| 摘要 |
<p>The invention relates to a process for removing arsenic from auriferous arsenical pyrites by treating them with a solution which contains 30...50g/l Na2CO3 and 10...30g/l NaOH. After filtration, a solution containing 15...20 g/l arsenic and pyrites results, said solution being subjected to further processing, for recovery of sulphur and noble metals.</p> |
