Vanadium Boride SCR Catalyst Promoter from Germany
VB2 used as promoter in selective catalytic reduction (SCR) systems for NOx control. Inorganic vanadium compound accelerates ammonia-SCR reactions under HTS 3815.90.1000. Enhances low-temperature activity.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Except for products described in headings 9903.05.85–9903.05.92 and 9903.05.97, articles the product of a member state of the European Union, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 10 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• NOx conversion efficiency curves proving SCR promoter function
• Distinguish from cutting tool materials through application specifications
• Thermal stability data (>600°C) confirming catalyst-grade specifications