Method of purification of post-production condensates from polyester polyol production
نویسندگان
چکیده
Abstract Nowadays, the topics of closed-loop and eco-design are raised very often, especially in chemical industry. To combine development with these trends, Purinova Sp. z o.o. has focused on pursuing use post-production condensate from polyester polyols production. this end, purification distillation processes have been adapted, both at laboratory production scale, to receive treated decreased Chemical Oxygen Demand (COD) index. The method involves connected by returning top column during polycondensation two stages system afterwards. allows for decreasing COD index contents diethylene glycol 1,4-dioxane. resulting technology consequently allowed tailored condensates polyols. Furthermore, quality obtained it be used closed loop plant.
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ژورنال
عنوان ژورنال: Polish Journal of Chemical Technology
سال: 2022
ISSN: ['1509-8117', '1899-4741']
DOI: https://doi.org/10.2478/pjct-2022-0032