Platinum catalyst guide
Catalytic Converter PGM Recycling
Why used converters are an important secondary source of platinum-group metals.
Safety boundary: this page is conceptual. It does not provide chemical synthesis, catalyst-preparation, reaction-condition, gas-handling, reactor-operation, regeneration or precious-metal extraction instructions.
What this topic covers
Why used converters are an important secondary source of platinum-group metals.
Core catalyst ideas
Spent converters retain valuable PGMs even after catalyst performance declines.
Collection, assay and metallurgical recovery form a separate recycling chain.
The site covers circularity and economics conceptually, not extraction or refining procedures.
System tradeoffs
The complete emissions system includes gas composition, temperature history, controls and catalyst condition.
Performance evidence
Thermal aging and contamination can reduce performance even when precious metal remains present.
Lifecycle perspective
Regulated emissions compliance depends on approved test methods and the full system.