CN102732727B - Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag - Google Patents
Method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag Download PDFInfo
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Abstract
The present invention discloses a method for extracting vanadium from high vanadium-sodium-aluminum-silicon slag. The method comprises: mixing high vanadium-sodium-aluminum-silicon slag and a sodium hydroxide solution, carrying out a leaching reaction, and diluting the resulting slurry after completing the reaction to obtain a mixed slurry; carrying out thermal insulation filtering to obtain leached residue and a vanadium-containing alkaline sodium salt solution; and carrying out sodium vanadate crystallization on the vanadium-containing alkaline sodium salt solution to obtain sodium vanadate. The method of the present invention has the following advantages that: the reaction temperature is low; the dissolution rate is high; the high vanadium-sodium-aluminum-silicon slag treatment process can be performed under the wet condition; high temperature calcination is not required, and the method can be performed at the low temperature under the normal pressure; the reaction time can be shortened; the operation is easy; the process is simple and has good security; and the efficient vanadium extraction is achieved. With the method, problems of high reaction temperature, low vanadium recovery rate, large amount of wastewater and waste residue discharging, and the like of the traditional process for extracting vanadium from high vanadium-sodium-aluminum-silicon slag are fundamentally solved, and clean use of vanadium is achieved.
Description
Technical field
The present invention relates to a kind for the treatment of process of waste residue, especially a kind of method of extracting vanadium from high vanadium sodium aluminium white residue.
Background technology
" high vanadium sodium aluminium white residue " is the solid waste producing while containing vanadium leachate with the dephosphorization of aluminium salt silica removal in conventional vanadium slag sodium roasting vanadium-extracting technique, and its main component is: Na=6%, Al=8%, Si=12%, V=10%.High vanadium sodium aluminium white residue is as stacked or landfill must cause the waste of resource and the detrimentally affect of environment.Process at present sodium white residue and mainly contain following two kinds of modes: 1, applied chemistry method is extracted sodium, the aluminium in sodium white residue: China Patent Publication No. CN101054629A discloses a kind of method of method for the treatment of sodium-silicon slag by chlorination, this technique adds reductive agent in sodium white residue, join continuously and in boiling chloridizing furnace, carry out chlorination, realize one section of selective chlorination of sodium element in sodium white residue, through steps such as washing, roasting, condensation separation, realize valuable element separation.Chinese patent application publication number CN1597525A discloses the desiliconization slag treatment process in a kind of aluminum oxide production process, this technique is heated to 120～200 ℃ of insulation stripping 45-150min by the sodium white residue after solid-liquid separation and alkali lye, milk of lime after mixed stirring in stripping tank, and solid-liquid separation dissolution fluid is delivered to laterite washing system in alumina producing flow process.Chinese patent application publication number CN101343076A discloses a kind of method with preparing micro-mist hydroted alumina with sodium-silica residue, processes sodium white residue obtain acid sludge with the vitriol oil, then, by the stripping of acid sludge water, obtains alum liquor and silica gel, then produces fine aluminum hydroxide powder.2, take sodium white residue prepares molecular sieve as starting raw material: China Patent Publication No. CN1562748A discloses a kind of sodium white residue and produced the method for 4A zeolite for washing, the method purifies sodium white residue after pre-treatment, through operations such as batching, sintering, stripping, crystallization, makes washing 4A zeolite product.China Patent Publication No. CN101139099A has introduced the another kind of technique of utilizing sodium white residue to produce 4A zeolite, this technique first utilizes acid regulator solution to carry out Leaching reaction to sodium white residue, filter residue joins in alkaline regulator solution and reacts, add and lead brilliant auxiliary agent, synthesize, crystallization, oven dry obtain 4A zeolite product.
The treatment process of above-mentioned sodium white residue is mainly for the sodium white residue of aluminum oxide industry by-product, and the sodium white residue of the more above-mentioned aluminum oxide industry by-product of high vanadium sodium aluminium white residue that vanadium products factory vanadium liquid purification silica removal obtains has following difference: 1, the vanadiumcontent in high vanadium sodium aluminium white residue is higher, containing elemental vanadium, be about 10%; 2, the calcium iron level in high vanadium sodium aluminium white residue is relatively high.Therefore.As processed as stated above high vanadium sodium aluminium white residue, except causing the waste of vanadium, increasing of foreign matter content can cause adverse influence to the quality of the separation of each element in leach liquor and molecular sieve.At present, the high vanadium sodium aluminium white residue of vanadium products factory is mainly to wash with water or acidleach recovery vanadium, but exists the rate of recovery of vanadium low, and acid consumption is large, follow-up process for extracting vanadium has also been caused to the problem of very big difficulty; And residual vanadium is higher in gained tailings, can not recycling.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of method of vanadium of extracting from high vanadium sodium aluminium white residue that vanadium recovery is high.
For solving the problems of the technologies described above, the technical solution used in the present invention is: high vanadium sodium aluminium white residue is mixed with sodium hydroxide solution to turn and soak reaction, by reaction paste dilution, obtain diluted slurry after completion of the reaction; Then diluted slurry is incubated to filtration, obtains leached mud and containing the sodium salt alkaline solution of vanadium, the described sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization, obtains vanadic acid sodium.
The present invention further adopts following processing step: (1) batching: NaOH is mixed with the ratio of high vanadium sodium aluminium white residue by weight 0.25～2:1;
(2) turn and soak: in the NaOH mixing and high vanadium sodium aluminium white residue, by solid-liquid weight ratio 1:1～4, add water, then normal pressure turns and soaks 0.5～2h at 50～200 ℃, obtains reaction paste;
(3) dilute filtration: water or NaOH solution are diluted to diluted slurry by reaction paste, solid-liquid separation then, obtains leached mud and containing the sodium salt alkaline solution of vanadium;
(4) crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization, obtains vanadic acid sodium.
In step of the present invention (3), the massfraction of NaOH solution is 1～15%.
Solid-liquid separation in step of the present invention (3) is, at 70～90 ℃, diluted slurry is incubated to filtration.
After washing with water, the leached mud that step of the present invention (3) obtains obtains the tailings in vanadium extraction of high vanadium sodium aluminium white residue; After mixing with the tailings in vanadium extraction of conventional vanadium slag, the tailings in vanadium extraction of described high vanadium sodium aluminium white residue carries out calcination process.Described vanadium slag is in steelmaking process, to obtain conventional vanadium slag, be vanadium-bearing hot metal is obtained through oxidation blowing in vanadium extracting process or containing vanadium iron concentrate the general designation through the resulting bits containing vanadium oxide of wet method vanadium extraction.
Described calcination process is: (1) batch mixing: the tailings in vanadium extraction of high vanadium sodium aluminium white residue is mixed by weight 1:5～1:100 with the tailings in vanadium extraction of vanadium slag, obtain mixing slag;
(2) roasting: mix slag at 700～900 ℃ of roasting 1～10h, cooling, obtain fired slags;
(3) solid-liquid separation: fired slags water logging is filtered, obtains containing vanadium clear liquid and finishing slag; Described contains vanadium clear liquid as mother liquor, can be used for Leaching of Vanadium from Vanadium slag technique; Described finishing slag can be used as black porcelain and prepares pigment or solar panels heat-absorbing paint.
Sodium salt alkaline solution containing vanadium in step of the present invention (4) carries out vanadic acid sodium crystallization at 0～40 ℃.
After the crystallization that step of the present invention (4) vanadic acid sodium crystallization obtains, liquid is for the water described in alternative steps (2).
The beneficial effect that adopts technique scheme to produce is: temperature of reaction of the present invention is low, vanadium solubility rate is high, high vanadium sodium aluminium white residue technique can be carried out under wet method condition, do not need high-temperature roasting, under low-temperature atmosphere-pressure, just can carry out, Reaction time shorten, easy handling and security are good, realize the high efficiency extraction of vanadium.In addition, in leaching process, the liquid phase of generation is returned and is leached operation recycle, effectively reduces generation and the output of waste water; The tailings producing is about 12% containing Na, for the baking mixed vanadium extraction of Leaching of Vanadium from Vanadium slag tailings, compares with traditional technology, and the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings has improved more than 10%; Last tailings can be used as that black porcelain is prepared pigment and solar panels coating is sold outward, produces environmental friendliness without waste.It is low that present method has overcome tradition (high vanadium sodium aluminium white residue) process for extracting vanadium vanadium recovery, and the problems such as waste water and dregs discharge, have realized the clean recycling of vanadium.
Accompanying drawing explanation
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Embodiment 1: shown in Fig. 1, this method of extracting vanadium from high vanadium sodium aluminium white residue adopts following processing step.
1, batching: NaOH, with high vanadium sodium aluminium white residue by weight mixing for the ratio of 1:1, stirs.
2, leach: the NaOH of mixing and high vanadium sodium aluminium white residue are put in reactor, by liquid-solid ratio 1:2, add water, at 110 ℃, normal pressure turns liquid-phase oxidation, the leaching of soaking in 2.0h(Fig. 1), obtain reaction paste.
3, dilute filtration: with 500mL water, reaction paste is diluted to diluted slurry, at 80 ℃, diluted slurry is incubated to filtration, obtain leached mud and containing the sodium salt alkaline solution of vanadium (in Fig. 1 containing vanadium solution); The basicity that contains the sodium salt alkaline solution of vanadium is 48g/L.
4, washing: the water washing of 80 ℃ for leached mud, obtains the tailings in vanadium extraction (vanadium mud tailings in vanadium extraction in Fig. 1) of high vanadium sodium aluminium white residue; In this tailings, containing vanadium, be that 0.35wt%(is in vanadium), the leaching yield of gained vanadium is 97.06%.
5, crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization at 40 ℃, and after crystallization, liquid returns to step 2 next time, replaces water wherein; Vanadic acid sodium crystallization can enter in the purification vanadium liquid of Leaching of Vanadium from Vanadium slag technique carries out ammonium precipitation.
6, tailings is processed:
(1) batch mixing: the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag (the secondary slag in Fig. 1), by weight 1:10, is dropped in stirrer and stirs 10min, obtain mixing slag.
(2) roasting: mix slag roasting 4h at 800 ℃, after taking-up, naturally cool to room temperature, obtain fired slags.
(3) leach: by solid-to-liquid ratio 1:5, fired slags is mixed to 90 ℃ of agitation leach 1h with gauge water.
(4) solid-liquid separation: leach mixed solution and filter with belt filter, obtain containing vanadium clear liquid and finishing slag; Containing vanadium clear liquid, as mother liquor, be incorporated to the vanadium extraction flow process of vanadium slag; Finishing slag can be used as black porcelain and prepares pigment or the sale of solar panels heat-absorbing paint.
After the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag is baking mixed, the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings is 58.2%.
Embodiment 2: this method of extracting vanadium from high vanadium sodium aluminium white residue adopts following processing step.
1, batching: NaOH(is containing the NaOH in liquid after the crystallization of returning) for the ratio of 2:1, mix by weight with high vanadium sodium aluminium white residue, stir.
2, leach: NaOH and high vanadium sodium aluminium white residue are put in reactor, by liquid-solid ratio 1:3, add liquid after crystallization, at 130 ℃, normal pressure turns and soaks 1.5h, obtains reaction paste.
3, dilute filtration: the NaOH solution that is 5% with 500mL massfraction dilutes reaction paste, at 85 ℃, diluted slurry is incubated to filtration, obtains leached mud and containing the sodium salt alkaline solution of vanadium; The basicity that contains the sodium salt alkaline solution of vanadium is 105g/L.
4, washing: the water washing of 90 ℃ for leached mud, obtains the tailings in vanadium extraction of high vanadium sodium aluminium white residue; In this tailings, containing vanadium, be that 0.41wt%(is in vanadium), the leaching yield of gained vanadium is 96.58%.
5, crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization at 30 ℃, and after crystallization, liquid returns to step 2 next time, replaces water wherein; Vanadic acid sodium crystallization can be carried out ammonium precipitation.
6, tailings is processed:
(1) batch mixing: the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag, by weight 1:20, is dropped in stirrer and stirs 10min, obtain mixing slag.
(2) roasting: mix slag roasting 10h at 750 ℃, after taking-up, naturally cool to room temperature, obtain fired slags.
(3) leach: by solid-to-liquid ratio 1:1, fired slags is mixed to 100 ℃ of agitation leach 2h with gauge water.
(4) solid-liquid separation: leach mixed solution and filter with belt filter, obtain containing vanadium clear liquid and finishing slag; Containing vanadium clear liquid, as mother liquor, be incorporated to the vanadium extraction flow process of vanadium slag; Finishing slag can be used as black porcelain and prepares pigment or the sale of solar panels heat-absorbing paint.
After the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag is baking mixed, the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings is 56.6%.
Embodiment 3: this method of extracting vanadium from high vanadium sodium aluminium white residue adopts following processing step.
1, batching: NaOH(is containing the NaOH in liquid after the crystallization of returning) for the ratio of 0.25:1, mix by weight with high vanadium sodium aluminium white residue, stir.
2, leach: NaOH and high vanadium sodium aluminium white residue are put in reactor, by liquid-solid ratio 1:1, add liquid after crystallization, at 200 ℃, normal pressure turns and soaks 0.5h, obtains reaction paste.
3, dilute filtration: the NaOH solution that is 1% with 1000mL massfraction dilutes reaction paste, at 90 ℃, diluted slurry is incubated to filtration, obtains leached mud and containing the sodium salt alkaline solution of vanadium; The basicity that contains the sodium salt alkaline solution of vanadium is 22g/L.
4, washing: the water washing of 70 ℃ for leached mud, obtains the tailings in vanadium extraction of high vanadium sodium aluminium white residue; In this tailings, containing vanadium, be that 0.51wt%(is in vanadium), the leaching yield of gained vanadium is 95.62%.
5, crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization at 25 ℃; Vanadic acid sodium crystallization can be carried out ammonium precipitation.
6, tailings is processed:
(1) batch mixing: the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag, by weight 3:20, is dropped in stirrer and stirs 10min, obtain mixing slag.
(2) roasting: mix slag roasting 2h at 850 ℃, after taking-up, naturally cool to room temperature, obtain fired slags.
(3) leach: by solid-to-liquid ratio 1:3, fired slags is mixed to 95 ℃ of agitation leach 5h with gauge water.
(4) solid-liquid separation: leach mixed solution and filter with belt filter, obtain containing vanadium clear liquid and finishing slag.
After the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag is baking mixed, the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings is 59.1%.
Embodiment 4: this method of extracting vanadium from high vanadium sodium aluminium white residue adopts following processing step.
1, batching: NaOH(is containing the NaOH in liquid after the crystallization of returning) for the ratio of 1.5:1, mix by weight with high vanadium sodium aluminium white residue, stir.
2, leach: NaOH and high vanadium sodium aluminium white residue are put in reactor, by liquid-solid ratio 1:4, add liquid after crystallization, at 50 ℃, normal pressure turns and soaks 1.0h, obtains reaction paste.
3, dilute filtration: the NaOH solution that is 15% with 100mL massfraction dilutes reaction paste, at 70 ℃, diluted slurry is incubated to filtration, obtains leached mud and containing the sodium salt alkaline solution of vanadium; The basicity that contains the sodium salt alkaline solution of vanadium is 67g/L.
4, washing: the water washing of 90 ℃ for leached mud, obtains the tailings in vanadium extraction of high vanadium sodium aluminium white residue; In this tailings, containing vanadium, be that 0.47wt%(is in vanadium), the leaching yield of gained vanadium is 96.81%.
5, crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization at 0 ℃, and after crystallization, liquid returns to step 2 next time, replaces water wherein; Vanadic acid sodium crystallization can be carried out ammonium precipitation.
6, tailings is processed:
(1) batch mixing: the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag, by weight 1:5, is dropped in stirrer and stirs 5min, obtain mixing slag.
(2) roasting: mix slag roasting 1h at 900 ℃, after taking-up, naturally cool to room temperature, obtain fired slags.
(3) leach: by solid-to-liquid ratio 1:8, fired slags is mixed to 50 ℃ of agitation leach 4h with gauge water.
(4) solid-liquid separation: leach mixed solution and filter with belt filter, obtain containing vanadium clear liquid and finishing slag; Containing vanadium clear liquid, as mother liquor, be incorporated to the vanadium extraction flow process of vanadium slag; Finishing slag can be used as black porcelain and prepares pigment or the sale of solar panels heat-absorbing paint.
After the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag is baking mixed, the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings is 57.8%.
Embodiment 5: this method of extracting vanadium from high vanadium sodium aluminium white residue adopts following processing step.
1, batching: NaOH, with high vanadium sodium aluminium white residue by weight mixing for the ratio of 0.75:1, stirs.
2, leach: NaOH and high vanadium sodium aluminium white residue are put in reactor, and by liquid-solid ratio, 1:2.5 adds water, at 150 ℃, normal pressure turns and soaks 1.5h, obtains reaction paste.
3, dilute filtration: with 800mL water, reaction paste is diluted, at 75 ℃, diluted slurry is incubated to filtration, obtain leached mud and containing the sodium salt alkaline solution of vanadium; The basicity that contains the sodium salt alkaline solution of vanadium is 71g/L.
4, washing: the water washing of 75 ℃ for leached mud, obtains the tailings in vanadium extraction of high vanadium sodium aluminium white residue; In this tailings, containing vanadium, be that 0.43wt%(is in vanadium), the leaching yield of gained vanadium is 95.98%.
5, crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization at 10 ℃, and after crystallization, liquid returns to step 2 next time, replaces water wherein; Vanadic acid sodium crystallization can be carried out ammonium precipitation.
6, tailings is processed:
(1) batch mixing: the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag, by weight 1:10, is dropped in stirrer and stirs 20min, obtain mixing slag.
(2) roasting: mix slag roasting 8h at 700 ℃, after taking-up, naturally cool to room temperature, obtain fired slags.
(3) leach: by solid-to-liquid ratio 1:10, fired slags is mixed to 80 ℃ of agitation leach 0.5h with gauge water.
(4) solid-liquid separation: leach mixed solution and filter with belt filter, obtain containing vanadium clear liquid and finishing slag; Containing vanadium clear liquid, as mother liquor, be incorporated to the vanadium extraction flow process of vanadium slag; Finishing slag can be used as black porcelain and prepares pigment or the sale of solar panels heat-absorbing paint.
After the tailings in vanadium extraction of the tailings in vanadium extraction of high vanadium sodium aluminium white residue and vanadium slag is baking mixed, the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings is 58.4%.
Shown in Fig. 1, this method of extracting vanadium from high vanadium sodium aluminium white residue organically combines the sinter process of conventional Leaching of Vanadium from Vanadium slag technique, Leaching of Vanadium from Vanadium slag tailings (secondary slag) and present method, can improve the vanadium recovery of Leaching of Vanadium from Vanadium slag tailings, product in above-mentioned technique all can be fully utilized effectively, thereby effectively saving resource, reduce the discharge of waste, there is the feature of energy-conserving and environment-protective.
Claims (6)
1. from high vanadium sodium aluminium white residue, extract a method for vanadium, it is characterized in that: high vanadium sodium aluminium white residue is mixed with sodium hydroxide solution to turn and soak reaction, by reaction paste dilution, obtain diluted slurry after completion of the reaction; Then diluted slurry is incubated to filtration, obtains leached mud and containing the sodium salt alkaline solution of vanadium, the described sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization, obtains vanadic acid sodium concrete technology step as follows:
(1) batching: NaOH is mixed with the ratio of high vanadium sodium aluminium white residue by weight 0.25～2:1;
(2) turn and soak: in the NaOH mixing and high vanadium sodium aluminium white residue, by solid-liquid weight ratio 1:1～4, add water, then normal pressure turns and soaks 0.5～2h at 50～200 ℃, obtains reaction paste;
(3) dilute filtration: water or NaOH solution are diluted to diluted slurry by reaction paste, solid-liquid separation then, obtains leached mud and containing the sodium salt alkaline solution of vanadium; The massfraction of NaOH solution is 1～15%;
(4) crystallization: the sodium salt alkaline solution containing vanadium carries out vanadic acid sodium crystallization, obtains vanadic acid sodium.
2. the method for extracting vanadium from high vanadium sodium aluminium white residue according to claim 1, is characterized in that: the solid-liquid separation in described step (3) is, at 70～90 ℃, diluted slurry is incubated to filtration.
3. the method for extracting vanadium from high vanadium sodium aluminium white residue according to claim 1, is characterized in that: the tailings in vanadium extraction that obtains high vanadium sodium aluminium white residue after the leached mud that described step (3) obtains washes with water; After mixing with the tailings in vanadium extraction of conventional vanadium slag, the tailings in vanadium extraction of described high vanadium sodium aluminium white residue carries out calcination process.
4. the method for extracting vanadium from high vanadium sodium aluminium white residue according to claim 3, is characterized in that, described calcination process is:
(1) batch mixing: the tailings in vanadium extraction of high vanadium sodium aluminium white residue is mixed by weight 1:5～1:100 with the tailings in vanadium extraction of vanadium slag, obtain mixing slag;
(2) roasting: mix slag at 700～900 ℃ of roasting 1～10h, cooling, obtain fired slags;
(3) solid-liquid separation: fired slags water logging is filtered, obtains containing vanadium clear liquid and finishing slag; Described contains vanadium clear liquid as mother liquor, can be used for Leaching of Vanadium from Vanadium slag technique; Described finishing slag can be used as black porcelain and prepares pigment or solar panels heat-absorbing paint.
5. the method for extracting vanadium from high vanadium sodium aluminium white residue according to claim 1, is characterized in that: the sodium salt alkaline solution containing vanadium in described step (4) carries out vanadic acid sodium crystallization at 0～40 ℃.
6. according to any one described in claim 1-5, from high vanadium sodium aluminium white residue, extract the method for vanadium, it is characterized in that: after the crystallization that described step (4) vanadic acid sodium crystallization obtains, liquid is for the water described in alternative steps (2).
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| CN104291354B (en) * | 2013-07-20 | 2017-02-08 | 东北大学 | Method for preparation of zeolite 4A and vanadium-titanium catalyst from vanadium slag |
| CN104649320B (en) * | 2013-11-20 | 2016-09-28 | 中国科学院过程工程研究所 | From crude titanic chloride aluminium powder except the method preparing alkali metal vanadate in vanadium slag |
| CN108821300B (en) * | 2018-08-06 | 2021-02-09 | 东北大学 | Preparation of CaSiO from waste silicon slag3Method (2) |
| CN109628731B (en) | 2019-01-31 | 2020-09-04 | 河钢股份有限公司承德分公司 | Method for extracting and preparing vanadium and alloy powder by short-process treatment of vanadium-containing raw material |
| CN114291879B (en) * | 2021-11-23 | 2023-09-05 | 攀钢集团研究院有限公司 | A kind of preparation method of aluminum silicate |
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| CN102094123A (en) * | 2011-01-14 | 2011-06-15 | 河北钢铁股份有限公司承德分公司 | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
| CN102127654A (en) * | 2010-01-13 | 2011-07-20 | 中国科学院过程工程研究所 | Method for decomposing chromium-containing vanadium slag by using sodium hydroxide molten salt |
| CN102127656A (en) * | 2010-01-13 | 2011-07-20 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag by liquid phase oxidation |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102127654A (en) * | 2010-01-13 | 2011-07-20 | 中国科学院过程工程研究所 | Method for decomposing chromium-containing vanadium slag by using sodium hydroxide molten salt |
| CN102127656A (en) * | 2010-01-13 | 2011-07-20 | 中国科学院过程工程研究所 | Method for decomposing vanadium slag by liquid phase oxidation |
| CN102094123A (en) * | 2011-01-14 | 2011-06-15 | 河北钢铁股份有限公司承德分公司 | Method for extracting vanadium from vanadium-containing steel slag by using highly-alkaline sodium hydroxide medium |
| 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 |
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