KR20020057680A - Process of Manufacturing V2O5 Briquette - Google Patents

Process of Manufacturing V2O5 Briquette Download PDF

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KR20020057680A
KR20020057680A KR1020010000197A KR20010000197A KR20020057680A KR 20020057680 A KR20020057680 A KR 20020057680A KR 1020010000197 A KR1020010000197 A KR 1020010000197A KR 20010000197 A KR20010000197 A KR 20010000197A KR 20020057680 A KR20020057680 A KR 20020057680A
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vanadium
slug
vanadium pentoxide
cao
briquette
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KR1020010000197A
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Korean (ko)
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최한천
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최한천
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    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/495—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on vanadium, niobium, tantalum, molybdenum or tungsten oxides or solid solutions thereof with other oxides, e.g. vanadates, niobates, tantalates, molybdates or tungstates
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/626—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B
    • C04B35/63—Preparing or treating the powders individually or as batches ; preparing or treating macroscopic reinforcing agents for ceramic products, e.g. fibres; mechanical aspects section B using additives specially adapted for forming the products, e.g.. binder binders
    • C04B35/632—Organic additives
    • C04B35/634—Polymers
    • C04B35/63404—Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • C04B35/63416—Polyvinylalcohols [PVA]; Polyvinylacetates
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Structural Engineering (AREA)
  • Organic Chemistry (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: Provided is a preparation method of vanadium pentoxide(V2O5) briquette used as an additive to increase recovering rate of vanadium(V) contained in steel in steelmaking process like conventional ferro vanadium(Fe-V). CONSTITUTION: The preparation method comprises the steps of: mixing V2O5 power(>=200mesh) with slag A or slag B powder(>=200mesh) in a weight ratio of 0.15-0.6, wherein the slag A comprises 35-60wt.% of CaO, 30-50wt.% of SiO2 and less than 8wt.% of Al2O3, and the slag B comprises 35-60wt.% of CaO, 30-50wt.% of Al2O3 and less than 8wt.% of SiO2; adding 8wt.%(based on V2O5) of diluted polyvinyl alcohol(H2O: PVA=1:1) as a binder, and mixing; pressing with a cylindrical mold; and drying.

Description

오산화 바나듐 브리케트 제조방법{Process of Manufacturing V2O5 Briquette}Process of Manufacturing V2O5 Briquette

본 발명은 제강첨가재로 사용되는 바나듐화합물, 특히 그 중에서도 오산화 바나듐 브리케트(V2O5briquette) 의 제조방법에 관한 것이다. 즉, 본 발명은 현재 제강첨가재로 사용되고 있는 합금형태인 훼로 바나듐(Fe-V) 대신에 오산화 바나듐(V2O5)을 브리케트 형태로 제조하여 용강안에 투입할 수 있도록 하므로써 훼로 바나듐 (Fe-V)과 같은 바나듐(V)의 용강첨가에 있어 결과적으로 바나듐(V)회수율을 높여주는 오산화 바나듐 브리케트를 제조하기 위한 방법에 관한 것이다.The present invention relates to a method for producing a vanadium compound, particularly vanadium pentoxide briquette (V 2 O 5 briquette) used as a steelmaking additive. That is, the present invention manufactures vanadium pentoxide (V 2 O 5 ) in the form of briquettes instead of ferro vanadium (Fe-V), which is currently used as a steelmaking additive, so that it can be introduced into molten steel. The present invention relates to a method for producing a vanadium pentoxide briquette which results in a molten steel addition of vanadium (V) such as V) and consequently increases the vanadium (V) recovery rate.

통상 바나듐은 고속도강, 내열강봉, 공구강동의 합금강 등에 소량첨가되어 강의 재질을 강화시키고 강의 표면을 매끄럽게 하며 탄성을 증강케하므로써 충격을 흡수하고 유연성을 갖게하는 합금성분이다.In general, vanadium is an alloy component that absorbs shock and has flexibility by adding a small amount to high-speed steel, heat-resistant steel bar, and alloy steel of tool steel to strengthen the material of the steel, smooth the surface of the steel, and enhance elasticity.

용강에 소량첨가되는 바나듐은 통상 훼로 바나듐(Fe-V) 형태로 사용된다. 그러나, 훼로 바나듐은 원자재인 오산화 바나듐에 고가의 고순도 알루미늄을 사용하는 테르밋제련법으로 환원 제련하여 제조되고 사용되므로 제조원가가 매우 높은 단점이 있다. 즉, 오산화바나듐이 테르밋 제련법으로 알루미늄과 반응하면 ,Vanadium added to molten steel is usually used in the form of ferro vanadium (Fe-V). However, ferro vanadium is manufactured and used by reduction smelting by thermite smelting method using expensive high-purity aluminum on vanadium pentoxide, which is a raw material, and has a disadvantage in that manufacturing cost is very high. That is, if vanadium pentoxide reacts with aluminum by the thermite smelting method,

3V2O5+ 10Al → 6V + 5Al2O3 3V 2 O 5 + 10Al → 6V + 5Al 2 O 3

(테르밋 제련)(Thermite Smelting)

에서와 같이 바나듐(V)이 환원생성되나, 이 제련법으로 제조할 경우 코스트가 매우 높은 데다 훼로 바나듐 제련시 사람 몸에 유해한 가스와 분진이 일시에 다량발생하여 이를 처리하기 위한 집진 설비 설치비와 운영비가 고가로 소요된다. 또한 환원 제련반응시 오산화 바나듐의 비중이 낮아 반응 후에도 하층부에 위치한 메탈(Fe-V)에 침지(浸漬)되어야할 바나듐(V)의 일부가 상층부인 슬러그에 유입되어 약 2%이상 분포되어 유실 되므로 오산화 바나듐, 부자재인 고가의 알루미늄을 이용한 훼로바나듐(Fe-V)의 테르밋 환원 제련 방법은 종래 상당한 문제점을 안고 있었다.Vanadium (V) is reduced and produced as in this case, but if the smelting method is used, the cost is very high. It is expensive. In addition, since the specific gravity of vanadium pentoxide is low during the reduction and smelting reaction, a part of vanadium (V) to be immersed in the metal (Fe-V) located in the lower layer flows into the upper slug and is lost by being distributed about 2% or more. The smelting method of ferro vanadium (Fe-V) using vanadium pentoxide and expensive aluminum as an auxiliary material has a considerable problem in the past.

또한, 제강중에 오산화 바나듐을 단독으로 투입시 오산화 바나듐(비중: 3.3)의 비중이 낮은데다 용탕이나 슬러그에 직접 반응하기 어려워 강안에 침투가 잘 안되므로 강안의 바나듐(V)회수율이 80%이하로 내려가는 등 그 회수율이 매우 저조하였다.In addition, when vanadium pentoxide is injected into steelmaking alone, the vanadium pentoxide (specific gravity: 3.3) has a low specific gravity and is difficult to react directly with molten metal or slugs, so that the vanadium (V) recovery rate in the river drops below 80%. The recovery rate was very low.

통상적으로 제강중에 훼로바나듐 투입시 강(鋼)안의 바나듐(V)회수율은 약93~95%임을 상기할 때 이는 매우 큰 문제가 아닐 수 없었다.In general, it is a very big problem when recalling that the vanadium (V) recovery rate in steel is about 93 to 95% when ferovanadium is added during steelmaking.

따라서, 본 발명자는 제조공정이 복잡하고, 제조설비가 많이 들며 유해가스를 생성하면서도 바나듐의 손실이 심한 종래의 훼로바나듐의 테르밋 환원제련 방법을 지양하고, 그 개선책을 여러모로 연구한 결과, 원자재인 오산화 바나듐 분말에 CaO·SiO2, CaO·Al2O3가 주성분인 슬러그 2종류를 각각 첨가하여 브리케트형태로 첨가하면 효과적임을 알게 되었으므로 오산화 바나듐 분말에 이들을 각각 혼합한 후 결합재(Binder)로서 물에 희석시킨 폴리비닐 알코올(Polyvinyl alchol)을 섞고 프레스 기계로 압축성형, 건조후 브리케트 형태로 만들어 용강안에 투입하면 상술한 문제점을 일거에 해결할 수 있는데다 아울러 훼로 바나듐(Fe-V)과 같은 바나듐(V)회수율을 올릴수 있는 오산화 바나듐 브리케트를 제조하기에 이르렀다.Therefore, the present inventors avoided the conventional ferrovanadium termit reduction smelting method, which is complicated in the manufacturing process, requires a lot of manufacturing facilities, and generates harmful gases, and has a high loss of vanadium. Two types of slugs, CaO · SiO 2 and CaO · Al 2 O 3 , were added to the vanadium powder, and they were found to be effective in the form of briquettes. Therefore, they were mixed with vanadium pentoxide powder, and then mixed with water as a binder. Mixing the diluted polyvinyl alcohol (Polyvinyl alchol), and compression molding by pressing machine, dried into briquette form and put into molten steel can solve the above problems at once, and vanadium (V-V) such as FeVa The production of vanadium pentoxide briquette that can increase the recovery rate has been achieved.

본 발명자들은 계속적인 연구결과, 강(鋼)안으로 조성되어야 할 바나듐(V)의 회수율을 높이기 위해서는 투입해야 할 오산화 바나듐 분말에 첨가제로서 주성분이 CaO·SiO2또는CaO·Al2O3인 슬러그 분말을 각각 혼합하여 사용하는 것이 용탕과의 반응성이 좋은데다 바나듐(V)회수율에 효과가 있고 그리고 아울러 결합제로서 종래의 벤트나이트 대신 물에 50%이상 희석된 폴리비닐알코올을 사용하는 것이 브리케트 성형에 매우 효과적이고 브리케트 건조시 수분제거 등에도 효과적이라는 것을 알게 되었다.As a result of continuous research, the present inventors have found that slug powder whose main component is CaO · SiO 2 or CaO · Al 2 O 3 as an additive to vanadium pentoxide powder to be added to increase the recovery rate of vanadium (V) to be formed into steel. Mixed with each other is good for reactivity with molten metal and effective in vanadium (V) recovery rate, and at the same time, polyvinyl alcohol diluted by 50% or more in water instead of conventional bentite is used for briquette molding. It has been found to be effective and also effective in removing moisture during briquette drying.

따라서 본 발명에서는 연구결과를 토대로 200메쉬(mesh)이상의 미립의 오산화 바나듐과 주성분이 각각 CaO·SiO2, CaO·Al2O3인 슬러그를 역시 200메쉬(mesh)이상의 미립으로 만든 후 슬러그/오산화 바나듐의 중량비가 0.15~0.6이 되도록 서로 혼합하고 여기에 통상의 점결재인 폴리비닐알코올 희석제를 오산화 바나듐 대비 약8중량%로 첨가하여 혼합, 교반한 다음 프레스원통형틀에서 성형압축한 후 통상의 건조기로 건조하여 오산화 바나듐(V2O5) 브리케트를 제조하였다.Therefore, according to the present invention, slugs of vanadium pentoxide and fine particles of 200 mesh or more and CaO · SiO 2 and CaO · Al 2 O 3 , respectively, are made of fine particles of 200 mesh or more, and then slug / pentoxide. Mix each other so that the weight ratio of vanadium is 0.15 ~ 0.6, add polyvinyl alcohol diluent, which is a conventional caking additive, to about 8% by weight of vanadium pentoxide, mix and stir, and press and mold in a press cylindrical mold, and then use a conventional dryer. To dry to prepare a vanadium pentoxide (V 2 O 5 ) briquette.

여기에서 슬러그 CaO·SiO2의 경우에는 CaO: 35~60%, SiO2: 30~50%, Al2O3: 8%이하의 조성으로 하는 것이 가장 효과적이었고, CaO·Al2O3의 경우에는 반대로 CaO: 35~60%, Al2O3:30~50%, SiO2: 8%이하의 조성으로 하는 것이 가장 효과적이었다. 이를 표 1로 정리하면 다음과 같다.In the case of slug CaO · SiO 2 , the composition of CaO: 35 to 60%, SiO 2 : 30 to 50%, and Al 2 O 3 : 8% or less was most effective, and for CaO · Al 2 O 3 On the contrary, it was most effective to set the composition of CaO: 35 to 60%, Al 2 O 3 : 30 to 50%, and SiO 2 : 8% or less. Table 1 summarizes the following.

(주성분이 CaO·SiO2는 슬러그 A, CaO·Al2O3는 슬러그 B로 표시)(CaO / SiO 2 is represented by slug A and CaO · Al 2 O 3 is represented by slug B)

상기 주성분이 CaO·SiO2및 CaO·Al2O3인 슬러그를 각기 200메쉬(mesh)이상의 미립의 분말로 제조한후, 각각 오산화 바나듐 분말과 혼합한 것을 각기 나누어, 각각 물로 희석된 폴리비닐 알코올을 결합제로 사용하여 압축성형, 건조후 강에 투입시켜 본 결과 강의 바나듐 회수율은 슬러그 A와 슬러그 B가 대략 같은 결과를 나타낸다는 것을 알게 되었다. 즉, 상기 혼합된 분말에 희석된 폴리비닐 알코올을 적당량 섞어 성형·압축 건조후 제강중에 투입하였을때 상기 슬러그A, B는 각각 바나듐(V)과 산화물을 잘 용융시켜 유동성을 높여주고 용탕과 반응을 촉진하므로 바나듐이 강(鋼)안에 용이하게 침투·분리작용을 일으키므로써 결국 회수율을 높게 한다는 것을 알게 되었다.Slugs whose main components are CaO · SiO 2 and CaO · Al 2 O 3 are each made of fine powder of 200 mesh or more, and then each of them is mixed with vanadium pentoxide powder, respectively, and polyvinyl alcohol diluted with water. After the compression molding and the drying into steel after using as a binder, it was found that the sludge A and slug B showed roughly the same results. That is, when a suitable amount of the polyvinyl alcohol diluted in the mixed powder is mixed, and then injected into steelmaking after molding and compression drying, the slugs A and B melt vanadium (V) and oxide, respectively, to improve fluidity and react with the molten metal. As a result, it was found that vanadium easily penetrates and separates into steel, thereby increasing the recovery rate.

본 발명에서 중요한 것은 슬러그 A (또는 B)/오산화바나듐의 중량비가 0.15미만일때에는 슬러그의 량이 적어 산화물과 바나듐의 분리가 잘안이루어져 회수율이 88~99%로 저조하였으나 슬러그/오산화바나듐의 중량비가 0.15~0.6일때에는 바나듐과 산화물의 분리가 잘되어 강안의 바나듐 회수율이 94~96%로 높은 회수율을 나타낼 수 있음을 알게 되었다.Importantly, in the present invention, when the weight ratio of slug A (or B) / vanadium pentoxide is less than 0.15, the amount of slug is small and separation of oxide and vanadium is poor, and the recovery rate is low at 88 to 99%, but the weight ratio of slug / vanadium pentoxide is 0.15 to At 0.6, the separation of vanadium and oxide was good, and it was found that the recovery rate of vanadium in the steel was 94-96%.

그러나, 슬러그/오산화바나듐의 중량비가 0.6초과일때에도 강안의 바나듐 회수율이 94~96%로 높아지지만 오산화 바나듐 브리케트안의 바나듐 함량이 상대적으로 너무 적어지고 슬러그의 조재(造滓)성 부진으로 제강 작업시에 비효율적이라는 것을 알게 되었다.However, even when the weight ratio of slug / vanadium pentoxide is more than 0.6, the recovery rate of vanadium in the steel is increased to 94-96%, but the vanadium content in the vanadium pentoxide briquette is relatively too small and the sluggishness of slug makes steelmaking work. I found it to be inefficient.

한편 결합제로서는 본 발명은 물에 50%이상 희석시킨 폴리비닐알코올을 사용하므로 프레스 작업시에는 오산화바나듐과 슬러그 분말을 혼합후 결합제를 섞은후 약3,000㎏이상의 프레스 압력으로 압축 성형후 건조후 제강중에 투입하였다.Meanwhile, the present invention uses polyvinyl alcohol diluted by 50% or more in water. Therefore, during press work, vanadium pentoxide and slug powder are mixed and the binder is mixed, and then pressed into a steelmaking after drying after compression molding at a press pressure of about 3,000 kg or more. It was.

또한 펠레타이징 기계를 사용하여 성형을 하여 건조하여도 운반 취급상에도 충분한 강도를 가질 수 있다는 것을 발견하였다.It has also been found that molding can be carried out using a pelletizing machine to have sufficient strength even in transport handling even when dried.

이하에 본 발명을 실시예에 의하여 구체적으로 상세히 설명한다.Hereinafter, the present invention will be described in detail with reference to Examples.

실시예Example

(실시예 1)(Example 1)

250메쉬(mesh)의 입도로 분말화한 오산화 바나듐(V2O5) 20㎏, 250메쉬(mesh) 분말로 된 슬러그 A 타입 4㎏를 혼합한 후 결합제로서 (물:폴리비닐알코올=1:1) 1.6㎏ 혼합, 교반하여 프레스틀에 투입하고 약3,000㎏의 프레스 압력을 가하여 브리케트 성형한 다음 인출하여 건조기로 보내어 300℃에서 2시간 동안 수분함량 0.1%이하로 건조시켰다. 이 건조된 오산화 바나듐 브리케트를 통상의 고속도 공구강재 중의 하나인 SKH4공정에 투입한 결과 회수율 95.0%를 얻었다.20 kg of vanadium pentoxide (V 2 O 5 ) powdered to a particle size of 250 mesh and 4 kg of slug A type made of 250 mesh powder were mixed and then used as a binder (water: polyvinyl alcohol = 1: 1) 1.6 kg of the mixture was mixed, stirred, and put into a press mold, and a briquette was formed by applying a press pressure of about 3,000 kg, and then taken out and sent to a dryer, followed by drying at 300 ° C. for 2 hours or less at 0.1% moisture content. This dried vanadium pentoxide briquette was put into SKH4 process which is one of the normal high speed tool steels, and the recovery rate was 95.0%.

(실시예 2)(Example 2)

200메쉬(mesh)이상의 오산화 바나듐 20㎏, 200메쉬(mesh)이상의 상기 슬러그 B 타입 5㎏를 혼합하여 상기 실시예 1과 같은 방법으로 브리케트 성형 및 건조에 의해 제조후 역시 SKH4 공정에 투입한 결과 바나듐 회수율 95.3%를 얻었다.20 kg of vanadium pentoxide over 200 mesh and 5 kg of slug B type over 200 mesh were mixed and manufactured by briquette molding and drying in the same manner as in Example 1, and then put into SKH4 process. Vanadium recovery 95.3% was obtained.

(실시예 3)(Example 3)

200메쉬(mesh)이상의 오산화 바나듐 20㎏, 200메쉬(mesh)이상의 상기 슬러그 A 타입 10㎏를 혼합후 역시 실시예 1과 같은 방법으로 제조후 SKH2 공정에 투입한결과 바나듐 회수율 95.8%를 얻었다.20 kg of vanadium pentoxide pentoxide over 200 mesh and 10 kg of slug A type of 200 mesh or more were mixed and prepared in the same manner as in Example 1, and then added to the SKH2 process to obtain 95.8% of vanadium recovery.

본 발명에 의거 오산화 바나듐 브리케트 형태로 제조하여 제강에 투입하는 것이 훼로바나듐 형태로 사용하는 것에 비해 별도 시설비가 생략되는 점과 공해방지는 물론 불필요한 시설운영비를 생략할 수 있어 대폭적인 원가절감이 가능하게 되었으며 아울러, 높은 바나듐 회수율을 얻을 수 있게되어 실제적으로 큰 향상을 가져올 수 있었다.According to the present invention, the production of vanadium pentoxide in the form of briquettes is added to steel making in comparison with the use of ferro vanadium, and thus the separate facility costs can be omitted and pollution prevention as well as unnecessary facility operation costs can be significantly reduced. In addition, it was possible to obtain a high vanadium recovery yielded a substantial improvement in practice.

Claims (1)

철강의 합금첨가제로서의 바나듐화합물을 제조하기 위한 방법에 있어서, 200메쉬(mesh)이상으로한 오산화 바나듐(V2O5)분말에 200메쉬(mesh)이상의 슬러그 분말 A(화학성분:CaO: 35~60%, SiO230~50%, Al2O38%이하) 또는 슬러그 분말 B (화학성분:CaO 35~60%, Al2O330~50%, SiO28%이하)를 혼합하되 이들 각 슬러그 분말(슬러그 A 또는 슬러그 B)/오산화 바나듐의 비율은 중량비로 0.15~0.6의 비율로 혼합하고 여기에 통상의 점결재인 폴리비닐알코올 희석제를 오산화 바나듐 대비 약 8중량 %로 첨가하고 혼합, 교반한 다음 프레스 원통형 틀에서 성형압축한 후 통상의 건조기로 건조하여 오산화 바나듐 브리케트를 제조하는 것을 특징으로 하는 오산화바나듐 브리케트 제조방법.In the method for producing a vanadium compound as an alloying additive of steel, slug powder A (chemical composition: CaO: 35- or more) of 200 mesh or more in vanadium pentoxide (V 2 O 5 ) powder having 200 mesh or more. 60%, SiO 2 30-50%, Al 2 O 3 8% or less) or slug powder B (Chemical composition: 35-60% CaO, 30-50% Al 2 O 3 , 8% or less SiO 2 ) The ratio of each of these slug powders (slug A or slug B) / vanadium pentoxide is mixed at a ratio of 0.15 to 0.6 by weight, and a polyvinyl alcohol diluent, which is a conventional caking additive, is added at about 8% by weight relative to vanadium pentoxide and mixed. , The method of manufacturing a vanadium pentoxide briquette, characterized in that to produce a vanadium pentoxide briquette by stirring and then molding in a press cylindrical mold and dried in a conventional dryer.
KR1020010000197A 2001-01-03 2001-01-03 Process of Manufacturing V2O5 Briquette KR20020057680A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101149281B1 (en) * 2009-12-24 2012-05-24 현대제철 주식회사 Manufacturing method of vanadium volume guarantee steel
CN116332231A (en) * 2023-04-10 2023-06-27 承德天大钒业有限责任公司 Vanadium pentoxide particles and preparation method thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526613A (en) * 1984-03-12 1985-07-02 Union Carbide Corporation Production of alloy steels using chemically prepared V2 O3 as a vanadium additive
EP0235291A1 (en) * 1985-08-22 1987-09-09 Uralsky Nauchno-Issledovatelsky Institut Chernykh Metallov Method for obtaining vanadium slag

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4526613A (en) * 1984-03-12 1985-07-02 Union Carbide Corporation Production of alloy steels using chemically prepared V2 O3 as a vanadium additive
EP0235291A1 (en) * 1985-08-22 1987-09-09 Uralsky Nauchno-Issledovatelsky Institut Chernykh Metallov Method for obtaining vanadium slag

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101149281B1 (en) * 2009-12-24 2012-05-24 현대제철 주식회사 Manufacturing method of vanadium volume guarantee steel
CN116332231A (en) * 2023-04-10 2023-06-27 承德天大钒业有限责任公司 Vanadium pentoxide particles and preparation method thereof

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