METHOD OF PURIFYING ALCOHOL PRODUCTION WASTES Russian patent published in 2025 - IPC C07C29/88 C07C29/80 C07C31/08 

Abstract RU 2840653 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of purifying alcohol production wastes from carbonyl and carboxyl compounds. Method involves treating material with an acidic agent selected from a spent catalyst for esterification of carboxylic acids and/or re-esterification of carboxylic esters with ethanol with pH not higher than 3 and which is a mixture of at least paratoluene sulphonic acid, water and glycerine.

EFFECT: higher efficiency of purifying.

2 cl, 1 dwg, 8 ex

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RU 2 840 653 C1

Authors

Ershov Mikhail Aleksandrovich

Savelenko Vsevolod Dmitrievich

Ilin Andrei Vsevolodovich

Shevtsov Artemii Andreevich

Aleksanian David Robertovich

Makhova Uliana Aleksandrovna

Rekhletskaia Ekaterina Stanislavovna

Tikhomirova Ekaterina Olegovna

Mochalkina Natalia Evgenevna

Vikhritskaia Anastasiia Olegovna

Dates

2025-05-26Published

2024-08-14Filed