Alkali metal-modified vanadium-phosphorus oxide (VPO) catalyst

  • US 9,931,618 B2
  • Filed: 03/30/2015
  • Issued: 04/03/2018
  • Est. Priority Date: 04/02/2014
  • Status: Active Grant
First Claim
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1. A catalyst comprising a vanadium-phosphorus oxide and an alkali metal selected from the group consisting of sodium, potassium and mixtures thereof, wherein the proportion by weight of alkali metal in the vanadium-phosphorus oxide is in the range from 10 to 400 ppm and wherein the vanadium-phosphorus oxide contains 0.10 to 0.90 w.t.-% molybdenum, based on the total weight of the vanadium-phosphorus oxide, respectively.

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