熔盐电解制备金属钒

Preparation of Vanadium Metal by Molten Salt Electrolysis

以氧化物为原料,采用熔盐电解的方法,制备了金属钒。研究了电解温度、电解电压、电解时间和阳极面积等参数对电解电流的影响规律。用扫描电镜、微区分析和X-射线表征了未完全还原及完全还原的试样的形貌、结构和组成。在850～900℃温度范围、2.9～3.0 V电压范围实验室规模上电解获得了金属钒。该方法具有温度低、流程短、设备简单,适合小规模化生产的优点。

Vanadium metal was prepared by molten salt electrolysis method using vanadium oxide as raw material.The influence of electrolysis parameters such as electrolysis temperature,electrolysis voltage,electrolysis time and the area of anode on electrolysis current was studied.Scanning electro microscope image,microanalysis and X-ray diffraction were used to characterize the composition,structure and morphology of specimens which were incompletely and completely reduced.Vanadium was obtained in the lab-scale production under the temperature of 850~900 ℃ and voltage of 2.9~3.0 V.Due to its short process flow and low temperature and simple equipment requirements,this method exhibits advantages in small scale production of vanadium.