CN102251103A - Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid - Google Patents
Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid Download PDFInfo
- Publication number
- CN102251103A CN102251103A CN2011101450736A CN201110145073A CN102251103A CN 102251103 A CN102251103 A CN 102251103A CN 2011101450736 A CN2011101450736 A CN 2011101450736A CN 201110145073 A CN201110145073 A CN 201110145073A CN 102251103 A CN102251103 A CN 102251103A
- Authority
- CN
- China
- Prior art keywords
- leaching
- acid
- steel basin
- leaches
- sulfuric acid
- 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.)
- Pending
Links
Images
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
Landscapes
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid, which comprises steps as follows: two leaching agitator tanks A and B are adopted, and a liquid phase which is separated after minerals are subjected to acid leaching treatment by the leaching agitator tank A is directly used for reduction and extraction treatment; the separated solid phase enters the leaching agitator tank B, and is subjected to further acid leaching treatment; and the separated leaching solution B returns to the leaching agitator tank A so as to soak the newly added minerals. Compared with the existing acid-leaching vanadium extraction method, the invention reduces the consumption of sulfuric acid in the stone coal leaching process, lowers the concentration of spent acid in the leaching solution A, does not need to add alkali for neutralization in the post processing, and can not cause new environmental protection problem; and the leaching rate is higher than 90%.
Description
Technical field
The present invention relates to a kind of extracting vanadium by acid leaching of stone coal sulfuric acid circulation gradation leaching method.
Background technology
Vanadium is a kind of essential industry raw material, and the good reputation of " modern industry monosodium glutamate " is arranged.Traditional sinter process resource utilization is low, environmental pollution is big, progressively is eliminated.Leach the direction that vanadium extraction is the extracting vanadium from stone coal development with sulfuric acid.Vanadium occurrence status complexity, vanadium in bone coal exist with multiple valence state oxide compound, and the vitriol oil that must add 20%-30% when acid-leaching vanadium-extracted just can make the vanadium oxide that is wrapped in the ore particle deep change valency, leaching.But the problem of association is that spent acid is too high in the leach liquor with it, need add a large amount of alkali neutralizations when subsequent disposal, and acid and alkali consumption is big, the cost height.The method that someone takes to add various catalyzer, leaching agent reduces sour consumption, guarantees leaching yield.But the use of catalyzer, leaching agent not only increases cost equally, and brings new environmental issue.Therefore, seek a kind of environmental protection, low consumption, leaching method is necessary efficiently.
Summary of the invention
The objective of the invention is to disclose a kind of extracting vanadium by acid leaching of stone coal sulfuric acid circulation gradation leaching method.
Method of the present invention adopts two of A, B to leach steel basin, and mineral aggregate leaches the liquid phase (also claiming the A leach liquor) that obtains in the steel basin at A and directly send subsequent handling to make reduction, extraction treatment after acidleach is handled; Enter B and leach steel basin and leach solid phase that steel basin obtains from A, handle B leach liquor that the back obtains through further acidleach and turn back to A and leach steel basin and be used to soak initiate mineral aggregate, so constantly circulate, the gradation leaching is to realize purpose of the present invention.
Compare with existing method for extracting vanadium by stone coal through acid leaching, the present invention has the following advantages: the one, and the sulfuric acid consumption when reducing the bone coal leaching; The 2nd, reduce the spent acid concentration in the A leach liquor, when subsequent disposal, need not to add the alkali neutralization; The 3rd, guarantee that leaching yield is not less than 90%; The 4th, can not bring new environmental issue.
Description of drawings
Accompanying drawing is a process flow diagram of the present invention.
Embodiment
Mineral aggregate in A leaches steel basin by liquid-solid ratio 0.35: 0.65, be warmed to 90-120 ℃, immersion 8-12 hour through the vanadium sulphuric acid soln that contains of 1.3-1.5 volumetric molar concentration, compose in sulfuric acid and the mineral aggregate and deposit the barium oxide reaction more shallow, that valence state is higher, generate tetravalence barium oxide, vitriol and water, the tetravalence vanadium is dissolved in the acid solution, simultaneously, the hydrogen radical ion significantly reduces in the solution, the acidity of solution drops to 0.2 mole, during pH value 2.5, through the vacuum band-type filter machine solid-liquid separation, liquid phase (also claiming the A leach liquor) directly send subsequent handling to make reduction, extraction treatment; Solid phase enters B and leaches steel basin, by liquid-solid ratio 0.35: 0.65, be warmed to 90-120 ℃, soaked 24-44 hour through the concentrated sulfuric acid solution of 3 volumetric molar concentrations, vanadium in the ore particle more than 90% is oxidized to and dissolves in the sulphuric acid soln more than the tetravalence, when the sulfuric acid concentration of waiting to contain the vanadium sulphuric acid soln is 1.5 moles, through the pressure filter solid-liquid separation, the B leach liquor turns back to A and leaches steel basin by 0.35: 0.65 initiate mineral aggregate of immersion of liquid-solid ratio.So constantly circulation, gradation is leached, and can realize the target that the present invention sets.
Claims (1)
1. extracting vanadium by acid leaching of stone coal sulfuric acid circulation gradation leaching method, this method adopt two of A, B to leach steel basin, and mineral aggregate leaches in the steel basin at A and handles A that the back obtains through acidleach and leach liquid phase and send directly that subsequent handling is done to reduce, extraction treatment; Leach steel basin and enter B from the solid phase that A leaching steel basin obtains, the B leach liquor that obtains after further acidleach is handled turns back to A and leaches steel basin, so constantly circulation, gradation is leached, its special card is: mineral aggregate in A leaches steel basin by liquid-solid ratio 0.35: 0.65, be warmed to 90-120 ℃, immersion 8-12 hour through the vanadium sulphuric acid soln that contains of 1.3-1.5 volumetric molar concentration, the acidity for the treatment of solution drops to 0.2 mole, during pH value 2.5, carry out solid-liquid separation, A leaches liquid phase and directly send subsequent handling to make reduction, extraction treatment; Solid phase enters B and leaches steel basin, by liquid-solid ratio 0.35: 0.65, be warmed to 90-120 ℃, soaked 24-44 hour through the concentrated sulfuric acid solution of 3 volumetric molar concentrations, when the sulfuric acid concentration of waiting to contain the vanadium sulphuric acid soln is 1.5 moles, through the pressure filter solid-liquid separation, the B leach liquor of acquisition turns back to A and leaches steel basin by 0.35: 0.65 initiate mineral aggregate of immersion of liquid-solid ratio.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101450736A CN102251103A (en) | 2011-05-27 | 2011-05-27 | Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101450736A CN102251103A (en) | 2011-05-27 | 2011-05-27 | Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102251103A true CN102251103A (en) | 2011-11-23 |
Family
ID=44978668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101450736A Pending CN102251103A (en) | 2011-05-27 | 2011-05-27 | Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251103A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074503A (en) * | 2013-02-27 | 2013-05-01 | 老河口市绿华环保科技有限公司 | Wastewater zero discharging system and method for vanadium extraction from stone coal |
| CN104988337A (en) * | 2015-06-09 | 2015-10-21 | 陕西五洲矿业股份有限公司 | Stone coal vanadium ore leaching process for recycling residual acid |
| CN106399684A (en) * | 2016-09-21 | 2017-02-15 | 武汉科技大学 | Solid-liquid separation method of leaching pulp of vanadium extraction from stone coal |
| CN112095009A (en) * | 2020-10-30 | 2020-12-18 | 杨皓 | Process for recovering chlorides of calcium, sodium, aluminum, iron and rare earth by leaching red mud with hydrochloric acid |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481755A (en) * | 2009-02-17 | 2009-07-15 | 昆明理工大学 | Method for leaching vanadium from vanadium-containing coal mine |
| CN101760650A (en) * | 2010-02-05 | 2010-06-30 | 广州有色金属研究院 | Method for leaching vanadium in vanadium-containing stone coal by wet process |
| CN101935755A (en) * | 2010-09-15 | 2011-01-05 | 长沙达华矿业技术开发有限公司 | Two-stage leaching method for vanadium in vanadium-containing ore |
-
2011
- 2011-05-27 CN CN2011101450736A patent/CN102251103A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101481755A (en) * | 2009-02-17 | 2009-07-15 | 昆明理工大学 | Method for leaching vanadium from vanadium-containing coal mine |
| CN101760650A (en) * | 2010-02-05 | 2010-06-30 | 广州有色金属研究院 | Method for leaching vanadium in vanadium-containing stone coal by wet process |
| CN101935755A (en) * | 2010-09-15 | 2011-01-05 | 长沙达华矿业技术开发有限公司 | Two-stage leaching method for vanadium in vanadium-containing ore |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074503A (en) * | 2013-02-27 | 2013-05-01 | 老河口市绿华环保科技有限公司 | Wastewater zero discharging system and method for vanadium extraction from stone coal |
| CN103074503B (en) * | 2013-02-27 | 2014-04-02 | 老河口市绿华环保科技有限公司 | Wastewater zero discharging system and method for vanadium extraction from stone coal |
| CN104988337A (en) * | 2015-06-09 | 2015-10-21 | 陕西五洲矿业股份有限公司 | Stone coal vanadium ore leaching process for recycling residual acid |
| CN106399684A (en) * | 2016-09-21 | 2017-02-15 | 武汉科技大学 | Solid-liquid separation method of leaching pulp of vanadium extraction from stone coal |
| CN112095009A (en) * | 2020-10-30 | 2020-12-18 | 杨皓 | Process for recovering chlorides of calcium, sodium, aluminum, iron and rare earth by leaching red mud with hydrochloric acid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101838736B (en) | Wet separation method for valuable metals in purified liquid cobalt slags of wet zinc smelting system | |
| CN102766765B (en) | Zinc oxide powder recycling method | |
| CN102732731B (en) | Method for extracting valuable metals and refining zinc sulphate monohydrate from zinc-containing waste material | |
| WO2016041436A1 (en) | Leaching agent and leaching method for leaching rare earth in ion-adsorbed rare earth ore | |
| US20150307958A1 (en) | Monazite ballast separation and recovery method | |
| CN105369036A (en) | Method for extracting vanadium from vanadium-containing high-concentration hydrochloric acid solution | |
| CN101591733A (en) | Precipitating alum and removing iron method in the high-iron zinc sulfide concentrate pressurized acid leaching still | |
| CN103194602A (en) | Method for removing iron and recovering iron-enriched iron scum in wet-method zinc smelting process | |
| CN106011466B (en) | A kind of method that copper ashes grade is improved in Zinc Hydrometallurgy Process | |
| CN104531995A (en) | Method for extracting zinc from low-grade zinc-containing material leaching liquid | |
| CN103243349A (en) | Comprehensive zinc hydrometallurgy recovery system technique | |
| CN103866125A (en) | Method for removing fluorine chlorine of zinc ash material by alkali washing extracting combined process | |
| CN104532022A (en) | Technological method of full load fractional extracting and separating rare earths | |
| CN102251103A (en) | Circulating graded leaching method of stone coal acid-leaching vanadium extraction sulfuric acid | |
| CN103572064B (en) | Method for enriching lead and recovering rare earth from rare earth lead slag | |
| CN101838745A (en) | Zinc hydrometallurgy process with high yield by precipitating alum and removing iron | |
| CN102226235A (en) | Method for producing manganese electrolyte by using continuous countercurrent leaching | |
| CN102031371B (en) | Method for enriching germanium from wet process zinc smelting system | |
| CN103695647A (en) | Method for processing copperish electroplating sludge | |
| CN103160696B (en) | Method for carrying out microwave heating on stone coal containing vanadium to extract vanadium | |
| CN102899491B (en) | Method for floating and separating high-concentration iron ions from zinc sulfate leachate | |
| CN102583598A (en) | Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag | |
| CN102321801A (en) | Method for extracting vanadium from alkaline leaching solution containing vanadium stone coal | |
| CN103911518B (en) | A kind of efficient method fully leaching zinc in waste galvanized plate fume from steel making | |
| CN103436914B (en) | A kind of electrolytic metal manganese anode slag recovery and treatment method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111123 |