Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of vanadium carbide
The invention discloses a preparation method of vanadium carbide, which comprises the following steps: uniformly mixing a vanadium-containing raw material and carbonaceous powder, then adding a binder, and carrying out ball milling for 1-3 hours to obtain a mixed material; carrying out compression molding on the mixed material to obtain a pressed blank; and the pressed blank is subjected to a high-temperature solid-phase reaction under the vacuum, inert or reducing gas condition, after the reaction is finished, the pressed blank is cooled to the room temperature under the vacuum, inert or reducing gas condition, and vanadium carbide is obtained. According to the method, the vanadium-containing raw material and the carbonaceous powder are mixed for the first time, then the binder is added, and the ball mill is used for mixing for the second time, so that the vanadium-containing raw material and the carbonaceous powder are mixed more uniformly; according to the method, the material is compacted before calcination, so that the contact area of the vanadium-containing raw material and the carbonaceous powder is effectively increased, the diffusion distance between two reactant particles is reduced, the reaction can be promoted, the obtained product is high in yield and purity, the process is simple, the energy consumption is low, and the method is suitable for large-scale application.
本发明公开了一种碳化钒的制备方法，包括：将含钒原料和碳质粉剂混合均匀，然后加入粘结剂，球磨1～3h，得到混合物料；将混合物料压制成型，得到压坯；将压坯在真空、惰性或还原气体条件下进行高温固相反应，反应结束后，在真空、惰性或还原气体条件下冷却至室温，得到碳化钒。本发明先将含钒原料和碳质粉剂进行一次混料，再添加粘结剂，利用球磨机进行第二次混料，使含钒原料和碳质粉剂混合的更加均匀；本发明在煅烧前将物料压实，有效地增加了含钒原料与碳质粉剂的接触面积，减少两种反应物颗粒之间的扩散距离，能够促进反应进行，得到的产品收率高、纯度高，工艺简单，能耗低，适合大规模应用。
Preparation method of vanadium carbide
The invention discloses a preparation method of vanadium carbide, which comprises the following steps: uniformly mixing a vanadium-containing raw material and carbonaceous powder, then adding a binder, and carrying out ball milling for 1-3 hours to obtain a mixed material; carrying out compression molding on the mixed material to obtain a pressed blank; and the pressed blank is subjected to a high-temperature solid-phase reaction under the vacuum, inert or reducing gas condition, after the reaction is finished, the pressed blank is cooled to the room temperature under the vacuum, inert or reducing gas condition, and vanadium carbide is obtained. According to the method, the vanadium-containing raw material and the carbonaceous powder are mixed for the first time, then the binder is added, and the ball mill is used for mixing for the second time, so that the vanadium-containing raw material and the carbonaceous powder are mixed more uniformly; according to the method, the material is compacted before calcination, so that the contact area of the vanadium-containing raw material and the carbonaceous powder is effectively increased, the diffusion distance between two reactant particles is reduced, the reaction can be promoted, the obtained product is high in yield and purity, the process is simple, the energy consumption is low, and the method is suitable for large-scale application.
本发明公开了一种碳化钒的制备方法，包括：将含钒原料和碳质粉剂混合均匀，然后加入粘结剂，球磨1～3h，得到混合物料；将混合物料压制成型，得到压坯；将压坯在真空、惰性或还原气体条件下进行高温固相反应，反应结束后，在真空、惰性或还原气体条件下冷却至室温，得到碳化钒。本发明先将含钒原料和碳质粉剂进行一次混料，再添加粘结剂，利用球磨机进行第二次混料，使含钒原料和碳质粉剂混合的更加均匀；本发明在煅烧前将物料压实，有效地增加了含钒原料与碳质粉剂的接触面积，减少两种反应物颗粒之间的扩散距离，能够促进反应进行，得到的产品收率高、纯度高，工艺简单，能耗低，适合大规模应用。
Preparation method of vanadium carbide
一种碳化钒的制备方法
YIN CHUNLIN (Autor:in) / HUANG XIANDONG (Autor:in) / YANG LITING (Autor:in) / TANG SHUANGQUAN (Autor:in) / LIU YANG (Autor:in) / WANG ZHEN (Autor:in)
02.04.2024
Patent
Elektronische Ressource
Chinesisch
Preparation method of vanadium carbide and chromium carbide composite material
| Europäisches Patentamt | 2021
Method for producing nano-sized vanadium carbide powder
| Europäisches Patentamt | 2015
Low temperature synthesis of vanadium carbide (VC)
| British Library Online Contents | 2009
Wear mechanisms in vanadium carbide coated steels
| British Library Online Contents | 1997
Vanadium-Related Center in 4H Silicon Carbide
| British Library Online Contents | 2000