CN102191388A - Process for extracting vanadium from stone coal through two-section curing with concentrated acid - Google Patents
Process for extracting vanadium from stone coal through two-section curing with concentrated acid Download PDFInfo
- Publication number
- CN102191388A CN102191388A CN2011100512364A CN201110051236A CN102191388A CN 102191388 A CN102191388 A CN 102191388A CN 2011100512364 A CN2011100512364 A CN 2011100512364A CN 201110051236 A CN201110051236 A CN 201110051236A CN 102191388 A CN102191388 A CN 102191388A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- concentrated acid
- stone coal
- stage curing
- extracting vanadium
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
Abstract
The invention relates to a process for extracting vanadium from stone coal through two-section curing with concentrated acid. The process flow mainly comprises the following steps of: a, adding concentrated sulfuric acid into the vanadium-containing stone coal, and uniformly stirring; b, performing one-section curing on the mixture of the concentrated sulfuric acid and the vanadium-containing stone coal at the temperature of at least 50 DEG C; and c, performing second-section curing on the mixture subjected to the one-section curing at the temperature of at least 100 DEG C. The process has high conversion rate, saves mineral resources and has high adaptability.
Description
Technical field
The present invention relates to extraction process of vanadium in a kind of bone coal, particularly relate to a kind of employing vitriol oil two-stage curing technology and from bone coal, extract Vanadium Pentoxide in FLAKES.
Background technology
Bone coal is a kind of high rotten sapropelinite or algal coal.Be formed at the early proterozoic era and Eopaleozoic, have high ash, high-sulfur, lower calorific value and the big characteristics of hardness mostly.Its composition also has silicon oxide, calcium oxide and a spot of ferric oxide, aluminum oxide and magnesium oxide etc. except that containing organic carbon.
Bone coal has various classification.Press ash content and thermal value, can be divided into general bone coal and high-quality bone coal: the ash content of general bone coal is 40%～90%, and thermal value is in 16.7 kilojoules/below the gram; The ash content of high-quality bone coal is 20%～40%, and thermal value is 16.7～27.1 kilojoule/grams.By structure, structure, can be divided into block bone coal, granular bone coal, flakey bone coal and powdery bone coal.Press the primary and secondary of dirt in the bone coal, be divided into siliceous bone coal, calcareous bone coal etc.
Because it is huge to contain scherbinaite coal resource reserves, the technology of extracting Vanadium Pentoxide in FLAKES from bone coal is the emphasis of present extracting vanadium from stone coal industry common concern.Domestic extracting vanadium from stone coal adopts for a long time with salt roasting extract technology, valuable metal transformation efficiency low (generally being no more than 55%), and the energy consumption height, environmental pollution is serious; Since the last century the nineties, many enterprises explore direct acidleach, alkali soaking technology, but V
2O
5The rate of recovery not high (generally having only 40%～60%), the transformation efficiency that difficulty is soaked the ore deposit is lower, and the wasting of resources, environmental pollution problems still fundamentally are not resolved.
This shows that existing process for extracting vanadium from stone coal obviously exists tangible technological deficiency and environmental pollution, demands urgently being improved.In order to solve the problem that extracting vanadium from stone coal exists, many relevant enterprises fall over each other to develop the extracting vanadium from stone coal novel process, but do not see that up to the present real clean environment firendly, the extracting vanadium from stone coal novel process that the valuable metal transformation efficiency is high are used for suitability for industrialized production.Therefore, developing the extracting vanadium from stone coal novel process that a kind of energy-conserving and environment-protective, valuable metal transformation efficiency height, resource can be fully used, is the common aspiration and the task of top priority of extracting vanadium from stone coal industry.
Summary of the invention
Main purpose of the present invention is, overcome the technological deficiency that the extracting vanadium from stone coal traditional technology exists, for the extracting vanadium from stone coal industry provides a kind of brand-new technology, novel process technical problem to be solved guarantees the extracting vanadium from stone coal clean environment firendly exactly, valuable metal transformation efficiency height, energy consumption is low, and resource can be fully used, and novel process should have stronger adaptability.
The approach of the object of the invention to solve the technical problems is achieved by the following technical solution.According to a kind of concentrated acid two-stage curing process for extracting vanadium from stone coal that the present invention proposes, this technical process mainly comprises step: a, the vitriol oil is joined contain in the scherbinaite coal, stirs; B is with the vitriol oil and contain the scherbinaite coal mixtures at least 50 ℃ of next section slakings; C carries out two-stage curing under the material after one section slaking placed at least 100 ℃.
The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal also will add entry in the wherein said a step, and the control liquid-solid ratio is at least 0.5.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal also comprises the adding leaching agent in the wherein said a step.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, wherein said leaching agent are that strong oxide compound and ammonium salt class material form by cooperation in 1: 1.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, wherein said strong oxide compound is potassium permanganate, sodium chlorate, hydrogen peroxide, potassium bichromate, cobaltic fluoride.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, wherein said ammonium salt are ammonium sulfate, ammonium persulphate, ammonium nitrate, volatile salt, ammonium iodide.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, wherein said leaching agent add-on are 0.1%～3% of a step gained ore pulp weight.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, the temperature of wherein said one section slaking are 50-100 ℃, and the curing time is 0.5-10 hour.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, the temperature of wherein said two-stage curing are 100-300 ℃, and the curing time is at least 0.5 hour.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal also comprises c step gained being contained the vanadium solid moltenly soaks, solid-liquid separation, obtains to contain the step of vanadium leachate.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal, the described molten step of soaking is to contain at c step gained to add water-soluble soaking in the vanadium solid, stirs at least 1 hour more than 50 ℃.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal comprises that also vanadium leachate is purified, settling step with containing.
Aforesaid concentrated acid two-stage curing process for extracting vanadium from stone coal also comprises precipitated solid is calcined the pyrolytic step.
The present invention compared with prior art has tangible advantage and unusual effect.By technique scheme, the present invention has following advantage and effect at least:
1, certain temperature and humidity are controlled in one section slaking, make acid accumulator penetration mineral aggregate particle deep by etch and internal diffusion effect, allow ore particle be moistened by acidleach fully, participate in oxidizing reaction.
2, two-stage curing makes system reach needed temperature, strengthens the oxidizing reaction of concentrated acid, impels the low price vanadium to transform and finally leached to the high price vanadium, improves leaching effect, and the leaching yield of difficult navajoite stone is reached more than 80%.The leaching yield of general ore can reach more than 90%, even higher.
3, the use of leaching agent can reduce leaching condition, further improves the transformation efficiency of valuable metal.
In sum, concentrated acid two-stage curing process for extracting vanadium from stone coal of the present invention has obvious improvement technically, has tangible positively effect, really is a new and innovative, progressive, practical new design.
Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technique means of the present invention, and can be implemented according to the content of specification sheets, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by preferred embodiment, and conjunction with figs., be described in detail as follows.
Description of drawings
The schematic flow sheet of Fig. 1 concentrated acid two-stage curing process for extracting vanadium from stone coal of the present invention.
Embodiment
Reach technique means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, to its embodiment of concentrated acid two-stage curing process for extracting vanadium from stone coal, method, step, feature and effect thereof, describe in detail as after.
Accompanying drawing 1 is the present invention's's " concentrated acid two-stage curing process for extracting vanadium from stone coal " schematic flow sheet.This technical process mainly comprises:
A joins the vitriol oil and contains in the scherbinaite coal, stirs;
B with the vitriol oil with contain the scherbinaite coal mixtures and leave standstill, finishes one section slaking under at least 50 ℃;
C leaves standstill the mixture after one section slaking under at least 100 ℃, finish two-stage curing, obtains containing the vanadium solid.
In the above-mentioned a step, the described vitriol oil is meant the sulfuric acid of concentration greater than 3mol/L, and its add-on is with H
2SO
4Meter is at least 17% of bone coal weight.This step also will add entry, and the control liquid-solid ratio is at least 0.5.Liquid-solid ratio of the present invention is meant the volume of liquid and the ratio of solid weight.
The present invention adopt with V (II), V (III) valence state compose deposit contain the scherbinaite coal, adopt conventional Ginding process, be ground into greater than 20 purpose fineves as pulverizer, ball mill etc., preferred size is between the 20-200 order.
Also comprise the step that adds leaching agent in the above-mentioned a step.This leaching agent is that strong oxide compound and ammonium salt class material cooperate by weight and form at 1: 1.Used strong oxide compound can be but be not limited to potassium permanganate, sodium chlorate, hydrogen peroxide, potassium bichromate, cobaltic fluoride that used ammonium salt class material can be but be not limited to ammonium sulfate, ammonium persulphate, ammonium nitrate, volatile salt, ammonium iodide.The add-on of this leaching agent is 0.1%～3% of an ore pulp weight, preferred 0.1%～1%.The use of this leaching agent can reduce leaching condition, further improves the transformation efficiency of valuable metal.
In above-mentioned b step, one section slaking will be finished under temperature is higher than 50 ℃ condition, and preferred temperature range is 50-100 ℃.The humidity of this section slaking preferably remains at least 60%, and preferred humidity range is 60-90%.Adopt conventional temperature, the temperature and humidity in the humidity measuring apparatus detection reaction process in the present invention, and adopt ordinary method controlled temperature and humidity.
The time of one section slaking remained on 0.5-10 hour, and according to the temperature difference, the time of one section slaking can change.Along with temperature raises, the time of required one section slaking decreases.The effect of one section slaking is by etch and internal diffusion, makes acid accumulator penetration mineral aggregate particle deep, allows ore particle be moistened by acidleach fully, helps mineral and all participates in oxidizing reaction.
In above-mentioned c step, two-stage curing will be finished under temperature is higher than 100 ℃ condition, and preferred temperature range is 100-300 ℃.Adopt the temperature in the conventional temperature measuring set detection reaction process in the present invention, and adopt conventional method controlled temperature.
The time of two-stage curing is wanted more than 0.5 hour at least, and according to the temperature difference, the time of two-stage curing can change.Along with temperature raises, the time of required two-stage curing decreases.The effect of this two-stage curing is an oxidizing reaction of strengthening concentrated acid, impels the low price vanadium to transform and finally leached to the high price vanadium, improves leaching effect.
The use of leaching agent can reduce leaching condition, further improves the transformation efficiency of valuable metal.
Concentrated acid two-stage curing process for extracting vanadium from stone coal of the present invention also comprises:
D contains c step gained that the vanadium solid moltenly soaks, solid-liquid separation, obtains to contain vanadium leachate;
E will contain vanadium leachate and purify, precipitates, and obtain many vanadic acid ammonia;
F obtains V with many vanadic acid ammonia calcining pyrolysis
2O
5Product.
In the above-mentioned d step, adopt water will contain vanadium solid molten soaking more than 50 ℃, leave standstill, preferred more than 1 hour, obtain being dissolved with the blue solution and the solid residue of vanadium sulfate acyl this moment.Adopt conventional solid-liquid separation means as filtering, obtain leach liquor.
In the e step, method such as to take to extract the leach liquor that obtains is purified, used extraction liquid can be P204, adds oxygenant such as hydrogen peroxide then in the solution after extraction, through oxidation precipitation, obtains many vanadic acid ammonia.In the f step, the many vanadic acid ammonia that obtains is obtained V in calcining more than 400 ℃ more than 0.5 hour
2O
5Product.V
2O
5The quality of product can adopt conventional X fluorescent instrument to measure and obtain.
Below in conjunction with preferred embodiment, concrete processing parameter of the present invention is made a detailed description.
Embodiment 1
Adopt the normal experiment method, record as X fluorescent instrument that the vanadium grade is 0.89% in the used bone coal of present embodiment.
Above-mentioned bone coal 100g is levigate to greater than 60 orders, admix consumption and be 23% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.5, stirs.50 ℃ of next section slakings 1 hour; 120 ℃ of following two-stage curings 1.5 hours.Add solid-to-liquid ratio in the solid that obtains and be 2: 1 water behind two-stage curing, 70 ℃ of molten soaking 1 hour are down filtered then, and acid warm water washing obtains to contain vanadium leachate and soak slag.
Titration concentration is the l ferrous ammonium sulfate solution of 4g/L in containing vanadium leachate, according to the routine analysis chemical calculation method, records the vanadium leaching yield, and gained the results are shown in Table 1.
Embodiment 2
Bone coal 100g that will be identical with embodiment 1 is levigate to greater than 60 orders, admixes consumption and be 17% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.5, stirs.50 ℃ of next section slakings 1 hour; 120 ℃ of following two-stage curings 1.5 hours.Add solid-to-liquid ratio in the solid that obtains and be 2: 1 water behind two-stage curing, 70 ℃ of molten soaking 1 hour are down filtered then, and acid warm water washing obtains to contain vanadium leachate and soak slag.
Adopt the ferrous ammonium sulfate titration as embodiment 1, record the vanadium leaching yield, gained the results are shown in Table 1.
Embodiment 3
Bone coal 100g that will be identical with embodiment 1 is levigate to greater than 60 orders, admixes consumption and be 23% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.5, stirs.70 ℃ of next section slakings 1 hour; 100 ℃ of following two-stage curings 3 hours.Add solid-to-liquid ratio in the solid that obtains and be 2: 1 water behind two-stage curing, 70 ℃ of molten soaking 1 hour are down filtered then, and acid warm water washing obtains to contain vanadium leachate and soak slag.
Adopt the ferrous ammonium sulfate titration as embodiment 1, record the vanadium leaching yield, gained the results are shown in Table 1.
Embodiment 4
Bone coal 100g that will be identical with embodiment 1 is levigate to greater than 60 orders, admixes consumption and be 23% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.5, stirs.70 ℃ of next section slakings 1 hour; 150 ℃ of following two-stage curings 1.5 hours.Add solid-to-liquid ratio in the solid that obtains and be 2: 1 water behind two-stage curing, 70 ℃ of molten soaking 1 hour are down filtered then, and acid warm water washing obtains to contain vanadium leachate and soak slag.
Adopt the ferrous ammonium sulfate titration as embodiment 1, record the vanadium leaching yield, gained the results are shown in Table 1.
Table 1
Comparative example 1 and 2, along with the increase of sour consumption, the leaching yield of vanadium improves greatly as can be seen.Comparative example 1, embodiment 3 and embodiment 4 along with the raising of curing temperature, can shorten the curing time as can be seen greatly, improve the leaching yield of vanadium.
Embodiment 5
Present embodiment adopts and rams the husky ore deposit of mixing, and adopting the normal experiment method to record the vanadium grade is 1.02%.Present embodiment is divided into three groups of experiment A, B and C, the only variation of vanadium leaching yield behind the investigation adding leaching agent.
A organizes experiment: above-mentioned bone coal 500g is levigate to greater than 60 orders, admix consumption and be 23% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.86.Molten respectively soaking 12 hours and 21 hours under 95 ℃ filtered, and acid warm water washing obtains to contain vanadium leachate and soak slag.
B organizes experiment: above-mentioned bone coal 500g is levigate to greater than 60 orders, admix consumption and be 23% concentration and be 98% sulfuric acid.Add entry, the control liquid-solid ratio is 0.86, adds the leaching agent 1 (potassium permanganate and ammonium sulfate join at 1: 1 according to weight) of ore pulp volume 1%.Molten respectively soaking 12 hours and 21 hours under 95 ℃ filtered, and acid warm water washing obtains to contain vanadium leachate and soak slag.
C organizes experiment: above-mentioned bone coal 500g is levigate to greater than 60 orders, admix consumption and be 23% sulfuric acid.Add entry, the control liquid-solid ratio is 0.86, adds the leaching agent 2 (sodium chlorate and ammonium persulphate join at 1: 1 according to weight) of ore pulp volume 1%.Molten respectively soaking 12 hours and 21 hours under 95 ℃ filtered, and acid warm water washing obtains to contain vanadium leachate and soak slag.
Adopt ferrous ammonium sulfate titration, can record the vanadium leaching yield in the leach liquor, the results are shown in Table 2 as above-mentioned embodiment.
Table 2
By above data as can be seen, behind the adding leaching agent, the vanadium leaching yield significantly improves.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the technology contents that can utilize above-mentioned announcement is made a little change or is modified to the equivalent embodiment of equivalent variations, in every case be not break away from the technical solution of the present invention content, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.
Claims (13)
1. concentrated acid two-stage curing process for extracting vanadium from stone coal, this technical process mainly comprises step:
A joins the vitriol oil and contains in the scherbinaite coal, stirs;
B is with the vitriol oil and contain the scherbinaite coal mixtures at least 50 ℃ of next section slakings;
C carries out two-stage curing with the mixture after one section slaking under at least 100 ℃.
2. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1 is characterized in that also will adding entry in the wherein said a step, and the control liquid-solid ratio is at least 0.5.
3. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1 is characterized in that also comprising the adding leaching agent in the wherein said a step.
4. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 3 is characterized in that wherein said leaching agent is that strong oxide compound and ammonium salt class material cooperate by weight and form at 1: 1.
5. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 4 is characterized in that wherein said strong oxide compound is potassium permanganate, sodium chlorate, hydrogen peroxide, potassium bichromate, cobaltic fluoride.
6. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 4 is characterized in that wherein said ammonium salt is ammonium sulfate, ammonium persulphate, ammonium nitrate, volatile salt, ammonium iodide.
7. according to the described concentrated acid two-stage curing process for extracting vanadium from stone coal of each claim among the claim 3-4, it is characterized in that wherein said leaching agent add-on is 0.1%～3% of an a step gained ore pulp weight.
8. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1, the temperature that it is characterized in that wherein said one section slaking are 50-100 ℃, and the curing time is 0.5-10 hour.
9. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1, the temperature that it is characterized in that wherein said two-stage curing are 100-300 ℃, and the curing time is at least 0.5 hour.
10. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1 is characterized in that also comprising c step gained being contained the vanadium solid moltenly soaks, solid-liquid separation, obtains to contain the step of vanadium leachate.
11. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 10 is characterized in that the described molten step of soaking is to contain in the vanadium solid at c step gained to add entry, stirs at least 1 hour more than 50 ℃.
12. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1 is characterized in that also comprising that vanadium leachate is purified, settling step with containing.
13. concentrated acid two-stage curing process for extracting vanadium from stone coal according to claim 1 is characterized in that also comprising precipitated solid is calcined the pyrolytic step.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100512364A CN102191388B (en) | 2010-03-04 | 2011-03-03 | Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101175575A CN101921912A (en) | 2010-03-04 | 2010-03-04 | Concentrated acid two-stage curing-gas liquid cyclic vanadium extraction process from stone coal |
| CN201010117557.5 | 2010-03-04 | ||
| CN2011100512364A CN102191388B (en) | 2010-03-04 | 2011-03-03 | Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102191388A true CN102191388A (en) | 2011-09-21 |
| CN102191388B CN102191388B (en) | 2013-05-15 |
Family
ID=43337125
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101175575A Pending CN101921912A (en) | 2010-03-04 | 2010-03-04 | Concentrated acid two-stage curing-gas liquid cyclic vanadium extraction process from stone coal |
| CN2011100512364A Expired - Fee Related CN102191388B (en) | 2010-03-04 | 2011-03-03 | Process for extracting vanadium from stone coal through two-section curing with concentrated acid |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101175575A Pending CN101921912A (en) | 2010-03-04 | 2010-03-04 | Concentrated acid two-stage curing-gas liquid cyclic vanadium extraction process from stone coal |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN101921912A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732736A (en) * | 2012-07-23 | 2012-10-17 | 中南大学 | Method for extracting vanadium from burning slag of stone coal vanadium mine fluidized bed |
| CN102912144A (en) * | 2012-09-12 | 2013-02-06 | 北京矿冶研究总院 | Method for leaching vanadium pentoxide from vanadium-containing soot |
| CN104388683A (en) * | 2014-12-08 | 2015-03-04 | 中南大学 | Method for separating and recycling vanadium and chromium from vanadium and chromium-containing material |
| CN104451201A (en) * | 2014-11-21 | 2015-03-25 | 长沙矿冶研究院有限责任公司 | Two-grade curing vanadium extraction method for stone coal vanadium ores |
| CN104451202A (en) * | 2014-11-21 | 2015-03-25 | 长沙矿冶研究院有限责任公司 | Two-stage curing vanadium extraction method of stone coal vanadium ores |
| CN104911357A (en) * | 2015-05-05 | 2015-09-16 | 徐强富 | Method for normal temperature and pressure whole-wet leaching of toxic elements in mining and metallurgical solid waste |
| CN106350669A (en) * | 2016-09-13 | 2017-01-25 | 武汉轻工大学 | Method for leaching vanadium from high-calcium vanadium-bearing stone coal by adopting carbonization process |
| CN106435177A (en) * | 2016-12-05 | 2017-02-22 | 武汉科技大学 | Method for leaching vanadium from vanadium-containing stone coal |
| CN109112324A (en) * | 2018-09-03 | 2019-01-01 | 四川省有色冶金研究院有限公司 | It is a kind of to leach the method for efficiently strengthening V leaching rate in bone coal in activation |
| CN109207720A (en) * | 2018-11-14 | 2019-01-15 | 南华大学 | A kind of leaching method of extracting vanadium from stone coal |
| CN115354173A (en) * | 2022-08-08 | 2022-11-18 | 北京天瑞利达投资发展有限公司 | Stone coal concentrated acid two-stage curing vanadium extraction process |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102391904A (en) * | 2011-10-10 | 2012-03-28 | 郑峰 | Technology for increasing value of stone coal and extracting valuable metal elements |
| CN103290215B (en) * | 2013-06-17 | 2015-05-20 | 长沙矿冶研究院有限责任公司 | Method for curing and leaching reinforced stone coal navajoite concentrated acid |
| CN105039746A (en) * | 2015-08-28 | 2015-11-11 | 长沙矿冶研究院有限责任公司 | Method for directly extracting high-purity vanadium pentoxide from stone coal vanadium ore |
| CN110284013B (en) * | 2019-07-30 | 2023-08-29 | 中国科学院过程工程研究所 | Stone coal vanadium ore curing production equipment and stone coal vanadium ore curing production method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054630A (en) * | 2007-05-28 | 2007-10-17 | 德物华经济信息研究院有限公司 | Integrated treatment method for the three wastes generated form method of extracting vanadium pentoxide from stone-like coal navajoite |
| CN101260464A (en) * | 2008-04-11 | 2008-09-10 | 中南大学 | Stone coal vanadium-extracting ore decomposition method |
| CN101481755A (en) * | 2009-02-17 | 2009-07-15 | 昆明理工大学 | Method for leaching vanadium from vanadium-containing coal mine |
-
2010
- 2010-03-04 CN CN2010101175575A patent/CN101921912A/en active Pending
-
2011
- 2011-03-03 CN CN2011100512364A patent/CN102191388B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101054630A (en) * | 2007-05-28 | 2007-10-17 | 德物华经济信息研究院有限公司 | Integrated treatment method for the three wastes generated form method of extracting vanadium pentoxide from stone-like coal navajoite |
| CN101260464A (en) * | 2008-04-11 | 2008-09-10 | 中南大学 | Stone coal vanadium-extracting ore decomposition method |
| CN101481755A (en) * | 2009-02-17 | 2009-07-15 | 昆明理工大学 | Method for leaching vanadium from vanadium-containing coal mine |
Non-Patent Citations (2)
| Title |
|---|
| 魏昶: "低品位含钒石煤酸浸提钒工艺研究", 《矿产综合利用》, 30 April 2002 (2002-04-30) * |
| 鲁兆玲: "《用酸法从石煤中提取五氧化二钒的试验研究与工业实践》", 《湿法冶金》, vol. 21, no. 4, 21 December 2002 (2002-12-21), pages 178 - 4 * |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102732736B (en) * | 2012-07-23 | 2015-01-14 | 中南大学 | Method for extracting vanadium from burning slag of stone coal vanadium mine fluidized bed |
| CN102732736A (en) * | 2012-07-23 | 2012-10-17 | 中南大学 | Method for extracting vanadium from burning slag of stone coal vanadium mine fluidized bed |
| CN102912144A (en) * | 2012-09-12 | 2013-02-06 | 北京矿冶研究总院 | Method for leaching vanadium pentoxide from vanadium-containing soot |
| CN104451201B (en) * | 2014-11-21 | 2017-04-12 | 长沙矿冶研究院有限责任公司 | Two-grade curing vanadium extraction method for stone coal vanadium ores |
| CN104451201A (en) * | 2014-11-21 | 2015-03-25 | 长沙矿冶研究院有限责任公司 | Two-grade curing vanadium extraction method for stone coal vanadium ores |
| CN104451202A (en) * | 2014-11-21 | 2015-03-25 | 长沙矿冶研究院有限责任公司 | Two-stage curing vanadium extraction method of stone coal vanadium ores |
| CN104388683A (en) * | 2014-12-08 | 2015-03-04 | 中南大学 | Method for separating and recycling vanadium and chromium from vanadium and chromium-containing material |
| CN104911357A (en) * | 2015-05-05 | 2015-09-16 | 徐强富 | Method for normal temperature and pressure whole-wet leaching of toxic elements in mining and metallurgical solid waste |
| CN106350669A (en) * | 2016-09-13 | 2017-01-25 | 武汉轻工大学 | Method for leaching vanadium from high-calcium vanadium-bearing stone coal by adopting carbonization process |
| CN106350669B (en) * | 2016-09-13 | 2019-03-29 | 武汉轻工大学 | A kind of Rock coal containing alum water vapour charing pretreatment preparation V2O5Method |
| CN106435177A (en) * | 2016-12-05 | 2017-02-22 | 武汉科技大学 | Method for leaching vanadium from vanadium-containing stone coal |
| CN109112324A (en) * | 2018-09-03 | 2019-01-01 | 四川省有色冶金研究院有限公司 | It is a kind of to leach the method for efficiently strengthening V leaching rate in bone coal in activation |
| CN109207720A (en) * | 2018-11-14 | 2019-01-15 | 南华大学 | A kind of leaching method of extracting vanadium from stone coal |
| CN115354173A (en) * | 2022-08-08 | 2022-11-18 | 北京天瑞利达投资发展有限公司 | Stone coal concentrated acid two-stage curing vanadium extraction process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101921912A (en) | 2010-12-22 |
| CN102191388B (en) | 2013-05-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102191388B (en) | Process for extracting vanadium from stone coal through two-section curing with concentrated acid | |
| Li et al. | Acid leaching of black shale for the extraction of vanadium | |
| CN102828025B (en) | Method for extracting V2O5 from stone coal navajoite | |
| CN101914678B (en) | Method for producing industry molybdenum oxide from molybdenum concentrate | |
| CN101293754B (en) | Method for preparing titanium dioxide composite material with fine silica flour | |
| CN102432071B (en) | Method for integrally utilizing high-iron-content bauxite | |
| CN102912123A (en) | Method for decomposing stone coal vanadium ore by curing sulfuric acid | |
| CN105112689A (en) | Method for extracting titanium from vanadium titano-magnetite | |
| CN101717858B (en) | Method for extracting molybdenum, nickel, vanadium and ferrum from polymetallic black-shale paragentic minerals | |
| CN101481755A (en) | Method for leaching vanadium from vanadium-containing coal mine | |
| CN102417978B (en) | Method for enriching titanium in coal gangue | |
| CN102358917A (en) | Method for leaching manganese sulfate from low grade pyrolusite | |
| CN100552064C (en) | The method of bone coal sulfate-adding wet-pile oxidation conversion of leached vanadium under a kind of normal temperature and pressure | |
| CN102312102A (en) | Comprehensive utilization method for titanium-contained blast furnace slag | |
| CN1978326A (en) | Process for producing vanadium pentoxide from vanadiferous coal stone | |
| CN102500592A (en) | Method for comprehensively utilizing alumina red mud | |
| CN101914695A (en) | Method for recycling vanadium from vanadium ore containing high silicon and high carbon via wet process | |
| CN102061388A (en) | Method for smelting ferromolybdenum by utilizing molybdenum scrap | |
| CN103320628A (en) | Method for reducing acid consumption by concentrated acid aging method in process of leaching vanadium from navajoite | |
| CN105110300B (en) | The method that a kind of compound manganese ore of Containing Sulfur manganese extracts manganese and sulphur | |
| CN104164571B (en) | The recovery method of valuable metal element in a kind of Converter Vanadium-bearing Slag | |
| CN104232940A (en) | Technology for extracting vanadic anhydride from bone coal by wet method | |
| CN108707746B (en) | Method for increasing iron and reducing phosphorus of high-phosphorus oolitic hematite by two-stage roasting, magnetic separation and leaching | |
| CN106277266A (en) | A kind of utilize the method for arsenic in slag processing nonferrous metallurgy waste acid | |
| CN105819517A (en) | Method for preparing iron oxide red from coal ash |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130515 Termination date: 20140303 |