METHOD OF PRODUCING ESTERS FROM CAPROLACTAM PRODUCTION WASTES Russian patent published in 2011 - IPC C07C69/02 C07C67/03 C07C69/06 C07C69/14 

Abstract RU 2422434 C1

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

Knjazev Aleksandr Sergeevich

Mal'Kov Viktor Sergeevich

Sachkov Viktor Ivanovich

Kokova Dar'Ja Alekseevna

Nefedov Roman Andreevich

Volkov Nikolaj Mikhajlovich

Reshetnikov Viktor Nikolaevich

Dates

2011-06-27Published

2010-01-18Filed