Vanadium Silicide Metathesis Catalyst from Japan
V3Si intermetallic compound used in olefin metathesis reactions under high-pressure conditions. Wholly inorganic vanadium-based catalytic preparation under HTS 3815.90.1000. Offers unique activity for propene disproportionation.
Duty Rate — Japan → United States
16.5%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• XPS surface analysis confirming vanadium-silicon catalytic sites required
• Process patents or literature citations proving metathesis activity essential
• Distinguish from semiconductor materials through reaction performance data