Recovery of lead and others metals from smelter flue dusts

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

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75961, 423 94, 423494, 423 98, C21B 1500, C01G 1704, C01G 900, B01D 1100

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059616911

ABSTRACT:
The present invention is concerned with a process for extracting and recovering lead or lead derivatives in high purity from various materials containing lead sulphate, and particularly copper smelter flue dusts. The present process also allows the substantially complete recovery or recycling of precious metals otherwise lost in flue dusts wastes.

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