Method for continuous reduction and ingot casting of germanium dioxide

The embodiment of the invention discloses a method for continuous reduction and ingot casting of germanium dioxide. The method comprises the following steps of putting the germanium dioxide into a graphite boat, and placing the graphite boat into a furnace; passing the graphite boat filled with the germanium dioxide through seven heating areas in reducing gas atmosphere in sequence, wherein the temperature range of the seven heating areas is 200-1050 DEG C; and then, obtaining germanium ingots after cooling. According to the method, through arrangement of the seven heating areas, the continuous reduction and ingot casting of the germanium dioxide are achieved, and the reduction and ingot casting time is shortened; the labor intensity is low, and the automation degree is high; and the production efficiency and the resistivity of a germanium ingot are improved. 本发明实施例公开了种二氧化锗连续还原铸锭的方法，该方法包括如下步骤：将二氧化锗装入石墨舟中，置入炉膛中，在还原性气体气氛下，将装载二氧化锗的石墨舟依次通过7个加热温区，所述7个加热温区温度范围为200-1050℃；随后，降温冷却即得锗锭。本发明通过7个温区的设置实现二氧化锗连续的还原和铸锭，缩短了还原铸