CN101629249A - Comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite - Google Patents
Comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite Download PDFInfo
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- CN101629249A CN101629249A CN200910112389A CN200910112389A CN101629249A CN 101629249 A CN101629249 A CN 101629249A CN 200910112389 A CN200910112389 A CN 200910112389A CN 200910112389 A CN200910112389 A CN 200910112389A CN 101629249 A CN101629249 A CN 101629249A
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- 239000002699 waste material Substances 0.000 title claims abstract description 31
- 238000000034 method Methods 0.000 title claims abstract description 27
- 239000003245 coal Substances 0.000 title claims abstract description 23
- 229910052720 vanadium Inorganic materials 0.000 title claims abstract description 16
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 title claims abstract description 16
- 239000004575 stone Substances 0.000 title claims abstract description 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 34
- 239000007788 liquid Substances 0.000 claims abstract description 26
- 239000002351 wastewater Substances 0.000 claims abstract description 26
- 239000002912 waste gas Substances 0.000 claims abstract description 19
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 15
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims abstract description 10
- 235000011130 ammonium sulphate Nutrition 0.000 claims abstract description 10
- UNTBPXHCXVWYOI-UHFFFAOYSA-O azanium;oxido(dioxo)vanadium Chemical compound [NH4+].[O-][V](=O)=O UNTBPXHCXVWYOI-UHFFFAOYSA-O 0.000 claims abstract description 9
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims abstract description 7
- 235000011941 Tilia x europaea Nutrition 0.000 claims abstract description 7
- 239000006227 byproduct Substances 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 7
- 239000004571 lime Substances 0.000 claims abstract description 7
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims abstract description 6
- 230000003647 oxidation Effects 0.000 claims abstract description 6
- 229910052938 sodium sulfate Inorganic materials 0.000 claims abstract description 6
- 235000011152 sodium sulphate Nutrition 0.000 claims abstract description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000005342 ion exchange Methods 0.000 claims abstract description 5
- 239000000047 product Substances 0.000 claims abstract description 5
- 150000003863 ammonium salts Chemical class 0.000 claims abstract description 4
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 claims description 28
- 210000000988 bone and bone Anatomy 0.000 claims description 13
- 238000001179 sorption measurement Methods 0.000 claims description 10
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 8
- 238000012545 processing Methods 0.000 claims description 8
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 claims description 7
- 239000002994 raw material Substances 0.000 claims description 7
- 238000013019 agitation Methods 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000002253 acid Substances 0.000 claims description 5
- 238000006386 neutralization reaction Methods 0.000 claims description 4
- NWUYHJFMYQTDRP-UHFFFAOYSA-N 1,2-bis(ethenyl)benzene;1-ethenyl-2-ethylbenzene;styrene Chemical compound C=CC1=CC=CC=C1.CCC1=CC=CC=C1C=C.C=CC1=CC=CC=C1C=C NWUYHJFMYQTDRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000000227 grinding Methods 0.000 claims description 3
- 239000003456 ion exchange resin Substances 0.000 claims description 3
- 229920003303 ion-exchange polymer Polymers 0.000 claims description 3
- 238000000197 pyrolysis Methods 0.000 claims description 3
- 241000220317 Rosa Species 0.000 claims description 2
- 235000019628 coolness Nutrition 0.000 claims description 2
- 238000010521 absorption reaction Methods 0.000 abstract description 8
- 230000008901 benefit Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000002386 leaching Methods 0.000 abstract description 3
- 230000003472 neutralizing effect Effects 0.000 abstract description 3
- 239000001166 ammonium sulphate Substances 0.000 abstract 2
- 229910021541 Vanadium(III) oxide Inorganic materials 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 239000002244 precipitate Substances 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 20
- 238000005516 engineering process Methods 0.000 description 6
- 238000000605 extraction Methods 0.000 description 6
- 239000000284 extract Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000003672 processing method Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- LPXPTNMVRIOKMN-UHFFFAOYSA-M sodium nitrite Chemical compound [Na+].[O-]N=O LPXPTNMVRIOKMN-UHFFFAOYSA-M 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 description 1
- 230000002308 calcification Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000006071 cream Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- 230000004151 fermentation Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005374 membrane filtration Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical group 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000010288 sodium nitrite Nutrition 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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Classifications
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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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P40/00—Technologies relating to the processing of minerals
- Y02P40/10—Production of cement, e.g. improving or optimising the production methods; Cement grinding
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- Treatment Of Water By Ion Exchange (AREA)
Abstract
The invention relates to a comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite. The method comprises the following steps: roasting and producing calcine and SO2-contained waste gas; generating ammonium sulphate by ammonia absorption and oxidation; leaching to obtain leached liquid; filtering and separating leached dregs to be used as produce cement; obtaining absorption tail liquid and stripping liquid by ion exchange treatment; neutralizing part of absorption tail liquid; returning to the leaching step; neutralizing the remaining absorption tail liquid with lime to achieve an emission standard; precipitating vanadium in ammonium salt to adjust a pH value of the stripping liquid; adding ammonium sulphate to stir and precipitate ammonium metavanadate and ammonia-nitrogen wastewater; rectifying the ammonia-nitrogen wastewater to obtain a sodium sulfate solution and ammonia; cooling the sodium sulfate solution to separate a byproduct of sodium sulfate; returning the ammonia to the ammonia absorption and oxidation step; pyrolyzing and roasting the ammonium metavanadate to obtain products of ammonia gas and V3O5; absorbing the ammonia gas by the negative pressure of water to obtain the ammonia; and returning the ammonia to the ammonia absorption and oxidation step. The invention has the advantages of comprehensively treating the three wastes generated in extracting vanadic oxide from the stone coal navajoite to achieve the emission standard, recycling the generated byproducts and having the advantages of low production cost, high economic benefits, and the like.
Description
One. technical field
The present invention relates to a kind of environment protection method, especially a kind of comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite is particularly suitable for Vanadium Pentoxide in FLAKES manufacturing enterprise and uses.
Two. background technology
Extract from bone coal in the Vanadium Pentoxide in FLAKES process and can produce a large amount of waste residue, waste gas and waste water, the direct discharging of these three wastes will serious environment pollution.Extract in the three wastes that produce in the Vanadium Pentoxide in FLAKES process from bone coal: the objectionable constituent of waste gas mainly are SO
2, many at present employing lime cream absorption methods are handled; The main component of waste residue is metal oxide and gangue mineral, and its objectionable constituent are less, and most of producers all build the mine tailing storehouse and stored up; Waste water is divided into acid waste water and ammonia nitrogen waste water, and acid waste water gets final product qualified discharge after neutralizing, and the harm of ammonia nitrogen waste water is bigger, the not treated direct discharging of present many producers, and minority producer does not promptly give discharging through the emission standard that reaches country after the simple process.
In order to eliminate serious exhaust emission, improve the rate of recovery, domestic many research units have carried out the exploratory development of number of ways in nearly more than ten years.For example Chinese patent 96118450.7 discloses Dongping Vanadium Smeltery, Anhua County, Hunan Prov.'s research " a kind of less salt is mixed the low acidleach of calcium roasting-normal temperature and gone out-extraction vanadium extraction technology ", it is compared with traditional technology, bigger improvement has been arranged, can reduce environmental pollution and reduce production costs, but still need add sodium-chlor, waste gas, wastewater discharge are still bigger, fundamentally do not solve environmental pollution and production cost problem.Chinese patent 200410061233.9 discloses " the compound calcification baking of bone coal-low acidleach is got-extraordinary ion-exchange system vanadium method " of wearing Xu Bin and Cheng Tianrong research for another example, it is to have added the calcic dry powder in bone coal, can reduce exhaust gas emission, but this technology exists some not enough: the one, when adding the calcic dry powder, also must add the inversion accelerating agent Sodium Nitrite, increased the technology cost, also can produce oxynitride during roasting, cause atmospheric pollution; The 2nd, this technology is roasting in open hearth, and roasting efficient is low, causes the comprehensive recovery of Vanadium Pentoxide in FLAKES not high; The 3rd, this technology acidleach takes to leave standstill leaching, needs to soak repeatedly repeatedly, and extraction time is long, occupations of land is many, leached mud hardens easily and be difficult to dig out from fermentation vat, energy consumption is big.
For addressing the above problem, Chinese patent application numbers 200710107299.0 discloses " a kind of comprehensive regulation is extracted the methods that produce the three wastes the Vanadium Pentoxide in FLAKES method from bone coal navajoite ", this method as the raw material of producing cement or pottery, adopts the SO in the milk of lime absorption waste gas to the bone coal navajoite leached mud
2, the calcium sulfate of generation adopts acid-base neutralisation removal of impurities, membrane filtration separation and steam to carry ammonia treatment waste water as the raw material of producing cement.This method can be used for the three wastes to be handled, but have that the lime consumption amount is many, the water power coal energy consumption of steam is huge, comprehensive administration of three wastes can not qualified discharge etc. deficiency.
Three. summary of the invention
The purpose of this invention is to provide a kind of comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite, it is comprehensive regulation three wastes in extracting vanadium and qualified discharge effectively both, can make some byproducts of reaction also may be used in the vanadium extraction operation again, realize recycle, reduce production costs.
For finishing this task, the present invention carries out in the following way:
A kind of bone coal navajoite extracts the comprehensive processing method that produces the three wastes in the Vanadium Pentoxide in FLAKES process and comprises following processing step and condition:
A. roasting by after the processing requirement fine grinding, is carried out roasting with bone coal navajoite in stoving oven, roasting goes out calcining and contains SO
2Waste gas;
B-1. ammoniacal liquor absorption-oxidation, what produce when absorbing roasting with ammoniacal liquor contains SO
2Waste gas adds catalyzer, blasts air, and catalyzed oxidation generates ammonium sulfate;
B-2. leach, after calcining is pulverized, add entry and sulfuric acid, carry out agitation leach;
C. filter, agitation leach liquid is filtered, tell leached mud and leach liquor, leached mud is as the raw material of producing cement;
D. ion exchange treatment, spent ion exchange resin is handled leach liquor, obtains adsorption tail liquid and stripping liquid;
E-1. neutralization, a part of adsorption tail liquid turns back to b-2 and leaches step, and remaining adsorption tail liquid is acid waste water, with in the lime and back qualified discharge;
E-2. ammonium salt precipitation is adjusted to 8.0～9.0 to the pH value of stripping liquid, adds ammonium sulfate, stirs, and precipitation is told ammonium meta-vanadate and ammonia nitrogen waste water;
F-1. rectifying places rectifying tower to carry out rectifying ammonia nitrogen waste water, obtains metabisulfite solution and ammoniacal liquor, and the sodium sulfate byproduct is separated out in the metabisulfite solution cooling, and ammoniacal liquor returns b-1 ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2Waste gas;
F-2. pyrolysis at 400～700 ℃ of following roasting 1～5h, obtains ammonia and V with ammonium meta-vanadate
2O
5Product;
G. absorb, ammonia water negative pressure is absorbed, prepare ammoniacal liquor, ammoniacal liquor also returns b-1 ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2Waste gas.
Can be used as raw material of the present invention all is the production domesticization raw material that market is easily purchased, and need not task equipment or device.
Advantage of the present invention:
(1) can extract the three wastes that produce in the Vanadium Pentoxide in FLAKES process by comprehensive regulation bone coal navajoite, the three wastes all can qualified discharge.
(2) byproduct of reaction of improvement three wastes process generation can turn back in the vanadium extraction operation, realizes recycle, can reduce production costs greatly, has remarkable economic efficiency and social benefit.
Four. description of drawings
The concrete grammar and the equipment of invention are provided by the following drawings.
Fig. 1 is the process flow sheet of a kind of comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite of proposition according to the present invention.
Each sign expression in the accompanying drawing:
1. bone coal navajoite 2. contains SO
2Waste gas 3. catalyzer 4. air 5. ammonium sulfate 6. water 7. sulfuric acid 8. waste residues 9. leach liquors 10. adsorption tail liquids 11. stripping liquids 12. ammonia nitrogen waste waters 13. metabisulfite solutions 14. ammoniacal liquor 15. ammonium meta-vanadate 16.V
2O
5Product 17. ammonias
The present invention is described in further detail below in conjunction with accompanying drawing.
Five. embodiment
As shown in Figure 1, the comprehensive processing method of the generation three wastes comprises following processing step and condition in a kind of bone coal navajoite extraction Vanadium Pentoxide in FLAKES process:
A. roasting by after the processing requirement fine grinding, is carried out roasting with bone coal navajoite 1 in stoving oven, roasting goes out calcining and contains SO
2Waste gas 2;
B-1. ammoniacal liquor absorption-oxidation, what produce when absorbing roasting with ammoniacal liquor contains SO
2Waste gas 2 adds catalyzer 3, blasts air 4, and catalyzed oxidation generates ammonium sulfate 5;
B-2. leach, after calcining is pulverized, add entry 6 and sulfuric acid 7, carry out agitation leach;
C. filter, agitation leach liquid is filtered, tell leached mud 8 and leach liquor 9, leached mud 8 is as the raw material of producing cement;
D. ion exchange treatment, spent ion exchange resin is handled leach liquor 9, obtains adsorption tail liquid 10 and stripping liquid 11;
E-1. neutralization, a part of adsorption tail liquid 10 turns back to b-2. and leaches step, and remaining adsorption tail liquid 10 is acid waste water, with in the lime and back qualified discharge;
E-2. ammonium salt precipitation is adjusted to 8.0～9.0 to the pH value of stripping liquid 11, adds ammonium sulfate 5, stirs, and precipitation is told ammonium meta-vanadate 15 and ammonia nitrogen waste water 12;
F-1. rectifying places rectifying tower to carry out rectifying ammonia nitrogen waste water 12, obtains metabisulfite solution 13 and ammoniacal liquor 14, and the sodium sulfate byproduct is separated out in metabisulfite solution 13 coolings, and ammoniacal liquor 14 returns b-1. ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2Waste gas;
F-2. pyrolysis at 400～700 ℃ of following roasting 1～5h, obtains ammonia 17 and V with ammonium meta-vanadate
2O
5Product 16;
G. absorb, ammonia 17 water negative pressure are absorbed, prepare ammoniacal liquor 14, ammoniacal liquor 14 also returns b-1. ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2 Waste gas 2.
Described catalyzer 3 is that concentration is the rose vitriol of 0.005～0.03mol/L.
It is 200～500L/h that described air blasts flow.
Embodiment
Processing step with comprehensive processing method of the present invention carries out the comprehensive administration of three wastes test to the factory that produces 3000 tons of Vanadium Pentoxide in FLAKESs per year, and the upper, middle and lower of taking technique condition limit is three embodiment respectively, handles about 350,000 tons of waste residue, SO
2About 0.9 ten thousand tons, about 0.05 ten thousand ton of ammonia, ammonia nitrogen concentration are 60,000 tons of the waste water of 13000mg/L, effect such as following table.
Comparative Examples
Equally the factory that produces 3000 tons of Vanadium Pentoxide in FLAKESs per year is carried out the comprehensive administration of three wastes test with prior art, get the bound of its processing condition respectively and do two Comparative Examples, handle about 350,000 tons of waste residue, SO equally
2About 0.9 ten thousand tons, about 0.05 ten thousand ton of ammonia, ammonia nitrogen concentration are 60,000 tons of the waste water of 13000mg/L, and its waste residue is used to produce cement or as material of construction, ammonia utilizes negative pressure water to absorb system ammoniacal liquor, absorbs with milk of lime to contain SO
2Waste gas, handle ammonia nitrogen waste water with vaporizing extract process, effect such as following table.
Table 1 embodiment of the invention is compared with the prior art routine technical indicator effect comparison table
| Lime consumption (t) | Produce ammoniacal liquor (t) | Produce ammonium sulfate (t) | Disposal of three wastes effect | Total economic benefit (ten thousand yuan) | |
| Embodiment 1 | ??/ | ??3000 | 1.2 ten thousand | But equal qualified discharge | ??300 |
| |
??/ | ??4000 | 1.5 ten thousand | But equal qualified discharge | ??650 |
| |
??/ | ??5000 | 1.8 ten thousand | But equal qualified discharge | ??1000 |
| Comparative Examples 1 | 20,000 | ??3500 | ??/ | Ammonia nitrogen waste water is difficult to qualified discharge | ??-600 |
| Comparative Examples 2 | 2.5 ten thousand | ??3000 | ??/ | Nitrogen nitrogen waste water is difficult to qualified discharge | ??-800 |
Can get by contrast, adopt technical scheme provided by the invention, can realize comprehensive administration of three wastes and qualified discharge, and can also produce certain economic benefits; And the employing prior art, ammonia nitrogen waste water is difficult to qualified discharge, and needs to drop into a large amount of funds.
Claims (3)
1. comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite comprises following processing step and condition:
A. roasting by after the processing requirement fine grinding, is carried out roasting with bone coal navajoite 1 in stoving oven, roasting goes out calcining and contains SO
2Waste gas 2;
B-1. ammoniacal liquor absorption-oxidation, what produce when absorbing roasting with ammoniacal liquor contains SO
2Waste gas 2 adds catalyzer 3, blasts air 4, and catalyzed oxidation generates ammonium sulfate 5;
B-2. leach, after calcining is pulverized, add entry 6 and sulfuric acid 7, carry out agitation leach;
C. filter, agitation leach liquid is filtered, tell leached mud 8 and leach liquor 9, leached mud 8 is as the raw material of producing cement;
D. ion exchange treatment, spent ion exchange resin is handled leach liquor 9, obtains adsorption tail liquid 10 and stripping liquid 11;
E-1. neutralization, a part of adsorption tail liquid 10 turns back to b-2. and leaches step, and remaining adsorption tail liquid 10 is acid waste water, with in the lime and back qualified discharge;
E-2. ammonium salt precipitation is adjusted to 8.0～9.0 to the pH value of stripping liquid 11, adds ammonium sulfate 5, stirs, and precipitation is told ammonium meta-vanadate 15 and ammonia nitrogen waste water 12;
F-1. rectifying places rectifying tower to carry out rectifying ammonia nitrogen waste water 12, obtains metabisulfite solution 13 and ammoniacal liquor 14, and the sodium sulfate byproduct is separated out in metabisulfite solution 13 coolings, and ammoniacal liquor 14 returns b-1. ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2Waste gas;
F-2. pyrolysis at 400～700 ℃ of following roasting 1～5h, obtains ammonia 17 and V with ammonium meta-vanadate
2O
5Product 16;
G. absorb, ammonia 17 water negative pressure are absorbed, prepare ammoniacal liquor 14, ammoniacal liquor 14 also returns b-1. ammoniacal liquor absorption-oxidation step, is used for absorbing containing SO
2Waste gas 2.
2. comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite according to claim 1 is characterized in that described catalyzer 3 is that concentration is the rose vitriol of 0.005～0.03mol/L.
3. comprehensive treatment method of three wastes in extracting vanadium from stone coal navajoite according to claim 1 is characterized in that it is 200～500L/h that described air blasts flow.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816921A (en) * | 2012-06-15 | 2012-12-12 | 湖南大学 | Chloride-free vanadium extraction technology |
| CN102899492A (en) * | 2012-10-24 | 2013-01-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for utilizing flue gas sulfuric acid |
| WO2017035344A1 (en) * | 2015-08-25 | 2017-03-02 | Deep Reach Technology, Inc. | System for recovering minerals from the seabed |
| CN108728649A (en) * | 2018-05-25 | 2018-11-02 | 中国科学院过程工程研究所 | A kind of method of bone coal acid waste water recycling |
| CN109437463A (en) * | 2018-12-29 | 2019-03-08 | 江苏卓博环保科技有限公司 | Coal calcination vanadium extraction high-salt wastewater advanced treatment and reclamation device and application method |
| CN111054202A (en) * | 2019-12-17 | 2020-04-24 | 山东黄金地质矿产勘查有限公司 | Waste gas and waste water recovery treatment device and recovery treatment method |
-
2009
- 2009-08-11 CN CN200910112389A patent/CN101629249A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102816921A (en) * | 2012-06-15 | 2012-12-12 | 湖南大学 | Chloride-free vanadium extraction technology |
| CN102899492A (en) * | 2012-10-24 | 2013-01-30 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for utilizing flue gas sulfuric acid |
| CN102899492B (en) * | 2012-10-24 | 2014-08-13 | 攀钢集团攀枝花钢铁研究院有限公司 | Method for utilizing flue gas sulfuric acid |
| WO2017035344A1 (en) * | 2015-08-25 | 2017-03-02 | Deep Reach Technology, Inc. | System for recovering minerals from the seabed |
| US10458235B2 (en) | 2015-08-25 | 2019-10-29 | Deep Reach Technology, Inc. | System for recovering minerals from the seabed |
| CN108728649A (en) * | 2018-05-25 | 2018-11-02 | 中国科学院过程工程研究所 | A kind of method of bone coal acid waste water recycling |
| CN109437463A (en) * | 2018-12-29 | 2019-03-08 | 江苏卓博环保科技有限公司 | Coal calcination vanadium extraction high-salt wastewater advanced treatment and reclamation device and application method |
| CN109437463B (en) * | 2018-12-29 | 2023-09-12 | 江苏卓博环保科技有限公司 | Advanced treatment and recycling device for stone coal blank roasting vanadium extraction high-salt wastewater and using method |
| CN111054202A (en) * | 2019-12-17 | 2020-04-24 | 山东黄金地质矿产勘查有限公司 | Waste gas and waste water recovery treatment device and recovery treatment method |
| CN111054202B (en) * | 2019-12-17 | 2022-07-08 | 山东黄金地质矿产勘查有限公司 | Waste gas and waste water recovery treatment device and recovery treatment method |
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