Platinum Group Metal Recycling Technology Development - Final Report | |
Lawrence Shore | |
关键词: CAPITAL; CATALYSTS; DEPRECIATION; ELECTRODES; FUEL CELLS; HYDROFLUORIC ACID; LEACHING; MEMBRANES; MILLING; PLATINUM; RECYCLING Platinum recycling: NafionÂŽ; Hydrogen fluoride; Membrane electrode assembly; Granulation; Agglomeration; Acid leaching; | |
DOI : 10.2172/962699 RP-ID : DOE/GO13104-2 PID : OSTI ID: 962699 Others : TRN: US201003%%720 |
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学科分类:再生能源与代替技术 | |
美国|英语 | |
来源: SciTech Connect | |
【 摘 要 】
BASF Catalysts LLC, formerly Engelhard Corporation, has completed a project to recover Pt from PEM fuel cell membrane electrode assemblies. The project, which began in 2003, has met the project objective of an environmentally-friendly, cost-effective method for recovery of platinum without release of hydrogen fluoride. This has been achieved using a combination of milling, dispersion and acid leaching. 99% recovery of Pt was achieved, and this high yield can be scaled up using one vessel for a single leach and rinse. Leaching was been successfully achieved using a 10% solids level, double the original target. At this solids content, the reagent and utility costs represent ~0.35% of the Pt value of a lot, using very conservative assumptions. The main cost of the process is capital depreciation, followed by labor.
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RO201705170001302LZ | 1385KB | download |