Important experimental data were obtained for the development of an integrated technology for the destruction of accumulated volumes of environmentally hazardous technical mixtures of polychlorobiphenyls. The proposed technology for the destruction of ecotoxicants includes a chemical and subsequent pyrolytic stages. It was established for the first time that the alkoxy- and hydroxy-derivatives of polychlorobiphenyls obtained by chemical interaction with polyethylene glycols in the presence of alkali and with sodium methoxide contain a reduced amount of chlorine in the structure and are less thermostable compounds in comparison with the initial congeners of the Sovol technical mixture. It was found that heating the Sovol technical mixture leads to the evaporation of toxic polychlorobiphenyl congeners and the release into the atmosphere. During the thermal degradation of the obtained alkoxy- and hydroxy-derivatives of polychlorobiphenyls, there is no evaporation of PCBs congeners, and decomposition to the simplest environmentally acceptable volatile substances (CO₂, H₂O, HCl, etc.) is observed. Formation of polychlorinated dibenzodioxins and dibenzofurans is not detected. The proposed comprehensive two-stage approach to the destruction of technical mixtures of polychlorobiphenyls requires less energy and is characterized by a significant reduction in the emission of hazardous polychlorobiphenyls.

获得了用于开发综合技术的重要实验数据，该综合技术用于破坏累积量的对环境有害的多氯联苯技术混合物。提议的破坏生态毒物的技术包括化学步骤和随后的热解步骤。首次确定通过在碱和甲醇钠存在下与聚乙二醇进行化学相互作用而获得的聚氯联苯的烷氧基和羟基衍生物在结构中包含的氯含量降低，并且与之相比，其热稳定性较低Sovol技术混合物的最初同类产品。发现加热Sovol技术混合物会导致有毒的多氯联苯同类物蒸发并释放到大气中。₂，观察到H ₂ O，HCl等。未检测到多氯代二苯并二恶英和二苯并呋喃的形成。拟议的销毁多氯联苯技术混合物的综合两阶段方法所需的能源更少，其特点是可大大减少有害多氯联苯的排放。