FIELD: chemistry.
SUBSTANCE: present invention relates to a continuous method of removing methylbenzofuran and hydroxyacetone from a stream of crude phenol containing methylbenzofuran and hydroxyacetone. The method involves passing the stream of crude phenol through at least two successive reactors containing an acidic ion-exchange resin, where temperature in the successive reactors drops in the direction of flow of phenol such that temperature in the first reactor in the direction of flow phenol ranges from 100 to 200°C, and temperature in the next reactor in the direction of flow of phenol ranges from 50 to 90°C, without a step for thermal separation between the two successive reactors. The invention also relates to a method of producing phenol used in said phenol purification method.
EFFECT: group of inventions is an efficient and cheap method of purifying phenol to obtain highly pure phenol.
15 cl, 3 ex, 3 dwg
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