电解电容器用钽粉的工业生产方法是用金属Na还原K2TaF7的金属热还原法(MR法)。该法属炉批式生产,耗时耗电,生产率低,且K2TaF7和Na在反应容器内直接接触,反应位置难以控制,Ta在容器壁上附着,使Ta的回收率低。因此,为了提高高纯Ta粉的产量,需进行析出物的形态、反应位置的控制以 The industrial production of tantalum powder for electrolytic capacitors is the metal thermal reduction method (MR method) of reducing K2TaF7 with metallic Na. The French furnace batch production, time-consuming power, low productivity, and K2TaF7 and Na direct contact within the reaction vessel, the reaction position is difficult to control, Ta in the vessel wall adhesion, so that the recovery rate of Ta is low. Therefore, in order to increase the yield of high purity Ta powder, it is necessary to control the form of the precipitate and the reaction site