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English to Ukrainian translations [PRO] Tech/Engineering - Metallurgy / Casting
English term or phrase:Al-Fe phase diagram
A problem of fractional crystallisation is that the maximum content of contaminant in the downgrade stream is determined by the eutectic composition. In the event of an input stream of aluminium contaminated with 0.5% Fe, and a Fe content of the product stream of less than 0. [1%,] the downgrade stream, having an increased Fe content, is more than 25% of the input stream.
As can readily be seen from the *Al-Fe phase diagram*, the purer the product stream is made, the less contaminated the downgrade stream will be. However, for an economic process a low volume of a highly contaminated downgrade stream is desirable.