ammoniacal leaching

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Vladimir Mackiw — (1923 2001) was a Canadian inventor and industrialist of Ukrainian origin who revolutionized the mining industry with his inventions and techniques. External links * [http://www.halloffame.mining.ca/halloffame/english/bios/mackiw.html Vladimir… … Wikipedia
Cobalt extraction techniques — Cobalt ore Several methods exist for the separation of cobalt from copper and nickel. They depend on the concentration of cobalt and the exact composition of the used ore. Contents … Wikipedia
Chromated copper arsenate — (CCA) is a wood preservative used for timber treatment since the mid 1930s. It is a mix of chromium, copper and arsenic (as Copper(II) arsenate) formulated as oxides or salts. It preserves the wood from decay fungi, wood attacking insects,… … Wikipedia
Wood preservation — All measures that are taken to ensure a long life of wood fall under the definition wood preservation (timber treatment). Apart from structural wood preservation measures, there are a number of different (chemical) preservatives and processes… … Wikipedia
Arséniate de cuivre chromé — L arséniate de cuivre chromé, également appelé arséniate de cuivre chromaté, ou CCA[1], est l un des pesticides du bois aux principes fongicide et insecticide, notamment utilisé en marine contre les tarets. Sa diffusion débute dans les années… … Wikipédia en Français

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