Add time:08/31/2019         Source:sciencedirect.com

Recycling of polymer wastes is an important way for recovering valuable chemicals and reducing the environmental impact of human activities. The increasing amount of poly-bisphenol A carbonate (PC) wastes generated by electronical and electrical equipments, automobiles, optical materials, CDs and other products, makes it necessary to develop processes for their recycling. This paper investigates a recovery process based on the hydrolysis of PC with subcritical liquid water. It has been performed at 260-300 °C in a high pressure batch reactor. The effect of temperature, pressure, residence time and reaction conditions has been investigated. The products have been quantitatively and qualitatively characterized showing a substantially integral recovery of the monomer.

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