| 摘要 |
<p>FIELD: metallurgy of noble metals; processing raw material at high content of non-noble admixtures. SUBSTANCE: proposed method includes pulping of material in water, treatment of pulp by nitric acid to oxidation-reduction potential of 600-700 mV, separation of washing-off of not dissolved materials, chlorination on hydrochloric acid, filtration of pulp, neutralization of hydrochloric acid solution and separation of sediment of admixtures. EFFECT: enhanced degree of separation of noble metals and admixtures. 2 ex</p> |
