tailings, sulfide, raffinate, electrowinning, gangue, froth flotation, sulphide, flocculant, insitu, alkali, aqua regia, percolation, calcine, orthophosphate, saprolite, oxide, ore, arsenic, smelting, ferrous sulphate, hydrometallurgy, decantation, filtrate, dissolver, arsenate, cyanide, clarifiers, manganese, sludges, chlorides, naoh, volatilization, supergene, calcium oxide, upflow, kaolinite, contaminants, carbonization, discolor, zeolite, silicide, demineralization, calcium sulphate, etchant, thiosulphate, zinc sulphate, metallurgical, effluent, solids, gravels, anhydrite, zinc sulfate, sulphate, degas, barium sulfate, activated sludge, cementation, thiosulfate, brine, leachate, eluent, magnesium hydroxide, pyrites, nacn, middlings, carbon tetrachloride, halite, sinter, permanganate, situ, potassium hydroxide, oxidation, copper sulphate, fluidized, quicklime, salts, bicarbonates, amenability, spodumene, granulate, potassium carbonate, sulfuric acid, zinc, sediment, potassium permanganate, ferric oxide, hydroxides, seep, dunite, molecular sieve, wollastonite, cupric, calcium hydroxide, trioxide, dichromate, trichloroethane, sodic, slag, pentachlorophenol, hydrofluoric acid, superheat, diatomite, sol, arid, campbell, lewis, rogers, holmes, mason, willis, *, collins, cooper, express, friday, gilbert, graham, harris, iii, morris, murray, read, extraction, leaching, coating, etch, filtering, drawing, reactor, recovery, simpler, checking, cleaning, drying, etching, mixing, refresh, repeatable, reproducible, scaling, simulated, stripping

action, activity, dribble, filter, natural action, natural process, remove, take, take away, trickle

leaching, percolate, strip