Process for the removal of chloride ions, the in contaminated solid solid wastes, such as to dissolve actimides contaminated verbrennungsrueckstaenden, are contained.

摘要

The invention relates to the elimination of the chloride ions present in contaminated solid wastes such as incineration ash contaminated with actinides. / p & & p & it is firstly dissolved the chloride ions in an aqueous solution, for example a nitric acid solution at 4 to 6 mol / l, then is the chloride ions thus dissolved in the aqueous solution, for example, by electrochemical route, optionally in the presence of an oxidation-reduction couple, such as co * * 3 * * + + / co 2 * * * * +, in order to remove them from the solution in the form of chlorine in a stream of gas. / p & & p & this dissolution and this oxidation can be made in the electrolyzer 1, the stream of gas being introduced by 10 to be disposed of in 13. It can then carry out directly into the electrolyzer the dissolution of the actinides by electrolysis in the presence of ions ag * * * * + 2).