Comprehensive Processing Technology Of Slags Of Phosphorus Industry To Produce Precipitated Silica And Rare-Earth Concentrate
Abstract
The report presents a technological scheme of complex processing of man-made waste of phosphorus production - slag to produce highly dispersed silicon dioxide and a rare-earth metal concentrate. The technological parameters of each operation of the technology are chosen. Recovery of rare-earth metals from phosphorus slags during various operations was, %: leaching – 95.0; extraction - 90.2; stripping on the average ~ 93.2; the production of ∑ REM oxide concentrate is 93.9. The composition of some batches of "white soot" obtained during processing of the technological scheme is shown.
Keywords: Phosphorus slag, Leaching, Extraction, Stripping, Rare-earth metals, White soot, concentrate of Σ REM oxide
References
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