FIELD: chemistry.
SUBSTANCE: invention relates to a method of producing phenol and acetone through acid-catalysed decomposition of cumene hydroperoxide in series-connected reactors in two steps at high temperature with simultaneous formation of dicumyl peroxide at the first step followed by its decomposition in a reaction medium at the second step. The process is carried out using a catalyst in form of 2-hydroxy- benzene sulphonic acid of general formula 
, where X and Y denote hydrogen, alkyl, arakyl, halogen, oxyalkyl, sulpho group, alkyl(2-hydroxy benzene sulphonic acid group) in amount of 0.1-1 mmol/l.
EFFECT: method enables to obtain desired products with high output while maintaining low content of hydroxy acetone in the reaction mass.
2 cl, 9 tbl, 7 ex
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