| 摘要 |
<p>PROCESS FOR SEPARATING IRON FROM AN ORGANIC EXTRACTION MEDIUM An organic extraction medium comprising a diluent and an extractant comprising a major part of alkyl phosphonic acid monoalkyl ester having alkyl group of C8 - C10, wherein iron is contained, is contacted with an alkali hydroxide solution or a mixture solution of alkali hydroxide and sucrose or the like, whereby iron is effectively separated from organic extraction medium. Iron may more effectively be removed therefrom by previously contacting the organic extraction medium with mineral acid to remove cobalt beforehand.</p> |
