Liquid Fluidized Bed Leaching of Spent Platinum and Palladium Catalysts

需要一种更好的方法来实现贵金属的回收， 催化剂载体 常规方法的失败 分离表明一个主要的基础研究工作，以改善关键 操作所需的过程。 研究建议使用 实现金属溶解的流态化系统是关键步骤 以补充发展化学需要达到一个 可行的系统。 事实上，流化床更有利于 连续处理比过去使用的填料塔系统 提供了强大的承诺。 固体制备、试剂浓度和 流化床条件必须全部评估以确定反应 这一新体系的动力学。 实验数据将 研究结果与固定床数据比较， 对于相同的系统以及对于将来扩展到其它流化床， 系统. 流化床的使用在金属开采中相对较新， 可能会唤醒一波探索性的研究， 贵重金属

A better method is needed to achieve the recovery of noble metals from catalyst supports. The failure of routine methods to accomplish this separation suggest a major basic research effort to improve the key operation for the desired process. Research proposed to use a fluidized system to accomplish metal dissolution could be the key step to supplement the developmental chemistry needed to arrive at a workable system. The fact that a fluidized bed is more conductive to continuous processing than the packed tower systems used in the past offers strong promise. Solids preparation, reagent concentrations and fluid bed conditions must all be evaluated to determine reaction kinetics for this novel system. The experimental data which will be gained from the research will be useful relative to the fixed bed data for the same system and also for future extension to other fluidized systems. The use of fluid beds is relatively new in metals winning and could awaken a wave of exploratory research for several of the high value metals.