Abstract
Abstract Brush Wellman Inc. produces beryllium and beryllium alloys at its Elmore, Ohio plant. In 1986, the company designed and built an on-site facility to recover beryllium and copper from by-products generated in its processing operations. Generally, the by-product materials are first dissolved. Next, beryllium is extracted into a kerosene solution of DEHPA and back-extracted into an aqueous solution of hydrofluoric (HF) acid. The HF solution containing 40–60 g Be/L is processed along with traditional streams to produce beryllium metal. The beryllium-depleted solution is then diluted for subsequent copper recovery. Copper is extracted with a kerosene solution of LIXR 84 (Henkel Corp.) and back-extracted with lean electrolyte. Copper is electrowon from the fortified electrolyte and used in beryllium copper production. Beryllium yields average 95% copper yields average 97%.
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