公开(公告)号：US09227847B2

公开(公告)日：2016-01-05

申请号：US14049242

申请日：2013-10-09

Applicant: Jianwei Zheng

Inventor： Jianwei Zheng ,  Zhongfang Ying

IPC: C01B21/06 ,  B22F1/02 ,  B22F9/20 ,  C22C1/10 ,  C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C29/16

CPC classification number: C01B21/0617 ,  B22F1/02 ,  B22F9/20 ,  B22F2999/00 ,  C22C1/10 ,  C22C5/02 ,  C22C5/04 ,  C22C5/06 ,  C22C29/16 ,  B22F2201/02 ,  B22F2201/30

Abstract: A method for preparing vanadium-nitrogen alloy, the method including: 1) mixing and pressing a vanadium-containing compound, an agglutinant, and a carbon-premixed reducing agent to yield a spherical raw material, and air drying the spherical raw material; and 2) mixing the spherical raw material with a granular carbonaceous reducing agent to yield a mixture, and continually feeding the mixture into a shaft kiln of a medium frequency induction furnace, purging the shaft kiln with pure nitrogen and maintaining a furnace pressure at between 0.01 and 0.03 mPa, drying the mixture at a temperature of between 100 and 600° C., carbonizing and nitriding at a temperature of between 900 and 1350° C., cooling the resulting product to less than 100° C., and discharging the product.

Abstract translation: 一种制备钒 - 氮合金的方法，该方法包括：1）将含钒化合物，凝集剂和碳预混合还原剂混合并压制得到球形原料，并对球形原料进行空气干燥; 2）将球形原料与粒状碳质还原剂混合，得到混合物，并将混合物连续送入中频感应炉的竖窑中，用纯氮气吹扫竖窑，保持炉内压力在0.01 和0.03mPa，在100-600℃的温度下干燥混合物，在900-1350℃的温度下进行碳化和氮化，将所得产物冷却至小于100℃，并将产物 。