Waste metal conversion process and products

Compositions: coating or plastic – Coating or plastic compositions – Bituminous material or tarry residue

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Details

423 34, 423 37, 423 43, C08L 9500

Patent

active

043647731

ABSTRACT:
A process is provided by which dissolved metals may be recovered from aqueous waste solutions and converted to a particulate material, which may in turn be used as a filler for products such as asphalt. The process involves effecting reaction in the solution to produce a sludge comprised of metal hydroxides and sulfides, and admixing lime with a concentrate thereof to ultimately produce the filler.

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patent: 3953306 (1976-04-01), Lancy
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patent: 4157942 (1979-06-01), Tuznik et al.

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