FINING METHOD FOR LEAD BULLION AND LEAD ALLOYS FROM COPPER

摘要

FIELD: metallurgy.;SUBSTANCE: method contains the melting of lead bullion or lead alloy, inserting in it the metal zinc, then mixing of the melt and moving off the generated chemical compound in the form of the set. At the same zinc is inserting under temperature of the melt 410÷450°С, beforehand heated up to 80÷120°С.;EFFECT: it is increased the level of metal fining from copper and it is reduced the time of fining.;2 ex