Extraction of Rhenium from Lead Sludge of Copper Production

Table 1

The chemical composition of lead sludge.

Element	Pb	Cu	Zn	Hg	As	Se	Fe	Cd	I	Re	Organics
Composition (%)	56.27	0.37	0.11	0.23	0.11	0.33	0.27	0.07	0.03	0.16	5.54