Chemical conversion of poly(carbonate) to bis(hydroxyethyl) ether of bisphenol A. An approach to the chemical recycling of plastic wastes as monomers

Green and inexpensive method to recover Bisphenol-A from polycarbonate wastes

“…Oku et al [5] described the chemical conversion of PC to bis(hydroxyethyl) ether of BPA (BHE-BPA), which can be used as a diol for condensed polymers preparation. In this report, PC had been recycled using conventional heating method in the presence of ethylene glycol (EG) and catalytic amounts of NaOH.…”

Environmentally benign methanolysis of polycarbonate to recover bisphenol A and dimethyl carbonate in ionic liquids

“…With the rapid increase of production and consumption of PC, the chemical recycling of waste PC has been gaining greater attention in recent years to obtain valuable products. For chemical recycling of waste PC to recover raw materials, the methods such as thermal decomposition [1], alcoholysis [2,3] and hydrolysis [4] have been reported. Among them, it is difficult to recover pure BPA by thermal decomposition and only BPA can be recovered by hydrolysis, therefore, methanolysis is the most important method to recover pure monomer BPA and DMC.…”

TiO2/Carbon Composites Prepared from Rice Husk and the Removal of Bisphenol A in Photocatalytic Liquid System

“…Therefore, a rapid and simple wastewater treatment method for BPA is urgently required. Various techniques involving chemical, 9 biological, 6,10 photochemical, 11 and electrochemical 7 procedures have been studied for the treatment of wastewater that contains phenolic compounds. Recently, several researchers have examined the photocatalytic treatment of BPA-containing wastewater through the degradation of BPA in the presence of TiO2 as a photocatalyst.…”