CN101921941B - Method for producing vanadium-nitrogen alloy - Google Patents
Method for producing vanadium-nitrogen alloy Download PDFInfo
- Publication number
- CN101921941B CN101921941B CN2010102845837A CN201010284583A CN101921941B CN 101921941 B CN101921941 B CN 101921941B CN 2010102845837 A CN2010102845837 A CN 2010102845837A CN 201010284583 A CN201010284583 A CN 201010284583A CN 101921941 B CN101921941 B CN 101921941B
- Authority
- CN
- China
- Prior art keywords
- vanadium
- powder
- alloy
- temperature
- stage
- 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
Links
Abstract
The invention discloses a method for producing vanadium-nitrogen alloy, which comprises the following steps of: firstly, mechanically activating a vanadium-containing compound; secondly, adding a reaction promoter, a carbon-containing compound and a binder to obtain a mixture, standing the mixture for 24h and then mechanically molding the mixture to obtain a material blank; thirdly, aging the material blank; fourthly, sintering the material blank; and finally, obtaining a finished product of the vanadium-nitrogen alloy with a vanadium content of more than or equal to 77.0 percent after the material blank undergoes a drying process, a carbonization process, a nitriding process and a cooling process, wherein the temperatures of the drying process, the carbonization process and the nitriding process are 180 to 400 DEG C, 1,500 to 1,600 DEG C, and 1,250 to 1,350 DEG C respectively, and the weight part ratio of the vanadium-containing compound to the reaction promoter to the carbon-containing compound to the binder is 70-85: 3-5: 10-25: 0.1 to 10. The method has the advantages of high quality, high appearance density, high vanadium yield, and stable product quality, smooth production process and low production cost.
Description
Technical field
The present invention relates to the preparation method of the alloy addition that a kind of Iron and Steel Production uses, relate in particular to a kind of working method of VN alloy, specifically be applicable to the production of the vanadium-containing alloy that is added when containing the vanadium steel iron material produces.
Background technology
At present, produce when containing the vanadium steel iron material, use the method for adding vanadium-containing alloy to realize usually.For the addition that reduces vanadium, the toughness and tenacity that improves iron and steel, vanadium-containing alloy preferably adds with the form of VN alloy, and therefore, Iron and Steel Production increases the increasing demand of high-quality VN alloy.At present; Though the working method of VN alloy is more; For example vacuum method, normal pressure nitriding etc., and produce and all reached higher level, but it all exists problems such as output is lower, quality shakiness; For the quality product that improves VN alloy, reduce production costs, be badly in need of the working method of a kind of high-quality, economic VN alloy.
The Chinese patent publication number is CN101289713A, open day is the working method that the patent of invention on October 22nd, 2008 discloses a kind of VN alloy, be with Vanadium Pentoxide in FLAKES levigate after; Adding iron powder, carbon dust, sticker are processed globe after mixing, and globe is sent in the horizontal pushed bat kiln, feed nitrogen in the pushed bat kiln; And make and remain pressure-fired in the kiln, globe carries out carbonization and nitrogenizing reaction in kiln, and the temperature of carburizing reagent is 1500 ℃ of 1350 –; Reaction times 2 – 3.5 hours; The temperature of nitrogenizing reaction is 1150 ℃ of 1000 –, and reaction times 0.5 – 1.5 hours is cooled to gradually below 100 ℃ and comes out of the stove.Though this invention is not owing to use vacuum apparatus, can reduction equipment drops into, and the flow process that simplifies the operation enhance productivity, but it is second-rate, and especially apparent mass shows that mainly the yield of vanadium is lower, and production cost is higher, unstable product quality.
Summary of the invention
The objective of the invention is to overcome exist in the prior art second-rate, production cost is higher, the defective of unstable product quality and problem, provide a mass better, the working method of the VN alloy of lower, the constant product quality of production cost.
For realizing above purpose, technical solution of the present invention is:
A kind of working method of VN alloy may further comprise the steps successively:
The first step: adopt abrasive method to carry out mechanical activation vanadium-containing compound earlier and handle, milling time added reaction promotor, carbon compound and sticker then and carries out batch mixing more than or equal to 1 hour, obtained qualified compound;
Second step: earlier above-mentioned compound was placed 24 hours, the compound after will placing again is mechanical-moulded to carry out ageing treatment to the coarse fodder piece then for the coarse fodder piece, is about to the coarse fodder piece and dries naturally at normal temperatures, and the treatment time was more than or equal to 48 hours;
The 3rd step: earlier the coarse fodder piece after the ageing treatment is sent into the calcining kiln from the opening for feed of VN alloy calcining kiln; Simultaneously; High pure nitrogen is sent in the calcining kiln by different inlet mouths; The coarse fodder piece through coming out of the stove behind drying stage, carbonation stage, nitrogenize stage and the colling stages, finally obtains the VN alloy finished product successively; The temperature of said drying stage is 400 ℃ of 180 –, and the temperature of carbonation stage is 1600 ℃ of 1500 –, and the temperature in nitrogenize stage is 1350 ℃ of 1250 –; Colling stages is that water-cooled is to being no more than 100 ℃; Calcination time is 6 hours, and kiln inner pressure is a pressure-fired, and its pressure range is 0.1 – 0.2kg/cm
3
The concentration of volume percent of said nitrogen is 99.999%; The temperature of said carbonation stage is 1550 ℃, and the temperature in nitrogenize stage is 1300 ℃.
Big or small Wei – 180 orders after said vanadium-containing compound grinds; The weight part ratio of said vanadium-containing compound, reaction promotor, carbon compound and sticker is: 70 – 85:3 – 5:10 – 25:0.1 – 10.
Said vanadium-containing compound is powdered Vanadium Pentoxide in FLAKES, vanadous oxide, vanadium tetraoxide, ammonium poly-vanadate, ammonium meta-vanadate, vanadium hydroxide, vanadic acid or their combination.
Said reaction promotor is iron protocarbonate powder, high-purity iron powder, fusion vanadium pentoxide powder, vanadous oxide powder, ferrovanadium dust, VN alloy powder, vanadium carbide powder or vanadium metal powder.
Said carbon compound is crystalloid Graphite Powder 99, amorphous graphite in powder, carbon black powder, wood charcoal powder, Graphite Electrodes carbon dust or their combination.
Said sticker is water, Z 150PH, Tapioca Starch, flour or their combination, and Tapioca Starch, flour are slurry.
The heating means of said calcining kiln are resistive heating, plasma heating or high temperature nitrogen heating.
The vanadiumcontent of said VN alloy is more than or equal to 77.0%.
Compared with prior art, beneficial effect of the present invention is:
1, owing in the working method of a kind of VN alloy of the present invention vanadium-containing compound has been carried out activation treatment, improved the surface reaction activity of vanadium-containing compound, thus be convenient to subsequent reactions evenly, carry out fully; And then the quality of raising vanadium-nitrogen alloy product, and, before mechanical-moulded; Compound was placed 24 hours, and the purpose of this design is to make the abundant hydration of material, the cohesive action of performance water; Thereby improve the wettability of compound, be convenient to improve the intensity of follow-up coarse fodder piece, in addition; The present invention has also carried out ageing treatment to the coarse fodder piece; This kind ageing treatment not only can let the coarse fodder piece solidify, form certain intensity, and can impel the apparent moisture of coarse fodder piece suitably to volatilize to improve its surface tension, helps reducing the surface crack of the finished product VN alloy; Improve its surface quality, thereby improve its quality product.Aforementioned three designs not only can rise to 3.2g/cm with the apparent density of VN alloy
3, the product content of vanadium mentions more than 77.0%, and product yield is higher, can reach more than 70%, in addition, can also keep advantages of higher stability, quality product all with, stable.Therefore not only quality is better, apparent density is high in the present invention, and can continuous production, output is higher, quality product all with, stablize.
2, because the temperature of not only having stressed drying stage in the working method of a kind of VN alloy of the present invention is the temperature of 400 ℃ of 180 –, carbonation stage is that the temperature in 1600 ℃ of 1500 –, nitrogenize stage is 1350 ℃ of 1250 –; But also the control calcination time is 6 hours; Kiln inner pressure is a pressure-fired, and its pressure range is 0.1 – 0.2kg/cm
3, this design not only can improve the quality of product, and can guarantee that stove is stable; Reduce the consumption of water, electricity, nitrogen, resistance heating element, temperature element; And shorten the production cycle greatly, reduce energy consumption, reduce production costs, in addition; The high pure nitrogen that uses in the reaction process can also prevent the product oxidation to the full extent, improves the quality of products.Therefore not only quality product is better, production efficiency is higher in the present invention, and the production cycle is short, production cost is lower.
3, because the vanadium-containing compound of being taked in the working method of a kind of VN alloy of the present invention is powdered Vanadium Pentoxide in FLAKES, vanadous oxide, vanadium tetraoxide, ammonium poly-vanadate, ammonium meta-vanadate, vanadium hydroxide, vanadic acid or their combination; Reaction promotor is iron protocarbonate powder, high-purity iron powder, fusion vanadium pentoxide powder, vanadous oxide powder, ferrovanadium dust, VN alloy powder, vanadium carbide powder or vanadium metal powder; Carbon compound is crystalloid Graphite Powder 99, amorphous graphite in powder, carbon black powder, wood charcoal powder, Graphite Electrodes carbon dust or their combination; Sticker is water, Z 150PH, Tapioca Starch, flour or their combination; And Tapioca Starch, flour are slurry; And the weight part ratio of these four kinds of materials is 70 – 85:3 – 5:10 – 25:0.1 – 10, this shows, can guarantee that the finished product VN alloy has higher vanadium yield through the selection of raw material types and consumption; Carry out but also help the stable of entire reaction course, thereby keep the stable of quality product.Therefore not only quality product is better, the vanadium yield is higher in the present invention, and constant product quality.
Embodiment
Below in conjunction with embodiment the present invention is done further detailed explanation
A kind of working method of VN alloy may further comprise the steps successively:
The first step: adopt abrasive method to carry out mechanical activation vanadium-containing compound earlier and handle, milling time added reaction promotor, carbon compound and sticker then and carries out batch mixing more than or equal to 1 hour, obtained qualified compound;
Second step: earlier above-mentioned compound was placed 24 hours, the compound after will placing again is mechanical-moulded to carry out ageing treatment to the coarse fodder piece then for the coarse fodder piece, is about to the coarse fodder piece and dries naturally at normal temperatures, and the treatment time was more than or equal to 48 hours;
The 3rd step: earlier the coarse fodder piece after the ageing treatment is sent into the calcining kiln from the opening for feed of VN alloy calcining kiln; Simultaneously; High pure nitrogen is sent in the calcining kiln by different inlet mouths; The coarse fodder piece through coming out of the stove behind drying stage, carbonation stage, nitrogenize stage and the colling stages, finally obtains the VN alloy finished product successively; The temperature of said drying stage is 400 ℃ of 180 –, and the temperature of carbonation stage is 1600 ℃ of 1500 –, and the temperature in nitrogenize stage is 1350 ℃ of 1250 –; Colling stages is that water-cooled is to being no more than 100 ℃; Calcination time is 6 hours, and kiln inner pressure is a pressure-fired, and its pressure range is 0.1 – 0.2kg/cm
3
The concentration of volume percent of said nitrogen is 99.999%; The temperature of said carbonation stage is 1550 ℃, and the temperature in nitrogenize stage is 1300 ℃.
Big or small Wei – 180 orders after said vanadium-containing compound grinds; The weight part ratio of said vanadium-containing compound, reaction promotor, carbon compound and sticker is: 70 – 85:3 – 5:10 – 25:0.1 – 10.
Said vanadium-containing compound is powdered Vanadium Pentoxide in FLAKES, vanadous oxide, vanadium tetraoxide, ammonium poly-vanadate, ammonium meta-vanadate, vanadium hydroxide, vanadic acid or their combination.
Said reaction promotor is iron protocarbonate powder, high-purity iron powder, fusion vanadium pentoxide powder, vanadous oxide powder, ferrovanadium dust, VN alloy powder, vanadium carbide powder or vanadium metal powder.
Said carbon compound is crystalloid Graphite Powder 99, amorphous graphite in powder, carbon black powder, wood charcoal powder, Graphite Electrodes carbon dust or their combination.
Said sticker is water, Z 150PH, Tapioca Starch, flour or their combination, and Tapioca Starch, flour are slurry.
The heating means of said calcining kiln are resistive heating, plasma heating or high temperature nitrogen heating.
The vanadiumcontent of said VN alloy is more than or equal to 77.0%.
In the above-mentioned entire reaction course, the kiln chamber is full of nitrogen and keeps pressure-fired, and the combustible gas gas that reaction generates is discharged from exhaust outlet, enters environment after lighting.
Principle of the present invention is explained as follows:
One, adopting abrasive method to carry out mechanical activation to vanadium-containing compound handles:
The levigate of raw material is in order to control the granularity of raw material in the existing production technology; And this producer rule is in order to improve the surface reaction activity of raw material; That is to say,, still will take abrasive method to carry out activation treatment in this working method even the granularity of the raw material that this working method is used has reached traditional technology of preparing requirement; This activation treatment helps subsequent reactions stablizes, carries out fully, helps the raising of VN alloy quality.
Two, compound was placed 24 hours:
The purpose of this design is in order to make the abundant hydration of compound; The cohesive action of performance water improves the wettability of compound, thereby improves the processability of compound; Improve the reactive behavior of compound; Help improving the intensity of follow-up coarse fodder piece, in case it breaks stable the carrying out of being convenient to react in process of production.
Three, the coarse fodder piece is carried out ageing treatment, be about to the coarse fodder piece and dry naturally at normal temperatures, the treatment time was more than or equal to 48 hours:
The purpose one of ageing treatment is to let the coarse fodder piece solidify, and forms certain intensity; The 2nd, impel apparent moisture suitably to volatilize; Suitably improve surface tension; Make it have certain surface strength, thereby reduce the surface crack of vanadium-nitrogen alloy product, improve the surface quality of vanadium-nitrogen alloy product; If do not carry out ageing treatment, then the surface crack of vanadium-nitrogen alloy product is more, color is bad, residual oxygen level high.
Four, the heating means in this working method can be resistive heating, plasma heating or high temperature nitrogen heating:
Resistive heating is simple to operate, but the temperature and the thermo-efficiency of heating have certain restriction.
The plasma heating can be controlled higher Heating temperature, can also activate nitrogen-atoms, helps the nitrogen content of stable prod.
The high temperature nitrogen heating can make the homogeneity of temperature in the material reaction process better, reduces the quality product segregation, the homogeneity of improving the quality of products.
In actual the use, the present invention is according to the suitable heating means of the different choice of product requirement.
Five, the temperature of drying stage is 400 ℃ of 180 –, and the temperature of carbonation stage is 1600 ℃ of 1500 –, and the temperature in nitrogenize stage is 1350 ℃ of 1250 –, colling stages be water-cooled to being no more than 100 ℃:
Drying temperature is to select different concrete use temperatures according to the difference of using raw material, for example: then select 400 ℃ when using Vanadium Pentoxide in FLAKES.The exsiccant purpose is in order to deviate from the water in the coarse fodder piece, alleviates water vapour in the calcination process to the infringement of equipment and consume the carbon amount.
Carbonization temperature is controlled at about 1550 ℃, and purpose is the oxygen of deviating from the raw material, and for nitrogenize creates conditions to form fine and close product, too high temperature can increase production cost, and low excessively temperature both can cause the deoxidation quantity not sufficient, also was unfavorable for the densification of product.
Nitriding temperature is controlled at about 1300 ℃, and purpose is the nitrogen content that improves in the product.Too high temperature is unfavorable for the nitriding reaction, and the depth of penetration of low excessively temperature nitrogen is not enough.
Cooling purpose is for production operation causes and falls nitrogen oxygenation with the secondary oxidation of control product, usually must not be above 100 ℃.
Six, kiln inner pressure is a pressure-fired, and its pressure range is 0.1 – 0.2kg/cm
3:
The effect of nitrogen is as shielding gas and reactant gases; Both can prevent material in reaction process not by secondary oxidation oxygenation; Can reduce the dividing potential drop of reaction product again to greatest extent; Can also participate in reaction as the reactant of nitrogenizing reaction, be the fundamental element that generates VN alloy, so must be full of nitrogen in the whole process of reaction.
During reaction, the atmosphere in the system is pressure-fired, only needs to get final product greater than barometric point slightly, like 0.1 – 0.2kg/cm
3, the purpose of pressure-fired is that the air of control environment oppositely gets into reaction system, and the material of protective reaction system is not oxidized, and its main control parameters is flow and pressure, shows and adjusting through tensimeter and under meter.
Emphasical nitrogen is high pure nitrogen, is that 99.999% purpose is to bring the oxygen amount of system in order to reduce nitrogen to greatest extent like its concentration of volume percent, the oxidation of control product, and the amount of oxidation of nitrogen must not surpass 20ppm usually.
Seven, vanadium-containing compound is powdered Vanadium Pentoxide in FLAKES, vanadous oxide, vanadium tetraoxide, ammonium poly-vanadate, ammonium meta-vanadate, vanadium hydroxide, vanadic acid or their combination, big or small Wei – 180 orders after it grinds:
The effect of vanadium-containing compound is for VN alloy v element to be provided; Especially the most commonly used with Vanadium Pentoxide in FLAKES and vanadous oxide, wherein, from producing the angle of VN alloy; Effect with vanadous oxide is produced is relatively good, and vanadium metal content is best in 64% left and right sides effect.
Granularity Bing Bu Ju Xian Yu – 180 orders commonly used of vanadium-containing compound all are fine like-100 – 200 orders.
Eight, reaction promotor is iron protocarbonate powder, high-purity iron powder, fusion vanadium pentoxide powder, vanadous oxide powder, ferrovanadium dust, VN alloy powder, vanadium carbide powder or vanadium metal powder:
Reaction promotor all is the same on effect, all is for the apparent density that reduces temperature of reaction, raising product, the carrying out of strengthening nitrogenizing reaction.But the activity of non-iron substance in reaction process is quite a lot of, contains the content of vanadium that the vanadium material then can further improve product; The metal Ferrum content of high-purity iron powder requires to reach more than 98%; The VN alloy fine powder is wide material sources then, help realizing recycle; Ferrovanadium fine powder, fusion Vanadium Pentoxide in FLAKES also have similar effects.
Nine, carbon compound is crystalloid Graphite Powder 99, amorphous graphite in powder, carbon black powder, wood charcoal powder, Graphite Electrodes carbon dust or their combination:
Carbon compound all is the same on effect, all provides carbon.But in the same graphite, the better effects if of crystalloid graphite shows as that plasticity is good, reactive behavior is good.
Ten, sticker is water, Z 150PH, Tapioca Starch, flour or their combination, and Tapioca Starch, flour are slurry:
The use form of sticker and the kind of the vanadium-containing compound of consumption and use, apparent character, sticker kind are relevant.The consumption of sticker should be low as much as possible in principle.
Embodiment 1:
Adopt abrasive method to carry out the mechanical activation processing powdery Vanadium Pentoxide in FLAKES of quality 1000kg, Vanadium Pentoxide in FLAKES grade 98%, milling time was ground all Tong Guo – 180 orders of back more than or equal to 1 hour; Adding the 10kg iron protocarbonate again is reaction promotor, and the crystalloid graphite that adds 313.5kg fixed carbon content 98% is carburization agent, and water 70.5kg wet mixing as sticker is added evenly to obtain compound in the dried even back that is mixed; Placing mechanical-moulded after 24 hours is the coarse fodder piece of 50 millimeters of Φ, and the coarse fodder piece dries after 48 hours naturally sends into calcination processing in the calcining kiln, and the temperature of drying stage is 400 ℃; The temperature of carbonation stage is 1600 ℃; The temperature in nitrogenize stage is 1350 ℃, colling stages be water-cooled to being no more than 100 ℃, calcination time is 6 hours; Kiln inner pressure is a pressure-fired, and its pressure range is 0.2kg/cm
3, cooling is come out of the stove can obtain that surface quality is good, reaction evenly, apparent density 3.2g/cm
3Vanadium-nitrogen alloy product 710kg, through analysed preparation content of vanadium 77.25%, nitrogen content 15.8%, the quantity-produced day output reaches 1100kg.
Embodiment 2:
Adopt abrasive method to carry out the mechanical activation processing vanadous oxide of quality 1000kg, vanadium metal content 64.5%, milling time was ground the back all through-180 orders more than or equal to 1 hour; Adding 10kg fusion Vanadium Pentoxide in FLAKES (all through-200 orders, Vanadium Pentoxide in FLAKES grade 98%) is reaction promotor, and the crystalloid graphite that adds 278kg fixed carbon content 98% is carburization agent; The wet mixing of 112kg water is added evenly to obtain compound in the dried even back that is mixed; Placing mechanical-moulded after 24 hours is the coarse fodder piece of 50 millimeters of Φ, and the coarse fodder piece dries after 48 hours naturally sends into calcination processing in the calcining kiln, and the temperature of drying stage is 300 ℃; The temperature of carbonation stage is 1500 ℃; The temperature in nitrogenize stage is 1250 ℃, colling stages be water-cooled to being no more than 100 ℃, calcination time is 6 hours; Kiln inner pressure is a pressure-fired, and its pressure range is 0.1kg/cm
3, cooling is come out of the stove can obtain that surface quality is good, reaction evenly, apparent density 3.2g/cm
3Vanadium-nitrogen alloy product 840kg, through analysed preparation content of vanadium 77.50%, nitrogen content 16.2%, the quantity-produced day output reaches 1800kg.
Embodiment 3:
Adopt abrasive method to carry out the mechanical activation processing powdery vanadium tetraoxide of quality 1000kg, vanadium tetraoxide grade 98%, milling time was ground all Tong Guo – 180 orders of back more than or equal to 1 hour; Add the 10kg high-purity iron powder again as reaction promotor, the carbon black powder that adds 320kg fixed carbon content 95% is a carburization agent, and the dried even back interpolation that is mixed is starched the 80kg wet mixing evenly to obtain compound as the flour of sticker; Placing mechanical-moulded after 24 hours is the coarse fodder piece of 50 millimeters of Φ, and the coarse fodder piece dries after 48 hours naturally sends into calcination processing in the calcining kiln, and the temperature of drying stage is 400 ℃; The temperature of carbonation stage is 1550 ℃; The temperature in nitrogenize stage is 1300 ℃, colling stages be water-cooled to being no more than 100 ℃, calcination time is 6 hours; Kiln inner pressure is a pressure-fired, and its pressure range is 0.15kg/cm
3, cooling is come out of the stove can obtain that surface quality is good, reaction evenly, apparent density 3.2g/cm
3Vanadium-nitrogen alloy product 780kg, through analysed preparation content of vanadium 77.35%, nitrogen content 16.0%.The quantity-produced day output reaches 1300kg.
Therefore not only quality is better, apparent density is high in the present invention, the yield of vanadium is high, and constant product quality, smooth production process, production cost are lower.
Claims (2)
1. the working method of a VN alloy is characterized in that said working method may further comprise the steps successively:
The first step: adopt abrasive method to carry out mechanical activation vanadium-containing compound earlier and handle, milling time added reaction promotor, carbonaceousmaterial and sticker then and carries out batch mixing more than or equal to 1 hour, obtained qualified compound;
Size after said vanadium-containing compound grinds is-180 orders; The weight part ratio of said vanadium-containing compound, reaction promotor, carbonaceousmaterial and sticker is: 70-85: 3-5: 10-25: 0.1-10;
Said vanadium-containing compound is powdered Vanadium Pentoxide in FLAKES, vanadous oxide, vanadium tetraoxide, ammonium poly-vanadate, ammonium meta-vanadate, vanadium hydroxide, vanadic acid or their combination;
Said reaction promotor is iron protocarbonate powder, high-purity iron powder, fusion vanadium pentoxide powder, vanadous oxide powder, ferrovanadium dust, VN alloy powder, vanadium carbide powder or vanadium metal powder;
Said carbonaceousmaterial is crystalloid Graphite Powder 99, amorphous graphite in powder, carbon black powder, wood charcoal powder, Graphite Electrodes carbon dust or their combination;
Said sticker is water, Z 150PH, Tapioca Starch, flour or their combination, and Tapioca Starch, flour are slurry;
Second step: earlier above-mentioned compound was placed 24 hours, the compound after will placing again is mechanical-moulded to carry out ageing treatment to the coarse fodder piece then for the coarse fodder piece, is about to the coarse fodder piece and dries naturally at normal temperatures, and the treatment time was more than or equal to 48 hours;
The 3rd step: earlier the coarse fodder piece after the ageing treatment is sent into the calcining kiln from the opening for feed of VN alloy calcining kiln; Simultaneously; High pure nitrogen is sent in the calcining kiln by different inlet mouths; The coarse fodder piece through coming out of the stove behind drying stage, carbonation stage, nitrogenize stage and the colling stages, finally obtains the VN alloy finished product successively; The temperature of said drying stage is 180-400 ℃, and the temperature of carbonation stage is 1500-1600 ℃, and the temperature in nitrogenize stage is 1250-1350 ℃; Colling stages is that water-cooled is to being no more than 100 ℃; Calcination time is 6 hours, and kiln inner pressure is a pressure-fired, and its pressure range is 0.1-0.2kg/cm
2
The heating means of said calcining kiln are resistive heating, plasma heating or high temperature nitrogen heating;
The concentration of volume percent of said nitrogen is 99.999%;
The vanadiumcontent of said VN alloy is 77.25%-77.50%.
2. the working method of a kind of VN alloy according to claim 1, it is characterized in that: the temperature of said carbonation stage is 1550 ℃, the temperature in nitrogenize stage is 1300 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102845837A CN101921941B (en) | 2010-09-17 | 2010-09-17 | Method for producing vanadium-nitrogen alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102845837A CN101921941B (en) | 2010-09-17 | 2010-09-17 | Method for producing vanadium-nitrogen alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101921941A CN101921941A (en) | 2010-12-22 |
| CN101921941B true CN101921941B (en) | 2012-07-04 |
Family
ID=43337152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102845837A Active CN101921941B (en) | 2010-09-17 | 2010-09-17 | Method for producing vanadium-nitrogen alloy |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101921941B (en) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102864308A (en) * | 2012-10-26 | 2013-01-09 | 淄博华鸣炭素材料有限公司 | Vanadium-nitrogen alloy deoxidizer |
| CN102936678B (en) * | 2012-12-03 | 2013-09-04 | 张春雨 | Vanadium-nitrogen alloy production method |
| CN103225051A (en) * | 2013-05-06 | 2013-07-31 | 南通汉瑞实业有限公司 | Cooling technology of vanadium-nitrogen alloy |
| CN103233116A (en) * | 2013-05-06 | 2013-08-07 | 南通汉瑞实业有限公司 | Forming process of vanadium-nitrogen alloy |
| CN103243254B (en) * | 2013-05-06 | 2015-05-13 | 南通汉瑞新材料科技有限公司 | Production method of vanadium-nitrogen alloy |
| CN103305739B (en) * | 2013-07-09 | 2015-10-21 | 高博 | A kind of high nitrogen VN alloy VN18 and production method thereof |
| CN103388101B (en) * | 2013-07-18 | 2015-06-03 | 陕西丰源钒业科技发展有限公司 | Vanadium-nitrogen microalloy additive and preparation method thereof |
| CN105986140A (en) * | 2015-01-30 | 2016-10-05 | 新疆众豪钒业科技有限公司 | Method and apparatus for producing vanadium nitrogen alloy by using ammonium metavanadate |
| CN105838959B (en) * | 2016-05-31 | 2018-02-27 | 九江市钒宇新材料股份有限公司 | A kind of vanadium nitrogen microalloy additions and preparation method thereof |
| CN106048284B (en) * | 2016-06-13 | 2018-11-30 | 四川攀研技术有限公司 | A kind of VN alloy and preparation method thereof |
| CN106148751A (en) * | 2016-08-01 | 2016-11-23 | 江苏省冶金设计院有限公司 | Prepare the method and system of nitrogen-vanadium alloy |
| CN107699779A (en) * | 2017-08-29 | 2018-02-16 | 湖北华祥合金有限公司 | A kind of VN alloy and its production method |
| CN108004403A (en) * | 2017-12-11 | 2018-05-08 | 四川中益联控实业发展有限公司 | A kind of rotary kiln vanadium nitrogen alloy preparation method and equipment |
| CN108611538A (en) * | 2018-06-08 | 2018-10-02 | 攀钢集团研究院有限公司 | The production method of the full content of vanadium VN alloy of standard lower bound |
| CN109097563B (en) * | 2018-07-26 | 2020-03-24 | 攀钢集团钒钛资源股份有限公司 | Preparation method of vanadium-nitrogen alloy |
| CN109694982B (en) * | 2019-03-13 | 2020-06-30 | 湖北晶洋科技股份有限公司 | Preparation process of vanadium-nitrogen alloy |
| CN111101051B (en) * | 2019-11-05 | 2021-09-10 | 河钢股份有限公司承德分公司 | Method for improving nitrogen content in vanadium-nitrogen alloy production process |
| CN113718105A (en) * | 2021-08-30 | 2021-11-30 | 攀钢集团钒钛资源股份有限公司 | With V2O5Method for efficiently preparing vanadium-nitrogen alloy for heat booster |
| CN114231781B (en) * | 2021-11-12 | 2022-07-19 | 攀钢集团攀枝花钢铁研究院有限公司 | Preparation method of high-nitrogen vanadium-nitrogen alloy |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562057A (en) * | 1984-03-29 | 1985-12-31 | Union Carbide Corporation | Preparation of low-carbon vanadium nitride |
| CN1422800A (en) * | 2001-12-04 | 2003-06-11 | 攀枝花钢铁(集团)公司 | Vanadium nitride production method |
-
2010
- 2010-09-17 CN CN2010102845837A patent/CN101921941B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4562057A (en) * | 1984-03-29 | 1985-12-31 | Union Carbide Corporation | Preparation of low-carbon vanadium nitride |
| CN1422800A (en) * | 2001-12-04 | 2003-06-11 | 攀枝花钢铁(集团)公司 | Vanadium nitride production method |
Non-Patent Citations (1)
| Title |
|---|
| 徐先锋.氮化钒制备过程的研究.《中国优秀硕士学位论文全文数据库 工程科技I辑》.2004,(第01期),41. * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101921941A (en) | 2010-12-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101921941B (en) | Method for producing vanadium-nitrogen alloy | |
| CN103305739B (en) | A kind of high nitrogen VN alloy VN18 and production method thereof | |
| CN109306428A (en) | A kind of preparation process of VN alloy | |
| CN106048284A (en) | Vanadium-nitrogen alloy and preparation method thereof | |
| CN108862391B (en) | Low-Fischer tungsten oxide and preparation method thereof | |
| CN106517201A (en) | Method for producing vanadium carbide through vertical medium-frequency induction furnace | |
| CN101429031B (en) | Macromolecule network preparation method for high-purity ultra-fine aluminum nitride ceramic | |
| CN108330303A (en) | A kind of new method preparing middle and high vanadium iron | |
| CN102115080B (en) | 10B boron carbide and preparation method thereof | |
| CN100443443C (en) | Combustion synthesis method of sub-micron titanium carbide nitride powder | |
| CN109868375A (en) | A kind of production method of crome metal | |
| CN102936678A (en) | Vanadium-nitrogen alloy production method | |
| CN104531999A (en) | Method for preparing vanadium-nitrogen alloy | |
| CN106048279B (en) | A kind of VN alloy liquid-phase sintering production method | |
| CN103388096A (en) | Vanadium-nitrogen alloy production method | |
| CN107699779A (en) | A kind of VN alloy and its production method | |
| CN108517450B (en) | Method for preparing vanadium silicon iron nitride | |
| CN106654248A (en) | Preparation method of high-purity manganese monoxide | |
| CN106498266B (en) | A kind of preparation method of VN alloy | |
| CN103754839B (en) | A kind of preparation method of nanocrystal vanadium nitride powder | |
| CN110184521A (en) | A kind of compound density agent and the method that VN alloy is prepared using it | |
| CN102275919B (en) | Preparation method of superfine niobium carbide powder | |
| CN103993165A (en) | Method for producing ferrovanadium by using ammonium metavanadate granulation to substitute flaky vanadium pentoxide | |
| CN108358242B (en) | Preparation method of vanadium pentoxide with nitrogen element content less than one hundred thousand | |
| CN107098393B (en) | The preparation method of high-purity manganese monoxide |
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 | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20101222 Assignee: Hubei Jing Yang Industrial Co., Ltd. Assignor: Gan Jin|Wang|Huang Qihui|Gao Xiangshan Contract record no.: 2012420000093 Denomination of invention: Production method of vanadium-nitrogen alloy Granted publication date: 20120704 License type: Exclusive License Record date: 20120725 |