CN111304453A - Method for utilizing vanadium-containing waste refractory bricks - Google Patents
Method for utilizing vanadium-containing waste refractory bricks Download PDFInfo
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- CN111304453A CN111304453A CN202010311252.1A CN202010311252A CN111304453A CN 111304453 A CN111304453 A CN 111304453A CN 202010311252 A CN202010311252 A CN 202010311252A CN 111304453 A CN111304453 A CN 111304453A
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working 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
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B1/00—Preliminary treatment of ores or scrap
- C22B1/02—Roasting processes
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B34/00—Obtaining refractory metals
- C22B34/20—Obtaining niobium, tantalum or vanadium
- C22B34/22—Obtaining vanadium
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working 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
- C22B7/04—Working-up slag
-
- 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
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- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Processing Of Solid Wastes (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention relates to a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps: (1) sequentially crushing and grinding the waste refractory bricks to obtain powder; (2) adding the powder obtained in the step (1) into the coarse vanadium slag to obtain a mixture; wherein, the vanadium extraction is carried out on the mixture after roasting. By the utilization method provided by the invention, the realization of the vanadium extraction technology of the vanadium-containing waste refractory bricks not only meets the increasingly severe environment-friendly situation requirements, but also fully recycles the vanadium resources.
Description
Technical Field
The invention relates to the field of waste recovery, in particular to a utilization method of vanadium-containing waste refractory bricks.
Background
At present, the vanadium-containing waste refractory bricks are waste refractory bricks which are dismantled when a melting furnace in our factory is repaired, the melting furnace is repaired twice every year, and the vanadium-containing refractory bricks dismantled each time are about seventy-ten tons and about 15% vanadium-containing refractory bricks. Because the refractory bricks have high hardness and contain more vanadium, no better recovery method exists at present, and the refractory bricks can only be stacked in a plant area, thereby not only influencing the environmental management of the plant area, but also influencing the improvement of the vanadium system yield.
CN106278167A discloses a method for preparing a waste refractory brick permeable brick, which comprises the following steps: (1) crushing, namely crushing the waste refractory bricks to 0-10mm by using a crusher; (2) screening, namely screening out particles with more than 30 meshes in the crushed particles in the step (1) for later use; (2) mixing materials, namely adding the screened raw materials into a dense material formula with the following mass percentage: 10-20% of aluminum phosphate solution, 15-25% of aluminum sulfate solution, 4-10% of urea, 15-25% of clay, 8-16% of sodium silicate, 4-6% of adhesive and 4-6% of sodium sulfate; (4) stirring, and fully stirring by using a stirrer; (5) molding, namely adding the mixture slurry into a mold, and pressing and molding by using a press; (6) sintering at high temperature, and taking out of the kiln for selective loading. The invention has the advantages of short firing time, simple process method, lower production cost, good water and air permeability of the product, high strength, rough surface, strong wear resistance, snow and skid resistance, high waste utilization rate, environmental protection and natural resource saving.
CN106399694A discloses a method for synchronously extracting vanadium and aluminum in waste vanadium oxide smelting furnace refractory bricks. The method comprises the following steps: adding the waste refractory bricks into an inorganic acid solution, heating, stirring, leaching, and filtering to obtain a leaching solution; adding ammonium salt into the prepared leaching solution, heating to dissolve, cooling to crystallize, and performing solid-liquid separation to obtain aluminum-ammonium double salt crystals and a crystallized solution; adding an oxidant into the crystallized liquid, adding an alkaline solution, stirring, and filtering to obtain an ammonium polyvanadate precipitate; and roasting the obtained ammonium polyvanadate precipitate to obtain vanadium pentoxide. The vanadium-aluminum co-extraction method has the advantages that the recovery rate of vanadium element immersed in the refractory brick is high, the purity of the obtained aluminum ammonium double salt and vanadium pentoxide product is high, the waste of valuable metals such as vanadium and aluminum is reduced, and the production cost is saved. However, the wet recovery method can form a large amount of waste water, and the environmental protection risk is high.
Disclosure of Invention
In view of the problems in the prior art, the invention aims to provide a method for utilizing vanadium-containing waste refractory bricks, and the method provided by the invention realizes the technology of extracting vanadium from the vanadium-containing waste refractory bricks, thereby meeting the increasingly severe environment-friendly situation requirements and fully recycling vanadium resources.
In order to achieve the purpose, the invention adopts the following technical scheme:
the invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder;
(2) adding the powder obtained in the step (1) into the coarse vanadium slag to obtain a mixture;
wherein, the vanadium extraction is carried out on the mixture after roasting.
By the utilization method provided by the invention, the vanadium-containing waste refractory bricks are reasonably utilized, so that the realization of the vanadium re-extraction technology of the vanadium-containing waste refractory bricks is realized, the increasingly severe environment-friendly situation requirements are met, and the vanadium resource is fully recycled.
As a preferred embodiment of the present invention, the particle size of the crushed product in the crushing in the step (1) is less than 5cm, and may be, for example, 5cm, 4.9cm, 4.8cm, 4.7cm, 4.6cm, 4.5cm, 4.4cm, 4.3cm, 4.2cm, 4.1cm, 4cm, 3.9cm, 3.8cm, 3.7cm, 3.6cm, 3.5cm, 3.4cm, 3.3cm, 3.2cm, 3.1cm or 3cm, etc., but not limited to the above-mentioned values, and other values not listed in this range are also applicable.
As a preferable technical scheme of the invention, the ore grinding mode in the step (1) is dry ball milling.
As a preferred embodiment of the present invention, the content of particles of-120 mesh in the powder of step (1) is > 80%, and may be, for example, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, or 90%, but is not limited to the values listed, and other values not listed in this range are also applicable.
As a preferable technical scheme of the invention, the crude vanadium slag in the step (2) comprises vanadium slag obtained by extracting vanadium in a converter.
In a preferred embodiment of the present invention, the amount of the powder material added to the mix in the step (2) is 0.5 to 1% by mass of the mix, and may be, for example, 0.5%, 0.55%, 0.6%, 0.65%, 0.7%, 0.75%, 0.8%, 0.85%, 0.9%, 0.95%, or 1% by mass, but is not limited to the above-mentioned values, and other values not shown in the above-mentioned range are also applicable.
In a preferred embodiment of the present invention, the temperature of the calcination is 750-800 ℃, and may be, for example, 750 ℃, 755 ℃, 760 ℃, 765 ℃, 770 ℃, 775 ℃, 780 ℃, 785 ℃, 790 ℃, 795 ℃ or 800 ℃, but not limited to the above-mentioned values, and other values not listed in the above-mentioned range are also applicable.
In a preferred embodiment of the present invention, the baking time is 3 to 5 hours, for example, 3 hours, 3.1 hours, 3.2 hours, 3.3 hours, 3.4 hours, 3.5 hours, 3.6 hours, 3.7 hours, 3.8 hours, 3.9 hours, 4 hours, 4.1 hours, 4.2 hours, 4.3 hours, 4.4 hours, 4.5 hours, 4.6 hours, 4.7 hours, 4.8 hours, 4.9 hours or 5 hours, etc., but not limited to the above-mentioned values, and other values not listed in this range are also applicable.
In a preferred embodiment of the present invention, the vanadium content in the waste firebricks is 10 to 20%, for example, 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, or 20%, but not limited to the above-mentioned values, and other values not listed in the above range are also applicable.
As a preferred technical scheme of the invention, the method comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.5-1% of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 750-800 ℃; the roasting time is 3-5 h; the content of vanadium in the waste refractory bricks is 10-20%.
Compared with the prior art, the invention at least has the following beneficial effects:
by the utilization method provided by the invention, the realization of the vanadium extraction technology of the vanadium-containing waste refractory bricks not only meets the increasingly severe environment-friendly situation requirements, but also fully recycles the vanadium resources. The recovery rate of vanadium reaches 80.56 percent.
Detailed Description
To better illustrate the invention and to facilitate the understanding of the technical solutions thereof, typical but non-limiting examples of the invention are as follows:
example 1
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.5 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 750 ℃; the roasting time is 3 hours; the content of vanadium in the waste refractory bricks is 10 percent.
The recovery rate of vanadium in the method is 79.8%.
Example 2
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.6 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 760 ℃; the roasting time is 3.5 hours; the content of vanadium in the waste refractory bricks is 11%.
The recovery of vanadium in this process was 80.05%.
Example 3
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.7 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 770 ℃; the roasting time is 3.8 hours; the content of vanadium in the waste refractory bricks is 13 percent.
The recovery of vanadium in this process was 80.08%.
Example 4
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.75 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 775 ℃; the roasting time is 4.1 h; the content of vanadium in the waste refractory bricks is 15%.
The recovery rate of vanadium in the method is 80.13%.
Example 5
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.8 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 780 ℃; the roasting time is 4.4 hours; the content of vanadium in the waste refractory bricks is 17 percent.
The recovery rate of vanadium in the method is 80.25%.
Example 6
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.5-1% of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 790 ℃; the roasting time is 4.7 hours; the content of vanadium in the waste refractory bricks is 19 percent.
The recovery of vanadium in this process was 80.31%.
Example 7
The invention provides a method for utilizing vanadium-containing waste refractory bricks, which comprises the following steps:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 1 percent of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 800 ℃; the roasting time is 5 hours; the content of vanadium in the waste refractory bricks is 20 percent.
The recovery of vanadium in this process was 80.56%.
Comparative example 1
The only difference from example 1 is that the-120 mesh particle content in the powder was 50%, and the recovery of vanadium in this process was 70%.
Comparative example 2
The only difference from example 1 is that the amount of powder added to the mix was 0.1% of the mass of the mix, and the recovery of vanadium in this process was 69%.
Comparative example 3
The difference from example 1 is only that the amount of powder added to the mix is 5% of the mass of the mix, and the recovery of vanadium in this process is 70%.
The results of the above examples and comparative examples show that the realization of the vanadium re-extraction technology of the vanadium-containing waste refractory brick by the utilization method provided by the invention not only meets the increasingly severe environmental protection requirements, but also fully recycles the vanadium resource. The recovery rate of vanadium reaches 80.56 percent.
The applicant declares that the present invention illustrates the detailed structural features of the present invention through the above embodiments, but the present invention is not limited to the above detailed structural features, that is, it does not mean that the present invention must be implemented depending on the above detailed structural features. It should be understood by those skilled in the art that any modifications of the present invention, equivalent substitutions of selected components of the present invention, additions of auxiliary components, selection of specific modes, etc., are within the scope and disclosure of the present invention.
The preferred embodiments of the present invention have been described in detail, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and the invention is not described in any way for the possible combinations in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (10)
1. The method for utilizing vanadium-containing waste refractory bricks is characterized by comprising the following steps of:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder;
(2) adding the powder obtained in the step (1) into the coarse vanadium slag to obtain a mixture;
wherein, the vanadium extraction is carried out on the mixture after roasting.
2. The method of claim 1, wherein the size of the crushed product in the crushing of step (1) is < 5 cm.
3. The method of claim 1 or 2, wherein the grinding of the ore in step (1) is performed by dry ball milling.
4. The process according to any of claims 1 to 3, wherein the content of particles of-120 mesh in the powder of step (1) is > 80%.
5. The method according to any one of claims 1 to 4, wherein the crude vanadium slag of step (2) comprises vanadium slag obtained by extracting vanadium from a converter.
6. The method of any one of claims 1 to 5, wherein the amount of powder added to the mix in step (2) is 0.5 to 1% by mass of the mix.
7. The method according to any one of claims 1 to 6, wherein the temperature of the calcination is 750-800 ℃.
8. The method of any one of claims 1-7, wherein the calcination is carried out for a time period of 3 to 5 hours.
9. The method as claimed in any one of claims 1 to 8, wherein the vanadium content of the waste refractory bricks is 10 to 20%.
10. A method according to any one of claims 1-9, characterized in that the method comprises the steps of:
(1) sequentially crushing and grinding the waste refractory bricks to obtain powder; wherein the particle size of the crushed product in the crushing is less than 5 cm; the ore grinding mode is dry ball milling; the content of particles with-120 meshes in the powder is more than 80 percent;
(2) adding the powder obtained in the step (1) into vanadium slag to obtain a mixture; wherein the crude vanadium slag comprises vanadium slag obtained by extracting vanadium in a converter; the adding amount of the powder in the mixture is 0.5-1% of the mass of the mixture; roasting the mixture and extracting vanadium; the roasting temperature is 750-800 ℃; the roasting time is 3-5 h; the content of vanadium in the waste refractory bricks is 10-20%.
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| CN202010311252.1A CN111304453A (en) | 2020-04-20 | 2020-04-20 | Method for utilizing vanadium-containing waste refractory bricks |
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| CN202010311252.1A CN111304453A (en) | 2020-04-20 | 2020-04-20 | Method for utilizing vanadium-containing waste refractory bricks |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105211A (en) * | 2021-04-15 | 2021-07-13 | 攀枝花学院 | Vanadium slag brick and preparation method thereof |
| CN116143531A (en) * | 2023-03-01 | 2023-05-23 | 承德天大钒业有限责任公司 | Method for preparing unshaped refractory material by utilizing vanadium-aluminum slag and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1824607A (en) * | 2005-02-22 | 2006-08-30 | 攀枝花市桃园钒制品有限公司 | Vanadium extraction technology of high aluminium slag |
| CN107058764A (en) * | 2017-04-17 | 2017-08-18 | 攀钢集团研究院有限公司 | A kind of method that vanadium is reclaimed from corundum slag |
| CN109234521A (en) * | 2018-11-28 | 2019-01-18 | 承德燕北冶金材料有限公司 | A method of the vanadium extraction again of the ferric vandate of byproduct containing vanadium |
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2020
- 2020-04-20 CN CN202010311252.1A patent/CN111304453A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1824607A (en) * | 2005-02-22 | 2006-08-30 | 攀枝花市桃园钒制品有限公司 | Vanadium extraction technology of high aluminium slag |
| CN107058764A (en) * | 2017-04-17 | 2017-08-18 | 攀钢集团研究院有限公司 | A kind of method that vanadium is reclaimed from corundum slag |
| CN109234521A (en) * | 2018-11-28 | 2019-01-18 | 承德燕北冶金材料有限公司 | A method of the vanadium extraction again of the ferric vandate of byproduct containing vanadium |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113105211A (en) * | 2021-04-15 | 2021-07-13 | 攀枝花学院 | Vanadium slag brick and preparation method thereof |
| CN116143531A (en) * | 2023-03-01 | 2023-05-23 | 承德天大钒业有限责任公司 | Method for preparing unshaped refractory material by utilizing vanadium-aluminum slag and application |
| CN116143531B (en) * | 2023-03-01 | 2024-06-07 | 承德天大钒业有限责任公司 | Method for preparing unshaped refractory material by utilizing vanadium-aluminum slag and application |
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Application publication date: 20200619 |