Vanadium Phosphate Catalyst from Canada
Vanadium phosphorus oxide (VPO) catalyst used in n-butane selective oxidation to maleic anhydride. Classified under HTS 3815.90.1000 as inorganic vanadium compounds functioning as reaction accelerators. Provides high selectivity in gas-phase oxidation.
Duty Rate — Canada → United States
16.5%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Specify V/P atomic ratio (typically 1.0-1.2) in technical data sheets for authenticity
• Include process flow diagrams showing fixed-bed reactor application
• Confirm absence of organic templates used in some synthesis routes