Precious Metal Catalyst Trap Filter in 316L Stainless Steel (AISI 316L (1.4404)) is used for catching palladium, platinum and rhodium catalyst fines after hydrogenation and coupling reactions so the precious metal is recovered instead of lost to the product or waste stream. The alloy gives superior resistance, including chlorides, brines, food CIP and mild acids and is essentially non-magnetic, with a practical service limit of approx. +550 °C continuous.
Alloy Properties
| Grade designation | AISI 316L (1.4404) |
|---|
| Magnetic response | Essentially non-magnetic |
|---|
| Service temperature | approx. +550 °C continuous |
|---|
| Corrosion characteristic | Superior resistance, including chlorides, brines, food CIP and mild acids |
|---|
Specifications of Precious Metal Catalyst Trap Filter Available in 316L Stainless Steel
| Size | Outer diameter (mm) | Length (mm) | Micron rating (u00b5m) | Design pressure (bar) | Media |
|---|
| Lab 25 | 25 | 100 | 1 | 16 | Sintered SS316L powder |
| Pilot 60 | 60 | 250 | 2 | 25 | Sintered SS316L powder |
| Plant 60 u00d7 1000 | 60 | 1000 | 5 | 25 | Sintered 5-layer SS316L mesh |
Where 316L Stainless Steel Precious Metal Catalyst Trap Filter Is Used
- Pharmaceutical API plants: Pd/C and Pt/C recovery after hydrogenation steps.
- Fine & specialty chemicals: homogeneous and supported Rh and Pt catalyst traps.
- Refinery & petrochemical pilots: catalyst fines guard filters ahead of downstream units.
- Precious-metal refiners: recovery filtration of spent-catalyst slurries.
Ordering Precious Metal Catalyst Trap Filter in 316L Stainless Steel
- Micron rating: 1–5 µm sintered media retains typical Pd/C fines.
- Pressure & temperature: Match the reactor discharge conditions and the back-flush pressure.
- Construction: All-welded SS316L with ASME BPE finishes where GMP cleaning is required.
Mistakes to Avoid with Precious Metal Catalyst Trap Filter
- Allowing the cake to dry on the element, creating a fire risk at opening.
- Undersizing filter area so the trap blinds within a single batch.
