FIELD: chemical industry. SUBSTANCE: end product of adsorbent of sulfur dioxide. Reagent 1 methyletyhylketon or cyclohexanon or acetophenon. Reagent 2: mixture of formaldehyde and aqueous alkaline or zaaqueous-alcohol solution of sodium sulfide. Conditions of reaction: molar relation of keton, formaldehyde and sulfur is equal to (1.5-2.5) (1.5-2.5):1 and mass relation of alcohol or alkali and sodium sulfide is maintained equal to 19.84-71.42 or (2.5-7.5):50. EFFECT: higher efficiency. 2 cl, 5 tbl
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