CN108996547B - Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching - Google Patents

Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching Download PDF

Info

Publication number
CN108996547B
CN108996547B CN201811010918.9A CN201811010918A CN108996547B CN 108996547 B CN108996547 B CN 108996547B CN 201811010918 A CN201811010918 A CN 201811010918A CN 108996547 B CN108996547 B CN 108996547B
Authority
CN
China
Prior art keywords
vanadium
tailings
titanium tetrachloride
ultrasonic
leaching
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.)
Active
Application number
CN201811010918.9A
Other languages
Chinese (zh)
Other versions
CN108996547A (en
Inventor
周丽
李良
李明
陆平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panzhihua Iron And Steel Group Panzhihua Iron And Steel Research Institute Co Ltd
Chengdu Advanced Metal Materials Industry Technology Research Institute Co Ltd
Original Assignee
Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd filed Critical Pangang Group Panzhihua Iron and Steel Research Institute Co Ltd
Priority to CN201811010918.9A priority Critical patent/CN108996547B/en
Publication of CN108996547A publication Critical patent/CN108996547A/en
Application granted granted Critical
Publication of CN108996547B publication Critical patent/CN108996547B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C01INORGANIC CHEMISTRY
    • C01GCOMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
    • C01G31/00Compounds of vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B34/00Obtaining refractory metals
    • C22B34/20Obtaining niobium, tantalum or vanadium
    • C22B34/22Obtaining vanadium
    • CCHEMISTRY; METALLURGY
    • C22METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22BPRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006Wet processes
    • C22B7/008Wet processes by an alkaline or ammoniacal leaching
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

Abstract

The invention relates to a method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching, belonging to the technical field of vanadium chemical metallurgy. The invention solves the technical problems of environmental pollution and vanadium loss when titanium tetrachloride refined tailings are stacked. The technical scheme of the invention is to provide a method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching, which comprises the steps of a, mixing the titanium tetrachloride refined tailings with alkali liquor, and introducing oxygen to carry out leaching reaction under the ultrasonic condition; b. performing solid-liquid separation to obtain vanadium-containing leaching solution and tailings; c. and rapidly cooling the vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. The invention reduces the roasting process and the energy consumption, is a cleaner vanadium extraction method, and has the leaching rate of vanadium of 85-98.5 percent.

Description

Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching
Technical Field
The invention belongs to the technical field of vanadium chemical metallurgy, and particularly relates to a method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching.
Background
Vanadium is an important strategic resource and is an indispensable important material for developing modern industry, modern national defense and modern scientific technology. The application amount of vanadium in steel accounts for about 90% of the total consumption amount of vanadium, and vanadium-containing high-strength low-alloy steel (HSLA) is widely applied to production and construction of oil/gas pipelines, buildings, bridges, steel rails, pressure vessels, carriage frames and the like due to high strength of the alloy steel. Vanadium is used in non-ferrous alloys mainly for the production of vanadium-titanium alloys and is also an excellent high temperature structural material for the manufacture of aircraft and rockets.
The vanadium titano-magnetite in Panxi area has rich resources, the crude titanium tetrachloride obtained by chlorination process has high vanadium content (5-8 per mill), and the vanadium titano-magnetite is generally removed by refining process. VOCl generated in the process of refining vanadium2Or the low-valent chloride of vanadium and other solid impurities are separated out in the form of residue, the obtained residue contains titanium tetrachloride, the residue is recovered by adopting an evaporation concentration mode, and after the titanium tetrachloride is recovered by evaporation, the residual tailings are called titanium tetrachloride refined tailings, and are one of typical solid wastes in the production process of the titanium tetrachloride. The titanium industry company of Panzhi Steel group generates about 400t titanium tetrachloride refining tailings every year, a large amount of hydrochloric acid is released in the stacking process, the environment is seriously polluted, and the vanadium content in the slag is high (about 10-18 per thousand), so that the resource waste is also caused.
Patent document CN103911517A discloses a method for preparing TiCl4The method for producing the vanadium-containing clinker by refining the tailings comprises the steps of carrying out water leaching treatment and solid-liquid separation, mixing obtained solids with sodium salt, and recycling titanium tetrachloride refining tailings by adopting a high-temperature calcination mode.
Mala et al reported nonferrous metals 2017(7) in research on comprehensive utilization of titanium tetrachloride refined tailings, namely, alkaline leaching of titanium tetrachloride refined tailings, performing multi-component efficient separation in a leaching solution, separating aluminum from vanadium in the form of aluminum slag by using a precipitant, and separating sodium chloride from sodium orthovanadate by fractional crystallization to prepare the sodium orthovanadate from the vanadium in the refined tailings. The scheme is not only complex in process flow, but also not suitable for titanium tetrachloride refining tailings with low aluminum content.
Patent document CN104017993A discloses a method for preparing vanadium oxide from sodium salt roasting leachate of titanium tetrachloride refined tailings, wherein an aluminum removing agent and an adsorbent are added into the heated sodium salt roasting leachate of titanium tetrachloride refined tailings to remove impurities, and then the mixture is filtered to obtain a purified solution; adding soluble ammonium salt into the purified solution to carry out vanadium precipitation, then filtering to obtain ammonium metavanadate precipitate, and washing, drying and calcining the ammonium metavanadate precipitate to obtain vanadium pentoxide. However, the method of roasting before leaching easily causes secondary pollution to the environment in the vanadium extraction process, harmful tail gas is generated, and the energy consumption is increased in the roasting process.
Disclosure of Invention
The invention solves the technical problems of environmental pollution and vanadium loss when titanium tetrachloride refined tailings are stacked.
The technical scheme for solving the problems is to provide the method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching, which comprises the following steps:
a. mixing titanium tetrachloride refined tailings with alkali liquor, and introducing oxygen under the ultrasonic condition to carry out leaching reaction;
b. carrying out solid-liquid separation on the slurry obtained after the reaction in the step a to obtain vanadium-containing leaching solution and tailings;
c. and (c) rapidly cooling the vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and then returning the obtained crystallized residual liquid to the step (a) for recycling.
Wherein, the titanium tetrachloride refined tailings in the step a refer to tailings obtained by refining crude titanium tetrachloride produced by a chlorination method to remove vanadium, and then evaporating, concentrating and recovering titanium tetrachloride.
Wherein the titanium tetrachloride refined tailings in the step a comprise, by mass, 10-18% of TV (all vanadium), 10-18% of Ti, 3-15% of Cl, 0.02-0.08% of Si, 0.1-0.8% of Fe and 0.1-0.3% of Al.
Wherein, the alkali liquor in the step a is at least one of sodium peroxide, sodium hydroxide, sodium carbonate and sodium bicarbonate.
And c, the liquid-solid ratio of the alkali liquor to the titanium tetrachloride refining tailings in the step a is (2-7) to 1, the volume of liquid in the liquid-solid ratio is calculated by ml, and the mass of solid is calculated by g.
Wherein the alkali liquor in the step a is sodium hydroxide solution, and the concentration is 10-50 wt%.
Wherein the pressure of oxygen gas introduced in the step a is 0.1-1 MPa.
Wherein, the ultrasonic frequency in the step a is controlled to be 25-40 KHz, and the power is 50-600W.
Wherein, the reaction temperature of the step a is 110-200 ℃, and the reaction time is 0.5-4 h.
Wherein the temperature of solid-liquid separation in the step b is 70-90 ℃.
The invention has the beneficial effects that:
the method adopts the method of the synergistic effect of the ultrasonic wave and the alkaline leaching to extract the vanadium in the titanium tetrachloride refined tailings, not only reduces the roasting process in the conventional vanadium extraction process and reduces the energy consumption, but also has no harmful gas in the whole vanadium recovery process, is a cleaner vanadium extraction method, has the vanadium leaching rate of 85-98.5 percent, and simultaneously lightens the environmental pollution of the titanium tetrachloride refined tailings for a long time.
Detailed Description
The ultrasonic wave is composed of a series of longitudinal waves with alternate density and is transmitted to the periphery through a liquid medium. The ultrasonic wave can form a strong mechanical stirring effect between interfaces, and the effect can break through the limitation of a laminar boundary layer, so that the chemical reaction process and the transmission process between the interfaces are enhanced. The invention adopts the process of ultrasonic and alkaline leaching in the process of extracting vanadium from the refined tailings, and utilizes ultrasonic to strengthen the chemical reaction process and the transmission process among interfaces of the refined tailings, alkali liquor and oxygen, so as to oxidize the low-valence vanadium in the tailings into pentavalent vanadium and transfer the pentavalent vanadium into the leaching solution.
The invention provides a method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkali leaching, which comprises the following steps:
a. mixing titanium tetrachloride refined tailings with alkali liquor, and introducing oxygen under the ultrasonic condition to carry out leaching reaction;
b. carrying out solid-liquid separation on the slurry obtained after the reaction in the step a to obtain vanadium-containing leaching solution and tailings;
c. and (c) rapidly cooling the vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and then returning the obtained crystallized residual liquid to the step (a) for recycling.
Wherein, the reaction mainly generated in the step a is as follows:
V3++O2+4OH-=VO4 3-+2H2O
4VOCl2+O2+20OH-=4VO4 3-+8Cl-+10H2O
wherein, the titanium tetrachloride refined tailings are tailings obtained by refining crude titanium tetrachloride produced by a chlorination method to remove vanadium, and then evaporating, concentrating and recovering titanium tetrachloride.
Wherein the titanium tetrachloride refined tailings comprise, by mass, 10-18% of TV, 10-18% of Ti, 3-15% of Cl, 0.02-0.08% of Si, 0.1-0.8% of Fe, and 0.1-0.3% of Al.
Wherein the alkali solution is at least one of sodium peroxide, sodium hydroxide, sodium carbonate and sodium bicarbonate.
Wherein the liquid-solid ratio of the alkali liquor to the titanium tetrachloride refining tailings is (2-7) to 1.
Wherein the alkali liquor is preferably sodium hydroxide solution with the concentration of 10-50 wt%.
Wherein the pressure of oxygen is 0.1-1 MPa.
Wherein, the ultrasonic frequency is controlled to be 25-40 KHz, and the power is controlled to be 50-600W. The frequency of the ultrasonic waves is specifically the number of waves with specific wavelengths emitted in one second, the ultrasonic effect is more obvious when the frequency is larger, the power of the ultrasonic waves is in direct proportion to the amplitude, and the larger the power is, the stronger the amplitude is, and the more obvious the ultrasonic effect is.
Preferably, the power is 200-400W.
Wherein the leaching temperature is controlled to be 110-200 ℃, and the time is 0.5-4 h.
Wherein the temperature of solid-liquid separation is 70-90 ℃.
Example 1:
adding titanium tetrachloride refined tailings and 20 wt% of sodium hydroxide solution into a reactor according to a liquid-solid ratio of 7:1, introducing oxygen, heating, carrying out alkaline leaching in an ultrasonic environment at a constant temperature of 110 ℃, controlling the oxygen partial pressure to be 0.2MPa, the ultrasonic frequency to be 25KHz, the power to be 200W, and the reaction time to be 0.5 h; keeping the temperature of the reactor at 70 ℃, and filtering and separating the obtained mixed slurry to obtain vanadium-containing leaching solution and tailings; and rapidly cooling the obtained vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. Through detection, the leaching rate of vanadium is 85%.
Example 2:
adding titanium tetrachloride refined tailings and 20 wt% of sodium hydroxide solution into a reactor according to a liquid-solid ratio of 7:1, introducing oxygen, heating, carrying out alkaline leaching in an ultrasonic environment, controlling the oxygen partial pressure to be 0.3MPa, keeping the temperature at 110 ℃, carrying out ultrasonic frequency of 40KHz, carrying out power of 200W, and carrying out reaction for 0.5 h; keeping the temperature of the reactor at 70 ℃, and filtering and separating the obtained mixed slurry to obtain vanadium-containing leaching solution and tailings; and rapidly cooling the obtained vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. The detection shows that the leaching rate of vanadium is 89.6%.
Example 3:
adding titanium tetrachloride refined tailings and 50 wt% of sodium hydroxide solution into a reactor according to a liquid-solid ratio of 7:1, introducing oxygen, heating, carrying out alkaline leaching in an ultrasonic environment at a constant temperature of 200 ℃, controlling the oxygen partial pressure to be 0.3MPa, controlling the ultrasonic frequency to be 40KHz, controlling the power to be 200W, and reacting for 4 hours; keeping the temperature of the reactor at 90 ℃, and filtering and separating the obtained mixed slurry to obtain vanadium-containing leaching solution and tailings; and rapidly cooling the obtained vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. Through detection, the leaching rate of vanadium is 92.4%.
Example 4:
adding titanium tetrachloride refined tailings and 20 wt% of sodium hydroxide solution into a reactor according to a liquid-solid ratio of 5:1, introducing oxygen, heating, carrying out alkaline leaching in an ultrasonic environment at a constant temperature of 200 ℃, controlling the oxygen partial pressure to be 0.5MPa, controlling the ultrasonic frequency to be 40KHz, controlling the power to be 200W, and reacting for 0.5 h; keeping the temperature of the reactor at 90 ℃, and filtering and separating the obtained mixed slurry to obtain vanadium-containing leaching solution and tailings; and rapidly cooling the obtained vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. Through detection, the leaching rate of vanadium is 95%.
Example 5:
adding titanium tetrachloride refined tailings and 20 wt% of sodium hydroxide solution into a reactor according to a liquid-solid ratio of 2:1, introducing oxygen, heating, carrying out alkaline leaching in an ultrasonic environment, controlling the oxygen partial pressure to be 1MPa, keeping the temperature at 200 ℃, carrying out ultrasonic frequency of 40KHz and power of 600W, and reacting for 4 h; keeping the temperature of the reactor at 90 ℃, and filtering and separating the obtained mixed slurry to obtain vanadium-containing leaching solution and tailings; and rapidly cooling the obtained vanadium-containing leaching solution to obtain sodium vanadate crystals and crystallized liquid, and returning the obtained crystallized residual liquid to the ultrasonic-assisted alkaline leaching step again for recycling. Through detection, the leaching rate of vanadium is 98.5%.

Claims (8)

1. The method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching is characterized by comprising the following steps of:
a. mixing titanium tetrachloride refined tailings with alkali liquor, introducing oxygen under the ultrasonic condition to carry out leaching reaction, oxidizing low-valence vanadium in the tailings into pentavalent vanadium, transferring the pentavalent vanadium into a leaching solution, refining the crude titanium tetrachloride produced by a chlorination method to remove vanadium, evaporating, concentrating and recovering titanium tetrachloride to obtain the tailings, wherein the tailings comprise 10-18% of TV, 10-18% of Ti, 3-15% of Cl, 0.02-0.08% of Si, 0.1-0.8% of Fe and 0.1-0.3% of Al in terms of element mass percentage;
b. carrying out solid-liquid separation on the slurry obtained after the reaction in the step a to obtain vanadium-containing leaching solution and tailings;
c. and (b) rapidly cooling the vanadium-containing leaching solution to obtain sodium vanadate crystals and residual solution after crystallization, and then returning the obtained residual solution after crystallization to the step a for recycling.
2. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: the alkali liquor in the step a is at least one of sodium peroxide, sodium hydroxide, sodium carbonate and sodium bicarbonate.
3. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: the liquid-solid ratio of the alkali liquor to the titanium tetrachloride refining tailings in the step a is (2-7) to 1.
4. The method for extracting vanadium from the titanium tetrachloride refining tailings by ultrasonic-assisted alkali leaching according to any one of claims 1 to 3, characterized by comprising the following steps: the alkali liquor in the step a is sodium hydroxide, and the concentration is 10-50 wt%.
5. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: and (b) introducing oxygen at the pressure of 0.1-1 MPa.
6. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: and a, controlling the ultrasonic frequency of the step a to be 25-40 KHz and controlling the power to be 50-600W.
7. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: and (b) leaching reaction temperature of the step a is 110-200 ℃, and reaction time is 0.5-4 h.
8. The method for extracting vanadium from titanium tetrachloride refined tailings by ultrasonic-assisted alkali leaching is characterized by comprising the following steps of: and c, performing solid-liquid separation at the temperature of 70-90 ℃.
CN201811010918.9A 2018-08-31 2018-08-31 Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching Active CN108996547B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811010918.9A CN108996547B (en) 2018-08-31 2018-08-31 Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811010918.9A CN108996547B (en) 2018-08-31 2018-08-31 Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching

Publications (2)

Publication Number Publication Date
CN108996547A CN108996547A (en) 2018-12-14
CN108996547B true CN108996547B (en) 2020-08-18

Family

ID=64591322

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811010918.9A Active CN108996547B (en) 2018-08-31 2018-08-31 Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching

Country Status (1)

Country Link
CN (1) CN108996547B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112281000A (en) * 2020-10-29 2021-01-29 攀钢集团研究院有限公司 Method for extracting vanadium from titanium tetrachloride refining tailings

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102329964B (en) * 2011-09-08 2014-01-15 中国科学院过程工程研究所 Method for separating and recovering vanadium and chromium from vanadium-chromium reduced waste residue
CN104004920A (en) * 2014-06-11 2014-08-27 攀钢集团攀枝花钢铁研究院有限公司 Method for extracting vanadium from titanium tetrachloride refined tailings
CN107032400B (en) * 2017-04-27 2019-01-22 攀钢集团研究院有限公司 TiCl4The method that purification tailings alkali is soaked standby high-purity vanadium oxide
CN106929696A (en) * 2017-04-27 2017-07-07 攀钢集团研究院有限公司 TiCl4Refine method of the tailings ammonium soak for high-purity vanadium oxide
CN107236866B (en) * 2017-06-22 2020-04-03 中国科学院过程工程研究所 Method for pressure strengthening vanadium extraction from vanadium-containing steel slag
CN107892317B (en) * 2017-11-14 2020-02-04 河钢股份有限公司承德分公司 Method for recovering vanadium in calcified vanadium precipitation tailings and preparing nano calcium carbonate

Also Published As

Publication number Publication date
CN108996547A (en) 2018-12-14

Similar Documents

Publication Publication Date Title
CN102586612A (en) Method for recovering vanadium and chromium from vanadium and chromium-containing slag
CN103757425A (en) Cleaning process for producing sodium vanadate and sodium chromate alkali solution by high chromium vanadium slag
CN103952565A (en) Method used for preparing ammonium metavanadate from vanadium slag via ammonium salt leaching
CN107236866B (en) Method for pressure strengthening vanadium extraction from vanadium-containing steel slag
CN112095003B (en) Method for recycling various valuable metals and acid-base double-medium regeneration cycle from laterite-nickel ore
CN102220478A (en) Preparation method for vanadium pentoxide
CN109022800B (en) Ultrasonic-assisted preparation of high-purity V from titanium tetrachloride refining tailings2O5Method (2)
CN108996547B (en) Method for extracting vanadium from titanium tetrachloride refining tailings by ultrasonic-assisted alkaline leaching
CN107236871A (en) A kind of method for mixing vanadium slag and v-bearing steel slag pressurization vanadium extraction
CN111394569A (en) Roasting method for producing vanadium pentoxide
CN105110300A (en) Method for extracting manganese and sulfur from composite manganese mine containing manganese sulfide
US20200370145A1 (en) Process for recovering vanadium in the form of iron vanadate from a gasifier slag
CN105821221B (en) A method of the vanadium product of clean manufacturing containing vanadium raw materials
CN102220499A (en) Roasting-leaching method of fine vanadium slags
CN107287431A (en) A kind of method for reclaiming vanadium in vanadium containing steel slag element
CN102220495B (en) Method for purifying vanadium-precipitating mother liquor
CN107287453B (en) Method for extracting vanadium from vanadium-containing steel slag by ion replacement method
CN112111661B (en) Method for extracting vanadium by calcium-manganese composite roasting of vanadium slag
CN112795784B (en) Method for comprehensively recovering valuable components in red mud
CN107663585A (en) The method of low-quality vanadium slag upgrading
CN112342389A (en) Method for recovering valuable metal from waste chemical catalyst
CN110563009A (en) Method for preparing battery-grade lithium carbonate from fly ash by carbonization decomposition method
CN102220498A (en) Method for preparing fine vanadium slag
CN110042248A (en) The method for preparing ferric vandate as raw material using dephosphorization mud
CN113416847B (en) Method for recycling, reducing and harmlessly treating vanadium extraction tailings

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20220704

Address after: 610306 Chengdu City, Chengdu, Sichuan, China (Sichuan) free trade test zone, Chengdu City, Qingbaijiang District, xiangdao Boulevard, Chengxiang Town, No. 1509 (room 13, A District, railway port mansion), room 1319

Patentee after: Chengdu advanced metal material industry technology Research Institute Co.,Ltd.

Patentee after: Panzhihua Iron and Steel Group Panzhihua iron and Steel Research Institute Co., Ltd.

Address before: 617000 Taoyuan street, East District, Panzhihua, Sichuan Province, No. 90

Patentee before: PANGANG GROUP PANZHIHUA IRON & STEEL RESEARCH INSTITUTE Co.,Ltd.

TR01 Transfer of patent right