Process for making cinder aggregates.

摘要

Process for making a cinder aggregate from neutralized PUREX waste. The PUREX waste is concentrated to from 30 to 40 percent solids and a colloid of such de-alcoholated alkoxides of silicon, boron, and aluminum are added to the PUREX waste as are necessary to produce a mixture containing from 0.001 to 1 percent aluminum hydroxide, from 5 to 15 percent silica, and from 1 to 3 percent boric oxide. The resulting mixture is heated to from 400 to 700 DEG C which produces a cinder. The cinder will be transported to a vitrification center where it can be disintegrated in ammonium hydroxide and the nuclear waste can be permanently encapsulated in glass.