Purification of saponified waste liquor
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The general composition of saponification waste liquor is about 80% water, 10% – 15% inorganic salt (NaCI), 6% – 10% glycerol, 0.1% – 1.0% fatty acid salt (Na salt), 0.1% – 0.5% NaOH. They are from nitrogenous compounds (proteins), phospholipids…
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