发明名称 |
PROCEDE POUR LA RECUPERATION DE L'URANIUM EN FORME DE PERO0YDE DE SOLUTIONS RESULTEES A L'ATTAQUE DES MINERAIS D'URANIUM AVEC ACIDE SULFURIQUE |
摘要 |
Uranium is recovered from a soln. obtd. by reacting a uranium ore with sulphuric acid, by ppn. as the peroxide by addn. of H2O2. Specifically prior to the ppn., alkali is added to the soln. to bring it to a pH equal to or slightly above theat required for ppn. of the U peroxide. The alkaline additive is Ca(OH)2, CaCO3, their mixt. or a mixt. of NaOH with a soluble Ca salt. The alkali pptes. out the sulphates and impurities prior to the sepn. of the U, hence purer U peroxide is obtd. and less H2O2 is needed than in prior art. |
申请公布号 |
RO83406(A) |
申请公布日期 |
1984.04.12 |
申请号 |
RO19810106086 |
申请日期 |
1981.12.23 |
申请人 |
URANIUM PECHINEY UGINE KUHLMANN,FR |
发明人 |
BEGUIN,DIDIER,FR;FLORENCIG,ANTOINE,FR |
分类号 |
C01B15/047;C01G43/01;C22B60/02 |
主分类号 |
C01B15/047 |
代理机构 |
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