The final scheme, called the AMAK process, comprised the following successive steps: mineralization with mineral
acids , alkal ization with lime milk , superphosphate addition, a second alkalizat ion, thermal treatment,
and pressure filtration.
The final scheme, called the AMAK process, comprised the following successive steps: mineralization with mineralacids , alkal ization with lime milk , superphosphate addition, a second alkalizat ion, thermal treatment,and pressure filtration.
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