Patent Number: 044877110
Section: claims

1. A process for making a cinder aggregate from neutralized PUREX waste comprising: (A) concentrating said PUREX waste to about 30 to about 40 percent solids;  (B) adding to said concentrated PUREX waste a colloid of such de-alcoholated alkoxides of silicon, boron, and aluminum as is necessary to produce a mixture containing  (C) heating said mixture to about 400.degree. to about 700.degree. C. to produce said cinder aggregate;  (D) containing and transporting said cinder aggregate; and  (E) disintegrating said cinder aggregate in ammonium hydroxide.  (1) about 0.001 to about 0.002 percent aluminum hydroxide;  (2) about 5 to about 10 percent silica; and  (3) about 1.5 to about 2.5 percent boric acid. 2. A process according to claim 1 wherein said mixture contains: 3. A process according to claim 1 wherein said mixture is heated to about 550.degree. to about 650.degree. C. 4. A process according to claim 1 wherein the alcohol which is de-alcoholated is methanol. 5. A process according to claim 1 wherein said ammonium hydroxide is about 10 to about 29 percent. 6. A process according to claim 1 including the additional last step of heating said disintegrated cinder and ammonium hydroxide to drive off ammonia for recycling. 7. A process according to claim 1 wherein said PUREX waste is at least about 15 percent sodium. 8. Cinders comprising a product produced according to the process of claim 1.