separation, and magnetic separation is scanned mine tailing and gone flotation to reclaim lithium.
C () magnetic separation is selected
The magnetic separation scavenger concentrate obtained in the magnetic separation rougher concentration obtained in (a) and (b) is mixed to carry out magnetic separation selected, magnetic field intensity is 4.5T, obtain the selected concentrate of magnetic separation and magnetic separation cleaner tailings, in magnetic separation cleaner tailings and (b), magnetic separation is scanned mine tailing and is merged and go to select lithium.
(5) reverse flotation reclaims niobium
Add copper sulphate 200g/t in (a) selected concentrate of magnetic separation in step (4), stir 4min; Add hydroximic acid 90g/t and isoamyl xanthate 140g/t, stir 5min; Add terpenic oil 20g/t again, stir 1.5min; Air flotation.Obtain rougher concentration and rougher tailings.
B () rougher concentration in (a) adds copper sulphate 100g/t, stir 3min; Then add isoamyl xanthate 70g/t and hydroximic acid 50g/t, stir 3min; Add terpenic oil 10g/t again, stir 1.5min; Air flotation.Obtain selected concentrate (niobium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
Add Z-200 (ethyl thiourethane) 50g/t in (c) rougher tailings in (a), stir 4min; Add terpenic oil 10g/t again, stir 1.5min; Air flotation.Obtain scavenger concentrate and scan mine tailing (zinc concentrate), scavenger concentrate returns to be roughly selected, and scans the lead and zinc concentrate obtained in mine tailing (zinc concentrate) and step (3) and merges into final lead and zinc concentrate.
(6) lithium is reclaimed in flotation
(a) desliming
The desliming of mine tailing hydroclone classification is scanned in the magnetic separation obtained in step (4), and underflow goes flotation, and-0.043mm accounts for the overflow of 83% as true tailings, removes Tailings Dam.
B () roughly selects
Cyclone underflow in (a) is regulated concentration to 25%, adds sodium carbonate 500g/t and waterglass 800g/t, stir 4min; Add enuatrol 300g/t and lauryl amine 100g/t again, stir 5min; Air flotation.Obtain rougher concentration and rougher tailings.
C () scans
Add enuatrol 150g/t and lauryl amine 60g/t in rougher tailings in (b), stir 4min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scans mine tailing and goes to select rubidium.
D () is selected
Rougher concentration in (b) adds sulfuric acid 300g/t, stirs 2min, air flotation.Obtain selected concentrate (lithium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
(7) rubidium is reclaimed in flotation
A () roughly selects
Mine tailing of scanning in step (6) adds hydrofluoric acid 200g/t and sulfuric acid 300g/t, stirs 4min; Add lauryl amine 50g/t and petroleum sodium sulfonate 150g/t again, stir 5min; Air flotation.Obtain rougher concentration and rougher tailings.
B () scans
In (a), add sulfuric acid 200g/t in rougher tailings, stir 3min; Add lauryl amine 40g/t again, stir 4min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scanning mine tailing is true tailings.
(c) primary cleaning
Rougher concentration in (a) is stirred 2min, air flotation.Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing returns to be roughly selected.
(d) recleaning
In (c), add sulfuric acid 120g/t in primary cleaning concentrate, stir 2min, air flotation.Obtain recleaning concentrate (rubidium concentrate) and recleaning mine tailing, recleaning mine tailing returns primary cleaning.
Pass through above-mentioned steps, obtain the lead and zinc concentrate of plumbous grade 19.05%, zinc grade 31.15%, lead recovery 83.04%, zinc recovery 86.27%, the lithium concentrate of grade lithium 5.42%, the lithium rate of recovery 73.18%, the niobium concentrate of niobium grade 44.10%, the niobium rate of recovery 63.82%, the rubidium concentrate of rubidium grade 4.10%, the rubidium rate of recovery 57.14%.
Embodiment 3
Certain mine tailing chemical analysis results is as follows: plumbous grade 0.60%, zinc grade 0.94%, grade lithium 0.49%, niobium grade 0.12%, rubidium grade 0.08%, Process mineralogy analysis result shows, plumbous mainly tax with galena is deposited, and zinc is mainly composed with marmatite and zincblende and deposited, and lithium is mainly composed and is stored in sericite, mineral mainly columbite and the niobium rutile of niobium, rubidium is mainly composed and is stored in potassic feldspar.By technological process shown in Fig. 1, synthetical recovery is carried out to lead wherein, zinc, lithium, niobium, rubidium.
(1) classification
Carry out classification with hydrocyclone to mine tailing, partition size accounts for 82% for-0.074mm, and overflow degaussing is selected, and underflow removes ore grinding.
(2) ore grinding
Classification underflow in step (1) is carried out ore grinding, and ore milling concentration is 70%, and mog-0.074mm accounts for 78%.
(3) floatation and recovery of lead zinc
A () roughly selects
By the ore milling product concentration adjustment to 25% in step (2), add waterglass 900g/t and calgon 130g/t, stir 6min; Then add copper sulphate 300g/t and plumbi nitras 70g/t, stir 5min; Add isoamyl xanthate 150g/t and diethyldithiocarbamate 80g/t again, stir 3min; Finally add terpenic oil 40g/t, stir 2min; Air flotation.Obtain rougher concentration and rougher tailings.
(b) once purging selection
In (a), rougher tailings adds waterglass 300g/t, stirs 4min; Then add copper sulphate 130g/t and plumbi nitras 40g/t, stir 3min; Add isoamyl xanthate 60g/t and diethyldithiocarbamate 30g/t again, stir 4min; Finally add terpenic oil 20g/t, stir 1.5min; Air flotation.Obtain once purging selection concentrate and once purging selection mine tailing, once purging selection concentrate returns to be roughly selected.
C () secondary is scanned
In (b), once purging selection mine tailing adds Z-200 (ethyl thiourethane) 40g/t, stirs 4min; Add terpenic oil 8g/t again, stir 1.5min; Air flotation.Obtain secondary scavenger concentrate and secondary scans mine tailing, secondary scans mine tailing degaussing choosing, and secondary scavenger concentrate returns once purging selection.
D () is selected
By rougher concentration in (a) selected 2 times continuously, twice selected does not add medicament, and primary cleaning stirs air flotation after 3min, and recleaning stirs air flotation after 4min, obtains final lead and zinc concentrate.Wherein, primary cleaner tailing returns to be roughly selected, and primary cleaning concentrate carries out recleaning, and recleaning mine tailing returns primary cleaning, and recleaning concentrate is final lead and zinc concentrate.
(4) magnetic separation-
A () magnetic separation is roughly selected
Secondary in hydrocyclone overflow in step (1) and step (3) is scanned mine tailing to merge, carry out superconducting magnetic separation, roughly selecting magnetic field intensity is 5.3T, obtains magnetic separation rougher concentration and magnetic separation rougher tailings.
B () magnetic separation is scanned
The magnetic separation rougher tailings obtained in (a) is carried out magnetic separation scan, magnetic field intensity is 6.0T, obtains magnetic separation scavenger concentrate and mine tailing is scanned in magnetic separation, and magnetic separation is scanned mine tailing and gone flotation to reclaim lithium.
C () magnetic separation is selected
The magnetic separation scavenger concentrate obtained in the magnetic separation rougher concentration obtained in (a) and (b) is mixed to carry out magnetic separation selected, magnetic field intensity is 4.2T, obtain the selected concentrate of magnetic separation and magnetic separation cleaner tailings, in magnetic separation cleaner tailings and (b), magnetic separation is scanned mine tailing and is merged and go to select lithium.
(5) reverse flotation reclaims niobium
Add copper sulphate 150g/t in (a) selected concentrate of magnetic separation in step (4), stir 3min; Add hydroximic acid 70g/t and isoamyl xanthate 100g/t, stir 4min; Add terpenic oil 15g/t again, stir 1min; Air flotation.Obtain rougher concentration and rougher tailings.
B () rougher concentration in (a) adds copper sulphate 80g/t, stir 3min; Then add isoamyl xanthate 40g/t and hydroximic acid 40g/t, stir 3min; Add terpenic oil 10g/t again, stir 1.5min; Air flotation.Obtain selected concentrate (niobium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
Add Z-200 (ethyl thiourethane) 40g/t in (c) rougher tailings in (a), stir 3min; Add terpenic oil 8g/t again, stir 1.5min; Air flotation.Obtain scavenger concentrate and scan mine tailing (zinc concentrate), scavenger concentrate returns to be roughly selected, and scans the lead and zinc concentrate obtained in mine tailing (zinc concentrate) and step (3) and merges into final lead and zinc concentrate.
(6) lithium is reclaimed in flotation
(a) desliming
The desliming of mine tailing hydroclone classification is scanned in the magnetic separation obtained in step (4), and underflow goes flotation, and-0.043mm accounts for the overflow of 80% as true tailings, removes Tailings Dam.
B () roughly selects
Cyclone underflow in (a) is regulated concentration to 22%, adds sodium carbonate 400g/t and waterglass 750g/t, stir 4min; Add enuatrol 250g/t and lauryl amine 70g/t again, stir 4min; Air flotation.Obtain rougher concentration and rougher tailings.
C () scans
Add enuatrol 120g/t and lauryl amine 50g/t in rougher tailings in (b), stir 3min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scans mine tailing and goes to select rubidium.
D () is selected
Rougher concentration in (b) adds sulfuric acid 250g/t, stirs 2min, air flotation.Obtain selected concentrate (lithium concentrate) and cleaner tailings, cleaner tailings returns to be roughly selected.
(7) rubidium is reclaimed in flotation
A () roughly selects
Mine tailing of scanning in step (6) adds hydrofluoric acid 150g/t and sulfuric acid 300g/t, stirs 3min; Add lauryl amine 50g/t and petroleum sodium sulfonate 120g/t again, stir 4min; Air flotation.Obtain rougher concentration and rougher tailings.
B () scans
In (a), add sulfuric acid 150g/t in rougher tailings, stir 3min; Add lauryl amine 30g/t again, stir 3min; Air flotation.Obtain scavenger concentrate and scan mine tailing, scavenger concentrate returns to be roughly selected, and scanning mine tailing is true tailings.
(c) primary cleaning
Rougher concentration in (a) is stirred 1min, air flotation.Obtain primary cleaning concentrate and primary cleaner tailing, primary cleaner tailing returns to be roughly selected.
(d) recleaning
In (c), add sulfuric acid 100g/t in primary cleaning concentrate, stir 1.5min, air flotation.Obtain recleaning concentrate (rubidium concentrate) and recleaning mine tailing, recleaning mine tailing returns primary cleaning.
Pass through above-mentioned steps, obtain the lead and zinc concentrate of plumbous grade 18.79%, zinc grade 30.43%, lead recovery 82.97%, zinc recovery 85.82%, the lithium concentrate of grade lithium 5.26%, the lithium rate of recovery 71.65%, the niobium concentrate of niobium grade 43.79%, the niobium rate of recovery 62.90%, the rubidium concentrate of rubidium grade 3.94%, the rubidium rate of recovery 55.27%.
The above is the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from principle of the present invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (7)
1. the method for comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing, is characterized in that: the method comprises the steps:
(1) by Pb-Zn tailings cyclone classification, partition size accounts for 80-85% for-0.074mm;
(2) the cyclone classification underflow obtained in step (1) is carried out ore grinding, ore milling concentration is 60-72%, and mog-0.074mm accounts for 75-80%;
(3) ore milling product in step (2) is carried out floatation and recovery of lead zinc, comprise and roughly select, scan for twice with twice selected, obtain lead and zinc concentrate and secondary scans mine tailing;
(4) secondary obtained in step (3) is scanned the cyclone classification overflow that obtains in mine tailing and step (1) to merge and carry out superconducting magnetic separation, obtain magnetic concentrate and mine tailing is scanned in magnetic separation;
(5) magnetic concentrate obtained in step (4) is carried out reverse flotation and reclaim niobium, comprise reverse flotation roughly select, selected and scan, selected concentrate is niobium concentrate, scans the lead and zinc concentrate obtained in mine tailing (zinc concentrate) and step (3) and merges into final lead and zinc concentrate;
(6) mine tailing hydrocyclone is scanned in the magnetic separation obtained in step (4) and carry out desliming, the overflow that-0.043mm accounts for 78-83% is true tailings, underflow carries out flotation and reclaims lithium, comprise roughly select, selected and scan, the selected concentrate obtained is final lithium concentrate;
(7) mine tailing of scanning obtained in step (6) is carried out flotation recovery rubidium, comprise roughly select, twice selected and scan, the recleaning concentrate obtained is final rubidium concentrate, and true tailings is merged in the desliming overflow of scanning in mine tailing and step (6).
2. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, it is characterized in that: the condition of roughly selecting in described step (3) floatation and recovery of lead zinc is: pulp density is adjusted to 22-28%, add waterglass 800-1000g/t and calgon 100-200g/t, stir 5-7min; Then add copper sulphate 200-350g/t and plumbi nitras 50-100g/t, stir 3-5min; Add isoamyl xanthate 100-200g/t and diethyldithiocarbamate 50-100g/t again, stir 3-4min; Finally add terpenic oil 30-50g/t, stir 1-2min; Air flotation;
In described step (3), the condition of once purging selection is: add waterglass 200-400g/t, stirs 3-5min; Then add copper sulphate 100-150g/t and plumbi nitras 30-50g/t, stir 3-4min; Add isoamyl xanthate 50-80g/t and diethyldithiocarbamate 20-40g/t again, stir 3-4min; Finally add terpenic oil 15-30g/t, stir 1-2min; Air flotation;
The condition that in described step (3), secondary is scanned is: add Z-200 (ethyl thiourethane) 30-50g/t, stirs 3-4min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation;
Selectedly do not add any medicament twice in described step (3), after directly stirring 3-4min, flotation is carried out in inflation.
3. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, it is characterized in that: the superconducting magnetic separation in described step (4) comprises to be roughly selected, scan with selected, rougher tailings is scanned, rougher concentration and scavenger concentrate merging are carried out selected, wherein, roughly selecting magnetic field intensity is 5.0-5.5T, and scanning magnetic field intensity is 5.5-6.0T, selected magnetic field intensity 4.0-4.5T.
4. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, it is characterized in that: the condition of roughly selecting in reverse flotation recovery niobium in described step (5) is: add copper sulphate 100-200g/t, stir 3-4min; Then add hydroximic acid 50-90g/t and isoamyl xanthate 80-140g/t, stir 3-5min; Add terpenic oil 10-20g/t again, stir 1-1.5min; Air flotation;
In described step (5), selected condition is: add copper sulphate 50-100g/t, stirs 2-3min; Then add isoamyl xanthate 40-70g/t and hydroximic acid 30-50g/t, stir 2-3min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation;
In described step (5), the condition of scanning is: add Z-200 (ethyl thiourethane) 30-50g/t, stirs 3-4min; Add terpenic oil 5-10g/t again, stir 1-1.5min; Air flotation.
5. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, it is characterized in that: in described step (6), in flotation recovery lithium, the condition of roughly selecting is: pulp density is adjusted to 20-25%, add sodium carbonate 300-500g/t and waterglass 600-800g/t, stir 3-4min; Add enuatrol 200-300g/t and lauryl amine 50-100g/t again, stir 3-5min; Air flotation;
In described step (6), the condition of scanning is: add enuatrol 100-150g/t and lauryl amine 30-60g/t, stirs 2-4min; Air flotation;
In described step (6), selected condition is: add sulfuric acid 200-300g/t, stirs 1-2min, air flotation.
6. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, it is characterized in that: in described step (7), in flotation recovery rubidium, the condition of roughly selecting is: add hydrofluoric acid 100-200g/t and sulfuric acid 200-300g/t, stir 3-4min; Add lauryl amine 30-50g/t and petroleum sodium sulfonate 100-150g/t again, stir 3-5min; Air flotation;
In described step (7), the condition of scanning is: add sulfuric acid 100-200g/t, stirs 2-3min; Add lauryl amine 20-40g/t again, stir 2-4min; Air flotation;
In described step (7), primary cleaning directly stirs 1-2min, air flotation; Recleaning adds sulfuric acid 80-120g/t, after stirring 1-2min, and air flotation.
7. the method for a kind of comprehensive recovery of lead, zinc, lithium, niobium, rubidium from mine tailing according to claim 1, is characterized in that: the method obtains the lead and zinc concentrate of plumbous grade 18-22%, zinc grade 27-32%, lead recovery 82-85%, zinc recovery 85-88%; The lithium concentrate of grade lithium 5.0-5.5%, lithium rate of recovery 70-75%; The niobium concentrate of niobium grade 42-46%, niobium rate of recovery 60-65%; The rubidium concentrate of rubidium grade 3.5-4.5%, rubidium rate of recovery 55-59%.
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Denomination of invention: A method for comprehensive recovery of lead, zinc, lithium, niobium, and rubidium from tailings Granted publication date: 20150812 Pledgee: Jiangxi State-owned Venture Capital Management Co.,Ltd. Pledgor: JIANGXI YIYUAN RENEWABLE RESOURCES Co.,Ltd. Registration number: Y2024980004238 |