FIELD: chemistry.
SUBSTANCE: invention relates to chemical technology of inorganic substances, namely to separating 40-60% hydrogen peroxide water solution from oxidate, obtained by oxidation of isopropanol with oxygen-containing gas. Essence of invention: at first stage before vacuum rectification light fraction in amount 0.2-0.6 weight fractions of initial oxidate flow is distilled from oxidate in evaporation column at pressure 65-110 kPa, and vacuum ratification is carried out at residual pressure 25-65 kPa.
EFFECT: increase of hydrogen peroxide output and reduction of energy consumption.
2 dwg, 2 tbl, 4 ex
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