Patent Number: 048470066
Section: claims

1. A solid bitumen product for long term storage of radioactive waste and having encapsulated therein a granular ion-exchange resin, said ion-exchange resin being at least partially saturated with radioactive ions the product characterized in that the ion-exchange resin is in a swollen aqueous form. 2. A method for producing a solid bitumen product for long term storage of radioactive waste having encapsulated therein a granular ion-exchange resin including radioactive ions, the method characterized by mixing the ion-exchange resin with a bitumen and water emulsion, and by adding the ion-exchange resin to the emulsion in an amount at which the break point of the emulsion is reached and the mixture is transformed to a solid product in which the ion-exchange resinis present in a swollen aqueous form. 3. The method according to claim 2 characterized further is that the mixing is carried out with the ion-exchange resin in a moist swollen condition. 4. The method according to claim 2 characterized further in that the mixing is initiated with the ion-exchange resin in dry condition. 5. The method according to claim 2 characterized further by being carried out at a temperature of from 5-60% C. 6. The method according to claim 2 characterized further by inclusion in the mixing of a cationic emulsion having a pH value lower than 4. 7. The method according to claim 2 characterized further in that the emulsion has a water content of from 15-50% by weight. 8. The method according to claim 2 characterized further in that the emulsion has a water content of from 15-30% by weight.