Rhenium sorption from simulated solution with AM-p-2 resin in dynamic mode

Abstract

Abstract The article summarizes the research results on rhenium recovery with AM-p-2 strong-base macroporous styrene-divinyl benzene anion exchange resin with dimethylammonium functional groups from the simulated sulphuric medium and rhenium elution in dynamic mode attaining the recovery rate exceeding 90 % after approximately 1 500 bed volumes. Total dynamic exchange capacity 81.0 mg/g was measured, and column sorption parameters were evaluated using corresponding models. The authors denoted that the total dynamic exchange capacity values defined experimentally and calculated by Thomas fit were close. We studied rhenium elution with the solution containing ammonium nitrate 250 g/L and sulphuric acid 25 g/L yielding rhenium-rich solution that is ~63 times higher comparing to the initial solution. A clear peak in the elution profile allows getting rhenium-rich eluates. The research results will be necessary when defining mass-transfer parameters and designing equipment for processing industrial liquors and waste with rhenium recuperation.