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SUMMARY AND CONCLUS1ONS
RECOMMENDAT1ONS FOR FURTHER RESEARCH
PRESENTAT1ON OF RESULTS
3 other sections not shown
1ron 30 minutes 60 percent 89 percent minus Bureau of Mines calculated carbonate and manganiferous Cuyuna Range degree of reaction digestion period Digestion Temperature dissolution of silica Effect of sintering extraction of manganese extraction of silica filter residue gpl potassium hydroxide gpl sodium hydroxide hydroxide digest residues ignited ore ratio insoluble compound K20 to 1gnited Kirk and Othmer KOH needed Lithium hydroxide manganese dioxide manganese extraction Manganese From Sodium manganiferous iron manganite Maximum Available K20 Na0H NaOH needed for reaction optical density Oxidizing Atmospheres oxygen atmosphere percent manganese percent minus 200 permanganate potassium carbonate potassium manganate potassium permanganate reaction between sodium reactor vessel S1NTER1NG TEMPERATURE HOURS silica extraction sintering reaction Sintering Temperature Sintering Time hr sodium carbonate sodium hydroxide concentration sodium hydroxide digest sodium hydroxide solutions sodium manganate sodium nitrate sodium permanganate sodium silicate T1ME AT S1NTER1NG taconite theoretical amount total extraction U. S. Bureau valence volumetric flask Wisconsin