The organic compounds formed during the dissolution of carbide fuels in nitric acid adversely affect the extraction of plutonium by tributyl phosphate. This work was undertaken as a preliminary study of the effect of refluxing the dissolver solutions obtained by dissolution of uranium carbide in 13 Μ nitric acid on the subsequent solvent extractions steps. The extraction of plutonium from carbide dissolver solutions by 30% TBP in ndodecane and the subsequent stripping and partitioning of Pu from the organic phase loaded with uranium and plutonium were studied. The results obtained were compared with those obtained with control solutions containing uranyl nitrate and plutonium(IV) nitrate with concentrations of uranium, plutonium and nitric acid similar to those of the dissolver solutions. The distribution ratios obtained with the dissolver solution and the control solution were comparable, indicating that the dissolver solution obtained after refluxing for 20h may give a feed solution suitable for PUREX process. Similarly, extraction and partitioning experiments were carried out with (U, Pu)C dissolver solutions and the results were similar to the results obtained with uranium carbide dissolver solutions.As an alternative chemical route for the destruction of carbonaceous materials in the UC dissolver solution, the effectiveness of sodium dichromate as an oxidizing agent was also investigated in terms of the percentage carbon remaining after treatment of the dissolver solution with sodium dichromate. The treatment resulted in destruction of nearly 97% of the initial carbon present in the carbide fuel.