METHOD FOR PREPARING COMPLEX POLYESTER BY USING ADSORPTION SYSTEM (VARIANTS) Russian patent published in 2006 - IPC C08G63/78

Abstract RU 2286359 C2

FIELD: chemical technology.

SUBSTANCE: invention relates to a method for separation and extraction of dihydroxy-compound from flowing medium stream that is formed during synthesis of complex polyester. Invention proposes variants for using column-free adsorption system for selective extraction of dihydroxy-compound providing reducing or complete excluding the necessity in using volume columns, reservoirs and similar equipments.

EFFECT: improved preparing method.

24 cl, 1 dwg

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RU 2 286 359 C2

Authors

Debruin Brjus Rodzher

Dates

2006-10-27—Published

2001-12-07—Filed