METHOD OF PROCESSING RADIOACTIVE ION-EXCHANGE RESINS Russian patent published in 2017 - IPC G21F9/28 

FIELD: chemistry.

SUBSTANCE: invention relates to the technology of handling radioactive waste, in particular with low- and intermediate-level liquid radioactive waste (LRW) to produce a product suitable for long-term storage. A method for processing radioactive ion exchange resins involves thermochemical treatment of resins with a sulfur-containing reagent, which uses elemental sulfur introduced in excess with respect to the initial weight of the ion exchange resins, and the thermochemical treatment is carried out at a temperature of 480-500°C. In this case, elemental sulfur can be introduced at a sulfur: ion exchange resin ratio of 2÷30:1.

EFFECT: invention provides, along with a significant reduction in the volume of the product to be stored, the simplicity and reliability of the process.

2 cl, 5 dwg, 1 tbl