FIELD: chemistry.
SUBSTANCE: invention relates to synthesis of esters from the alcohol fraction of caprolactam. The method of producing esters from caprolactam production wastes is realised via esterification of organic acid and alcohol in autocatalytic heat release conditions which support the esterification reaction at temperature 40-130°C using a catalyst in form of cation-exchange resin which is pre-treated with sulphuric acid in amount of 0.4-2 wt % of the weight of the loaded material with cooling down of the reaction mixture before separating the two phases.
EFFECT: high efficiency of the method.
2 cl, 2 tbl, 2 ex
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Authors
Dates
2011-06-27—Published
2010-01-18—Filed