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decarburizing (vod) is typically used to produce stainless steels. in comparison to the vd process, vod treatment involves an additional oxygen blowing step to reduce the steels content of oxidizable compounds as e.g. carbon or phosphor. the oxygen flow can also be used for chemical heating of the melt...
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) of pure platinum. the first step with this process is always to crush platinum containing ore and immerse it in reagent containing water-a process generally known as 'froth flotation'. during flotation, air is pumped throughout the ore-water slurry. platinum particles chemically attach onto the oxygen...