FIELD: pyrometallurgical recovery of nonferrous metals. SUBSTANCE: method involves melting of raw material with metal silicon-containing materials and lead to produce lead-tin and iron-arsenic alloys. Novelty consists in leading the process by way of repeated and successive remelting. Silicon-containing materials are first introduced in amount providing silicon content in charge 8-20%, after which formed lead-arsenic alloy is removed and to remaining iron- arsenic alloy, lead is portionwise added, each new portion of lead being added after lead-arsenic alloy from preceding step is removed. More than 70% of tin is recovered into lead-tin alloy and more than 90% of arsenic into lead-arsenic alloy. EFFECT: increased fullness and selectivity of recovering metals.
| Title | Year | Author | Number |
|---|---|---|---|
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| 0 |
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SU406924A1 | |
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| METHOD FOR PRODUCTION OF LEAD OF WASTES | 1994 |
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RU2094509C1 |
