| 摘要 |
<p>The invention relates to a method for opening up materials containing noble metals, especially metallurgic primary concentrates. The materials are subjected to halogenation at a high temperature using gaseous processing media, gold and the platinum group metals remaining in the residue. The materials undergo an oxidisation process, a reduction process and chloridization, preferably in that order. The method is characterised in that the halogenation medium is activated by UV radiation. The invention also relates to a method for opening up materials containing noble metals, especially metallurgic primary concentrates, whereby the materials are subjected to an oxidisation process, a reduction process and chloridization using gaseous processing media at a high temperature and in that order, gold and the platinum group metals remaining in the residue. This method is characterised in that the chloridization is carried out using first chlorine gas and then HCl gas.</p> |
