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- W44979076 abstract "UO/sub 2/ obtained from carbonate solutions by reduction with hydrogen and a nickel wire was used as catalyst for the reduction of uranium with hydrogen. The analysis of UO/sub 2/ used is presented. The reduction rate depends on the surfuce of the catalyst, but not on the concentrati on of uranium in the solution. The influence of the concentration of Na/sub 2/CO/sub 3/, NaHCO/sub 3/, and Na/ sub 2/SO/sub 4/ at constant reduction conditions was examined. In the same reduction conditions, when the catalyst is absent, separation of UO/sub 2/ does not happen. By staying in the open air, UO/sub 2/ oxidizes partially, and this process is accompanied by a decomposition of the carbonate solutions. This can be avoided by preliminary activation of the catalyst, which does not change its catalytic properties. UO/sub 2/ separated by reduction of the solution was also used as catalyst for further reduction. The reduction effect is 99%. (auth)" @default.
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- W44979076 date "1959-10-31" @default.
- W44979076 modified "2023-09-27" @default.
- W44979076 title "REDUCTION OF URANIUM FROM CARBONATE SOLUTIONS WITH HYDROGEN USING UO$sub 2$ AS CATALYST" @default.
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