CN102094123A - Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium - Google Patents
Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium Download PDFInfo
- Publication number
- CN102094123A CN102094123A CN2011100077156A CN201110007715A CN102094123A CN 102094123 A CN102094123 A CN 102094123A CN 2011100077156 A CN2011100077156 A CN 2011100077156A CN 201110007715 A CN201110007715 A CN 201110007715A CN 102094123 A CN102094123 A CN 102094123A
- Authority
- CN
- China
- Prior art keywords
- vanadium
- sodium hydroxide
- slag
- steel slag
- bearing steel
- 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
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 method for extracting vanadium from vanadium-containing steel slag by using a highly-alkaline sodium hydroxide medium, belonging to the technical field of metallurgy. The technical scheme comprises the following steps: adding steel slag, water and NaOH into a reactor together, wherein the mass concentration of the NaOH solution is 65-90%; decomposing and leaching under atmospheric pressure, and diluting the obtained slurry with a diluter to obtain a slurry mixture; and separating the slurry mixture by filtering at constant temperature, and washing the slag with a washing solution to obtain tailings and a vanadium-containing water solution. The method provided by the invention can be implemented under atmospheric pressure at low temperature (greatly lower than the roasting temperature in the traditional pyrogenic process), and is easy to operate and safe; and the extraction rate of vanadium is greatly higher than that of the existing vanadium recovery technique based on the pyrogenic process and wet process, the one-time recovery rate of vanadium is 85-90%, and the total content of vanadium in the tailings is 0.3-0.6 wt%. The invention solves the problem that vanadium in the vanadium-containing steel slag can not be easily recovered, and has the advantages of high recovery rate of vanadium, low production cost, favorable economic benefit and environmental benefit, and the like.
Description
Technical field
The sodium hydroxide medium that the present invention relates to the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag, belong to metallurgical technology field.
Background technology
V-bearing steel slag be vanadium-bearing hot metal because of various reasons the formed V2O5 of containing of (not oxidised vanadium extraction operation) direct steelmaking (normal slag making) compare its calcium contents with normal vanadium slag and exceed standard greatly at 2% ~ 10% v-bearing steel slag.Because its calcium, iron level height, content of vanadium is lower, vanadium occurrence status complexity, disperse be distributed in multi mineral mutually in, make vanadium wherein be difficult to recycle by traditional pyrogenic process roasting extraction process.There is millions of tons of v-bearing steel slag dischargings every year in China and not processed, and the not still loss of vanadium resource has also caused environmental pressure.Though existing process for extracting vanadium is many, is difficult to adapt to the resource characteristics of v-bearing steel slag, and ubiquity cost height, pollutes and problems such as weigh, the rate of recovery is low.Traditional wet method process for extracting vanadium mainly adopts sodium or calcification baking to add the leaching method vanadium extraction.The commentaries on classics of sodium roast technology vanadium soaks that rate is lower, and the sodium salt consumption is big, the maturing temperature height, and energy consumption is big, and this technology and be not suitable for containing the high basicity slag vanadium extraction that the vanadium grade is low, CaO is high.Calcification baking has certain selectivity to material, and there are problems such as transformation efficiency is on the low side, cost is higher in general slag, is unsuitable for mass production.In addition, adopt pyrometallurgical smelting to reclaim vanadium in the slag in addition, this technology is v-bearing steel slag to be added in the agglomerate enter blast-furnace smelting as flux, vanadium is enrichment in molten iron, the molten iron vanadiumcontent is increased, and blowing obtains high-grade vanadium slag again, produces V2O5 or ferro-vanadium with this.This method easily produces the circulation enrichment in molten iron of phosphorus, sulphur, increases the weight of to make steel dephosphorization sulphur task.In addition, slag impurity is many, and the content of free calcium oxide is relatively low, can reduce grade of sinter, increases the iron manufacturing process energy consumption, should not allocate in a large number, so this technology does not reach the demand of actual production to the treatment capacity of v-bearing steel slag.And some emerging technologies such as selectivity are separated out, microorganism leaching, in-pulp electrolysis etc., are used for the research of v-bearing steel slag vanadium extraction, though effect is better, technology is still immature, and therefore the process for extracting vanadium to v-bearing steel slag has significant limitation.
Summary of the invention
The object of the present invention is to provide the sodium hydroxide medium of the high basicity of a kind of usefulness from v-bearing steel slag, to extract the method for vanadium, rate of recovery height (85% ~ 90%) to vanadium in the v-bearing steel slag, extraction temperature low (180 ~ 240 ℃), the slag treatment process can be carried out under the wet method condition, do not need high-temperature roasting, shorten the reaction times, realize the single high efficiency extraction of vanadium, solve the problems referred to above that background technology exists.
Technological method of the present invention is as follows:
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag, comprise following technological process: wear into-100 purpose powders behind the particle of slag raw material crushing for≤20mm, add reactor with water, sodium hydroxide medium, wherein, the mass ratio of sodium hydroxide and slag be 3:1 to 5:1, the mass concentration of sodium hydroxide medium (useful effect concentration) is 65 ~ 90%; Decompose stripping in condition of normal pressure, 180 ~ 240 ℃ of temperature of reaction, effective reaction time 1 ~ 6h; Again the reaction paste that obtains is diluted with thinner, obtain containing the mixed slurry of sodium hydroxide, vanadic acid sodium, water glass and tailings; Basicity 100 ~ the 400g/L of ore pulp is leached in control, at 80 ~ 130 ℃ mixed slurry is incubated filtering separation, adopts washing composition to wash to slag, obtains the tailings and the aqueous solution that contains vanadium, finishes removal of impurities and vanadium recovery with ordinary method then.
Said sodium hydroxide medium is to be matrix with sodium hydroxide, comprises the sodium salt blending agent of pure cerium hydroxide sodium and sodium hydroxide and different proportionings, and sodium salt comprises SODIUMNITRATE, yellow soda ash, sodium-chlor etc.
At different v-bearing steel slags, the reaction conditions difference contains the slag of vanadium of high price oxidation state, be reflected under the condition that does not need to feed any gas to carry out, and promptly in uncovered normal pressure reactor recyclable vanadium; Contain the slag of the vanadium of oxidation state at a low price, need to feed oxidizing gas, for example air or oxygen.
Used thinner is water or dilute alkaline soln.
Used washing composition is the solution that contains alkali 100 ~ 400g/L.
Beneficial effect of the present invention: temperature of reaction of the present invention low (180 ~ 240 ℃), solubility rate height (85% ~ 90%), the slag treatment process can be carried out under the wet method condition, do not need high-temperature roasting, low-temperature atmosphere-pressure just can carry out down, shorten the reaction times, easy handling, technology is simple and security good, realizes the single high efficiency extraction of vanadium; And atmospheric polluting materials such as the Cl2 that roasting brings, H Cl, dust, SO2 in the vanadium extraction process, have effectively been stopped.In addition, in leaching process, the liquid phase that produces is returned and is leached the operation recycle, effectively reduce the generation and the quantity discharged of waste water, from solved traditional roasting process for extracting vanadium temperature of reaction height (energy consumption height) at all, to vanadium the v-bearing steel slag, be difficult to recovery and recycling, problem such as vanadium recovery is low, three wastes discharge amount is big, have that production cost is low, an advantage such as economic benefit and environmental benefit are good.
Description of drawings
Fig. 1 is the process flow sheet of the embodiment of the invention.
Embodiment
Below in conjunction with accompanying drawing, technical scheme of the present invention is further described by embodiment.
In the various embodiments of the present invention, v-bearing steel slag is a bessemer furnace slag, and its Chemical Composition is as follows:
TiO2?=4.82%；?MnO=?1.70%；?TFe?=15.27%；?S?=0.281?%；V2O5?=3.63?%；Cr2O3=?1.18%；?FeO?=7.76?%；Al2O3=?2.79%；SiO2=?11.23%；?CaO?=44.51%；?MgO?=11.80%；?P=?0.594% 。
NaOH selects analytical pure or technical pure for use, and technical pure NaOH contains sodium hydroxide 96.0%, yellow soda ash 1.3%, sodium-chlor 2.7%.
Embodiment 1:
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag: take by weighing solid industry NaOH 200g in reactor, the deionized water that adds 50mL is to starting point concentration 60%, open stirring, stirring velocity 600rpm, heat temperature raising to 200 ℃, take by weighing in 50g v-bearing steel slag and the reactor reaction times 6h; Reaction end adds entry 400mL dilution in reactor, filtered off with suction, the basicity of liquid phase are 345g/L, and slag is carried out three washings; Adopt chemistry and instrumental analysis analysis slag mutually, the content of liquid phase vanadium, contain in the tailings vanadium total amount at 0.435wt%(in Vanadium Pentoxide in FLAKES), the leaching yield of gained vanadium is 87.5%.
Embodiment 2:
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag: take by weighing the pure NaOH 200g of solid analysis in reactor, the deionized water that adds 50mL is to starting point concentration 80%, open stirring, stirring velocity 600rpm, heat temperature raising to 240 ℃, take by weighing in 50g v-bearing steel slag and the reactor reaction times 4h.Reaction end adds entry 400mL dilution in reactor, filtered off with suction, the basicity of liquid phase are 356.5g/L, and slag is carried out three washings; Adopt chemistry and instrumental analysis slag mutually, the content of liquid phase vanadium, contain in the tailings vanadium total amount at 0.338wt%(in Vanadium Pentoxide in FLAKES), the leaching yield of gained vanadium is 90.3%.
Embodiment 3
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag: take by weighing the pure NaOH 175g of solid analysis, NaNO3 25g is in reactor, and the deionized water that adds 50mL is to initial alkali concn 70%, SODIUMNITRATE starting point concentration 10%; Open stirring, stirring velocity 600rpm, heat temperature raising to 220 ℃ takes by weighing in 50g v-bearing steel slag and the reactor reaction times 5h; Reaction end adds entry 400mL dilution in reactor, filtered off with suction, the basicity of liquid phase are 346.40g/L, and slag is carried out three washings; Adopt chemistry and instrumental analysis analysis slag mutually, the content of liquid phase vanadium.Contain in the tailings vanadium total amount at 0.452wt%(in Vanadium Pentoxide in FLAKES), the leaching yield of gained vanadium is 87%.
Embodiment 4
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag: take by weighing the pure NaOH 200g of solid analysis in reactor, the deionized water that adds 50mL is to starting point concentration 80%, open stirring, stirring velocity 600rpm, heat temperature raising to 180 ℃, take by weighing in 50g v-bearing steel slag and the reactor reaction times 5h; Reaction end adds entry 400mL dilution in reactor, filtered off with suction, the basicity of liquid phase are 335.40g/L, and slag is carried out three washings; Adopt chemistry and instrumental analysis analysis slag mutually, the content of liquid phase vanadium.Contain in the tailings vanadium total amount at 0.622wt%(in Vanadium Pentoxide in FLAKES), the leaching yield of gained vanadium is 82.1%.
Embodiment 5
The sodium hydroxide medium of the high basicity of a kind of usefulness extracts the method for vanadium from v-bearing steel slag: take by weighing in pure NaOH 200g of solid analysis and the reactor, the deionized water that adds 50mL is to starting point concentration 90%, open stirring, stirring velocity 600rpm, heat temperature raising to 180 ℃, take by weighing in 50g v-bearing steel slag and the reactor reaction times 5h; Reaction end adds entry 400mL dilution in reactor, filtered off with suction, the basicity of liquid phase are 335.40g/L, and slag is carried out three washings; Adopt chemistry and instrumental analysis analysis slag mutually, the content of liquid phase vanadium.The leaching yield of gained vanadium is 82.1%.
Claims (8)
1. method of from v-bearing steel slag, extracting vanadium with the sodium hydroxide medium of high basicity, it is characterized in that comprising following technological process: wear into-100 purpose powders behind the particle of slag raw material crushing for≤20mm, add reactor with water, sodium hydroxide medium, wherein, the mass ratio of sodium hydroxide and slag be 3:1 to 5:1, the mass concentration of sodium hydroxide medium is 65 ~ 90%; Decompose stripping in condition of normal pressure, 180 ~ 240 ℃ of temperature of reaction, effective reaction time 1 ~ 6h; Again the reaction paste that obtains is diluted with thinner, obtain containing the mixed slurry of sodium hydroxide, vanadic acid sodium, water glass and tailings; Basicity 100 ~ the 400g/L of ore pulp is leached in control, at 80 ~ 130 ℃ mixed slurry is incubated filtering separation, adopts washing composition to wash to slag, obtains the tailings and the aqueous solution that contains vanadium, finishes removal of impurities and vanadium recovery with ordinary method then.
2. from v-bearing steel slag, extract the method for vanadium with the sodium hydroxide medium of the high basicity of described usefulness according to claim 1, it is characterized in that said sodium hydroxide medium is is matrix with sodium hydroxide, comprise the sodium salt blending agent of pure cerium hydroxide sodium and sodium hydroxide and different proportionings.
3. the sodium hydroxide medium of the high basicity of usefulness according to claim 1 and 2 extracts the method for vanadium from v-bearing steel slag, it is characterized in that: the slag that contains the vanadium of high price oxidation state, being reflected under the condition that does not need to feed any gas and carrying out, promptly is recyclable vanadium in uncovered normal pressure reactor.
4. the sodium hydroxide medium of the high basicity of usefulness according to claim 1 and 2 extracts the method for vanadium from v-bearing steel slag, it is characterized in that: contain the slag of the vanadium of oxidation state at a low price, need to feed oxidizing gas.
5. from v-bearing steel slag, extract the method for vanadium according to the sodium hydroxide medium of the high basicity of the described usefulness of claim 2, it is characterized in that said sodium salt comprises SODIUMNITRATE, yellow soda ash, sodium-chlor.
6. from v-bearing steel slag, extract the method for vanadium according to the sodium hydroxide medium of the high basicity of the described usefulness of claim 4, it is characterized in that containing the slag of the vanadium of oxidation state at a low price, need bubbling air or oxygen.
7. the sodium hydroxide medium of the high basicity of usefulness according to claim 1 and 2 extracts the method for vanadium from v-bearing steel slag, it is characterized in that used thinner is water or dilute alkaline soln.
8. the sodium hydroxide medium of the high basicity of usefulness according to claim 1 and 2 extracts the method for vanadium from v-bearing steel slag, it is characterized in that used washing composition is the solution that contains alkali 100 ~ 400g/L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100077156A CN102094123B (en) | 2011-01-14 | 2011-01-14 | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100077156A CN102094123B (en) | 2011-01-14 | 2011-01-14 | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102094123A true CN102094123A (en) | 2011-06-15 |
| CN102094123B CN102094123B (en) | 2013-04-17 |
Family
ID=44127390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100077156A Active CN102094123B (en) | 2011-01-14 | 2011-01-14 | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102094123B (en) |
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251119A (en) * | 2011-07-04 | 2011-11-23 | 中国科学院过程工程研究所 | Method for recycling vanadium extraction tailings |
| CN102329964A (en) * | 2011-09-08 | 2012-01-25 | 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 |
| CN102329954A (en) * | 2011-08-09 | 2012-01-25 | 重庆大学 | Method for pretreating vanadium slag of converter by alkaline leaching and desiliconizing under action of electric field |
| CN102534232A (en) * | 2012-01-09 | 2012-07-04 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag under normal pressure by adding carbon-containing substance into sodium hydroxide solution |
| CN102732727A (en) * | 2012-05-23 | 2012-10-17 | 河北钢铁股份有限公司承德分公司 | Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag |
| CN102876896A (en) * | 2011-07-15 | 2013-01-16 | 中国科学院过程工程研究所 | Method for recovering vanadium by decomposing vanadium extraction tailings by using sodium hydroxide solution |
| CN103276227A (en) * | 2013-05-17 | 2013-09-04 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-titanium magnetite concentrates |
| CN105671327A (en) * | 2016-03-16 | 2016-06-15 | 河北钢铁股份有限公司承德分公司 | Method for removing sodium in vanadium-containing tailings under alkaline condition |
| CN107177740A (en) * | 2017-05-16 | 2017-09-19 | 河钢股份有限公司承德分公司 | A kind of method that aluminium is reclaimed from refining slag |
| CN107236870A (en) * | 2017-06-22 | 2017-10-10 | 中国科学院过程工程研究所 | A kind of method of v-bearing steel slag carbonization vanadium extraction |
| CN107236871A (en) * | 2017-06-22 | 2017-10-10 | 河钢股份有限公司承德分公司 | A kind of method for mixing vanadium slag and v-bearing steel slag pressurization vanadium extraction |
| CN107254587A (en) * | 2017-06-22 | 2017-10-17 | 河钢股份有限公司承德分公司 | A kind of utilization sodium acid carbonate decomposes the method that v-bearing steel slag reclaims vanadium |
| CN107287431A (en) * | 2017-06-22 | 2017-10-24 | 河钢股份有限公司承德分公司 | A kind of method for reclaiming vanadium in vanadium containing steel slag element |
| CN107287453A (en) * | 2017-06-22 | 2017-10-24 | 河钢股份有限公司承德分公司 | A kind of method of v-bearing steel slag ion exchange method vanadium extraction |
| CN110170249A (en) * | 2019-05-09 | 2019-08-27 | 昆明理工大学 | A kind of method of v-bearing steel slag calcining purification hydrogen sulfide flue gas |
| CN110396611A (en) * | 2019-07-25 | 2019-11-01 | 河钢股份有限公司承德分公司 | A method of recycling vanadium iron dedusting ash prepares sodium vanadate solution |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812588A (en) * | 2010-04-19 | 2010-08-25 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag with solution of potassium hydroxide under normal pressure |
-
2011
- 2011-01-14 CN CN2011100077156A patent/CN102094123B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101812588A (en) * | 2010-04-19 | 2010-08-25 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag with solution of potassium hydroxide under normal pressure |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102251119A (en) * | 2011-07-04 | 2011-11-23 | 中国科学院过程工程研究所 | Method for recycling vanadium extraction tailings |
| CN102251119B (en) * | 2011-07-04 | 2013-06-05 | 中国科学院过程工程研究所 | Method for recycling vanadium extraction tailings |
| CN102876896B (en) * | 2011-07-15 | 2013-10-16 | 中国科学院过程工程研究所 | Method for recovering vanadium by decomposing vanadium extraction tailings by using sodium hydroxide solution |
| CN102876896A (en) * | 2011-07-15 | 2013-01-16 | 中国科学院过程工程研究所 | Method for recovering vanadium by decomposing vanadium extraction tailings by using sodium hydroxide solution |
| CN102329954A (en) * | 2011-08-09 | 2012-01-25 | 重庆大学 | Method for pretreating vanadium slag of converter by alkaline leaching and desiliconizing under action of electric field |
| CN102329964A (en) * | 2011-09-08 | 2012-01-25 | 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 |
| 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 |
| CN102534232A (en) * | 2012-01-09 | 2012-07-04 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag under normal pressure by adding carbon-containing substance into sodium hydroxide solution |
| CN102732727B (en) * | 2012-05-23 | 2014-01-22 | 河北钢铁股份有限公司承德分公司 | Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag |
| CN102732727A (en) * | 2012-05-23 | 2012-10-17 | 河北钢铁股份有限公司承德分公司 | Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag |
| CN103276227A (en) * | 2013-05-17 | 2013-09-04 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-titanium magnetite concentrates |
| CN103276227B (en) * | 2013-05-17 | 2014-12-24 | 中国科学院过程工程研究所 | Method for extracting vanadium from vanadium-titanium magnetite concentrates |
| CN105671327A (en) * | 2016-03-16 | 2016-06-15 | 河北钢铁股份有限公司承德分公司 | Method for removing sodium in vanadium-containing tailings under alkaline condition |
| CN107177740A (en) * | 2017-05-16 | 2017-09-19 | 河钢股份有限公司承德分公司 | A kind of method that aluminium is reclaimed from refining slag |
| CN107177740B (en) * | 2017-05-16 | 2020-01-24 | 河钢股份有限公司承德分公司 | Method for recovering aluminum from refining slag |
| CN107236871A (en) * | 2017-06-22 | 2017-10-10 | 河钢股份有限公司承德分公司 | A kind of method for mixing vanadium slag and v-bearing steel slag pressurization vanadium extraction |
| CN107254587A (en) * | 2017-06-22 | 2017-10-17 | 河钢股份有限公司承德分公司 | A kind of utilization sodium acid carbonate decomposes the method that v-bearing steel slag reclaims vanadium |
| CN107287431A (en) * | 2017-06-22 | 2017-10-24 | 河钢股份有限公司承德分公司 | A kind of method for reclaiming vanadium in vanadium containing steel slag element |
| CN107287453A (en) * | 2017-06-22 | 2017-10-24 | 河钢股份有限公司承德分公司 | A kind of method of v-bearing steel slag ion exchange method vanadium extraction |
| CN107236870A (en) * | 2017-06-22 | 2017-10-10 | 中国科学院过程工程研究所 | A kind of method of v-bearing steel slag carbonization vanadium extraction |
| CN110170249A (en) * | 2019-05-09 | 2019-08-27 | 昆明理工大学 | A kind of method of v-bearing steel slag calcining purification hydrogen sulfide flue gas |
| CN110396611A (en) * | 2019-07-25 | 2019-11-01 | 河钢股份有限公司承德分公司 | A method of recycling vanadium iron dedusting ash prepares sodium vanadate solution |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102094123B (en) | 2013-04-17 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102094123B (en) | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium | |
| CN102071321B (en) | Method for extracting vanadium and chromium from vanadium-containing steel slag by high-alkalinity potassium hydroxide | |
| CN103397213B (en) | Method for decomposing and extracting Baotou rare earth ore through mixed alkali roasting process | |
| CN102071310B (en) | Method for comprehensively utilizing gold and arsenic-containing sulfur concentrate | |
| CN103740945B (en) | A kind of method of enriching and recovering cadmium from plumbous smelting system | |
| CN103526024A (en) | Novel clean environment-friendly comprehensive recovery process for high-indium high-iron zinc concentrate | |
| CN106065435A (en) | A kind of method and system processing vanadium slag | |
| CN103924096A (en) | Method for recycling vanadium-chromium resources | |
| CN101818250A (en) | Method for processing cobalt-copper-iron alloy | |
| CN102051477A (en) | Method for chemically separating bastnaesite and urdite from mixed rare earth concentrate | |
| CN102372306A (en) | Method for recycling concentrated slag of wasted acid from titanium white production | |
| CN102127655A (en) | Method for decomposing vanadium slag under normal pressure with sodium hydroxide solution | |
| CN107236870A (en) | A kind of method of v-bearing steel slag carbonization vanadium extraction | |
| CN102586613A (en) | Method for recycling vanadium from vanadium-containing steel slag | |
| CN102199710A (en) | Method for extracting and separating nickel and molybdenum from nickel-molybdenum-containing coal gangue | |
| CN110117720A (en) | A kind of method of sulfate slag phosphorylation roasting-leaching-extraction comprehensive extraction of valent metal | |
| CN103343225B (en) | Comprehensive utilization method of ferriferous fayalite material | |
| CN109811132A (en) | A method of comprehensive reutilization carbon, iron, aluminium, zinc, lead from blast furnace gas mud | |
| CN107236871A (en) | A kind of method for mixing vanadium slag and v-bearing steel slag pressurization vanadium extraction | |
| CN101509073A (en) | Solvent extraction of ferronickel powder and waste liquor processing method | |
| CN103343242B (en) | Method for interactively roasting bismuth sulfide ore and pyrolusite to extract bismuth and co-produce manganese sulfate | |
| CN107287453A (en) | A kind of method of v-bearing steel slag ion exchange method vanadium extraction | |
| CN101550490B (en) | Method of extracting nickel from ni-mo ore metallurgical slag | |
| CN104404243A (en) | Method for low-temperature decomposition of low-grade Weishan rare earth ore concentrate through acid-alkali combination | |
| CN109628746A (en) | The extracting method of tin in a kind of silver separating residues |
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 | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee after: River steel Limited by Share Ltd Chengde branch Address before: 067102 Luanhe Town, Shuangluan District, Chengde, Hebei Patentee before: Chengde Branch Co., Ltd. of Hebei Iron & Steel Group |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180919 Address after: 067411 Chengde City, Hebei Province Patentee after: Chengde Chenggang Zhuyu Vanadium Titanium Co., Ltd. Address before: 067102 A block 520, Luanhe town finance square, Shuangluan District, Chengde, Hebei Patentee before: River steel Limited by Share Ltd Chengde branch |