Liquid Fluidized Bed Leaching of Spent Platinum and Palladium Catalysts

废铂和钯催化剂的液体流化床浸出

• 批准号: 8604517
• 负责人: Renato Bautista
• 金额: $ 2.96万
• 依托单位: Board of Regents, NSHE, obo University of Nevada, Reno
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1986
• 资助国家: 美国
• 起止时间: 1986-01-15 至 1987-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8604517&HistoricalAwards=false
• 关键词: Liquid; Fluidized; Bed; Leaching; Spent

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.

需要一种更好的方法来实现从催化剂载体中回收贵金属。常规方法未能完成这种分离，这表明了为改进所需工艺的关键操作而进行的重大基础研究工作。研究提出，使用流态化系统来完成金属溶解可能是补充开发化学所需的关键步骤，以达到可行的系统。与过去使用的填料塔系统相比，沸腾床更有利于连续处理，这一事实提供了强大的前景。为了确定这一新体系的反应动力学，必须对固体制备、试剂浓度和床层条件进行评估。本研究获得的实验数据将对同一种体系的固定床数据有一定的参考价值，也可用于将来推广到其他流态化系统。在金属开采中，使用流态床是相对较新的，可能会引发一波对几种高价值金属的探索性研究。