Platinum on Silica for Polymerization Processes
Highly dispersed platinum on mesoporous silica gel for olefin polymerization and alkylation reactions in petrochemical processes. HTS 3815.12.00 as supported precious metal catalyst. Enables shape-selective polymerization.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If chromium or Ziegler-Natta catalysts
Conventional polymerization catalysts use base metals
If with organometallic cocatalysts
Complete metallocene/single-site catalyst systems
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Silica pore size distribution via BJH analysis; Brønsted/Lewis acid site density; avoid classification as zeolite (2842)
Related Products under HTS 3815.12.00
Platinum Supported Catalyst for Automotive Catalytic Converters
This supported catalyst uses platinum as the active substance on an alumina carrier, designed to convert harmful exhaust gases like CO, NOx, and hydrocarbons into less harmful substances in vehicle catalytic converters. It falls under HTS 3815.12.00 because it is a supported catalyst with precious metal (platinum) as the active component. Primarily used in gasoline engine vehicles for emission control.
Palladium on Carbon Catalyst for Hydrogenation Reactions
A 5-10% palladium on activated carbon support used in pharmaceutical and fine chemical manufacturing for selective hydrogenation of double bonds and nitro groups. Classified under HTS 3815.12.00 as a supported catalyst with precious metal (palladium) as active substance. Essential for API synthesis and odor removal in flavors/fragrances.
Rhodium/Alumina Catalyst for Acetic Acid Production
High-surface-area rhodium on gamma-alumina support used in the Monsanto process for methanol carbonylation to produce acetic acid. HTS 3815.12.00 classification applies due to precious metal rhodium as active catalytic substance on ceramic support. Industrial scale catalyst for commodity chemical production.
Platinum/Palladium Diesel Oxidation Catalyst
Bimetallic Pt/Pd on cordierite honeycomb support for diesel engine oxidation of CO and HC emissions. Falls under HTS 3815.12.00 as supported catalyst with precious metal compounds active substance. Used in heavy-duty truck and off-road equipment exhaust systems.
Iridium Oxide Supported Catalyst for Hydrazine Decomposition
Iridium oxide on alumina or titania support for catalytic decomposition of hydrazine in spacecraft propulsion systems. HTS 3815.12.00 due to precious metal iridium compound as active substance. Aerospace-grade catalyst for attitude control thrusters.
Gold on Titania Catalyst for CO Oxidation
Nanosize gold particles (2-5nm) supported on TiO2 for low-temperature carbon monoxide oxidation in air purification and fuel cell applications. Classified HTS 3815.12.00 as supported precious metal catalyst. Used in respiratory protection and proton exchange membrane fuel cell startup.