氯化退镀－电解回收废ABS电镀件的基础与关键技术

The technology of the recovery of ABS electroplating scrap through chlorination stripping and electrolysis can effectively circumvent the disadvantage of the stripping process: the low recovery rate, the complexity of product, high recovery cost and severe environmental pollution. Although a pilot production line has been established, we still face the large fluctuation and difficult regulation resulting from the weak grasp for the theoretical support and the inherent mechanism. The project intends to optimize the recovery process achieving the integration of chlorination stripping and electrolysis technology, which then systematically discusses various factors influencing the recycling of plastic electroplate and master the mechanism of the chlorination stripping and electrolysis cycle process, and we compare electrolyte and stripping solution, then explore the best way to convert them and the various conditions enabling the component of chlorination stripping and electrolysis cycle in various process to be relatively stable. Furthermore, we improve the recovery rate and the quality of the plastic and metal to the maximum and optimism through the regulation of the reaction system and conditions. The entire closed circulation solution are non-polluting reducing the loss of materials and energy, which can achieve low-carbon and high efficiency. The method makes ABS plastic scrap first rank material recycling with the recycling rate of more than 99%. Electrolytic copper and nickel chloride meet national standards of first rank product with the copper recovery rate of more than 97% and more than 98% recovery rate of nickel chloride.

氯化退镀－电解回收废ABS电镀件的技术可有效规避酸退镀工艺中的不足：回收率低、产物复杂、回收成本过高且对环境污染严重；尽管已建立中试生产线，但其理论支撑及内在规律的把握不到位，致使波动较大，调控困难；本项目拟改良优化该回收工艺，实现氯化退镀与电解技术的有机集成，系统地探讨影响塑料电镀件回收的各种因素，掌控氯化退镀-电解循环过程的内在规律；比较电解液与退镀液的差异，探讨其转换的最佳方法；摸索电解液-退镀液循环中使各工序中成分相对稳定的各种条件，进而经过调控反应体系和反应条件，最大限度的提高塑料和金属的回收率，提升回收塑料和金属的质量。整个溶液闭路循环，无污染；减少了物料与能源的损耗，达到低碳和高效。本方法使ABS塑料达到一级料回收，回收率达99%以上，电解铜、氯化镍均达到国家标准一级品，铜的回收率达97%以上，氯化镍回收率达98%以上。

氯化退镀－电解回收废ABS电镀件的技术可有效规避酸退镀工艺中的不足：回收率低、产物复杂、回收成本过高且对环境污染严重；尽管已建立中试生产线，但其理论支撑及内在规律的把握不到位，致使波动较大，调控困难；本项目通过改良优化该回收工艺，实现氯化退镀与电解技术的有机集成，较系统地探讨影响塑料电镀件回收的各种因素，掌控氯化退镀-电解循环过程的内在规律；比较电解液与退镀液的差异，探讨其转换的最佳方法；摸索电解液-退镀液循环中使各工序中成分相对稳定的各种条件，进而经过调控反应体系和反应条件，最大限度的提高塑料和金属的回收率，提升回收塑料和金属的质量。整个溶液闭路循环，无污染；减少了物料与能源的损耗，达到低碳和高效。本方法使ABS塑料达到一级料回收，回收率达99%以上，电解铜、氯化镍均达到国家标准一级品，铜的回收率达97%以上，氯化镍回收率达98%以上。