The present study describes the first example of utilization of a natural clay mineral as catalyst in a process addressed to chemical valorization of poly-[bisphenol A carbonate] (PC; (1)) wastes. A natural clinochlore was investigated for the first time as the catalyst of the hydrolysis reaction of 1, a potential route to chemical recycling of wastes of this polymeric material. At 473 K, in tetrahydrofuran (THF) as the solvent, the mineral promoted effectively the depolymerization (up to 99%, after 6 h) of 1 by H₂O and the selective (~99%) regeneration of the monomer bisphenol A (BPA, (2)). Temperature, catalyst loading, reaction time, H₂O/PC weight ratio affected markedly the productivity of the process. The role of the catalyst was also focused: the experimental data showed that the exposed brucite-like sheets of clinochlore are involved in the hydrolysis reaction and take active part in promoting the depolymerization process.

本研究描述了在解决多-[双酚A碳酸盐]（PC;（1））废物的化学增值过程中利用天然粘土矿物作为催化剂的第一个例子。首次研究了天然的氯化氯作为1水解反应的催化剂，这是化学回收这种聚合材料废物的潜在途径。在473 K下，在四氢呋喃（THF）中作为溶剂，该矿物有效地促进了H ₂ O对1的解聚作用（在6 h后高达99％）和单体双酚A（〜99％）的选择性再生。 BPA，（2））。温度，催化剂负载量，反应时间，H ₂O / PC重量比显着影响过程的生产率。催化剂的作用也很重要：实验数据表明，暴露的金刚砂状水镁石状薄片参与了水解反应，并积极地促进了解聚过程。