CN100422357C - Method for electrolyzing vanadium slurry and extracting vanadium pentexide using film - Google Patents

Method for electrolyzing vanadium slurry and extracting vanadium pentexide using film Download PDF

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Publication number
CN100422357C
CN100422357C CNB2007102001282A CN200710200128A CN100422357C CN 100422357 C CN100422357 C CN 100422357C CN B2007102001282 A CNB2007102001282 A CN B2007102001282A CN 200710200128 A CN200710200128 A CN 200710200128A CN 100422357 C CN100422357 C CN 100422357C
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vanadium
extraction
electric field
ammonium
navajoite
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CN101008047A (en
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杨暖
侯作义
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In the Xiangfan Jiufeng Mining Technology Co. Ltd.
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In Nine Feng (beijing) Investment Co Ltd
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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

Abstract

The invention relates to a method for preparing vanadic anhydride through electric field disintegrating vanadium ore diaphragm extraction, comprising following steps: disintegrating vanadium ore, grinding into vanadium- containing powdered ore of 100- 250 order; mixing vanadium- containing slurry with liquid and solid ratio being 1: 1.5 - 2 with vanadium- containing powdered ore and electrolytic solution; putting vanadium- containing slurry into alternating current field decomposer for electrolysis, the voltage of electric field is 0 -110 voltage, current is 0- 3000 A, the discharging disintegrating time is 30- 90 minutes, and stopping when vanadium- containing slurry becomes into solid; adding water for diluting and extracting vanadium with diaphragm; feeding got organic phase for teschemacherite back extraction, adding ammonium salt into vanadium- containing liquid, heating and stirring, cooling and aging, getting ammonium vanadate and water solution. The invention is characterized by short production cycle, no pollution, low energy consumption, small investment for production device, small occupying area and high vanadium recovering rate.

Description

Electric field decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film
(1) technical field
The present invention relates to a kind of wet method extracting method of Prospects of Rare Metal Vanadium, particularly a kind of method of producing Vanadium Pentoxide in FLAKES.
(2) background technology
The vanadium resource of China is abundanter, and explored vanadium minerals has kind more than 70.And existingly from vanadium minerals, put forward the method that Vanadium Pentoxide in FLAKES mainly adopts roasting, its main production methods step has: add sodium-salt calcination or add the calcium oxide roasting, go out or dilute sulphuric acid leaching, filtration, purification, ammonium salt precipitation through water logging, filter and dry, elevated temperature heat is decomposed deamination etc.The key step of another kind method has: the vanadine ore deposit mixes through stirrer with dilute sulphuric acid, sodium pyrosulfate, sodium chlorate through grinding, and pond sealing then, immersion are sunk clearly, filtered drip washing, purification filtering, use 15% trioctylamine (TOA, N again 2O 4) or with di-(2-ethylhexyl)phosphoric acid (HDEHP, P 2O 4) carry out classification counter-current extraction, washing, (extraction agent is P with ammoniacal liquor (during TOA) or dilute sulphuric acid 2O 4The time) operation such as back extraction.Adopt aforesaid method, total vanadium recovery is only between 35～55%.
There are the following problems for aforementioned production method: used facility investment is big, and the occupied ground area is big, and the production cycle is long, the energy consumption height, and wherein having maximum problem is that trade effluent and harmful gas emission are big, seriously polluted, the control expense height.
(3) summary of the invention
The purpose of this invention is to provide a kind of electric field and decompose the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is seriously polluted to solve existing extraction vanadium method, and the production cycle is long, and power consumption is high, and investment of production equipment is big, and the occupied ground area is big, the problem that vanadium recovery is low; And the recycle problem of waste water, exhaust gas emission and water in the solution production process.
The object of the present invention is achieved like this: this electric field decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that:
Step 1: will contain navajoite stone and pulverize, levigate to 100 to 250 purposes contain the navajoite powder;
Step 2: will above-mentionedly contain navajoite powder and electrolytic solution mixing furnishing liquid, starch admittedly than the navajoite that contains that is 1: 1.5～2;
Step 3: the above-mentioned navajoite slurry of containing is put into the alternating-electric field decomposer and is carried out electrolysis, start power supply after, the voltage of electric field is 0～110V, electric current is 0～3000A, the discharge resolving time is 30～90 minutes, contains the navajoite slurry and is when doing solid state and stops;
Step 4: in doing the solid state ore pulp, add water towards rare one-tenth liquid, starch admittedly than the navajoite that contains that is 1: 1.5～2;
Step 5: will contain in the navajoite slurry input barrier film extraction tank and carry out the barrier film extraction vanadium extraction, pH is 2～10, adopts tertiary amines trialkylamine N 235Or quaternary ammonium chlorination trialkyl first ammonium N 263Anion extractant, with 5% secondary octanol, the dilution of 80% aviation kerosene;
Step 6: the load organic phases that obtains after the barrier film extraction enters carbon ammonium back extraction step, obtains containing vanadium clear liquid and blank organism after the back extraction, contains the vanadium clear liquid and enters step 7, and blank organism returns step 5;
Step 7: the above-mentioned pH that contains the vanadium clear liquid is adjusted to 3～8, adds the ammonium salt precipitation, heated and stirred, cooling and aging obtains the ammonium meta-vanadate and the aqueous solution, and the aqueous solution returns step 6 after adding the carbon ammonium.
Electrolytic solution in step 2 can adopt the dilute sulphuric acid of 2～4N.
Electrolytic solution in step 2 can adopt 10～15% soda ash solution.
In step 3, the transformer of electric field decomposer can adopt the fused salt variable-voltage transformer of voltage 0～110V, electric current 0～3000A.
In step 5, the barrier film extraction can be 3～5 grades, compares O/A=1/3, and the ore pulp after the extraction enters step 6, and sediment obtains the waste and the aqueous solution after press filtration, and the aqueous solution returns step 3; Waste is used as building materials, builds up fields;
In step 5, sodium is reclaimed with electroosmose process in the saturated back of the sodium in the aqueous solution that sediment obtains after press filtration, and sulfuric acid is used for producing again.
In step 6, the back extraction of carbon ammonium can be 2～3 grades, the back extraction of carbon ammonium compare O/A=4/1,5 grades of pre-equilibrations.
In step 7, the Heating temperature that contains the vanadium clear liquid is 65 ℃～80 ℃, adds the ammonium salt of 1.6 times of theoretical amount, and the ammonium salt of adding is ammonium chloride or ammonium sulfate, stirs cooling and aging 4 hours 15 minutes.
After step 7, can carry out step 8, the ammonium meta-vanadate centrifuge dehydration, the ammonium meta-vanadate after the centrifuge dehydration is with 1% ammonium chloride solution drip washing, and the aqueous solution of deviating from returns step 6 after adding the carbon ammonium;
Can enter step 9 after step 8, the vacuum electric field takes off ammonium, adopts the electric heating infrared heat to decompose metavanadic acid, and Heating temperature is 250 ℃～450 ℃, makes Vanadium Pentoxide in FLAKES, and ammonia absorbs with 2～4N dilute hydrochloric acid, and ammonium chloride reclaims and is used for producing again.
The present invention compares the beneficial effect that has with existing conventional art:
The fineness that is crushed to that the present invention will contain navajoite stone is that 100 to 250 purposes contain the navajoite powder, has saved the reaction times, has quickened the leaching process of vanadium, helps improving vanadium recovery.
The present invention adopts and will contain the navajoite slurry and put into the alternating-electric field decomposer and carry out electrolytic method, in electrolytic process, electrolyte solution has quickened the decomposition of particle cluster, when electric current passes through, slurry temperature raises, and be attended by physical-chemical reaction and take place, do not need to add reductive agents such as sodium pyrosulfate, sodium chlorate, there are not waste gas generations such as chlorine, containing vanadium composition particle is broken down into rapidly in electrolytic process and is easy to throw out and contains the vanadium slurries, its chemical reaction rate is obviously accelerated, and is of value to the extraction of vanadium, has significantly reduced the time of decomposition reaction.
The present invention does not have waste water, exhaust gas discharging in process of production, water of productive use has been realized recycle, and the slag after the extraction obtains the waste and the aqueous solution after press filtration, and the aqueous solution can return electric field ore pulp decomposition step, continue to serve as the production of Vanadium Pentoxide in FLAKES, waste can be used as building materials, builds up fields.Ammonium meta-vanadate decomposes with employing electric heating infrared heat after the 1% ammonium chloride solution drip washing through centrifuge dehydration, the Vanadium Pentoxide in FLAKES purity height that makes, and purity is greater than 99.95%.
The present invention adopts tertiary amines trialkylamine N in barrier film extraction vanadium extraction process 235Or quaternary ammonium chlorination trialkyl first ammonium N 263
Anion extractant helps the accelerated reaction process, improves the rate of recovery of vanadium.
The equipment that electric field ore pulp required for the present invention decomposes is very simple, save great deal of investment, electric field decomposer occupied ground area is little, reduced production cost, production technique is simple, adopts electric field to decompose ore pulp, the decomposition rate of vanadium is fast, effective, rate of decomposition reaches more than 98%, has shortened more than 70% than the existing method production cycle.
(4) description of drawings
Fig. 1 is the process flow sheet of the embodiment of the invention;
Fig. 2 is the graphic representation of electric field ore pulp of the present invention electric current, temperature, time and rate of decomposition relation when decomposing;
Fig. 3 is the synoptic diagram of electric field decomposer.
Among the figure: 1-step 1,2-step 2,3-step 3,4-step 4,5-step 5,6-step 6,7-step 7,8-step 8,9-step 9; 10-electric field decomposer; 11-contains the navajoite slurry; The 12-operator's console; The 13-electrode.
(5) embodiment
Preferred embodiment is referring to Fig. 1, and this electric field decomposes the method steps that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film:
Step 1, ore is pulverized, with navajoite stone flour mill 100 to 250 orders.
Step 2 is liquid, sizes mixing than 1: 1.5～2 admittedly with the breeze ratio with the dilute sulphuric acid of 2～4N or with 10～15% soda ash solution;
A), sulfuric acid system
Fe(VO 3) 2+2H 2SO 4+xH 2O＝(VO 2) 2SO 4+FeSO 4+x+2H 2O；
Ca(VO 3) 2+2H 2SO 4+xH 2O＝(VO 2) 2SO4+CaSO4↓+x+2H 2O。
B), soda ash system
Ca(VO 3) 2+Na 2CO 3+xH 2O＝2NaVO 3+CaCO 3↓+xH 2O。
Fe(VO 3) 2+Na 2CO 3+xH 2O＝2NaVO 3+FeO↓+CO 2↑+xH 2O。
Step 3 is referring to Fig. 2, Fig. 3, the electric field ore pulp decomposes, above ore pulp is put into electric field decomposer 10, power supply adopts voltage 0～45V, and the fused salt variable-voltage transformer of electric current 0～3000A starts power supply, discharge was decomposed after 30～90 minutes, ore pulp is dried solid state, and the rate of decomposition of vanadium reaches more than 98, stops discharge.1 meter of the length of electric field decomposer 10, wide 0.7 meter, can be deeply about 1 meter, two electrodes 13 are connected with transformer with power supply on the operator's console 12, and the distance between two electrodes 13 can be about 60 centimetres.Contain electric current, temperature, time and the rate of decomposition relation of navajoite slurry 11 when electric field decomposes referring to Fig. 2.
Step 4 adds water towards rare original volume that arrives with ore pulp, in the input barrier film extraction tank.
Step 5, tertiary amines trialkylamine N is adopted in the barrier film extraction 235Or quaternary ammonium chlorination trialkyl first ammonium N 263Anion extractant, with 5% secondary octanol, 80% aviation kerosene dilution, 3～5 grades of barrier film solvent-in-pulp extractions, O/A=1/3 is compared in pH2～10.
Extraction mechanisms is: 5R 3N (0)+ HV 10O 28 5-+ 5H 2O=[R 3NH] 5HV 10O 28+ 5OH -
The extraction ore pulp filters by plate-and-frame filter press, and filtrate enters step 3, and slag obtains the waste and the aqueous solution after press filtration, and the aqueous solution returns step 3; Be used as building materials after 150 ℃ of oven dry of waste, build up fields; Raw ore V 2O 3Content 1.23%, V 2O 3Residual quantity 0.025%, decomposition reaches more than 98%; Sodium is reclaimed with electroosmose process in the saturated back of sodium in the aqueous solution that slag obtains after press filtration, and sulfuric acid is used for producing again.
Step 6, the back extraction of carbon ammonium, organic phase 2～3 grades of back extractions of ammonium bicarbonate soln that obtain after the barrier film extraction, compare O/A=4/1,5 grades of pre-equilibrations, solution obtain containing the vanadium stillness of night and blank organism after the back extraction of carbon ammonium, containing the vanadium stillness of night enters step 5, and blank organism returns step 3.
Step 7, adjust pH adds the ammonium salt precipitation, contain the vanadium stillness of night to transfer pH be 3～8 above-mentioned, heat 65 ℃～80 ℃ and stir the ammonium salt that adds 1.6 times of theoretical amount, the ammonium that adds is ammonium chloride or ammonium sulfate, stirs cooling and aging 4 hours 15 minutes, obtain the ammonium meta-vanadate and the aqueous solution, the aqueous solution returns step 4 after adding the carbon ammonium.
Step 8, centrifuge dehydration is dried after the ammonium meta-vanadate centrifuge dehydration, and with entering step 7 after the 1% ammonium chloride solution drip washing, the aqueous solution returns step 4 after adding the carbon ammonium.
Step 9: the vacuum electric field takes off ammonium, adopts the electric heating infrared heat to decompose metavanadic acid and makes Vanadium Pentoxide in FLAKES, 250 ℃～450 ℃ of temperature, reaction process: 2NH 4VO 3→ V 2O 5+ 2NH 3↑+H 2O (steam) ↑.The product purity that obtains is greater than 99.95%.Ammonia absorbs with 2～4N dilute hydrochloric acid, NH 3+ HCl+H 2O=NH 4Cl+H 2O, ammonium chloride reclaim and are used for producing again.

Claims (10)

1. an electric field decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that:
Step 1: will contain navajoite stone and pulverize, levigate to 100 to 250 purposes contain the navajoite powder;
Step 2: will above-mentionedly contain navajoite powder and electrolytic solution mixing furnishing liquid, starch admittedly than the navajoite that contains that is 1: 1.5～2;
Step 3: the above-mentioned navajoite slurry of containing is put into the alternating-electric field decomposer and is carried out electrolysis, start power supply after, the voltage of electric field is 0～110V, electric current is 0～3000A, the discharge resolving time is 30～90 minutes, contains the navajoite slurry and is when doing solid state and stops;
Step 4: in doing the solid state ore pulp, add water towards rare one-tenth liquid, starch admittedly than the navajoite that contains that is 1: 1.5～2;
Step 5: will contain in the navajoite slurry input barrier film extraction tank and carry out the barrier film extraction vanadium extraction, pH is 2～10, adopts tertiary amines trialkylamine N235 or quaternary ammonium chlorination trialkyl first ammonium N263 anion extractant, with 5% secondary octanol, and the dilution of 80% aviation kerosene;
Step 6: the load organic phases that obtains after the barrier film extraction enters carbon ammonium back extraction step, obtains containing vanadium clear liquid and blank organism after the back extraction, contains the vanadium clear liquid and enters step 7, and blank organism returns step 5;
Step 7: the above-mentioned pH that contains the vanadium clear liquid is adjusted to 3～8, adds the ammonium salt precipitation, heated and stirred, cooling and aging obtains the ammonium meta-vanadate and the aqueous solution, and the aqueous solution returns step 6 after adding the carbon ammonium.
2. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, and it is characterized in that: the electrolytic solution in step 2 is the dilute sulphuric acid of 2～4N.
3. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, and it is characterized in that: the electrolytic solution in step 2 is 10～15% soda ash solution.
4. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, and it is characterized in that: in step 3, the transformer of electric field decomposer is the fused salt variable-voltage transformer of voltage 0～110V, electric current 0～3000A.
5. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that: in step 5, the barrier film extraction is 3～5 grades, compare O/A=1/3, ore pulp after the extraction enters step 6, sediment obtains the waste and the aqueous solution after press filtration, the aqueous solution returns step 3; Waste is used as building materials, builds up fields.
6. electric field decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film according to claim 1 or 5, it is characterized in that: in step 5, sodium is reclaimed with electroosmose process in the saturated back of the sodium in the aqueous solution that sediment obtains after press filtration, and sulfuric acid is used for producing again.
7. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that: in step 6,2～3 grades of carbon ammonium back extractions, the back extraction of carbon ammonium compare O/A=4/1,5 grades of pre-equilibrations.
8. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that: in step 7, the Heating temperature that contains the vanadium clear liquid is 65 ℃～80 ℃, the ammonium salt that adds 1.6 times of theoretical amount, the ammonium salt that adds is ammonium chloride or ammonium sulfate, stirred cooling and aging 4 hours 15 minutes.
9. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that: after step 7, carry out step 8, the ammonium meta-vanadate centrifuge dehydration, ammonium meta-vanadate after the centrifuge dehydration is with 1% ammonium chloride solution drip washing, and the aqueous solution of deviating from returns step 6 after adding the carbon ammonium.
10. electric field according to claim 1 decomposes the method that Vanadium Pentoxide in FLAKES is produced in the extraction of navajoite slurry barrier film, it is characterized in that: after step 8, enter step 9, the vacuum electric field takes off ammonium, adopt the electric heating infrared heat to decompose metavanadic acid, Heating temperature is 250 ℃～450 ℃, make Vanadium Pentoxide in FLAKES, ammonia absorbs with 2～4N dilute hydrochloric acid, and ammonium chloride reclaims and is used for producing again.
CNB2007102001282A 2007-01-29 2007-01-29 Method for electrolyzing vanadium slurry and extracting vanadium pentexide using film Expired - Fee Related CN100422357C (en)

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CN105018970B (en) * 2014-04-24 2017-11-10 东北大学 A kind of method that thermoelectricity reduction prepares vanadium metal in fluoride smelt salt
CN105177298B (en) * 2015-10-19 2017-07-07 宁波大学 A kind of method that vanadium oxide is reclaimed in the denitrating catalyst from failure
CN110306043B (en) * 2019-07-01 2020-05-12 北京科技大学 Method for leaching vanadium in magnetic vanadium iron spinel type powder vanadium concentrate through normal-temperature electrooxidation
CN114307654A (en) * 2021-11-29 2022-04-12 中国科学技术大学 Continuous preparation device of vanadium pentoxide

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6241716A (en) * 1985-08-12 1987-02-23 インスチチユ−ト　メタルルルギイ　イ　オボガスチエニア　アカデミイ　ナウク　カザクスコイ　エスエスア−ル Treatment of used vanadium-containing catalyst
CN1049642A (en) * 1990-07-12 1991-03-06 江西省煤炭工业科学研究所 Stone coal ash sulfuric acid is mixed the acid slaking water logging of heating and is extracted the vanadium pentoxide technical process
WO1999045160A1 (en) * 1998-03-06 1999-09-10 Treibacher Industrie Ag Method for electrochemical oxidation of vanadium in aqueous solutions and method to obtain vanadium pentoxide
CN1321782A (en) * 2000-04-28 2001-11-14 四川川投峨眉铁合金（集团）有限责任公司 Wet process for extracting vanadium from waste catalyst
CN1724387A (en) * 2005-06-22 2006-01-25 株洲市湘麒科技开发有限公司 Process for extracting vanadium pentoxide from stone coal vanadium mining
CN1782108A (en) * 2004-11-30 2006-06-07 戴许斌 Method for producing vanadium by stone coal compound calcifying baking-low acid leaching-special ion exchanging

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6241716A (en) * 1985-08-12 1987-02-23 インスチチユ−ト　メタルルルギイ　イ　オボガスチエニア　アカデミイ　ナウク　カザクスコイ　エスエスア−ル Treatment of used vanadium-containing catalyst
CN1049642A (en) * 1990-07-12 1991-03-06 江西省煤炭工业科学研究所 Stone coal ash sulfuric acid is mixed the acid slaking water logging of heating and is extracted the vanadium pentoxide technical process
CN1023693C (en) * 1990-07-12 1994-02-09 江西省煤炭工业科学研究所 Process for extracting of vanadium pentoxide by water immersion from cured mixture of stone coal ash with surfuric acid by heating
WO1999045160A1 (en) * 1998-03-06 1999-09-10 Treibacher Industrie Ag Method for electrochemical oxidation of vanadium in aqueous solutions and method to obtain vanadium pentoxide
CN1321782A (en) * 2000-04-28 2001-11-14 四川川投峨眉铁合金（集团）有限责任公司 Wet process for extracting vanadium from waste catalyst
CN1782108A (en) * 2004-11-30 2006-06-07 戴许斌 Method for producing vanadium by stone coal compound calcifying baking-low acid leaching-special ion exchanging
CN1724387A (en) * 2005-06-22 2006-01-25 株洲市湘麒科技开发有限公司 Process for extracting vanadium pentoxide from stone coal vanadium mining

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