Method for preparing uranium carbide ceramic microspheres by taking carbon nanotubes as carbon source

The embodiment of the invention relates to a method for preparing uranium carbide ceramic microspheres by using carbon nanotubes as a carbon source, which comprises the following steps: mixing a carbon nanotube dispersion liquid, an acid-deficient uranyl nitrate solution, hexamethylenetetramine and urea, and preparing gel spheres by an internal gel method; aging, washing and drying the gel spheres; and calcining the dried spheres, carrying out carbon thermal reduction and sintering. The washing liquid during washing comprises ammonia water. According to the embodiment of the invention, the carbon source in the process of preparing the uranium carbide ceramic microspheres by an internal gel method is optimized, and after the inventor tries to use various carbon-containing substances, the inventor finds that the carbon-containing substances cannot be washed away by ammonia water when the gel spheres prepared by using the carbon nanotubes as the carbon source are washed after being aged in hot silicone oil, and