×

Gas desulphurization

  • US 4,115,518 A
  • Filed: 11/04/1975
  • Issued: 09/19/1978
  • Est. Priority Date: 11/06/1974
  • Status: Expired due to Term
First Claim
Patent Images

1. A method for desulfurizing flue gases wherein said gases are contacted at a temperature of 250°

  • to 1300°

    C with a reagent in powdered form consisting of a main component selected from the group consisting of calcium, magnesium and mixed calcium and magnesium oxides, hydroxides and carbonates, said main component being impregnated with an additive in an amount of from 0.1 to 15% by mole, said additive being selected from the group consisting of hydrochloric acid, hydrobromic acid and sulfuric acid followed by drying, thus converting said reagent into a sulfate and recovering said sulfate.

View all claims
  • 0 Assignments
Timeline View
Assignment View
    ×
    ×