METHOD OF PURIFYING GLYCOLS FROM IMPURITIES Russian patent published in 2017 - IPC C07C29/76 C07C31/20 C07C41/36 C07C43/11 

Abstract RU 2622395 C1

FIELD: chemistry.

SUBSTANCE: invention relates to a method of purification of glycols from carbonyl compounds and/or their acetals by contacting glycol polymer containing sulphocathionite resin with an acidic form, and pretreated amine with the general formula (1) where R1, R2 can be the same or different and independently represent hydrogen and/or hydrocarbon group with the number of carbon atoms from 1 to 6 selected from aliphatic, aromatic and cycloaliphatic groups.

EFFECT: enables to reduce the content of carbonyl c ompounds and reduce colour indicator glycols.

18 cl, 1 dwg, 1 tbl, 5 ex

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RU 2 622 395 C1

Authors

Lenev Denis Alekseevich

Dates

2017-06-15Published

2016-08-15Filed