With precious metal or precious metal compounds as the active substance
Reaction initiators, reaction accelerators and catalytic preparations, not elsewhere specified or included. > Supported catalysts: > With precious metal or precious metal compounds as the active substance > With precious metal or precious metal compounds as the active substance
Duty Rate (from China)
Products classified under Tariff item 3815.12
Gold on Titania Catalyst for CO Oxidation
Nanosize gold particles (2-5nm) supported on titanium dioxide (TiO2) for low-temperature carbon monoxide oxidation. This catalyst is used in air purification systems and fuel cell applications to remove CO from gas streams. It falls under tariff item 3815.12.00 because gold is a precious metal and the active substance is supported on a carrier.
3815.12.00Iridium Oxide on Carbon Catalyst
Iridium(IV) oxide nanoparticles supported on vulcan carbon black, used in polymer electrolyte membrane (PEM) fuel cells. This catalyst uses iridium, a precious metal compound, as the active substance on a carbon support. It falls under tariff item 3815.12.00 as a supported catalyst with precious metal compounds.
3815.12.00Iridium Oxide Supported Catalyst for Hydrazine Decomposition
Iridium oxide supported on alumina or titania for catalytic decomposition of hydrazine in spacecraft propulsion systems. This aerospace-grade catalyst uses iridium, a precious metal, as the active substance on a support. It is classified under tariff item 3815.12.00 as a supported catalyst with precious metal compounds.
3815.12.00Mixed PGM on Ceria-Zirconia for TWC Front Bed
A Pd-Pt-Rh ternary precious metal catalyst on ceria-zirconia oxygen storage support for three-way converter front bed position. This multi-precious metal supported catalyst optimizes cold-start emissions performance in automotive applications. It falls under tariff item 3815.12.00 as a supported catalyst with precious metal compounds as the active substance.
3815.12.00Palladium on Barium Sulfate for Rosenmund Reduction
A poisoned 5% palladium on barium sulfate catalyst with quinoline for selective hydrogenation of acid chlorides to aldehydes (Rosenmund reduction). This classic organic synthesis catalyst uses palladium, a precious metal, as the active substance on a barium sulfate support. It falls under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Palladium 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. This supported catalyst uses palladium, a precious metal, as the active substance. It is classified under tariff item 3815.12.00 as a supported catalyst with precious metal active substance.
3815.12.00Platinum Black Supported Electrode Catalyst
High-surface-area platinum black on carbon cloth for polymer electrolyte membrane fuel cells (PEMFC). This supported catalyst uses platinum, a precious metal, as the active substance for electrochemical applications. It is classified under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Platinum on Silica for Polymerization Processes
Highly dispersed platinum on mesoporous silica gel for olefin polymerization and alkylation reactions in petrochemical processes. This supported catalyst uses platinum, a precious metal, as the active substance on a silica support. It falls under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Platinum/Palladium Diesel Oxidation Catalyst
Bimetallic Pt/Pd on cordierite honeycomb support for diesel engine oxidation of CO and HC emissions. This supported catalyst uses precious metal compounds as the active substance on a ceramic support. It falls under tariff item 3815.12.00 as a supported catalyst with precious metal active substance.
3815.12.00Platinum/Rhodium Gauze Packs for Nitric Acid Plants
80/20 Pt/Rh knitted wire gauze catalyst packs for ammonia oxidation in the Ostwald process for nitric acid production. These packs use precious metals as the active substance on a metallic support. They are classified under tariff item 3815.12.00 as supported catalysts with precious metal active substance.
3815.12.00Platinum Supported Catalyst for Automotive Catalytic Converters
A supported catalyst using 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. This catalyst is classified under tariff item 3815.12.00 as a supported catalyst with precious metal active substance.
3815.12.00Rhodium/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. This supported catalyst uses rhodium, a precious metal, as the active catalytic substance. It falls under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Rhodium on Carbon for Hydroformylation Reactions
Soluble rhodium complexes adsorbed on activated carbon for supported liquid-phase hydroformylation of propene to butanal. This catalyst uses rhodium, a precious metal, as the active substance on a carbon support. It is classified under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Ruthenium on Alumina for Ammonia Synthesis Alternative
Promoted ruthenium on high-alumina support as a lower-pressure alternative to iron-based Haber-Bosch ammonia synthesis catalysts. This supported catalyst uses ruthenium, a precious metal, as the active substance. It falls under tariff item 3815.12.00 as a supported precious metal catalyst.
3815.12.00Silver/Alumina Catalyst for Ethylene Oxide Production
15-20% silver on low-surface-area alpha-alumina promoted with cesium for selective epoxidation of ethylene to ethylene oxide. This catalyst uses silver, a precious metal, as the active substance on an alumina support. It is classified under tariff item 3815.12.00 as a supported precious metal catalyst.